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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* userspace-consumer.c
*
* Copyright 2009 CompuLab, Ltd.
*
* Author: Mike Rapoport <[email protected]>
*
* Based of virtual consumer driver:
* Copyright 2008 Wolfson Microelectronics PLC.
* Author: Mark Brown <[email protected]>
*/
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/userspace-consumer.h>
#include <linux/slab.h>
struct userspace_consumer_data {
const char *name;
struct mutex lock;
bool enabled;
bool no_autoswitch;
int num_supplies;
struct regulator_bulk_data *supplies;
};
static ssize_t name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct userspace_consumer_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", data->name);
}
static ssize_t state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct userspace_consumer_data *data = dev_get_drvdata(dev);
if (data->enabled)
return sprintf(buf, "enabled\n");
return sprintf(buf, "disabled\n");
}
static ssize_t state_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct userspace_consumer_data *data = dev_get_drvdata(dev);
bool enabled;
int ret;
/*
* sysfs_streq() doesn't need the \n's, but we add them so the strings
* will be shared with show_state(), above.
*/
if (sysfs_streq(buf, "enabled\n") || sysfs_streq(buf, "1"))
enabled = true;
else if (sysfs_streq(buf, "disabled\n") || sysfs_streq(buf, "0"))
enabled = false;
else {
dev_err(dev, "Configuring invalid mode\n");
return count;
}
mutex_lock(&data->lock);
if (enabled != data->enabled) {
if (enabled)
ret = regulator_bulk_enable(data->num_supplies,
data->supplies);
else
ret = regulator_bulk_disable(data->num_supplies,
data->supplies);
if (ret == 0)
data->enabled = enabled;
else
dev_err(dev, "Failed to configure state: %d\n", ret);
}
mutex_unlock(&data->lock);
return count;
}
static DEVICE_ATTR_RO(name);
static DEVICE_ATTR_RW(state);
static struct attribute *attributes[] = {
&dev_attr_name.attr,
&dev_attr_state.attr,
NULL,
};
static umode_t attr_visible(struct kobject *kobj, struct attribute *attr, int idx)
{
struct device *dev = kobj_to_dev(kobj);
struct userspace_consumer_data *data = dev_get_drvdata(dev);
/* If a name hasn't been set, don't bother with the attribute */
if (attr == &dev_attr_name.attr && !data->name)
return 0;
return attr->mode;
}
static const struct attribute_group attr_group = {
.attrs = attributes,
.is_visible = attr_visible,
};
static int regulator_userspace_consumer_probe(struct platform_device *pdev)
{
struct regulator_userspace_consumer_data tmpdata;
struct regulator_userspace_consumer_data *pdata;
struct userspace_consumer_data *drvdata;
int ret;
pdata = dev_get_platdata(&pdev->dev);
if (!pdata) {
if (!pdev->dev.of_node)
return -EINVAL;
pdata = &tmpdata;
memset(pdata, 0, sizeof(*pdata));
pdata->no_autoswitch = true;
pdata->num_supplies = 1;
pdata->supplies = devm_kzalloc(&pdev->dev, sizeof(*pdata->supplies), GFP_KERNEL);
if (!pdata->supplies)
return -ENOMEM;
pdata->supplies[0].supply = "vout";
}
if (pdata->num_supplies < 1) {
dev_err(&pdev->dev, "At least one supply required\n");
return -EINVAL;
}
drvdata = devm_kzalloc(&pdev->dev,
sizeof(struct userspace_consumer_data),
GFP_KERNEL);
if (drvdata == NULL)
return -ENOMEM;
drvdata->name = pdata->name;
drvdata->num_supplies = pdata->num_supplies;
drvdata->supplies = pdata->supplies;
drvdata->no_autoswitch = pdata->no_autoswitch;
mutex_init(&drvdata->lock);
ret = devm_regulator_bulk_get_exclusive(&pdev->dev, drvdata->num_supplies,
drvdata->supplies);
if (ret) {
dev_err(&pdev->dev, "Failed to get supplies: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, drvdata);
ret = sysfs_create_group(&pdev->dev.kobj, &attr_group);
if (ret != 0)
return ret;
if (pdata->init_on && !pdata->no_autoswitch) {
ret = regulator_bulk_enable(drvdata->num_supplies,
drvdata->supplies);
if (ret) {
dev_err(&pdev->dev,
"Failed to set initial state: %d\n", ret);
goto err_enable;
}
}
ret = regulator_is_enabled(pdata->supplies[0].consumer);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to get regulator status\n");
goto err_enable;
}
drvdata->enabled = !!ret;
return 0;
err_enable:
sysfs_remove_group(&pdev->dev.kobj, &attr_group);
return ret;
}
static int regulator_userspace_consumer_remove(struct platform_device *pdev)
{
struct userspace_consumer_data *data = platform_get_drvdata(pdev);
sysfs_remove_group(&pdev->dev.kobj, &attr_group);
if (data->enabled && !data->no_autoswitch)
regulator_bulk_disable(data->num_supplies, data->supplies);
return 0;
}
static const struct of_device_id regulator_userspace_consumer_of_match[] = {
{ .compatible = "regulator-output", },
{},
};
static struct platform_driver regulator_userspace_consumer_driver = {
.probe = regulator_userspace_consumer_probe,
.remove = regulator_userspace_consumer_remove,
.driver = {
.name = "reg-userspace-consumer",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = regulator_userspace_consumer_of_match,
},
};
module_platform_driver(regulator_userspace_consumer_driver);
MODULE_AUTHOR("Mike Rapoport <[email protected]>");
MODULE_DESCRIPTION("Userspace consumer for voltage and current regulators");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/userspace-consumer.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for Rockchip RK805/RK808/RK818
*
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
* Copyright (c) 2021 Rockchip Electronics Co., Ltd.
*
* Author: Chris Zhong <[email protected]>
* Author: Zhang Qing <[email protected]>
* Author: Xu Shengfei <[email protected]>
*
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
*
* Author: Wadim Egorov <[email protected]>
*/
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/mfd/rk808.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/gpio/consumer.h>
/* Field Definitions */
#define RK808_BUCK_VSEL_MASK 0x3f
#define RK808_BUCK4_VSEL_MASK 0xf
#define RK808_LDO_VSEL_MASK 0x1f
#define RK809_BUCK5_VSEL_MASK 0x7
#define RK817_LDO_VSEL_MASK 0x7f
#define RK817_BOOST_VSEL_MASK 0x7
#define RK817_BUCK_VSEL_MASK 0x7f
#define RK818_BUCK_VSEL_MASK 0x3f
#define RK818_BUCK4_VSEL_MASK 0x1f
#define RK818_LDO_VSEL_MASK 0x1f
#define RK818_LDO3_ON_VSEL_MASK 0xf
#define RK818_BOOST_ON_VSEL_MASK 0xe0
#define RK806_DCDC_SLP_REG_OFFSET 0x0A
#define RK806_NLDO_SLP_REG_OFFSET 0x05
#define RK806_PLDO_SLP_REG_OFFSET 0x06
#define RK806_BUCK_SEL_CNT 0xff
#define RK806_LDO_SEL_CNT 0xff
/* Ramp rate definitions for buck1 / buck2 only */
#define RK808_RAMP_RATE_OFFSET 3
#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET)
#define RK808_DVS2_POL BIT(2)
#define RK808_DVS1_POL BIT(1)
/* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */
#define RK808_SLP_REG_OFFSET 1
/* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */
#define RK808_DVS_REG_OFFSET 2
/* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */
#define RK808_SLP_SET_OFF_REG_OFFSET 2
/* max steps for increase voltage of Buck1/2, equal 100mv*/
#define MAX_STEPS_ONE_TIME 8
#define ENABLE_MASK(id) (BIT(id) | BIT(4 + (id)))
#define DISABLE_VAL(id) (BIT(4 + (id)))
#define RK817_BOOST_DESC(_id, _match, _supply, _min, _max, _step, _vreg,\
_vmask, _ereg, _emask, _enval, _disval, _etime, m_drop) \
{ \
.name = (_match), \
.supply_name = (_supply), \
.of_match = of_match_ptr(_match), \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.id = (_id), \
.n_voltages = (((_max) - (_min)) / (_step) + 1), \
.owner = THIS_MODULE, \
.min_uV = (_min) * 1000, \
.uV_step = (_step) * 1000, \
.vsel_reg = (_vreg), \
.vsel_mask = (_vmask), \
.enable_reg = (_ereg), \
.enable_mask = (_emask), \
.enable_val = (_enval), \
.disable_val = (_disval), \
.enable_time = (_etime), \
.min_dropout_uV = (m_drop) * 1000, \
.ops = &rk817_boost_ops, \
}
#define RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _enval, _disval, _etime, _ops) \
{ \
.name = (_match), \
.supply_name = (_supply), \
.of_match = of_match_ptr(_match), \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.id = (_id), \
.n_voltages = (((_max) - (_min)) / (_step) + 1), \
.owner = THIS_MODULE, \
.min_uV = (_min) * 1000, \
.uV_step = (_step) * 1000, \
.vsel_reg = (_vreg), \
.vsel_mask = (_vmask), \
.enable_reg = (_ereg), \
.enable_mask = (_emask), \
.enable_val = (_enval), \
.disable_val = (_disval), \
.enable_time = (_etime), \
.ops = _ops, \
}
#define RK805_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _etime) \
RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, 0, 0, _etime, &rk805_reg_ops)
#define RK806_REGULATOR(_name, _supply_name, _id, _ops,\
_n_voltages, _vr, _er, _lr, ctrl_bit,\
_rr, _rm, _rt)\
[_id] = {\
.name = _name,\
.supply_name = _supply_name,\
.of_match = of_match_ptr(_name),\
.regulators_node = of_match_ptr("regulators"),\
.id = _id,\
.ops = &_ops,\
.type = REGULATOR_VOLTAGE,\
.n_voltages = _n_voltages,\
.linear_ranges = _lr,\
.n_linear_ranges = ARRAY_SIZE(_lr),\
.vsel_reg = _vr,\
.vsel_mask = 0xff,\
.enable_reg = _er,\
.enable_mask = ENABLE_MASK(ctrl_bit),\
.enable_val = ENABLE_MASK(ctrl_bit),\
.disable_val = DISABLE_VAL(ctrl_bit),\
.of_map_mode = rk8xx_regulator_of_map_mode,\
.ramp_reg = _rr,\
.ramp_mask = _rm,\
.ramp_delay_table = _rt, \
.n_ramp_values = ARRAY_SIZE(_rt), \
.owner = THIS_MODULE,\
}
#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _etime) \
RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, 0, 0, _etime, &rk808_reg_ops)
#define RK817_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _disval, _etime) \
RK8XX_DESC_COM(_id, _match, _supply, _min, _max, _step, _vreg, \
_vmask, _ereg, _emask, _emask, _disval, _etime, &rk817_reg_ops)
#define RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
_enval, _disval, _ops) \
{ \
.name = (_match), \
.supply_name = (_supply), \
.of_match = of_match_ptr(_match), \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.id = (_id), \
.enable_reg = (_ereg), \
.enable_mask = (_emask), \
.enable_val = (_enval), \
.disable_val = (_disval), \
.owner = THIS_MODULE, \
.ops = _ops \
}
#define RK817_DESC_SWITCH(_id, _match, _supply, _ereg, _emask, \
_disval) \
RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
_emask, _disval, &rk817_switch_ops)
#define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask) \
RKXX_DESC_SWITCH_COM(_id, _match, _supply, _ereg, _emask, \
0, 0, &rk808_switch_ops)
struct rk8xx_register_bit {
u8 reg;
u8 bit;
};
#define RK8XX_REG_BIT(_reg, _bit) \
{ \
.reg = _reg, \
.bit = BIT(_bit), \
}
struct rk808_regulator_data {
struct gpio_desc *dvs_gpio[2];
};
static const struct linear_range rk808_ldo3_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
};
#define RK809_BUCK5_SEL_CNT (8)
static const struct linear_range rk809_buck5_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(1500000, 0, 0, 0),
REGULATOR_LINEAR_RANGE(1800000, 1, 3, 200000),
REGULATOR_LINEAR_RANGE(2800000, 4, 5, 200000),
REGULATOR_LINEAR_RANGE(3300000, 6, 7, 300000),
};
#define RK817_BUCK1_MIN0 500000
#define RK817_BUCK1_MAX0 1500000
#define RK817_BUCK1_MIN1 1600000
#define RK817_BUCK1_MAX1 2400000
#define RK817_BUCK3_MAX1 3400000
#define RK817_BUCK1_STP0 12500
#define RK817_BUCK1_STP1 100000
#define RK817_BUCK1_SEL0 ((RK817_BUCK1_MAX0 - RK817_BUCK1_MIN0) /\
RK817_BUCK1_STP0)
#define RK817_BUCK1_SEL1 ((RK817_BUCK1_MAX1 - RK817_BUCK1_MIN1) /\
RK817_BUCK1_STP1)
#define RK817_BUCK3_SEL1 ((RK817_BUCK3_MAX1 - RK817_BUCK1_MIN1) /\
RK817_BUCK1_STP1)
#define RK817_BUCK1_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK1_SEL1 + 1)
#define RK817_BUCK3_SEL_CNT (RK817_BUCK1_SEL0 + RK817_BUCK3_SEL1 + 1)
static const struct linear_range rk817_buck1_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0,
RK817_BUCK1_SEL0, RK817_BUCK1_STP0),
REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1,
RK817_BUCK1_SEL_CNT, RK817_BUCK1_STP1),
};
static const struct linear_range rk817_buck3_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN0, 0,
RK817_BUCK1_SEL0, RK817_BUCK1_STP0),
REGULATOR_LINEAR_RANGE(RK817_BUCK1_MIN1, RK817_BUCK1_SEL0 + 1,
RK817_BUCK3_SEL_CNT, RK817_BUCK1_STP1),
};
static const unsigned int rk808_buck1_2_ramp_table[] = {
2000, 4000, 6000, 10000
};
/* RK817 RK809 */
static const unsigned int rk817_buck1_4_ramp_table[] = {
3000, 6300, 12500, 25000
};
static int rk806_set_mode_dcdc(struct regulator_dev *rdev, unsigned int mode)
{
int rid = rdev_get_id(rdev);
int ctr_bit, reg;
reg = RK806_POWER_FPWM_EN0 + rid / 8;
ctr_bit = rid % 8;
switch (mode) {
case REGULATOR_MODE_FAST:
return regmap_update_bits(rdev->regmap, reg,
PWM_MODE_MSK << ctr_bit,
FPWM_MODE << ctr_bit);
case REGULATOR_MODE_NORMAL:
return regmap_update_bits(rdev->regmap, reg,
PWM_MODE_MSK << ctr_bit,
AUTO_PWM_MODE << ctr_bit);
default:
dev_err(rdev_get_dev(rdev), "mode unsupported: %u\n", mode);
return -EINVAL;
}
return 0;
}
static unsigned int rk806_get_mode_dcdc(struct regulator_dev *rdev)
{
int rid = rdev_get_id(rdev);
int ctr_bit, reg;
unsigned int val;
int err;
reg = RK806_POWER_FPWM_EN0 + rid / 8;
ctr_bit = rid % 8;
err = regmap_read(rdev->regmap, reg, &val);
if (err)
return err;
if ((val >> ctr_bit) & FPWM_MODE)
return REGULATOR_MODE_FAST;
else
return REGULATOR_MODE_NORMAL;
}
static const struct rk8xx_register_bit rk806_dcdc_rate2[] = {
RK8XX_REG_BIT(0xEB, 0),
RK8XX_REG_BIT(0xEB, 1),
RK8XX_REG_BIT(0xEB, 2),
RK8XX_REG_BIT(0xEB, 3),
RK8XX_REG_BIT(0xEB, 4),
RK8XX_REG_BIT(0xEB, 5),
RK8XX_REG_BIT(0xEB, 6),
RK8XX_REG_BIT(0xEB, 7),
RK8XX_REG_BIT(0xEA, 0),
RK8XX_REG_BIT(0xEA, 1),
};
static const unsigned int rk806_ramp_delay_table_dcdc[] = {
50000, 25000, 12500, 6250, 3125, 1560, 961, 390
};
static int rk806_set_ramp_delay_dcdc(struct regulator_dev *rdev, int ramp_delay)
{
int rid = rdev_get_id(rdev);
int regval, ramp_value, ret;
ret = regulator_find_closest_bigger(ramp_delay, rdev->desc->ramp_delay_table,
rdev->desc->n_ramp_values, &ramp_value);
if (ret) {
dev_warn(rdev_get_dev(rdev),
"Can't set ramp-delay %u, setting %u\n", ramp_delay,
rdev->desc->ramp_delay_table[ramp_value]);
}
regval = ramp_value << (ffs(rdev->desc->ramp_mask) - 1);
ret = regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
rdev->desc->ramp_mask, regval);
if (ret)
return ret;
/*
* The above is effectively a copy of regulator_set_ramp_delay_regmap(),
* but that only stores the lower 2 bits for rk806 DCDC ramp. The MSB must
* be stored in a separate register, so this open codes the implementation
* to have access to the ramp_value.
*/
regval = (ramp_value >> 2) & 0x1 ? rk806_dcdc_rate2[rid].bit : 0;
return regmap_update_bits(rdev->regmap, rk806_dcdc_rate2[rid].reg,
rk806_dcdc_rate2[rid].bit,
regval);
}
static const unsigned int rk806_ramp_delay_table_ldo[] = {
100000, 50000, 25000, 12500, 6280, 3120, 1900, 780
};
static int rk806_set_suspend_voltage_range(struct regulator_dev *rdev, int reg_offset, int uv)
{
int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
unsigned int reg;
if (sel < 0)
return -EINVAL;
reg = rdev->desc->vsel_reg + reg_offset;
return regmap_update_bits(rdev->regmap, reg, rdev->desc->vsel_mask, sel);
}
static int rk806_set_suspend_voltage_range_dcdc(struct regulator_dev *rdev, int uv)
{
return rk806_set_suspend_voltage_range(rdev, RK806_DCDC_SLP_REG_OFFSET, uv);
}
static int rk806_set_suspend_voltage_range_nldo(struct regulator_dev *rdev, int uv)
{
return rk806_set_suspend_voltage_range(rdev, RK806_NLDO_SLP_REG_OFFSET, uv);
}
static int rk806_set_suspend_voltage_range_pldo(struct regulator_dev *rdev, int uv)
{
return rk806_set_suspend_voltage_range(rdev, RK806_PLDO_SLP_REG_OFFSET, uv);
}
static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev)
{
struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct gpio_desc *gpio = pdata->dvs_gpio[id];
unsigned int val;
int ret;
if (!gpio || gpiod_get_value(gpio) == 0)
return regulator_get_voltage_sel_regmap(rdev);
ret = regmap_read(rdev->regmap,
rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET,
&val);
if (ret != 0)
return ret;
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
return val;
}
static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev,
unsigned sel)
{
int ret, delta_sel;
unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (ret != 0)
return ret;
tmp = val & ~mask;
old_sel = val & mask;
old_sel >>= ffs(mask) - 1;
delta_sel = sel - old_sel;
/*
* If directly modify the register to change the voltage, we will face
* the risk of overshoot. Put it into a multi-step, can effectively
* avoid this problem, a step is 100mv here.
*/
while (delta_sel > MAX_STEPS_ONE_TIME) {
old_sel += MAX_STEPS_ONE_TIME;
val = old_sel << (ffs(mask) - 1);
val |= tmp;
/*
* i2c is 400kHz (2.5us per bit) and we must transmit _at least_
* 3 bytes (24 bits) plus start and stop so 26 bits. So we've
* got more than 65 us between each voltage change and thus
* won't ramp faster than ~1500 uV / us.
*/
ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
delta_sel = sel - old_sel;
}
sel <<= ffs(mask) - 1;
val = tmp | sel;
ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val);
/*
* When we change the voltage register directly, the ramp rate is about
* 100000uv/us, wait 1us to make sure the target voltage to be stable,
* so we needn't wait extra time after that.
*/
udelay(1);
return ret;
}
static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev,
unsigned sel)
{
struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct gpio_desc *gpio = pdata->dvs_gpio[id];
unsigned int reg = rdev->desc->vsel_reg;
unsigned old_sel;
int ret, gpio_level;
if (!gpio)
return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel);
gpio_level = gpiod_get_value(gpio);
if (gpio_level == 0) {
reg += RK808_DVS_REG_OFFSET;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel);
} else {
ret = regmap_read(rdev->regmap,
reg + RK808_DVS_REG_OFFSET,
&old_sel);
}
if (ret != 0)
return ret;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
sel |= old_sel & ~rdev->desc->vsel_mask;
ret = regmap_write(rdev->regmap, reg, sel);
if (ret)
return ret;
gpiod_set_value(gpio, !gpio_level);
return ret;
}
static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct gpio_desc *gpio = pdata->dvs_gpio[id];
/* if there is no dvs1/2 pin, we don't need wait extra time here. */
if (!gpio)
return 0;
return regulator_set_voltage_time_sel(rdev, old_selector, new_selector);
}
static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
{
unsigned int reg;
int sel = regulator_map_voltage_linear(rdev, uv, uv);
if (sel < 0)
return -EINVAL;
reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->vsel_mask,
sel);
}
static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
{
unsigned int reg;
int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
if (sel < 0)
return -EINVAL;
reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->vsel_mask,
sel);
}
static int rk805_set_suspend_enable(struct regulator_dev *rdev)
{
unsigned int reg;
reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
}
static int rk805_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int reg;
reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->enable_mask,
0);
}
static const struct rk8xx_register_bit rk806_suspend_bits[] = {
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 0),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 1),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 2),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 3),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 4),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 5),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 6),
RK8XX_REG_BIT(RK806_POWER_SLP_EN0, 7),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 6),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 7),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 0),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 1),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 2),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 3),
RK8XX_REG_BIT(RK806_POWER_SLP_EN1, 4),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 1),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 2),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 3),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 4),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 5),
RK8XX_REG_BIT(RK806_POWER_SLP_EN2, 0),
};
static int rk806_set_suspend_enable(struct regulator_dev *rdev)
{
int rid = rdev_get_id(rdev);
return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
rk806_suspend_bits[rid].bit,
rk806_suspend_bits[rid].bit);
}
static int rk806_set_suspend_disable(struct regulator_dev *rdev)
{
int rid = rdev_get_id(rdev);
return regmap_update_bits(rdev->regmap, rk806_suspend_bits[rid].reg,
rk806_suspend_bits[rid].bit, 0);
}
static int rk808_set_suspend_enable(struct regulator_dev *rdev)
{
unsigned int reg;
reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->enable_mask,
0);
}
static int rk808_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int reg;
reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
return regmap_update_bits(rdev->regmap, reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
}
static int rk817_set_suspend_enable_ctrl(struct regulator_dev *rdev,
unsigned int en)
{
unsigned int reg;
int id = rdev_get_id(rdev);
unsigned int id_slp, msk, val;
if (id >= RK817_ID_DCDC1 && id <= RK817_ID_DCDC4)
id_slp = id;
else if (id >= RK817_ID_LDO1 && id <= RK817_ID_LDO8)
id_slp = 8 + (id - RK817_ID_LDO1);
else if (id >= RK817_ID_LDO9 && id <= RK809_ID_SW2)
id_slp = 4 + (id - RK817_ID_LDO9);
else
return -EINVAL;
reg = RK817_POWER_SLP_EN_REG(id_slp / 8);
msk = BIT(id_slp % 8);
if (en)
val = msk;
else
val = 0;
return regmap_update_bits(rdev->regmap, reg, msk, val);
}
static int rk817_set_suspend_enable(struct regulator_dev *rdev)
{
return rk817_set_suspend_enable_ctrl(rdev, 1);
}
static int rk817_set_suspend_disable(struct regulator_dev *rdev)
{
return rk817_set_suspend_enable_ctrl(rdev, 0);
}
static int rk8xx_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode)
{
unsigned int reg;
reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
switch (mode) {
case REGULATOR_MODE_FAST:
return regmap_update_bits(rdev->regmap, reg,
PWM_MODE_MSK, FPWM_MODE);
case REGULATOR_MODE_NORMAL:
return regmap_update_bits(rdev->regmap, reg,
PWM_MODE_MSK, AUTO_PWM_MODE);
default:
dev_err(&rdev->dev, "do not support this mode\n");
return -EINVAL;
}
return 0;
}
static int rk8xx_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
switch (mode) {
case REGULATOR_MODE_FAST:
return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
PWM_MODE_MSK, FPWM_MODE);
case REGULATOR_MODE_NORMAL:
return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
PWM_MODE_MSK, AUTO_PWM_MODE);
default:
dev_err(&rdev->dev, "do not support this mode\n");
return -EINVAL;
}
return 0;
}
static unsigned int rk8xx_get_mode(struct regulator_dev *rdev)
{
unsigned int val;
int err;
err = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (err)
return err;
if (val & FPWM_MODE)
return REGULATOR_MODE_FAST;
else
return REGULATOR_MODE_NORMAL;
}
static int rk8xx_is_enabled_wmsk_regmap(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
if (ret != 0)
return ret;
/* add write mask bit */
val |= (rdev->desc->enable_mask & 0xf0);
val &= rdev->desc->enable_mask;
if (rdev->desc->enable_is_inverted) {
if (rdev->desc->enable_val)
return val != rdev->desc->enable_val;
return (val == 0);
}
if (rdev->desc->enable_val)
return val == rdev->desc->enable_val;
return val != 0;
}
static unsigned int rk8xx_regulator_of_map_mode(unsigned int mode)
{
switch (mode) {
case 1:
return REGULATOR_MODE_FAST;
case 2:
return REGULATOR_MODE_NORMAL;
default:
return REGULATOR_MODE_INVALID;
}
}
static const struct regulator_ops rk805_reg_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage,
.set_suspend_enable = rk805_set_suspend_enable,
.set_suspend_disable = rk805_set_suspend_disable,
};
static const struct regulator_ops rk805_switch_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_enable = rk805_set_suspend_enable,
.set_suspend_disable = rk805_set_suspend_disable,
};
static const struct regulator_ops rk806_ops_dcdc = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_mode = rk806_set_mode_dcdc,
.get_mode = rk806_get_mode_dcdc,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_suspend_mode = rk806_set_mode_dcdc,
.set_ramp_delay = rk806_set_ramp_delay_dcdc,
.set_suspend_voltage = rk806_set_suspend_voltage_range_dcdc,
.set_suspend_enable = rk806_set_suspend_enable,
.set_suspend_disable = rk806_set_suspend_disable,
};
static const struct regulator_ops rk806_ops_nldo = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_suspend_voltage = rk806_set_suspend_voltage_range_nldo,
.set_suspend_enable = rk806_set_suspend_enable,
.set_suspend_disable = rk806_set_suspend_disable,
};
static const struct regulator_ops rk806_ops_pldo = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_suspend_voltage = rk806_set_suspend_voltage_range_pldo,
.set_suspend_enable = rk806_set_suspend_enable,
.set_suspend_disable = rk806_set_suspend_disable,
};
static const struct regulator_ops rk808_buck1_2_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap,
.set_voltage_sel = rk808_buck1_2_set_voltage_sel,
.set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage,
.set_suspend_enable = rk808_set_suspend_enable,
.set_suspend_disable = rk808_set_suspend_disable,
};
static const struct regulator_ops rk808_reg_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage,
.set_suspend_enable = rk808_set_suspend_enable,
.set_suspend_disable = rk808_set_suspend_disable,
};
static const struct regulator_ops rk808_reg_ops_ranges = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage_range,
.set_suspend_enable = rk808_set_suspend_enable,
.set_suspend_disable = rk808_set_suspend_disable,
};
static const struct regulator_ops rk808_switch_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_suspend_enable = rk808_set_suspend_enable,
.set_suspend_disable = rk808_set_suspend_disable,
};
static const struct linear_range rk805_buck_1_2_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(712500, 0, 59, 12500),
REGULATOR_LINEAR_RANGE(1800000, 60, 62, 200000),
REGULATOR_LINEAR_RANGE(2300000, 63, 63, 0),
};
static const struct regulator_ops rk809_buck5_ops_range = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage_range,
.set_suspend_enable = rk817_set_suspend_enable,
.set_suspend_disable = rk817_set_suspend_disable,
};
static const struct regulator_ops rk817_reg_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage,
.set_suspend_enable = rk817_set_suspend_enable,
.set_suspend_disable = rk817_set_suspend_disable,
};
static const struct regulator_ops rk817_boost_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_suspend_enable = rk817_set_suspend_enable,
.set_suspend_disable = rk817_set_suspend_disable,
};
static const struct regulator_ops rk817_buck_ops_range = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_mode = rk8xx_set_mode,
.get_mode = rk8xx_get_mode,
.set_suspend_mode = rk8xx_set_suspend_mode,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_suspend_voltage = rk808_set_suspend_voltage_range,
.set_suspend_enable = rk817_set_suspend_enable,
.set_suspend_disable = rk817_set_suspend_disable,
};
static const struct regulator_ops rk817_switch_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = rk8xx_is_enabled_wmsk_regmap,
.set_suspend_enable = rk817_set_suspend_enable,
.set_suspend_disable = rk817_set_suspend_disable,
};
static const struct regulator_desc rk805_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
.of_match = of_match_ptr("DCDC_REG1"),
.regulators_node = of_match_ptr("regulators"),
.id = RK805_ID_DCDC1,
.ops = &rk808_reg_ops_ranges,
.type = REGULATOR_VOLTAGE,
.n_voltages = 64,
.linear_ranges = rk805_buck_1_2_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
.vsel_reg = RK805_BUCK1_ON_VSEL_REG,
.vsel_mask = RK818_BUCK_VSEL_MASK,
.enable_reg = RK805_DCDC_EN_REG,
.enable_mask = BIT(0),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
.of_match = of_match_ptr("DCDC_REG2"),
.regulators_node = of_match_ptr("regulators"),
.id = RK805_ID_DCDC2,
.ops = &rk808_reg_ops_ranges,
.type = REGULATOR_VOLTAGE,
.n_voltages = 64,
.linear_ranges = rk805_buck_1_2_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk805_buck_1_2_voltage_ranges),
.vsel_reg = RK805_BUCK2_ON_VSEL_REG,
.vsel_mask = RK818_BUCK_VSEL_MASK,
.enable_reg = RK805_DCDC_EN_REG,
.enable_mask = BIT(1),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
.of_match = of_match_ptr("DCDC_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK805_ID_DCDC3,
.ops = &rk805_switch_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.enable_reg = RK805_DCDC_EN_REG,
.enable_mask = BIT(2),
.owner = THIS_MODULE,
},
RK805_DESC(RK805_ID_DCDC4, "DCDC_REG4", "vcc4", 800, 3400, 100,
RK805_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
RK805_DCDC_EN_REG, BIT(3), 0),
RK805_DESC(RK805_ID_LDO1, "LDO_REG1", "vcc5", 800, 3400, 100,
RK805_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
BIT(0), 400),
RK805_DESC(RK805_ID_LDO2, "LDO_REG2", "vcc5", 800, 3400, 100,
RK805_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
BIT(1), 400),
RK805_DESC(RK805_ID_LDO3, "LDO_REG3", "vcc6", 800, 3400, 100,
RK805_LDO3_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
BIT(2), 400),
};
static const struct linear_range rk806_buck_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 160, 6250), /* 500mV ~ 1500mV */
REGULATOR_LINEAR_RANGE(1500000, 161, 237, 25000), /* 1500mV ~ 3400mV */
REGULATOR_LINEAR_RANGE(3400000, 238, 255, 0),
};
static const struct linear_range rk806_ldo_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 232, 12500), /* 500mV ~ 3400mV */
REGULATOR_LINEAR_RANGE(3400000, 233, 255, 0), /* 500mV ~ 3400mV */
};
static const struct regulator_desc rk806_reg[] = {
RK806_REGULATOR("dcdc-reg1", "vcc1", RK806_ID_DCDC1, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK1_ON_VSEL,
RK806_POWER_EN0, rk806_buck_voltage_ranges, 0,
RK806_BUCK1_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg2", "vcc2", RK806_ID_DCDC2, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK2_ON_VSEL,
RK806_POWER_EN0, rk806_buck_voltage_ranges, 1,
RK806_BUCK2_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg3", "vcc3", RK806_ID_DCDC3, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK3_ON_VSEL,
RK806_POWER_EN0, rk806_buck_voltage_ranges, 2,
RK806_BUCK3_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg4", "vcc4", RK806_ID_DCDC4, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK4_ON_VSEL,
RK806_POWER_EN0, rk806_buck_voltage_ranges, 3,
RK806_BUCK4_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg5", "vcc5", RK806_ID_DCDC5, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK5_ON_VSEL,
RK806_POWER_EN1, rk806_buck_voltage_ranges, 0,
RK806_BUCK5_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg6", "vcc6", RK806_ID_DCDC6, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK6_ON_VSEL,
RK806_POWER_EN1, rk806_buck_voltage_ranges, 1,
RK806_BUCK6_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg7", "vcc7", RK806_ID_DCDC7, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK7_ON_VSEL,
RK806_POWER_EN1, rk806_buck_voltage_ranges, 2,
RK806_BUCK7_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg8", "vcc8", RK806_ID_DCDC8, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK8_ON_VSEL,
RK806_POWER_EN1, rk806_buck_voltage_ranges, 3,
RK806_BUCK8_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg9", "vcc9", RK806_ID_DCDC9, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK9_ON_VSEL,
RK806_POWER_EN2, rk806_buck_voltage_ranges, 0,
RK806_BUCK9_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("dcdc-reg10", "vcc10", RK806_ID_DCDC10, rk806_ops_dcdc,
RK806_BUCK_SEL_CNT, RK806_BUCK10_ON_VSEL,
RK806_POWER_EN2, rk806_buck_voltage_ranges, 1,
RK806_BUCK10_CONFIG, 0xc0, rk806_ramp_delay_table_dcdc),
RK806_REGULATOR("nldo-reg1", "vcc13", RK806_ID_NLDO1, rk806_ops_nldo,
RK806_LDO_SEL_CNT, RK806_NLDO1_ON_VSEL,
RK806_POWER_EN3, rk806_ldo_voltage_ranges, 0,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("nldo-reg2", "vcc13", RK806_ID_NLDO2, rk806_ops_nldo,
RK806_LDO_SEL_CNT, RK806_NLDO2_ON_VSEL,
RK806_POWER_EN3, rk806_ldo_voltage_ranges, 1,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("nldo-reg3", "vcc13", RK806_ID_NLDO3, rk806_ops_nldo,
RK806_LDO_SEL_CNT, RK806_NLDO3_ON_VSEL,
RK806_POWER_EN3, rk806_ldo_voltage_ranges, 2,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("nldo-reg4", "vcc14", RK806_ID_NLDO4, rk806_ops_nldo,
RK806_LDO_SEL_CNT, RK806_NLDO4_ON_VSEL,
RK806_POWER_EN3, rk806_ldo_voltage_ranges, 3,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("nldo-reg5", "vcc14", RK806_ID_NLDO5, rk806_ops_nldo,
RK806_LDO_SEL_CNT, RK806_NLDO5_ON_VSEL,
RK806_POWER_EN5, rk806_ldo_voltage_ranges, 2,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg1", "vcc11", RK806_ID_PLDO1, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO1_ON_VSEL,
RK806_POWER_EN4, rk806_ldo_voltage_ranges, 1,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg2", "vcc11", RK806_ID_PLDO2, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO2_ON_VSEL,
RK806_POWER_EN4, rk806_ldo_voltage_ranges, 2,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg3", "vcc11", RK806_ID_PLDO3, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO3_ON_VSEL,
RK806_POWER_EN4, rk806_ldo_voltage_ranges, 3,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg4", "vcc12", RK806_ID_PLDO4, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO4_ON_VSEL,
RK806_POWER_EN5, rk806_ldo_voltage_ranges, 0,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg5", "vcc12", RK806_ID_PLDO5, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO5_ON_VSEL,
RK806_POWER_EN5, rk806_ldo_voltage_ranges, 1,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
RK806_REGULATOR("pldo-reg6", "vcca", RK806_ID_PLDO6, rk806_ops_pldo,
RK806_LDO_SEL_CNT, RK806_PLDO6_ON_VSEL,
RK806_POWER_EN4, rk806_ldo_voltage_ranges, 0,
0xEA, 0x38, rk806_ramp_delay_table_ldo),
};
static const struct regulator_desc rk808_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
.of_match = of_match_ptr("DCDC_REG1"),
.regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC1,
.ops = &rk808_buck1_2_ops,
.type = REGULATOR_VOLTAGE,
.min_uV = 712500,
.uV_step = 12500,
.n_voltages = 64,
.vsel_reg = RK808_BUCK1_ON_VSEL_REG,
.vsel_mask = RK808_BUCK_VSEL_MASK,
.enable_reg = RK808_DCDC_EN_REG,
.enable_mask = BIT(0),
.ramp_reg = RK808_BUCK1_CONFIG_REG,
.ramp_mask = RK808_RAMP_RATE_MASK,
.ramp_delay_table = rk808_buck1_2_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk808_buck1_2_ramp_table),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
.of_match = of_match_ptr("DCDC_REG2"),
.regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC2,
.ops = &rk808_buck1_2_ops,
.type = REGULATOR_VOLTAGE,
.min_uV = 712500,
.uV_step = 12500,
.n_voltages = 64,
.vsel_reg = RK808_BUCK2_ON_VSEL_REG,
.vsel_mask = RK808_BUCK_VSEL_MASK,
.enable_reg = RK808_DCDC_EN_REG,
.enable_mask = BIT(1),
.ramp_reg = RK808_BUCK2_CONFIG_REG,
.ramp_mask = RK808_RAMP_RATE_MASK,
.ramp_delay_table = rk808_buck1_2_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk808_buck1_2_ramp_table),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
.of_match = of_match_ptr("DCDC_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_DCDC3,
.ops = &rk808_switch_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.enable_reg = RK808_DCDC_EN_REG,
.enable_mask = BIT(2),
.owner = THIS_MODULE,
},
RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100,
RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK,
RK808_DCDC_EN_REG, BIT(3), 0),
RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(0), 400),
RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(1), 400),
{
.name = "LDO_REG3",
.supply_name = "vcc7",
.of_match = of_match_ptr("LDO_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK808_ID_LDO3,
.ops = &rk808_reg_ops_ranges,
.type = REGULATOR_VOLTAGE,
.n_voltages = 16,
.linear_ranges = rk808_ldo3_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
.vsel_reg = RK808_LDO3_ON_VSEL_REG,
.vsel_mask = RK808_BUCK4_VSEL_MASK,
.enable_reg = RK808_LDO_EN_REG,
.enable_mask = BIT(2),
.enable_time = 400,
.owner = THIS_MODULE,
},
RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100,
RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(3), 400),
RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100,
RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(4), 400),
RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100,
RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(5), 400),
RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(6), 400),
RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100,
RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
BIT(7), 400),
RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8",
RK808_DCDC_EN_REG, BIT(5)),
RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12",
RK808_DCDC_EN_REG, BIT(6)),
};
static const struct regulator_desc rk809_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
.of_match = of_match_ptr("DCDC_REG1"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC1,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK1_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC1),
.enable_val = ENABLE_MASK(RK817_ID_DCDC1),
.disable_val = DISABLE_VAL(RK817_ID_DCDC1),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC1),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
.of_match = of_match_ptr("DCDC_REG2"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC2,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK2_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC2),
.enable_val = ENABLE_MASK(RK817_ID_DCDC2),
.disable_val = DISABLE_VAL(RK817_ID_DCDC2),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC2),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
.of_match = of_match_ptr("DCDC_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC3,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK3_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC3),
.enable_val = ENABLE_MASK(RK817_ID_DCDC3),
.disable_val = DISABLE_VAL(RK817_ID_DCDC3),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC3),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG4",
.supply_name = "vcc4",
.of_match = of_match_ptr("DCDC_REG4"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC4,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK3_SEL_CNT + 1,
.linear_ranges = rk817_buck3_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck3_voltage_ranges),
.vsel_reg = RK817_BUCK4_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC4),
.enable_val = ENABLE_MASK(RK817_ID_DCDC4),
.disable_val = DISABLE_VAL(RK817_ID_DCDC4),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC4),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
},
{
.name = "DCDC_REG5",
.supply_name = "vcc9",
.of_match = of_match_ptr("DCDC_REG5"),
.regulators_node = of_match_ptr("regulators"),
.id = RK809_ID_DCDC5,
.ops = &rk809_buck5_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK809_BUCK5_SEL_CNT,
.linear_ranges = rk809_buck5_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk809_buck5_voltage_ranges),
.vsel_reg = RK809_BUCK5_CONFIG(0),
.vsel_mask = RK809_BUCK5_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(3),
.enable_mask = ENABLE_MASK(1),
.enable_val = ENABLE_MASK(1),
.disable_val = DISABLE_VAL(1),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
},
RK817_DESC(RK817_ID_LDO1, "LDO_REG1", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(0), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_DESC(RK817_ID_LDO2, "LDO_REG2", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(1), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(1),
DISABLE_VAL(1), 400),
RK817_DESC(RK817_ID_LDO3, "LDO_REG3", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(2), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(2),
DISABLE_VAL(2), 400),
RK817_DESC(RK817_ID_LDO4, "LDO_REG4", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(3), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(3),
DISABLE_VAL(3), 400),
RK817_DESC(RK817_ID_LDO5, "LDO_REG5", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(4), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_DESC(RK817_ID_LDO6, "LDO_REG6", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(5), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(1),
DISABLE_VAL(1), 400),
RK817_DESC(RK817_ID_LDO7, "LDO_REG7", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(6), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(2),
DISABLE_VAL(2), 400),
RK817_DESC(RK817_ID_LDO8, "LDO_REG8", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(7), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(3),
DISABLE_VAL(3), 400),
RK817_DESC(RK817_ID_LDO9, "LDO_REG9", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(8), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(3), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_DESC_SWITCH(RK809_ID_SW1, "SWITCH_REG1", "vcc9",
RK817_POWER_EN_REG(3), ENABLE_MASK(2),
DISABLE_VAL(2)),
RK817_DESC_SWITCH(RK809_ID_SW2, "SWITCH_REG2", "vcc8",
RK817_POWER_EN_REG(3), ENABLE_MASK(3),
DISABLE_VAL(3)),
};
static const struct regulator_desc rk817_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
.of_match = of_match_ptr("DCDC_REG1"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC1,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK1_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC1),
.enable_val = ENABLE_MASK(RK817_ID_DCDC1),
.disable_val = DISABLE_VAL(RK817_ID_DCDC1),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC1),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
.of_match = of_match_ptr("DCDC_REG2"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC2,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK2_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC2),
.enable_val = ENABLE_MASK(RK817_ID_DCDC2),
.disable_val = DISABLE_VAL(RK817_ID_DCDC2),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC2),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
.of_match = of_match_ptr("DCDC_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC3,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK1_SEL_CNT + 1,
.linear_ranges = rk817_buck1_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck1_voltage_ranges),
.vsel_reg = RK817_BUCK3_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC3),
.enable_val = ENABLE_MASK(RK817_ID_DCDC3),
.disable_val = DISABLE_VAL(RK817_ID_DCDC3),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC3),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG4",
.supply_name = "vcc4",
.of_match = of_match_ptr("DCDC_REG4"),
.regulators_node = of_match_ptr("regulators"),
.id = RK817_ID_DCDC4,
.ops = &rk817_buck_ops_range,
.type = REGULATOR_VOLTAGE,
.n_voltages = RK817_BUCK3_SEL_CNT + 1,
.linear_ranges = rk817_buck3_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk817_buck3_voltage_ranges),
.vsel_reg = RK817_BUCK4_ON_VSEL_REG,
.vsel_mask = RK817_BUCK_VSEL_MASK,
.enable_reg = RK817_POWER_EN_REG(0),
.enable_mask = ENABLE_MASK(RK817_ID_DCDC4),
.enable_val = ENABLE_MASK(RK817_ID_DCDC4),
.disable_val = DISABLE_VAL(RK817_ID_DCDC4),
.ramp_reg = RK817_BUCK_CONFIG_REG(RK817_ID_DCDC4),
.ramp_mask = RK817_RAMP_RATE_MASK,
.ramp_delay_table = rk817_buck1_4_ramp_table,
.n_ramp_values = ARRAY_SIZE(rk817_buck1_4_ramp_table),
.of_map_mode = rk8xx_regulator_of_map_mode,
.owner = THIS_MODULE,
},
RK817_DESC(RK817_ID_LDO1, "LDO_REG1", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(0), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_DESC(RK817_ID_LDO2, "LDO_REG2", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(1), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(1),
DISABLE_VAL(1), 400),
RK817_DESC(RK817_ID_LDO3, "LDO_REG3", "vcc5", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(2), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(2),
DISABLE_VAL(2), 400),
RK817_DESC(RK817_ID_LDO4, "LDO_REG4", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(3), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(1), ENABLE_MASK(3),
DISABLE_VAL(3), 400),
RK817_DESC(RK817_ID_LDO5, "LDO_REG5", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(4), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_DESC(RK817_ID_LDO6, "LDO_REG6", "vcc6", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(5), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(1),
DISABLE_VAL(1), 400),
RK817_DESC(RK817_ID_LDO7, "LDO_REG7", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(6), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(2),
DISABLE_VAL(2), 400),
RK817_DESC(RK817_ID_LDO8, "LDO_REG8", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(7), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(2), ENABLE_MASK(3),
DISABLE_VAL(3), 400),
RK817_DESC(RK817_ID_LDO9, "LDO_REG9", "vcc7", 600, 3400, 25,
RK817_LDO_ON_VSEL_REG(8), RK817_LDO_VSEL_MASK,
RK817_POWER_EN_REG(3), ENABLE_MASK(0),
DISABLE_VAL(0), 400),
RK817_BOOST_DESC(RK817_ID_BOOST, "BOOST", "vcc8", 4700, 5400, 100,
RK817_BOOST_OTG_CFG, RK817_BOOST_VSEL_MASK,
RK817_POWER_EN_REG(3), ENABLE_MASK(1), ENABLE_MASK(1),
DISABLE_VAL(1), 400, 3500 - 5400),
RK817_DESC_SWITCH(RK817_ID_BOOST_OTG_SW, "OTG_SWITCH", "vcc9",
RK817_POWER_EN_REG(3), ENABLE_MASK(2),
DISABLE_VAL(2)),
};
static const struct regulator_desc rk818_reg[] = {
{
.name = "DCDC_REG1",
.supply_name = "vcc1",
.of_match = of_match_ptr("DCDC_REG1"),
.regulators_node = of_match_ptr("regulators"),
.id = RK818_ID_DCDC1,
.ops = &rk808_reg_ops,
.type = REGULATOR_VOLTAGE,
.min_uV = 712500,
.uV_step = 12500,
.n_voltages = 64,
.vsel_reg = RK818_BUCK1_ON_VSEL_REG,
.vsel_mask = RK818_BUCK_VSEL_MASK,
.enable_reg = RK818_DCDC_EN_REG,
.enable_mask = BIT(0),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG2",
.supply_name = "vcc2",
.of_match = of_match_ptr("DCDC_REG2"),
.regulators_node = of_match_ptr("regulators"),
.id = RK818_ID_DCDC2,
.ops = &rk808_reg_ops,
.type = REGULATOR_VOLTAGE,
.min_uV = 712500,
.uV_step = 12500,
.n_voltages = 64,
.vsel_reg = RK818_BUCK2_ON_VSEL_REG,
.vsel_mask = RK818_BUCK_VSEL_MASK,
.enable_reg = RK818_DCDC_EN_REG,
.enable_mask = BIT(1),
.owner = THIS_MODULE,
}, {
.name = "DCDC_REG3",
.supply_name = "vcc3",
.of_match = of_match_ptr("DCDC_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK818_ID_DCDC3,
.ops = &rk808_switch_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.enable_reg = RK818_DCDC_EN_REG,
.enable_mask = BIT(2),
.owner = THIS_MODULE,
},
RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100,
RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
RK818_DCDC_EN_REG, BIT(3), 0),
RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100,
RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK,
RK818_DCDC_EN_REG, BIT(4), 0),
RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(0), 400),
RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(1), 400),
{
.name = "LDO_REG3",
.supply_name = "vcc7",
.of_match = of_match_ptr("LDO_REG3"),
.regulators_node = of_match_ptr("regulators"),
.id = RK818_ID_LDO3,
.ops = &rk808_reg_ops_ranges,
.type = REGULATOR_VOLTAGE,
.n_voltages = 16,
.linear_ranges = rk808_ldo3_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
.vsel_reg = RK818_LDO3_ON_VSEL_REG,
.vsel_mask = RK818_LDO3_ON_VSEL_MASK,
.enable_reg = RK818_LDO_EN_REG,
.enable_mask = BIT(2),
.enable_time = 400,
.owner = THIS_MODULE,
},
RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100,
RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(3), 400),
RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100,
RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(4), 400),
RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100,
RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(5), 400),
RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(6), 400),
RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100,
RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
BIT(7), 400),
RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100,
RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
RK818_DCDC_EN_REG, BIT(5), 400),
RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9",
RK818_DCDC_EN_REG, BIT(6)),
RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v",
RK818_H5V_EN_REG, BIT(0)),
RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb",
RK818_DCDC_EN_REG, BIT(7)),
};
static int rk808_regulator_dt_parse_pdata(struct device *dev,
struct regmap *map,
struct rk808_regulator_data *pdata)
{
struct device_node *np;
int tmp, ret = 0, i;
np = of_get_child_by_name(dev->of_node, "regulators");
if (!np)
return -ENXIO;
for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) {
pdata->dvs_gpio[i] =
devm_gpiod_get_index_optional(dev, "dvs", i,
GPIOD_OUT_LOW);
if (IS_ERR(pdata->dvs_gpio[i])) {
ret = PTR_ERR(pdata->dvs_gpio[i]);
dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret);
goto dt_parse_end;
}
if (!pdata->dvs_gpio[i]) {
dev_info(dev, "there is no dvs%d gpio\n", i);
continue;
}
tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL;
ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp,
gpiod_is_active_low(pdata->dvs_gpio[i]) ?
0 : tmp);
}
dt_parse_end:
of_node_put(np);
return ret;
}
static int rk808_regulator_probe(struct platform_device *pdev)
{
struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rk808_rdev;
struct rk808_regulator_data *pdata;
const struct regulator_desc *regulators;
struct regmap *regmap;
int ret, i, nregulators;
pdev->dev.of_node = pdev->dev.parent->of_node;
pdev->dev.of_node_reused = true;
regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!regmap)
return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
ret = rk808_regulator_dt_parse_pdata(&pdev->dev, regmap, pdata);
if (ret < 0)
return ret;
platform_set_drvdata(pdev, pdata);
switch (rk808->variant) {
case RK805_ID:
regulators = rk805_reg;
nregulators = RK805_NUM_REGULATORS;
break;
case RK806_ID:
regulators = rk806_reg;
nregulators = ARRAY_SIZE(rk806_reg);
break;
case RK808_ID:
regulators = rk808_reg;
nregulators = RK808_NUM_REGULATORS;
break;
case RK809_ID:
regulators = rk809_reg;
nregulators = RK809_NUM_REGULATORS;
break;
case RK817_ID:
regulators = rk817_reg;
nregulators = RK817_NUM_REGULATORS;
break;
case RK818_ID:
regulators = rk818_reg;
nregulators = RK818_NUM_REGULATORS;
break;
default:
dev_err(&pdev->dev, "unsupported RK8XX ID %lu\n",
rk808->variant);
return -EINVAL;
}
config.dev = &pdev->dev;
config.driver_data = pdata;
config.regmap = regmap;
/* Instantiate the regulators */
for (i = 0; i < nregulators; i++) {
rk808_rdev = devm_regulator_register(&pdev->dev,
®ulators[i], &config);
if (IS_ERR(rk808_rdev))
return dev_err_probe(&pdev->dev, PTR_ERR(rk808_rdev),
"failed to register %d regulator\n", i);
}
return 0;
}
static struct platform_driver rk808_regulator_driver = {
.probe = rk808_regulator_probe,
.driver = {
.name = "rk808-regulator",
.probe_type = PROBE_FORCE_SYNCHRONOUS,
},
};
module_platform_driver(rk808_regulator_driver);
MODULE_DESCRIPTION("regulator driver for the RK805/RK808/RK818 series PMICs");
MODULE_AUTHOR("Tony xie <[email protected]>");
MODULE_AUTHOR("Chris Zhong <[email protected]>");
MODULE_AUTHOR("Zhang Qing <[email protected]>");
MODULE_AUTHOR("Wadim Egorov <[email protected]>");
MODULE_AUTHOR("Xu Shengfei <[email protected]>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:rk808-regulator");
| linux-master | drivers/regulator/rk808-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// pv88060-regulator.c - Regulator device driver for PV88060
// Copyright (C) 2015 Powerventure Semiconductor Ltd.
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/regulator/of_regulator.h>
#include "pv88060-regulator.h"
#define PV88060_MAX_REGULATORS 14
/* PV88060 REGULATOR IDs */
enum {
/* BUCKs */
PV88060_ID_BUCK1,
/* LDOs */
PV88060_ID_LDO1,
PV88060_ID_LDO2,
PV88060_ID_LDO3,
PV88060_ID_LDO4,
PV88060_ID_LDO5,
PV88060_ID_LDO6,
PV88060_ID_LDO7,
/* SWTs */
PV88060_ID_SW1,
PV88060_ID_SW2,
PV88060_ID_SW3,
PV88060_ID_SW4,
PV88060_ID_SW5,
PV88060_ID_SW6,
};
struct pv88060_regulator {
struct regulator_desc desc;
unsigned int conf; /* buck configuration register */
};
struct pv88060 {
struct device *dev;
struct regmap *regmap;
struct regulator_dev *rdev[PV88060_MAX_REGULATORS];
};
static const struct regmap_config pv88060_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
/* Current limits array (in uA) for BUCK1
* Entry indexes corresponds to register values.
*/
static const unsigned int pv88060_buck1_limits[] = {
1496000, 2393000, 3291000, 4189000
};
static unsigned int pv88060_buck_get_mode(struct regulator_dev *rdev)
{
struct pv88060_regulator *info = rdev_get_drvdata(rdev);
unsigned int data;
int ret, mode = 0;
ret = regmap_read(rdev->regmap, info->conf, &data);
if (ret < 0)
return ret;
switch (data & PV88060_BUCK_MODE_MASK) {
case PV88060_BUCK_MODE_SYNC:
mode = REGULATOR_MODE_FAST;
break;
case PV88060_BUCK_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case PV88060_BUCK_MODE_SLEEP:
mode = REGULATOR_MODE_STANDBY;
break;
}
return mode;
}
static int pv88060_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct pv88060_regulator *info = rdev_get_drvdata(rdev);
int val = 0;
switch (mode) {
case REGULATOR_MODE_FAST:
val = PV88060_BUCK_MODE_SYNC;
break;
case REGULATOR_MODE_NORMAL:
val = PV88060_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = PV88060_BUCK_MODE_SLEEP;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, info->conf,
PV88060_BUCK_MODE_MASK, val);
}
static const struct regulator_ops pv88060_buck_ops = {
.get_mode = pv88060_buck_get_mode,
.set_mode = pv88060_buck_set_mode,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_current_limit = regulator_set_current_limit_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
};
static const struct regulator_ops pv88060_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_ops pv88060_sw_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
#define PV88060_BUCK(chip, regl_name, min, step, max, limits_array) \
{\
.desc = {\
.id = chip##_ID_##regl_name,\
.name = __stringify(chip##_##regl_name),\
.of_match = of_match_ptr(#regl_name),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.owner = THIS_MODULE,\
.ops = &pv88060_buck_ops,\
.min_uV = min,\
.uV_step = step,\
.n_voltages = ((max) - (min))/(step) + 1,\
.enable_reg = PV88060_REG_##regl_name##_CONF0,\
.enable_mask = PV88060_BUCK_EN, \
.vsel_reg = PV88060_REG_##regl_name##_CONF0,\
.vsel_mask = PV88060_VBUCK_MASK,\
.curr_table = limits_array,\
.n_current_limits = ARRAY_SIZE(limits_array),\
.csel_reg = PV88060_REG_##regl_name##_CONF1,\
.csel_mask = PV88060_BUCK_ILIM_MASK,\
},\
.conf = PV88060_REG_##regl_name##_CONF1,\
}
#define PV88060_LDO(chip, regl_name, min, step, max) \
{\
.desc = {\
.id = chip##_ID_##regl_name,\
.name = __stringify(chip##_##regl_name),\
.of_match = of_match_ptr(#regl_name),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.owner = THIS_MODULE,\
.ops = &pv88060_ldo_ops,\
.min_uV = min, \
.uV_step = step, \
.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
.enable_reg = PV88060_REG_##regl_name##_CONF, \
.enable_mask = PV88060_LDO_EN, \
.vsel_reg = PV88060_REG_##regl_name##_CONF, \
.vsel_mask = PV88060_VLDO_MASK, \
},\
}
#define PV88060_SW(chip, regl_name, max) \
{\
.desc = {\
.id = chip##_ID_##regl_name,\
.name = __stringify(chip##_##regl_name),\
.of_match = of_match_ptr(#regl_name),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.owner = THIS_MODULE,\
.ops = &pv88060_sw_ops,\
.fixed_uV = max,\
.n_voltages = 1,\
.enable_reg = PV88060_REG_##regl_name##_CONF,\
.enable_mask = PV88060_SW_EN,\
},\
}
static const struct pv88060_regulator pv88060_regulator_info[] = {
PV88060_BUCK(PV88060, BUCK1, 2800000, 12500, 4387500,
pv88060_buck1_limits),
PV88060_LDO(PV88060, LDO1, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO2, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO3, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO4, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO5, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO6, 1200000, 50000, 3350000),
PV88060_LDO(PV88060, LDO7, 1200000, 50000, 3350000),
PV88060_SW(PV88060, SW1, 5000000),
PV88060_SW(PV88060, SW2, 5000000),
PV88060_SW(PV88060, SW3, 5000000),
PV88060_SW(PV88060, SW4, 5000000),
PV88060_SW(PV88060, SW5, 5000000),
PV88060_SW(PV88060, SW6, 5000000),
};
static irqreturn_t pv88060_irq_handler(int irq, void *data)
{
struct pv88060 *chip = data;
int i, reg_val, err, ret = IRQ_NONE;
err = regmap_read(chip->regmap, PV88060_REG_EVENT_A, ®_val);
if (err < 0)
goto error_i2c;
if (reg_val & PV88060_E_VDD_FLT) {
for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_UNDER_VOLTAGE,
NULL);
}
err = regmap_write(chip->regmap, PV88060_REG_EVENT_A,
PV88060_E_VDD_FLT);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
if (reg_val & PV88060_E_OVER_TEMP) {
for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_OVER_TEMP,
NULL);
}
err = regmap_write(chip->regmap, PV88060_REG_EVENT_A,
PV88060_E_OVER_TEMP);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
return ret;
error_i2c:
dev_err(chip->dev, "I2C error : %d\n", err);
return IRQ_NONE;
}
/*
* I2C driver interface functions
*/
static int pv88060_i2c_probe(struct i2c_client *i2c)
{
struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
struct pv88060 *chip;
struct regulator_config config = { };
int error, i, ret = 0;
chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88060), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->dev = &i2c->dev;
chip->regmap = devm_regmap_init_i2c(i2c, &pv88060_regmap_config);
if (IS_ERR(chip->regmap)) {
error = PTR_ERR(chip->regmap);
dev_err(chip->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
i2c_set_clientdata(i2c, chip);
if (i2c->irq != 0) {
ret = regmap_write(chip->regmap, PV88060_REG_MASK_A, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask A reg: %d\n", ret);
return ret;
}
ret = regmap_write(chip->regmap, PV88060_REG_MASK_B, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask B reg: %d\n", ret);
return ret;
}
ret = regmap_write(chip->regmap, PV88060_REG_MASK_C, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask C reg: %d\n", ret);
return ret;
}
ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
pv88060_irq_handler,
IRQF_TRIGGER_LOW|IRQF_ONESHOT,
"pv88060", chip);
if (ret != 0) {
dev_err(chip->dev, "Failed to request IRQ: %d\n",
i2c->irq);
return ret;
}
ret = regmap_update_bits(chip->regmap, PV88060_REG_MASK_A,
PV88060_M_VDD_FLT | PV88060_M_OVER_TEMP, 0);
if (ret < 0) {
dev_err(chip->dev,
"Failed to update mask reg: %d\n", ret);
return ret;
}
} else {
dev_warn(chip->dev, "No IRQ configured\n");
}
config.dev = chip->dev;
config.regmap = chip->regmap;
for (i = 0; i < PV88060_MAX_REGULATORS; i++) {
if (init_data)
config.init_data = &init_data[i];
config.driver_data = (void *)&pv88060_regulator_info[i];
chip->rdev[i] = devm_regulator_register(chip->dev,
&pv88060_regulator_info[i].desc, &config);
if (IS_ERR(chip->rdev[i])) {
dev_err(chip->dev,
"Failed to register PV88060 regulator\n");
return PTR_ERR(chip->rdev[i]);
}
}
return 0;
}
static const struct i2c_device_id pv88060_i2c_id[] = {
{"pv88060", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, pv88060_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id pv88060_dt_ids[] = {
{ .compatible = "pvs,pv88060", .data = &pv88060_i2c_id[0] },
{},
};
MODULE_DEVICE_TABLE(of, pv88060_dt_ids);
#endif
static struct i2c_driver pv88060_regulator_driver = {
.driver = {
.name = "pv88060",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(pv88060_dt_ids),
},
.probe = pv88060_i2c_probe,
.id_table = pv88060_i2c_id,
};
module_i2c_driver(pv88060_regulator_driver);
MODULE_AUTHOR("James Ban <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88060");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/pv88060-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* isl6271a-regulator.c
*
* Support for Intersil ISL6271A voltage regulator
*
* Copyright (C) 2010 Marek Vasut <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#define ISL6271A_VOLTAGE_MIN 850000
#define ISL6271A_VOLTAGE_MAX 1600000
#define ISL6271A_VOLTAGE_STEP 50000
/* PMIC details */
struct isl_pmic {
struct i2c_client *client;
struct mutex mtx;
};
static int isl6271a_get_voltage_sel(struct regulator_dev *dev)
{
struct isl_pmic *pmic = rdev_get_drvdata(dev);
int idx;
mutex_lock(&pmic->mtx);
idx = i2c_smbus_read_byte(pmic->client);
if (idx < 0)
dev_err(&pmic->client->dev, "Error getting voltage\n");
mutex_unlock(&pmic->mtx);
return idx;
}
static int isl6271a_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct isl_pmic *pmic = rdev_get_drvdata(dev);
int err;
mutex_lock(&pmic->mtx);
err = i2c_smbus_write_byte(pmic->client, selector);
if (err < 0)
dev_err(&pmic->client->dev, "Error setting voltage\n");
mutex_unlock(&pmic->mtx);
return err;
}
static const struct regulator_ops isl_core_ops = {
.get_voltage_sel = isl6271a_get_voltage_sel,
.set_voltage_sel = isl6271a_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_ops isl_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_desc isl_rd[] = {
{
.name = "Core Buck",
.id = 0,
.n_voltages = 16,
.ops = &isl_core_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = ISL6271A_VOLTAGE_MIN,
.uV_step = ISL6271A_VOLTAGE_STEP,
}, {
.name = "LDO1",
.id = 1,
.n_voltages = 1,
.ops = &isl_fixed_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1100000,
}, {
.name = "LDO2",
.id = 2,
.n_voltages = 1,
.ops = &isl_fixed_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1300000,
},
};
static int isl6271a_probe(struct i2c_client *i2c)
{
const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
struct regulator_dev *rdev;
struct regulator_config config = { };
struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
struct isl_pmic *pmic;
int i;
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
pmic = devm_kzalloc(&i2c->dev, sizeof(struct isl_pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
pmic->client = i2c;
mutex_init(&pmic->mtx);
for (i = 0; i < 3; i++) {
config.dev = &i2c->dev;
if (i == 0)
config.init_data = init_data;
else
config.init_data = NULL;
config.driver_data = pmic;
rdev = devm_regulator_register(&i2c->dev, &isl_rd[i], &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "failed to register %s\n", id->name);
return PTR_ERR(rdev);
}
}
i2c_set_clientdata(i2c, pmic);
return 0;
}
static const struct i2c_device_id isl6271a_id[] = {
{.name = "isl6271a", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, isl6271a_id);
static struct i2c_driver isl6271a_i2c_driver = {
.driver = {
.name = "isl6271a",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = isl6271a_probe,
.id_table = isl6271a_id,
};
static int __init isl6271a_init(void)
{
return i2c_add_driver(&isl6271a_i2c_driver);
}
static void __exit isl6271a_cleanup(void)
{
i2c_del_driver(&isl6271a_i2c_driver);
}
subsys_initcall(isl6271a_init);
module_exit(isl6271a_cleanup);
MODULE_AUTHOR("Marek Vasut <[email protected]>");
MODULE_DESCRIPTION("Intersil ISL6271A voltage regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/isl6271a-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2021 MediaTek Inc.
#include <linux/platform_device.h>
#include <linux/mfd/mt6359/registers.h>
#include <linux/mfd/mt6359p/registers.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6359-regulator.h>
#include <linux/regulator/of_regulator.h>
#define MT6359_BUCK_MODE_AUTO 0
#define MT6359_BUCK_MODE_FORCE_PWM 1
#define MT6359_BUCK_MODE_NORMAL 0
#define MT6359_BUCK_MODE_LP 2
/*
* MT6359 regulators' information
*
* @desc: standard fields of regulator description.
* @status_reg: for query status of regulators.
* @qi: Mask for query enable signal status of regulators.
* @modeset_reg: for operating AUTO/PWM mode register.
* @modeset_mask: MASK for operating modeset register.
*/
struct mt6359_regulator_info {
struct regulator_desc desc;
u32 status_reg;
u32 qi;
u32 modeset_reg;
u32 modeset_mask;
u32 lp_mode_reg;
u32 lp_mode_mask;
};
#define MT6359_BUCK(match, _name, min, max, step, \
_enable_reg, _status_reg, \
_vsel_reg, _vsel_mask, \
_lp_mode_reg, _lp_mode_shift, \
_modeset_reg, _modeset_shift) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_linear_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.uV_step = (step), \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
.of_map_mode = mt6359_map_mode, \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
.lp_mode_reg = _lp_mode_reg, \
.lp_mode_mask = BIT(_lp_mode_shift), \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
}
#define MT6359_LDO_LINEAR(match, _name, min, max, step, \
_enable_reg, _status_reg, _vsel_reg, _vsel_mask) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_linear_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.uV_step = (step), \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}
#define MT6359_LDO(match, _name, _volt_table, \
_enable_reg, _enable_mask, _status_reg, \
_vsel_reg, _vsel_mask, _en_delay) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(_volt_table), \
.volt_table = _volt_table, \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(_enable_mask), \
.enable_time = _en_delay, \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}
#define MT6359_REG_FIXED(match, _name, _enable_reg, \
_status_reg, _fixed_volt) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
.fixed_uV = (_fixed_volt), \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}
#define MT6359P_LDO1(match, _name, _ops, _volt_table, \
_enable_reg, _enable_mask, _status_reg, \
_vsel_reg, _vsel_mask) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(_volt_table), \
.volt_table = _volt_table, \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(_enable_mask), \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}
static const unsigned int vsim1_voltages[] = {
0, 0, 0, 1700000, 1800000, 0, 0, 0, 2700000, 0, 0, 3000000, 3100000,
};
static const unsigned int vibr_voltages[] = {
1200000, 1300000, 1500000, 0, 1800000, 2000000, 0, 0, 2700000, 2800000,
0, 3000000, 0, 3300000,
};
static const unsigned int vrf12_voltages[] = {
0, 0, 1100000, 1200000, 1300000,
};
static const unsigned int volt18_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1700000, 1800000, 1900000,
};
static const unsigned int vcn13_voltages[] = {
900000, 1000000, 0, 1200000, 1300000,
};
static const unsigned int vcn33_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 2800000, 0, 0, 0, 3300000, 3400000, 3500000,
};
static const unsigned int vefuse_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1700000, 1800000, 1900000, 2000000,
};
static const unsigned int vxo22_voltages[] = {
1800000, 0, 0, 0, 2200000,
};
static const unsigned int vrfck_voltages[] = {
0, 0, 1500000, 0, 0, 0, 0, 1600000, 0, 0, 0, 0, 1700000,
};
static const unsigned int vrfck_voltages_1[] = {
1240000, 1600000,
};
static const unsigned int vio28_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 2800000, 2900000, 3000000, 3100000, 3300000,
};
static const unsigned int vemc_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2900000, 3000000, 0, 3300000,
};
static const unsigned int vemc_voltages_1[] = {
0, 0, 0, 0, 0, 0, 0, 0, 2500000, 2800000, 2900000, 3000000, 3100000,
3300000,
};
static const unsigned int va12_voltages[] = {
0, 0, 0, 0, 0, 0, 1200000, 1300000,
};
static const unsigned int va09_voltages[] = {
0, 0, 800000, 900000, 0, 0, 1200000,
};
static const unsigned int vrf18_voltages[] = {
0, 0, 0, 0, 0, 1700000, 1800000, 1810000,
};
static const unsigned int vbbck_voltages[] = {
0, 0, 0, 0, 1100000, 0, 0, 0, 1150000, 0, 0, 0, 1200000,
};
static const unsigned int vsim2_voltages[] = {
0, 0, 0, 1700000, 1800000, 0, 0, 0, 2700000, 0, 0, 3000000, 3100000,
};
static inline unsigned int mt6359_map_mode(unsigned int mode)
{
switch (mode) {
case MT6359_BUCK_MODE_NORMAL:
return REGULATOR_MODE_NORMAL;
case MT6359_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
case MT6359_BUCK_MODE_LP:
return REGULATOR_MODE_IDLE;
default:
return REGULATOR_MODE_INVALID;
}
}
static int mt6359_get_status(struct regulator_dev *rdev)
{
int ret;
u32 regval;
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
ret = regmap_read(rdev->regmap, info->status_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}
if (regval & info->qi)
return REGULATOR_STATUS_ON;
else
return REGULATOR_STATUS_OFF;
}
static unsigned int mt6359_regulator_get_mode(struct regulator_dev *rdev)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret, regval;
ret = regmap_read(rdev->regmap, info->modeset_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6359 buck mode: %d\n", ret);
return ret;
}
regval &= info->modeset_mask;
regval >>= ffs(info->modeset_mask) - 1;
if (regval == MT6359_BUCK_MODE_FORCE_PWM)
return REGULATOR_MODE_FAST;
ret = regmap_read(rdev->regmap, info->lp_mode_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6359 buck lp mode: %d\n", ret);
return ret;
}
if (regval & info->lp_mode_mask)
return REGULATOR_MODE_IDLE;
else
return REGULATOR_MODE_NORMAL;
}
static int mt6359_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret = 0, val;
int curr_mode;
curr_mode = mt6359_regulator_get_mode(rdev);
switch (mode) {
case REGULATOR_MODE_FAST:
val = MT6359_BUCK_MODE_FORCE_PWM;
val <<= ffs(info->modeset_mask) - 1;
ret = regmap_update_bits(rdev->regmap,
info->modeset_reg,
info->modeset_mask,
val);
break;
case REGULATOR_MODE_NORMAL:
if (curr_mode == REGULATOR_MODE_FAST) {
val = MT6359_BUCK_MODE_AUTO;
val <<= ffs(info->modeset_mask) - 1;
ret = regmap_update_bits(rdev->regmap,
info->modeset_reg,
info->modeset_mask,
val);
} else if (curr_mode == REGULATOR_MODE_IDLE) {
val = MT6359_BUCK_MODE_NORMAL;
val <<= ffs(info->lp_mode_mask) - 1;
ret = regmap_update_bits(rdev->regmap,
info->lp_mode_reg,
info->lp_mode_mask,
val);
udelay(100);
}
break;
case REGULATOR_MODE_IDLE:
val = MT6359_BUCK_MODE_LP >> 1;
val <<= ffs(info->lp_mode_mask) - 1;
ret = regmap_update_bits(rdev->regmap,
info->lp_mode_reg,
info->lp_mode_mask,
val);
break;
default:
return -EINVAL;
}
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to set mt6359 buck mode: %d\n", ret);
}
return ret;
}
static int mt6359p_vemc_set_voltage_sel(struct regulator_dev *rdev,
u32 sel)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret;
u32 val = 0;
sel <<= ffs(info->desc.vsel_mask) - 1;
ret = regmap_write(rdev->regmap, MT6359P_TMA_KEY_ADDR, TMA_KEY);
if (ret)
return ret;
ret = regmap_read(rdev->regmap, MT6359P_VM_MODE_ADDR, &val);
if (ret)
return ret;
switch (val) {
case 0:
/* If HW trapping is 0, use VEMC_VOSEL_0 */
ret = regmap_update_bits(rdev->regmap,
info->desc.vsel_reg,
info->desc.vsel_mask, sel);
break;
case 1:
/* If HW trapping is 1, use VEMC_VOSEL_1 */
ret = regmap_update_bits(rdev->regmap,
info->desc.vsel_reg + 0x2,
info->desc.vsel_mask, sel);
break;
default:
return -EINVAL;
}
if (ret)
return ret;
ret = regmap_write(rdev->regmap, MT6359P_TMA_KEY_ADDR, 0);
return ret;
}
static int mt6359p_vemc_get_voltage_sel(struct regulator_dev *rdev)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret;
u32 val = 0;
ret = regmap_read(rdev->regmap, MT6359P_VM_MODE_ADDR, &val);
if (ret)
return ret;
switch (val) {
case 0:
/* If HW trapping is 0, use VEMC_VOSEL_0 */
ret = regmap_read(rdev->regmap,
info->desc.vsel_reg, &val);
break;
case 1:
/* If HW trapping is 1, use VEMC_VOSEL_1 */
ret = regmap_read(rdev->regmap,
info->desc.vsel_reg + 0x2, &val);
break;
default:
return -EINVAL;
}
if (ret)
return ret;
val &= info->desc.vsel_mask;
val >>= ffs(info->desc.vsel_mask) - 1;
return val;
}
static const struct regulator_ops mt6359_volt_linear_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
.set_mode = mt6359_regulator_set_mode,
.get_mode = mt6359_regulator_get_mode,
};
static const struct regulator_ops mt6359_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
};
static const struct regulator_ops mt6359_volt_fixed_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
};
static const struct regulator_ops mt6359p_vemc_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = mt6359p_vemc_set_voltage_sel,
.get_voltage_sel = mt6359p_vemc_get_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
};
/* The array is indexed by id(MT6359_ID_XXX) */
static struct mt6359_regulator_info mt6359_regulators[] = {
MT6359_BUCK("buck_vs1", VS1, 800000, 2200000, 12500,
MT6359_RG_BUCK_VS1_EN_ADDR,
MT6359_DA_VS1_EN_ADDR, MT6359_RG_BUCK_VS1_VOSEL_ADDR,
MT6359_RG_BUCK_VS1_VOSEL_MASK <<
MT6359_RG_BUCK_VS1_VOSEL_SHIFT,
MT6359_RG_BUCK_VS1_LP_ADDR, MT6359_RG_BUCK_VS1_LP_SHIFT,
MT6359_RG_VS1_FPWM_ADDR, MT6359_RG_VS1_FPWM_SHIFT),
MT6359_BUCK("buck_vgpu11", VGPU11, 400000, 1193750, 6250,
MT6359_RG_BUCK_VGPU11_EN_ADDR,
MT6359_DA_VGPU11_EN_ADDR, MT6359_RG_BUCK_VGPU11_VOSEL_ADDR,
MT6359_RG_BUCK_VGPU11_VOSEL_MASK <<
MT6359_RG_BUCK_VGPU11_VOSEL_SHIFT,
MT6359_RG_BUCK_VGPU11_LP_ADDR,
MT6359_RG_BUCK_VGPU11_LP_SHIFT,
MT6359_RG_VGPU11_FCCM_ADDR, MT6359_RG_VGPU11_FCCM_SHIFT),
MT6359_BUCK("buck_vmodem", VMODEM, 400000, 1100000, 6250,
MT6359_RG_BUCK_VMODEM_EN_ADDR,
MT6359_DA_VMODEM_EN_ADDR, MT6359_RG_BUCK_VMODEM_VOSEL_ADDR,
MT6359_RG_BUCK_VMODEM_VOSEL_MASK <<
MT6359_RG_BUCK_VMODEM_VOSEL_SHIFT,
MT6359_RG_BUCK_VMODEM_LP_ADDR,
MT6359_RG_BUCK_VMODEM_LP_SHIFT,
MT6359_RG_VMODEM_FCCM_ADDR, MT6359_RG_VMODEM_FCCM_SHIFT),
MT6359_BUCK("buck_vpu", VPU, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPU_EN_ADDR,
MT6359_DA_VPU_EN_ADDR, MT6359_RG_BUCK_VPU_VOSEL_ADDR,
MT6359_RG_BUCK_VPU_VOSEL_MASK <<
MT6359_RG_BUCK_VPU_VOSEL_SHIFT,
MT6359_RG_BUCK_VPU_LP_ADDR, MT6359_RG_BUCK_VPU_LP_SHIFT,
MT6359_RG_VPU_FCCM_ADDR, MT6359_RG_VPU_FCCM_SHIFT),
MT6359_BUCK("buck_vcore", VCORE, 400000, 1193750, 6250,
MT6359_RG_BUCK_VCORE_EN_ADDR,
MT6359_DA_VCORE_EN_ADDR, MT6359_RG_BUCK_VCORE_VOSEL_ADDR,
MT6359_RG_BUCK_VCORE_VOSEL_MASK <<
MT6359_RG_BUCK_VCORE_VOSEL_SHIFT,
MT6359_RG_BUCK_VCORE_LP_ADDR, MT6359_RG_BUCK_VCORE_LP_SHIFT,
MT6359_RG_VCORE_FCCM_ADDR, MT6359_RG_VCORE_FCCM_SHIFT),
MT6359_BUCK("buck_vs2", VS2, 800000, 1600000, 12500,
MT6359_RG_BUCK_VS2_EN_ADDR,
MT6359_DA_VS2_EN_ADDR, MT6359_RG_BUCK_VS2_VOSEL_ADDR,
MT6359_RG_BUCK_VS2_VOSEL_MASK <<
MT6359_RG_BUCK_VS2_VOSEL_SHIFT,
MT6359_RG_BUCK_VS2_LP_ADDR, MT6359_RG_BUCK_VS2_LP_SHIFT,
MT6359_RG_VS2_FPWM_ADDR, MT6359_RG_VS2_FPWM_SHIFT),
MT6359_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
MT6359_RG_BUCK_VPA_EN_ADDR,
MT6359_DA_VPA_EN_ADDR, MT6359_RG_BUCK_VPA_VOSEL_ADDR,
MT6359_RG_BUCK_VPA_VOSEL_MASK <<
MT6359_RG_BUCK_VPA_VOSEL_SHIFT,
MT6359_RG_BUCK_VPA_LP_ADDR, MT6359_RG_BUCK_VPA_LP_SHIFT,
MT6359_RG_VPA_MODESET_ADDR, MT6359_RG_VPA_MODESET_SHIFT),
MT6359_BUCK("buck_vproc2", VPROC2, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPROC2_EN_ADDR,
MT6359_DA_VPROC2_EN_ADDR, MT6359_RG_BUCK_VPROC2_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC2_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC2_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC2_LP_ADDR,
MT6359_RG_BUCK_VPROC2_LP_SHIFT,
MT6359_RG_VPROC2_FCCM_ADDR, MT6359_RG_VPROC2_FCCM_SHIFT),
MT6359_BUCK("buck_vproc1", VPROC1, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPROC1_EN_ADDR,
MT6359_DA_VPROC1_EN_ADDR, MT6359_RG_BUCK_VPROC1_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC1_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC1_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC1_LP_ADDR,
MT6359_RG_BUCK_VPROC1_LP_SHIFT,
MT6359_RG_VPROC1_FCCM_ADDR, MT6359_RG_VPROC1_FCCM_SHIFT),
MT6359_BUCK("buck_vcore_sshub", VCORE_SSHUB, 400000, 1193750, 6250,
MT6359_RG_BUCK_VCORE_SSHUB_EN_ADDR,
MT6359_DA_VCORE_EN_ADDR,
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_ADDR,
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_MASK <<
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_SHIFT,
MT6359_RG_BUCK_VCORE_LP_ADDR, MT6359_RG_BUCK_VCORE_LP_SHIFT,
MT6359_RG_VCORE_FCCM_ADDR, MT6359_RG_VCORE_FCCM_SHIFT),
MT6359_REG_FIXED("ldo_vaud18", VAUD18, MT6359_RG_LDO_VAUD18_EN_ADDR,
MT6359_DA_VAUD18_B_EN_ADDR, 1800000),
MT6359_LDO("ldo_vsim1", VSIM1, vsim1_voltages,
MT6359_RG_LDO_VSIM1_EN_ADDR, MT6359_RG_LDO_VSIM1_EN_SHIFT,
MT6359_DA_VSIM1_B_EN_ADDR, MT6359_RG_VSIM1_VOSEL_ADDR,
MT6359_RG_VSIM1_VOSEL_MASK << MT6359_RG_VSIM1_VOSEL_SHIFT,
480),
MT6359_LDO("ldo_vibr", VIBR, vibr_voltages,
MT6359_RG_LDO_VIBR_EN_ADDR, MT6359_RG_LDO_VIBR_EN_SHIFT,
MT6359_DA_VIBR_B_EN_ADDR, MT6359_RG_VIBR_VOSEL_ADDR,
MT6359_RG_VIBR_VOSEL_MASK << MT6359_RG_VIBR_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vrf12", VRF12, vrf12_voltages,
MT6359_RG_LDO_VRF12_EN_ADDR, MT6359_RG_LDO_VRF12_EN_SHIFT,
MT6359_DA_VRF12_B_EN_ADDR, MT6359_RG_VRF12_VOSEL_ADDR,
MT6359_RG_VRF12_VOSEL_MASK << MT6359_RG_VRF12_VOSEL_SHIFT,
120),
MT6359_REG_FIXED("ldo_vusb", VUSB, MT6359_RG_LDO_VUSB_EN_0_ADDR,
MT6359_DA_VUSB_B_EN_ADDR, 3000000),
MT6359_LDO_LINEAR("ldo_vsram_proc2", VSRAM_PROC2, 500000, 1293750, 6250,
MT6359_RG_LDO_VSRAM_PROC2_EN_ADDR,
MT6359_DA_VSRAM_PROC2_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_SHIFT),
MT6359_LDO("ldo_vio18", VIO18, volt18_voltages,
MT6359_RG_LDO_VIO18_EN_ADDR, MT6359_RG_LDO_VIO18_EN_SHIFT,
MT6359_DA_VIO18_B_EN_ADDR, MT6359_RG_VIO18_VOSEL_ADDR,
MT6359_RG_VIO18_VOSEL_MASK << MT6359_RG_VIO18_VOSEL_SHIFT,
960),
MT6359_LDO("ldo_vcamio", VCAMIO, volt18_voltages,
MT6359_RG_LDO_VCAMIO_EN_ADDR, MT6359_RG_LDO_VCAMIO_EN_SHIFT,
MT6359_DA_VCAMIO_B_EN_ADDR, MT6359_RG_VCAMIO_VOSEL_ADDR,
MT6359_RG_VCAMIO_VOSEL_MASK << MT6359_RG_VCAMIO_VOSEL_SHIFT,
1290),
MT6359_REG_FIXED("ldo_vcn18", VCN18, MT6359_RG_LDO_VCN18_EN_ADDR,
MT6359_DA_VCN18_B_EN_ADDR, 1800000),
MT6359_REG_FIXED("ldo_vfe28", VFE28, MT6359_RG_LDO_VFE28_EN_ADDR,
MT6359_DA_VFE28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vcn13", VCN13, vcn13_voltages,
MT6359_RG_LDO_VCN13_EN_ADDR, MT6359_RG_LDO_VCN13_EN_SHIFT,
MT6359_DA_VCN13_B_EN_ADDR, MT6359_RG_VCN13_VOSEL_ADDR,
MT6359_RG_VCN13_VOSEL_MASK << MT6359_RG_VCN13_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vcn33_1_bt", VCN33_1_BT, vcn33_voltages,
MT6359_RG_LDO_VCN33_1_EN_0_ADDR,
MT6359_RG_LDO_VCN33_1_EN_0_SHIFT,
MT6359_DA_VCN33_1_B_EN_ADDR, MT6359_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_1_wifi", VCN33_1_WIFI, vcn33_voltages,
MT6359_RG_LDO_VCN33_1_EN_1_ADDR,
MT6359_RG_LDO_VCN33_1_EN_1_SHIFT,
MT6359_DA_VCN33_1_B_EN_ADDR, MT6359_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_REG_FIXED("ldo_vaux18", VAUX18, MT6359_RG_LDO_VAUX18_EN_ADDR,
MT6359_DA_VAUX18_B_EN_ADDR, 1800000),
MT6359_LDO_LINEAR("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750,
6250,
MT6359_RG_LDO_VSRAM_OTHERS_EN_ADDR,
MT6359_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_SHIFT),
MT6359_LDO("ldo_vefuse", VEFUSE, vefuse_voltages,
MT6359_RG_LDO_VEFUSE_EN_ADDR, MT6359_RG_LDO_VEFUSE_EN_SHIFT,
MT6359_DA_VEFUSE_B_EN_ADDR, MT6359_RG_VEFUSE_VOSEL_ADDR,
MT6359_RG_VEFUSE_VOSEL_MASK << MT6359_RG_VEFUSE_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vxo22", VXO22, vxo22_voltages,
MT6359_RG_LDO_VXO22_EN_ADDR, MT6359_RG_LDO_VXO22_EN_SHIFT,
MT6359_DA_VXO22_B_EN_ADDR, MT6359_RG_VXO22_VOSEL_ADDR,
MT6359_RG_VXO22_VOSEL_MASK << MT6359_RG_VXO22_VOSEL_SHIFT,
120),
MT6359_LDO("ldo_vrfck", VRFCK, vrfck_voltages,
MT6359_RG_LDO_VRFCK_EN_ADDR, MT6359_RG_LDO_VRFCK_EN_SHIFT,
MT6359_DA_VRFCK_B_EN_ADDR, MT6359_RG_VRFCK_VOSEL_ADDR,
MT6359_RG_VRFCK_VOSEL_MASK << MT6359_RG_VRFCK_VOSEL_SHIFT,
480),
MT6359_REG_FIXED("ldo_vbif28", VBIF28, MT6359_RG_LDO_VBIF28_EN_ADDR,
MT6359_DA_VBIF28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vio28", VIO28, vio28_voltages,
MT6359_RG_LDO_VIO28_EN_ADDR, MT6359_RG_LDO_VIO28_EN_SHIFT,
MT6359_DA_VIO28_B_EN_ADDR, MT6359_RG_VIO28_VOSEL_ADDR,
MT6359_RG_VIO28_VOSEL_MASK << MT6359_RG_VIO28_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vemc", VEMC, vemc_voltages,
MT6359_RG_LDO_VEMC_EN_ADDR, MT6359_RG_LDO_VEMC_EN_SHIFT,
MT6359_DA_VEMC_B_EN_ADDR, MT6359_RG_VEMC_VOSEL_ADDR,
MT6359_RG_VEMC_VOSEL_MASK << MT6359_RG_VEMC_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vcn33_2_bt", VCN33_2_BT, vcn33_voltages,
MT6359_RG_LDO_VCN33_2_EN_0_ADDR,
MT6359_RG_LDO_VCN33_2_EN_0_SHIFT,
MT6359_DA_VCN33_2_B_EN_ADDR, MT6359_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_2_wifi", VCN33_2_WIFI, vcn33_voltages,
MT6359_RG_LDO_VCN33_2_EN_1_ADDR,
MT6359_RG_LDO_VCN33_2_EN_1_SHIFT,
MT6359_DA_VCN33_2_B_EN_ADDR, MT6359_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_va12", VA12, va12_voltages,
MT6359_RG_LDO_VA12_EN_ADDR, MT6359_RG_LDO_VA12_EN_SHIFT,
MT6359_DA_VA12_B_EN_ADDR, MT6359_RG_VA12_VOSEL_ADDR,
MT6359_RG_VA12_VOSEL_MASK << MT6359_RG_VA12_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_va09", VA09, va09_voltages,
MT6359_RG_LDO_VA09_EN_ADDR, MT6359_RG_LDO_VA09_EN_SHIFT,
MT6359_DA_VA09_B_EN_ADDR, MT6359_RG_VA09_VOSEL_ADDR,
MT6359_RG_VA09_VOSEL_MASK << MT6359_RG_VA09_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vrf18", VRF18, vrf18_voltages,
MT6359_RG_LDO_VRF18_EN_ADDR, MT6359_RG_LDO_VRF18_EN_SHIFT,
MT6359_DA_VRF18_B_EN_ADDR, MT6359_RG_VRF18_VOSEL_ADDR,
MT6359_RG_VRF18_VOSEL_MASK << MT6359_RG_VRF18_VOSEL_SHIFT,
120),
MT6359_LDO_LINEAR("ldo_vsram_md", VSRAM_MD, 500000, 1100000, 6250,
MT6359_RG_LDO_VSRAM_MD_EN_ADDR,
MT6359_DA_VSRAM_MD_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_MD_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_MD_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_MD_VOSEL_SHIFT),
MT6359_LDO("ldo_vufs", VUFS, volt18_voltages,
MT6359_RG_LDO_VUFS_EN_ADDR, MT6359_RG_LDO_VUFS_EN_SHIFT,
MT6359_DA_VUFS_B_EN_ADDR, MT6359_RG_VUFS_VOSEL_ADDR,
MT6359_RG_VUFS_VOSEL_MASK << MT6359_RG_VUFS_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vm18", VM18, volt18_voltages,
MT6359_RG_LDO_VM18_EN_ADDR, MT6359_RG_LDO_VM18_EN_SHIFT,
MT6359_DA_VM18_B_EN_ADDR, MT6359_RG_VM18_VOSEL_ADDR,
MT6359_RG_VM18_VOSEL_MASK << MT6359_RG_VM18_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vbbck", VBBCK, vbbck_voltages,
MT6359_RG_LDO_VBBCK_EN_ADDR, MT6359_RG_LDO_VBBCK_EN_SHIFT,
MT6359_DA_VBBCK_B_EN_ADDR, MT6359_RG_VBBCK_VOSEL_ADDR,
MT6359_RG_VBBCK_VOSEL_MASK << MT6359_RG_VBBCK_VOSEL_SHIFT,
240),
MT6359_LDO_LINEAR("ldo_vsram_proc1", VSRAM_PROC1, 500000, 1293750, 6250,
MT6359_RG_LDO_VSRAM_PROC1_EN_ADDR,
MT6359_DA_VSRAM_PROC1_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_SHIFT),
MT6359_LDO("ldo_vsim2", VSIM2, vsim2_voltages,
MT6359_RG_LDO_VSIM2_EN_ADDR, MT6359_RG_LDO_VSIM2_EN_SHIFT,
MT6359_DA_VSIM2_B_EN_ADDR, MT6359_RG_VSIM2_VOSEL_ADDR,
MT6359_RG_VSIM2_VOSEL_MASK << MT6359_RG_VSIM2_VOSEL_SHIFT,
480),
MT6359_LDO_LINEAR("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB,
500000, 1293750, 6250,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_EN_ADDR,
MT6359_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_SHIFT),
};
static struct mt6359_regulator_info mt6359p_regulators[] = {
MT6359_BUCK("buck_vs1", VS1, 800000, 2200000, 12500,
MT6359_RG_BUCK_VS1_EN_ADDR,
MT6359_DA_VS1_EN_ADDR, MT6359_RG_BUCK_VS1_VOSEL_ADDR,
MT6359_RG_BUCK_VS1_VOSEL_MASK <<
MT6359_RG_BUCK_VS1_VOSEL_SHIFT,
MT6359_RG_BUCK_VS1_LP_ADDR, MT6359_RG_BUCK_VS1_LP_SHIFT,
MT6359_RG_VS1_FPWM_ADDR, MT6359_RG_VS1_FPWM_SHIFT),
MT6359_BUCK("buck_vgpu11", VGPU11, 400000, 1193750, 6250,
MT6359_RG_BUCK_VGPU11_EN_ADDR,
MT6359_DA_VGPU11_EN_ADDR, MT6359P_RG_BUCK_VGPU11_VOSEL_ADDR,
MT6359_RG_BUCK_VGPU11_VOSEL_MASK <<
MT6359_RG_BUCK_VGPU11_VOSEL_SHIFT,
MT6359_RG_BUCK_VGPU11_LP_ADDR,
MT6359_RG_BUCK_VGPU11_LP_SHIFT,
MT6359_RG_VGPU11_FCCM_ADDR, MT6359_RG_VGPU11_FCCM_SHIFT),
MT6359_BUCK("buck_vmodem", VMODEM, 400000, 1100000, 6250,
MT6359_RG_BUCK_VMODEM_EN_ADDR,
MT6359_DA_VMODEM_EN_ADDR, MT6359_RG_BUCK_VMODEM_VOSEL_ADDR,
MT6359_RG_BUCK_VMODEM_VOSEL_MASK <<
MT6359_RG_BUCK_VMODEM_VOSEL_SHIFT,
MT6359_RG_BUCK_VMODEM_LP_ADDR,
MT6359_RG_BUCK_VMODEM_LP_SHIFT,
MT6359_RG_VMODEM_FCCM_ADDR, MT6359_RG_VMODEM_FCCM_SHIFT),
MT6359_BUCK("buck_vpu", VPU, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPU_EN_ADDR,
MT6359_DA_VPU_EN_ADDR, MT6359_RG_BUCK_VPU_VOSEL_ADDR,
MT6359_RG_BUCK_VPU_VOSEL_MASK <<
MT6359_RG_BUCK_VPU_VOSEL_SHIFT,
MT6359_RG_BUCK_VPU_LP_ADDR, MT6359_RG_BUCK_VPU_LP_SHIFT,
MT6359_RG_VPU_FCCM_ADDR, MT6359_RG_VPU_FCCM_SHIFT),
MT6359_BUCK("buck_vcore", VCORE, 506250, 1300000, 6250,
MT6359_RG_BUCK_VCORE_EN_ADDR,
MT6359_DA_VCORE_EN_ADDR, MT6359P_RG_BUCK_VCORE_VOSEL_ADDR,
MT6359_RG_BUCK_VCORE_VOSEL_MASK <<
MT6359_RG_BUCK_VCORE_VOSEL_SHIFT,
MT6359_RG_BUCK_VCORE_LP_ADDR, MT6359_RG_BUCK_VCORE_LP_SHIFT,
MT6359_RG_VCORE_FCCM_ADDR, MT6359_RG_VCORE_FCCM_SHIFT),
MT6359_BUCK("buck_vs2", VS2, 800000, 1600000, 12500,
MT6359_RG_BUCK_VS2_EN_ADDR,
MT6359_DA_VS2_EN_ADDR, MT6359_RG_BUCK_VS2_VOSEL_ADDR,
MT6359_RG_BUCK_VS2_VOSEL_MASK <<
MT6359_RG_BUCK_VS2_VOSEL_SHIFT,
MT6359_RG_BUCK_VS2_LP_ADDR, MT6359_RG_BUCK_VS2_LP_SHIFT,
MT6359_RG_VS2_FPWM_ADDR, MT6359_RG_VS2_FPWM_SHIFT),
MT6359_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
MT6359_RG_BUCK_VPA_EN_ADDR,
MT6359_DA_VPA_EN_ADDR, MT6359_RG_BUCK_VPA_VOSEL_ADDR,
MT6359_RG_BUCK_VPA_VOSEL_MASK <<
MT6359_RG_BUCK_VPA_VOSEL_SHIFT,
MT6359_RG_BUCK_VPA_LP_ADDR, MT6359_RG_BUCK_VPA_LP_SHIFT,
MT6359_RG_VPA_MODESET_ADDR, MT6359_RG_VPA_MODESET_SHIFT),
MT6359_BUCK("buck_vproc2", VPROC2, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPROC2_EN_ADDR,
MT6359_DA_VPROC2_EN_ADDR, MT6359_RG_BUCK_VPROC2_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC2_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC2_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC2_LP_ADDR,
MT6359_RG_BUCK_VPROC2_LP_SHIFT,
MT6359_RG_VPROC2_FCCM_ADDR, MT6359_RG_VPROC2_FCCM_SHIFT),
MT6359_BUCK("buck_vproc1", VPROC1, 400000, 1193750, 6250,
MT6359_RG_BUCK_VPROC1_EN_ADDR,
MT6359_DA_VPROC1_EN_ADDR, MT6359_RG_BUCK_VPROC1_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC1_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC1_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC1_LP_ADDR,
MT6359_RG_BUCK_VPROC1_LP_SHIFT,
MT6359_RG_VPROC1_FCCM_ADDR, MT6359_RG_VPROC1_FCCM_SHIFT),
MT6359_BUCK("buck_vgpu11_sshub", VGPU11_SSHUB, 400000, 1193750, 6250,
MT6359P_RG_BUCK_VGPU11_SSHUB_EN_ADDR,
MT6359_DA_VGPU11_EN_ADDR,
MT6359P_RG_BUCK_VGPU11_SSHUB_VOSEL_ADDR,
MT6359P_RG_BUCK_VGPU11_SSHUB_VOSEL_MASK <<
MT6359P_RG_BUCK_VGPU11_SSHUB_VOSEL_SHIFT,
MT6359_RG_BUCK_VGPU11_LP_ADDR,
MT6359_RG_BUCK_VGPU11_LP_SHIFT,
MT6359_RG_VGPU11_FCCM_ADDR, MT6359_RG_VGPU11_FCCM_SHIFT),
MT6359_REG_FIXED("ldo_vaud18", VAUD18, MT6359P_RG_LDO_VAUD18_EN_ADDR,
MT6359P_DA_VAUD18_B_EN_ADDR, 1800000),
MT6359_LDO("ldo_vsim1", VSIM1, vsim1_voltages,
MT6359P_RG_LDO_VSIM1_EN_ADDR, MT6359P_RG_LDO_VSIM1_EN_SHIFT,
MT6359P_DA_VSIM1_B_EN_ADDR, MT6359P_RG_VSIM1_VOSEL_ADDR,
MT6359_RG_VSIM1_VOSEL_MASK << MT6359_RG_VSIM1_VOSEL_SHIFT,
480),
MT6359_LDO("ldo_vibr", VIBR, vibr_voltages,
MT6359P_RG_LDO_VIBR_EN_ADDR, MT6359P_RG_LDO_VIBR_EN_SHIFT,
MT6359P_DA_VIBR_B_EN_ADDR, MT6359P_RG_VIBR_VOSEL_ADDR,
MT6359_RG_VIBR_VOSEL_MASK << MT6359_RG_VIBR_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vrf12", VRF12, vrf12_voltages,
MT6359P_RG_LDO_VRF12_EN_ADDR, MT6359P_RG_LDO_VRF12_EN_SHIFT,
MT6359P_DA_VRF12_B_EN_ADDR, MT6359P_RG_VRF12_VOSEL_ADDR,
MT6359_RG_VRF12_VOSEL_MASK << MT6359_RG_VRF12_VOSEL_SHIFT,
480),
MT6359_REG_FIXED("ldo_vusb", VUSB, MT6359P_RG_LDO_VUSB_EN_0_ADDR,
MT6359P_DA_VUSB_B_EN_ADDR, 3000000),
MT6359_LDO_LINEAR("ldo_vsram_proc2", VSRAM_PROC2, 500000, 1293750, 6250,
MT6359P_RG_LDO_VSRAM_PROC2_EN_ADDR,
MT6359P_DA_VSRAM_PROC2_B_EN_ADDR,
MT6359P_RG_LDO_VSRAM_PROC2_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_SHIFT),
MT6359_LDO("ldo_vio18", VIO18, volt18_voltages,
MT6359P_RG_LDO_VIO18_EN_ADDR, MT6359P_RG_LDO_VIO18_EN_SHIFT,
MT6359P_DA_VIO18_B_EN_ADDR, MT6359P_RG_VIO18_VOSEL_ADDR,
MT6359_RG_VIO18_VOSEL_MASK << MT6359_RG_VIO18_VOSEL_SHIFT,
960),
MT6359_LDO("ldo_vcamio", VCAMIO, volt18_voltages,
MT6359P_RG_LDO_VCAMIO_EN_ADDR,
MT6359P_RG_LDO_VCAMIO_EN_SHIFT,
MT6359P_DA_VCAMIO_B_EN_ADDR, MT6359P_RG_VCAMIO_VOSEL_ADDR,
MT6359_RG_VCAMIO_VOSEL_MASK << MT6359_RG_VCAMIO_VOSEL_SHIFT,
1290),
MT6359_REG_FIXED("ldo_vcn18", VCN18, MT6359P_RG_LDO_VCN18_EN_ADDR,
MT6359P_DA_VCN18_B_EN_ADDR, 1800000),
MT6359_REG_FIXED("ldo_vfe28", VFE28, MT6359P_RG_LDO_VFE28_EN_ADDR,
MT6359P_DA_VFE28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vcn13", VCN13, vcn13_voltages,
MT6359P_RG_LDO_VCN13_EN_ADDR, MT6359P_RG_LDO_VCN13_EN_SHIFT,
MT6359P_DA_VCN13_B_EN_ADDR, MT6359P_RG_VCN13_VOSEL_ADDR,
MT6359_RG_VCN13_VOSEL_MASK << MT6359_RG_VCN13_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vcn33_1_bt", VCN33_1_BT, vcn33_voltages,
MT6359P_RG_LDO_VCN33_1_EN_0_ADDR,
MT6359_RG_LDO_VCN33_1_EN_0_SHIFT,
MT6359P_DA_VCN33_1_B_EN_ADDR, MT6359P_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_1_wifi", VCN33_1_WIFI, vcn33_voltages,
MT6359P_RG_LDO_VCN33_1_EN_1_ADDR,
MT6359P_RG_LDO_VCN33_1_EN_1_SHIFT,
MT6359P_DA_VCN33_1_B_EN_ADDR, MT6359P_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_REG_FIXED("ldo_vaux18", VAUX18, MT6359P_RG_LDO_VAUX18_EN_ADDR,
MT6359P_DA_VAUX18_B_EN_ADDR, 1800000),
MT6359_LDO_LINEAR("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750,
6250,
MT6359P_RG_LDO_VSRAM_OTHERS_EN_ADDR,
MT6359P_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359P_RG_LDO_VSRAM_OTHERS_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_SHIFT),
MT6359_LDO("ldo_vefuse", VEFUSE, vefuse_voltages,
MT6359P_RG_LDO_VEFUSE_EN_ADDR,
MT6359P_RG_LDO_VEFUSE_EN_SHIFT,
MT6359P_DA_VEFUSE_B_EN_ADDR, MT6359P_RG_VEFUSE_VOSEL_ADDR,
MT6359_RG_VEFUSE_VOSEL_MASK << MT6359_RG_VEFUSE_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vxo22", VXO22, vxo22_voltages,
MT6359P_RG_LDO_VXO22_EN_ADDR, MT6359P_RG_LDO_VXO22_EN_SHIFT,
MT6359P_DA_VXO22_B_EN_ADDR, MT6359P_RG_VXO22_VOSEL_ADDR,
MT6359_RG_VXO22_VOSEL_MASK << MT6359_RG_VXO22_VOSEL_SHIFT,
480),
MT6359_LDO("ldo_vrfck_1", VRFCK, vrfck_voltages_1,
MT6359P_RG_LDO_VRFCK_EN_ADDR, MT6359P_RG_LDO_VRFCK_EN_SHIFT,
MT6359P_DA_VRFCK_B_EN_ADDR, MT6359P_RG_VRFCK_VOSEL_ADDR,
MT6359_RG_VRFCK_VOSEL_MASK << MT6359_RG_VRFCK_VOSEL_SHIFT,
480),
MT6359_REG_FIXED("ldo_vbif28", VBIF28, MT6359P_RG_LDO_VBIF28_EN_ADDR,
MT6359P_DA_VBIF28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vio28", VIO28, vio28_voltages,
MT6359P_RG_LDO_VIO28_EN_ADDR, MT6359P_RG_LDO_VIO28_EN_SHIFT,
MT6359P_DA_VIO28_B_EN_ADDR, MT6359P_RG_VIO28_VOSEL_ADDR,
MT6359_RG_VIO28_VOSEL_MASK << MT6359_RG_VIO28_VOSEL_SHIFT,
1920),
MT6359P_LDO1("ldo_vemc_1", VEMC, mt6359p_vemc_ops, vemc_voltages_1,
MT6359P_RG_LDO_VEMC_EN_ADDR, MT6359P_RG_LDO_VEMC_EN_SHIFT,
MT6359P_DA_VEMC_B_EN_ADDR,
MT6359P_RG_LDO_VEMC_VOSEL_0_ADDR,
MT6359P_RG_LDO_VEMC_VOSEL_0_MASK <<
MT6359P_RG_LDO_VEMC_VOSEL_0_SHIFT),
MT6359_LDO("ldo_vcn33_2_bt", VCN33_2_BT, vcn33_voltages,
MT6359P_RG_LDO_VCN33_2_EN_0_ADDR,
MT6359P_RG_LDO_VCN33_2_EN_0_SHIFT,
MT6359P_DA_VCN33_2_B_EN_ADDR, MT6359P_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_2_wifi", VCN33_2_WIFI, vcn33_voltages,
MT6359P_RG_LDO_VCN33_2_EN_1_ADDR,
MT6359_RG_LDO_VCN33_2_EN_1_SHIFT,
MT6359P_DA_VCN33_2_B_EN_ADDR, MT6359P_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_va12", VA12, va12_voltages,
MT6359P_RG_LDO_VA12_EN_ADDR, MT6359P_RG_LDO_VA12_EN_SHIFT,
MT6359P_DA_VA12_B_EN_ADDR, MT6359P_RG_VA12_VOSEL_ADDR,
MT6359_RG_VA12_VOSEL_MASK << MT6359_RG_VA12_VOSEL_SHIFT,
960),
MT6359_LDO("ldo_va09", VA09, va09_voltages,
MT6359P_RG_LDO_VA09_EN_ADDR, MT6359P_RG_LDO_VA09_EN_SHIFT,
MT6359P_DA_VA09_B_EN_ADDR, MT6359P_RG_VA09_VOSEL_ADDR,
MT6359_RG_VA09_VOSEL_MASK << MT6359_RG_VA09_VOSEL_SHIFT,
960),
MT6359_LDO("ldo_vrf18", VRF18, vrf18_voltages,
MT6359P_RG_LDO_VRF18_EN_ADDR, MT6359P_RG_LDO_VRF18_EN_SHIFT,
MT6359P_DA_VRF18_B_EN_ADDR, MT6359P_RG_VRF18_VOSEL_ADDR,
MT6359_RG_VRF18_VOSEL_MASK << MT6359_RG_VRF18_VOSEL_SHIFT,
240),
MT6359_LDO_LINEAR("ldo_vsram_md", VSRAM_MD, 500000, 1293750, 6250,
MT6359P_RG_LDO_VSRAM_MD_EN_ADDR,
MT6359P_DA_VSRAM_MD_B_EN_ADDR,
MT6359P_RG_LDO_VSRAM_MD_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_MD_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_MD_VOSEL_SHIFT),
MT6359_LDO("ldo_vufs", VUFS, volt18_voltages,
MT6359P_RG_LDO_VUFS_EN_ADDR, MT6359P_RG_LDO_VUFS_EN_SHIFT,
MT6359P_DA_VUFS_B_EN_ADDR, MT6359P_RG_VUFS_VOSEL_ADDR,
MT6359_RG_VUFS_VOSEL_MASK << MT6359_RG_VUFS_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vm18", VM18, volt18_voltages,
MT6359P_RG_LDO_VM18_EN_ADDR, MT6359P_RG_LDO_VM18_EN_SHIFT,
MT6359P_DA_VM18_B_EN_ADDR, MT6359P_RG_VM18_VOSEL_ADDR,
MT6359_RG_VM18_VOSEL_MASK << MT6359_RG_VM18_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vbbck", VBBCK, vbbck_voltages,
MT6359P_RG_LDO_VBBCK_EN_ADDR, MT6359P_RG_LDO_VBBCK_EN_SHIFT,
MT6359P_DA_VBBCK_B_EN_ADDR, MT6359P_RG_VBBCK_VOSEL_ADDR,
MT6359P_RG_VBBCK_VOSEL_MASK << MT6359P_RG_VBBCK_VOSEL_SHIFT,
480),
MT6359_LDO_LINEAR("ldo_vsram_proc1", VSRAM_PROC1, 500000, 1293750, 6250,
MT6359P_RG_LDO_VSRAM_PROC1_EN_ADDR,
MT6359P_DA_VSRAM_PROC1_B_EN_ADDR,
MT6359P_RG_LDO_VSRAM_PROC1_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_SHIFT),
MT6359_LDO("ldo_vsim2", VSIM2, vsim2_voltages,
MT6359P_RG_LDO_VSIM2_EN_ADDR, MT6359P_RG_LDO_VSIM2_EN_SHIFT,
MT6359P_DA_VSIM2_B_EN_ADDR, MT6359P_RG_VSIM2_VOSEL_ADDR,
MT6359_RG_VSIM2_VOSEL_MASK << MT6359_RG_VSIM2_VOSEL_SHIFT,
480),
MT6359_LDO_LINEAR("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB,
500000, 1293750, 6250,
MT6359P_RG_LDO_VSRAM_OTHERS_SSHUB_EN_ADDR,
MT6359P_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359P_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_SHIFT),
};
static int mt6359_regulator_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rdev;
struct mt6359_regulator_info *mt6359_info;
int i, hw_ver, ret;
ret = regmap_read(mt6397->regmap, MT6359P_HWCID, &hw_ver);
if (ret)
return ret;
if (hw_ver >= MT6359P_CHIP_VER)
mt6359_info = mt6359p_regulators;
else
mt6359_info = mt6359_regulators;
config.dev = mt6397->dev;
config.regmap = mt6397->regmap;
for (i = 0; i < MT6359_MAX_REGULATOR; i++, mt6359_info++) {
config.driver_data = mt6359_info;
rdev = devm_regulator_register(&pdev->dev, &mt6359_info->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n", mt6359_info->desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id mt6359_platform_ids[] = {
{"mt6359-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6359_platform_ids);
static struct platform_driver mt6359_regulator_driver = {
.driver = {
.name = "mt6359-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = mt6359_regulator_probe,
.id_table = mt6359_platform_ids,
};
module_platform_driver(mt6359_regulator_driver);
MODULE_AUTHOR("Wen Su <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6359 PMIC");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/mt6359-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// SY8824C/SY8824E regulator driver
//
// Copyright (C) 2019 Synaptics Incorporated
//
// Author: Jisheng Zhang <[email protected]>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define SY8824C_BUCK_EN (1 << 7)
#define SY8824C_MODE (1 << 6)
struct sy8824_config {
/* registers */
unsigned int vol_reg;
unsigned int mode_reg;
unsigned int enable_reg;
/* Voltage range and step(linear) */
unsigned int vsel_min;
unsigned int vsel_step;
unsigned int vsel_count;
const struct regmap_config *config;
};
struct sy8824_device_info {
struct device *dev;
struct regulator_desc desc;
struct regulator_init_data *regulator;
const struct sy8824_config *cfg;
};
static int sy8824_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct sy8824_device_info *di = rdev_get_drvdata(rdev);
const struct sy8824_config *cfg = di->cfg;
switch (mode) {
case REGULATOR_MODE_FAST:
regmap_update_bits(rdev->regmap, cfg->mode_reg,
SY8824C_MODE, SY8824C_MODE);
break;
case REGULATOR_MODE_NORMAL:
regmap_update_bits(rdev->regmap, cfg->mode_reg,
SY8824C_MODE, 0);
break;
default:
return -EINVAL;
}
return 0;
}
static unsigned int sy8824_get_mode(struct regulator_dev *rdev)
{
struct sy8824_device_info *di = rdev_get_drvdata(rdev);
const struct sy8824_config *cfg = di->cfg;
u32 val;
int ret = 0;
ret = regmap_read(rdev->regmap, cfg->mode_reg, &val);
if (ret < 0)
return ret;
if (val & SY8824C_MODE)
return REGULATOR_MODE_FAST;
else
return REGULATOR_MODE_NORMAL;
}
static const struct regulator_ops sy8824_regulator_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.map_voltage = regulator_map_voltage_linear,
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = sy8824_set_mode,
.get_mode = sy8824_get_mode,
};
static int sy8824_regulator_register(struct sy8824_device_info *di,
struct regulator_config *config)
{
struct regulator_desc *rdesc = &di->desc;
const struct sy8824_config *cfg = di->cfg;
struct regulator_dev *rdev;
rdesc->name = "sy8824-reg";
rdesc->supply_name = "vin";
rdesc->ops = &sy8824_regulator_ops;
rdesc->type = REGULATOR_VOLTAGE;
rdesc->n_voltages = cfg->vsel_count;
rdesc->enable_reg = cfg->enable_reg;
rdesc->enable_mask = SY8824C_BUCK_EN;
rdesc->min_uV = cfg->vsel_min;
rdesc->uV_step = cfg->vsel_step;
rdesc->vsel_reg = cfg->vol_reg;
rdesc->vsel_mask = cfg->vsel_count - 1;
rdesc->owner = THIS_MODULE;
rdev = devm_regulator_register(di->dev, &di->desc, config);
return PTR_ERR_OR_ZERO(rdev);
}
static const struct regmap_config sy8824_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.num_reg_defaults_raw = 1,
.cache_type = REGCACHE_FLAT,
};
static const struct regmap_config sy20276_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.num_reg_defaults_raw = 2,
.cache_type = REGCACHE_FLAT,
};
static int sy8824_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct device_node *np = dev->of_node;
struct sy8824_device_info *di;
struct regulator_config config = { };
struct regmap *regmap;
int ret;
di = devm_kzalloc(dev, sizeof(struct sy8824_device_info), GFP_KERNEL);
if (!di)
return -ENOMEM;
di->regulator = of_get_regulator_init_data(dev, np, &di->desc);
if (!di->regulator) {
dev_err(dev, "Platform data not found!\n");
return -EINVAL;
}
di->dev = dev;
di->cfg = of_device_get_match_data(dev);
regmap = devm_regmap_init_i2c(client, di->cfg->config);
if (IS_ERR(regmap)) {
dev_err(dev, "Failed to allocate regmap!\n");
return PTR_ERR(regmap);
}
i2c_set_clientdata(client, di);
config.dev = di->dev;
config.init_data = di->regulator;
config.regmap = regmap;
config.driver_data = di;
config.of_node = np;
ret = sy8824_regulator_register(di, &config);
if (ret < 0)
dev_err(dev, "Failed to register regulator!\n");
return ret;
}
static const struct sy8824_config sy8824c_cfg = {
.vol_reg = 0x00,
.mode_reg = 0x00,
.enable_reg = 0x00,
.vsel_min = 762500,
.vsel_step = 12500,
.vsel_count = 64,
.config = &sy8824_regmap_config,
};
static const struct sy8824_config sy8824e_cfg = {
.vol_reg = 0x00,
.mode_reg = 0x00,
.enable_reg = 0x00,
.vsel_min = 700000,
.vsel_step = 12500,
.vsel_count = 64,
.config = &sy8824_regmap_config,
};
static const struct sy8824_config sy20276_cfg = {
.vol_reg = 0x00,
.mode_reg = 0x01,
.enable_reg = 0x01,
.vsel_min = 600000,
.vsel_step = 10000,
.vsel_count = 128,
.config = &sy20276_regmap_config,
};
static const struct sy8824_config sy20278_cfg = {
.vol_reg = 0x00,
.mode_reg = 0x01,
.enable_reg = 0x01,
.vsel_min = 762500,
.vsel_step = 12500,
.vsel_count = 64,
.config = &sy20276_regmap_config,
};
static const struct of_device_id sy8824_dt_ids[] = {
{
.compatible = "silergy,sy8824c",
.data = &sy8824c_cfg
},
{
.compatible = "silergy,sy8824e",
.data = &sy8824e_cfg
},
{
.compatible = "silergy,sy20276",
.data = &sy20276_cfg
},
{
.compatible = "silergy,sy20278",
.data = &sy20278_cfg
},
{ }
};
MODULE_DEVICE_TABLE(of, sy8824_dt_ids);
static const struct i2c_device_id sy8824_id[] = {
{ "sy8824", },
{ },
};
MODULE_DEVICE_TABLE(i2c, sy8824_id);
static struct i2c_driver sy8824_regulator_driver = {
.driver = {
.name = "sy8824-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = sy8824_dt_ids,
},
.probe = sy8824_i2c_probe,
.id_table = sy8824_id,
};
module_i2c_driver(sy8824_regulator_driver);
MODULE_AUTHOR("Jisheng Zhang <[email protected]>");
MODULE_DESCRIPTION("SY8824C/SY8824E regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/sy8824x.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Texas Instruments SoC Adaptive Body Bias(ABB) Regulator
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Mike Turquette <[email protected]>
*
* Copyright (C) 2012-2013 Texas Instruments, Inc.
* Andrii Tseglytskyi <[email protected]>
* Nishanth Menon <[email protected]>
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
/*
* ABB LDO operating states:
* NOMINAL_OPP: bypasses the ABB LDO
* FAST_OPP: sets ABB LDO to Forward Body-Bias
* SLOW_OPP: sets ABB LDO to Reverse Body-Bias
*/
#define TI_ABB_NOMINAL_OPP 0
#define TI_ABB_FAST_OPP 1
#define TI_ABB_SLOW_OPP 3
/**
* struct ti_abb_info - ABB information per voltage setting
* @opp_sel: one of TI_ABB macro
* @vset: (optional) vset value that LDOVBB needs to be overridden with.
*
* Array of per voltage entries organized in the same order as regulator_desc's
* volt_table list. (selector is used to index from this array)
*/
struct ti_abb_info {
u32 opp_sel;
u32 vset;
};
/**
* struct ti_abb_reg - Register description for ABB block
* @setup_off: setup register offset from base
* @control_off: control register offset from base
* @sr2_wtcnt_value_mask: setup register- sr2_wtcnt_value mask
* @fbb_sel_mask: setup register- FBB sel mask
* @rbb_sel_mask: setup register- RBB sel mask
* @sr2_en_mask: setup register- enable mask
* @opp_change_mask: control register - mask to trigger LDOVBB change
* @opp_sel_mask: control register - mask for mode to operate
*/
struct ti_abb_reg {
u32 setup_off;
u32 control_off;
/* Setup register fields */
u32 sr2_wtcnt_value_mask;
u32 fbb_sel_mask;
u32 rbb_sel_mask;
u32 sr2_en_mask;
/* Control register fields */
u32 opp_change_mask;
u32 opp_sel_mask;
};
/**
* struct ti_abb - ABB instance data
* @rdesc: regulator descriptor
* @clk: clock(usually sysclk) supplying ABB block
* @base: base address of ABB block
* @setup_reg: setup register of ABB block
* @control_reg: control register of ABB block
* @int_base: interrupt register base address
* @efuse_base: (optional) efuse base address for ABB modes
* @ldo_base: (optional) LDOVBB vset override base address
* @regs: pointer to struct ti_abb_reg for ABB block
* @txdone_mask: mask on int_base for tranxdone interrupt
* @ldovbb_override_mask: mask to ldo_base for overriding default LDO VBB
* vset with value from efuse
* @ldovbb_vset_mask: mask to ldo_base for providing the VSET override
* @info: array to per voltage ABB configuration
* @current_info_idx: current index to info
* @settling_time: SoC specific settling time for LDO VBB
*/
struct ti_abb {
struct regulator_desc rdesc;
struct clk *clk;
void __iomem *base;
void __iomem *setup_reg;
void __iomem *control_reg;
void __iomem *int_base;
void __iomem *efuse_base;
void __iomem *ldo_base;
const struct ti_abb_reg *regs;
u32 txdone_mask;
u32 ldovbb_override_mask;
u32 ldovbb_vset_mask;
struct ti_abb_info *info;
int current_info_idx;
u32 settling_time;
};
/**
* ti_abb_rmw() - handy wrapper to set specific register bits
* @mask: mask for register field
* @value: value shifted to mask location and written
* @reg: register address
*
* Return: final register value (may be unused)
*/
static inline u32 ti_abb_rmw(u32 mask, u32 value, void __iomem *reg)
{
u32 val;
val = readl(reg);
val &= ~mask;
val |= (value << __ffs(mask)) & mask;
writel(val, reg);
return val;
}
/**
* ti_abb_check_txdone() - handy wrapper to check ABB tranxdone status
* @abb: pointer to the abb instance
*
* Return: true or false
*/
static inline bool ti_abb_check_txdone(const struct ti_abb *abb)
{
return !!(readl(abb->int_base) & abb->txdone_mask);
}
/**
* ti_abb_clear_txdone() - handy wrapper to clear ABB tranxdone status
* @abb: pointer to the abb instance
*/
static inline void ti_abb_clear_txdone(const struct ti_abb *abb)
{
writel(abb->txdone_mask, abb->int_base);
};
/**
* ti_abb_wait_txdone() - waits for ABB tranxdone event
* @dev: device
* @abb: pointer to the abb instance
*
* Return: 0 on success or -ETIMEDOUT if the event is not cleared on time.
*/
static int ti_abb_wait_txdone(struct device *dev, struct ti_abb *abb)
{
int timeout = 0;
bool status;
while (timeout++ <= abb->settling_time) {
status = ti_abb_check_txdone(abb);
if (status)
return 0;
udelay(1);
}
dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
__func__, timeout, readl(abb->int_base));
return -ETIMEDOUT;
}
/**
* ti_abb_clear_all_txdone() - clears ABB tranxdone event
* @dev: device
* @abb: pointer to the abb instance
*
* Return: 0 on success or -ETIMEDOUT if the event is not cleared on time.
*/
static int ti_abb_clear_all_txdone(struct device *dev, const struct ti_abb *abb)
{
int timeout = 0;
bool status;
while (timeout++ <= abb->settling_time) {
ti_abb_clear_txdone(abb);
status = ti_abb_check_txdone(abb);
if (!status)
return 0;
udelay(1);
}
dev_warn_ratelimited(dev, "%s:TRANXDONE timeout(%duS) int=0x%08x\n",
__func__, timeout, readl(abb->int_base));
return -ETIMEDOUT;
}
/**
* ti_abb_program_ldovbb() - program LDOVBB register for override value
* @dev: device
* @abb: pointer to the abb instance
* @info: ABB info to program
*/
static void ti_abb_program_ldovbb(struct device *dev, const struct ti_abb *abb,
struct ti_abb_info *info)
{
u32 val;
val = readl(abb->ldo_base);
/* clear up previous values */
val &= ~(abb->ldovbb_override_mask | abb->ldovbb_vset_mask);
switch (info->opp_sel) {
case TI_ABB_SLOW_OPP:
case TI_ABB_FAST_OPP:
val |= abb->ldovbb_override_mask;
val |= info->vset << __ffs(abb->ldovbb_vset_mask);
break;
}
writel(val, abb->ldo_base);
}
/**
* ti_abb_set_opp() - Setup ABB and LDO VBB for required bias
* @rdev: regulator device
* @abb: pointer to the abb instance
* @info: ABB info to program
*
* Return: 0 on success or appropriate error value when fails
*/
static int ti_abb_set_opp(struct regulator_dev *rdev, struct ti_abb *abb,
struct ti_abb_info *info)
{
const struct ti_abb_reg *regs = abb->regs;
struct device *dev = &rdev->dev;
int ret;
ret = ti_abb_clear_all_txdone(dev, abb);
if (ret)
goto out;
ti_abb_rmw(regs->fbb_sel_mask | regs->rbb_sel_mask, 0, abb->setup_reg);
switch (info->opp_sel) {
case TI_ABB_SLOW_OPP:
ti_abb_rmw(regs->rbb_sel_mask, 1, abb->setup_reg);
break;
case TI_ABB_FAST_OPP:
ti_abb_rmw(regs->fbb_sel_mask, 1, abb->setup_reg);
break;
}
/* program next state of ABB ldo */
ti_abb_rmw(regs->opp_sel_mask, info->opp_sel, abb->control_reg);
/*
* program LDO VBB vset override if needed for !bypass mode
* XXX: Do not switch sequence - for !bypass, LDO override reset *must*
* be performed *before* switch to bias mode else VBB glitches.
*/
if (abb->ldo_base && info->opp_sel != TI_ABB_NOMINAL_OPP)
ti_abb_program_ldovbb(dev, abb, info);
/* Initiate ABB ldo change */
ti_abb_rmw(regs->opp_change_mask, 1, abb->control_reg);
/* Wait for ABB LDO to complete transition to new Bias setting */
ret = ti_abb_wait_txdone(dev, abb);
if (ret)
goto out;
ret = ti_abb_clear_all_txdone(dev, abb);
if (ret)
goto out;
/*
* Reset LDO VBB vset override bypass mode
* XXX: Do not switch sequence - for bypass, LDO override reset *must*
* be performed *after* switch to bypass else VBB glitches.
*/
if (abb->ldo_base && info->opp_sel == TI_ABB_NOMINAL_OPP)
ti_abb_program_ldovbb(dev, abb, info);
out:
return ret;
}
/**
* ti_abb_set_voltage_sel() - regulator accessor function to set ABB LDO
* @rdev: regulator device
* @sel: selector to index into required ABB LDO settings (maps to
* regulator descriptor's volt_table)
*
* Return: 0 on success or appropriate error value when fails
*/
static int ti_abb_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
{
const struct regulator_desc *desc = rdev->desc;
struct ti_abb *abb = rdev_get_drvdata(rdev);
struct device *dev = &rdev->dev;
struct ti_abb_info *info, *oinfo;
int ret = 0;
if (!abb) {
dev_err_ratelimited(dev, "%s: No regulator drvdata\n",
__func__);
return -ENODEV;
}
if (!desc->n_voltages || !abb->info) {
dev_err_ratelimited(dev,
"%s: No valid voltage table entries?\n",
__func__);
return -EINVAL;
}
if (sel >= desc->n_voltages) {
dev_err(dev, "%s: sel idx(%d) >= n_voltages(%d)\n", __func__,
sel, desc->n_voltages);
return -EINVAL;
}
/* If we are in the same index as we were, nothing to do here! */
if (sel == abb->current_info_idx) {
dev_dbg(dev, "%s: Already at sel=%d\n", __func__, sel);
return ret;
}
info = &abb->info[sel];
/*
* When Linux kernel is starting up, we aren't sure of the
* Bias configuration that bootloader has configured.
* So, we get to know the actual setting the first time
* we are asked to transition.
*/
if (abb->current_info_idx == -EINVAL)
goto just_set_abb;
/* If data is exactly the same, then just update index, no change */
oinfo = &abb->info[abb->current_info_idx];
if (!memcmp(info, oinfo, sizeof(*info))) {
dev_dbg(dev, "%s: Same data new idx=%d, old idx=%d\n", __func__,
sel, abb->current_info_idx);
goto out;
}
just_set_abb:
ret = ti_abb_set_opp(rdev, abb, info);
out:
if (!ret)
abb->current_info_idx = sel;
else
dev_err_ratelimited(dev,
"%s: Volt[%d] idx[%d] mode[%d] Fail(%d)\n",
__func__, desc->volt_table[sel], sel,
info->opp_sel, ret);
return ret;
}
/**
* ti_abb_get_voltage_sel() - Regulator accessor to get current ABB LDO setting
* @rdev: regulator device
*
* Return: 0 on success or appropriate error value when fails
*/
static int ti_abb_get_voltage_sel(struct regulator_dev *rdev)
{
const struct regulator_desc *desc = rdev->desc;
struct ti_abb *abb = rdev_get_drvdata(rdev);
struct device *dev = &rdev->dev;
if (!abb) {
dev_err_ratelimited(dev, "%s: No regulator drvdata\n",
__func__);
return -ENODEV;
}
if (!desc->n_voltages || !abb->info) {
dev_err_ratelimited(dev,
"%s: No valid voltage table entries?\n",
__func__);
return -EINVAL;
}
if (abb->current_info_idx >= (int)desc->n_voltages) {
dev_err(dev, "%s: Corrupted data? idx(%d) >= n_voltages(%d)\n",
__func__, abb->current_info_idx, desc->n_voltages);
return -EINVAL;
}
return abb->current_info_idx;
}
/**
* ti_abb_init_timings() - setup ABB clock timing for the current platform
* @dev: device
* @abb: pointer to the abb instance
*
* Return: 0 if timing is updated, else returns error result.
*/
static int ti_abb_init_timings(struct device *dev, struct ti_abb *abb)
{
u32 clock_cycles;
u32 clk_rate, sr2_wt_cnt_val, cycle_rate;
const struct ti_abb_reg *regs = abb->regs;
int ret;
char *pname = "ti,settling-time";
/* read device tree properties */
ret = of_property_read_u32(dev->of_node, pname, &abb->settling_time);
if (ret) {
dev_err(dev, "Unable to get property '%s'(%d)\n", pname, ret);
return ret;
}
/* ABB LDO cannot be settle in 0 time */
if (!abb->settling_time) {
dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
return -EINVAL;
}
pname = "ti,clock-cycles";
ret = of_property_read_u32(dev->of_node, pname, &clock_cycles);
if (ret) {
dev_err(dev, "Unable to get property '%s'(%d)\n", pname, ret);
return ret;
}
/* ABB LDO cannot be settle in 0 clock cycles */
if (!clock_cycles) {
dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
return -EINVAL;
}
abb->clk = devm_clk_get(dev, NULL);
if (IS_ERR(abb->clk)) {
ret = PTR_ERR(abb->clk);
dev_err(dev, "%s: Unable to get clk(%d)\n", __func__, ret);
return ret;
}
/*
* SR2_WTCNT_VALUE is the settling time for the ABB ldo after a
* transition and must be programmed with the correct time at boot.
* The value programmed into the register is the number of SYS_CLK
* clock cycles that match a given wall time profiled for the ldo.
* This value depends on:
* settling time of ldo in micro-seconds (varies per OMAP family)
* # of clock cycles per SYS_CLK period (varies per OMAP family)
* the SYS_CLK frequency in MHz (varies per board)
* The formula is:
*
* ldo settling time (in micro-seconds)
* SR2_WTCNT_VALUE = ------------------------------------------
* (# system clock cycles) * (sys_clk period)
*
* Put another way:
*
* SR2_WTCNT_VALUE = settling time / (# SYS_CLK cycles / SYS_CLK rate))
*
* To avoid dividing by zero multiply both "# clock cycles" and
* "settling time" by 10 such that the final result is the one we want.
*/
/* Convert SYS_CLK rate to MHz & prevent divide by zero */
clk_rate = DIV_ROUND_CLOSEST(clk_get_rate(abb->clk), 1000000);
/* Calculate cycle rate */
cycle_rate = DIV_ROUND_CLOSEST(clock_cycles * 10, clk_rate);
/* Calculate SR2_WTCNT_VALUE */
sr2_wt_cnt_val = DIV_ROUND_CLOSEST(abb->settling_time * 10, cycle_rate);
dev_dbg(dev, "%s: Clk_rate=%ld, sr2_cnt=0x%08x\n", __func__,
clk_get_rate(abb->clk), sr2_wt_cnt_val);
ti_abb_rmw(regs->sr2_wtcnt_value_mask, sr2_wt_cnt_val, abb->setup_reg);
return 0;
}
/**
* ti_abb_init_table() - Initialize ABB table from device tree
* @dev: device
* @abb: pointer to the abb instance
* @rinit_data: regulator initdata
*
* Return: 0 on success or appropriate error value when fails
*/
static int ti_abb_init_table(struct device *dev, struct ti_abb *abb,
struct regulator_init_data *rinit_data)
{
struct ti_abb_info *info;
const u32 num_values = 6;
char *pname = "ti,abb_info";
u32 i;
unsigned int *volt_table;
int num_entries, min_uV = INT_MAX, max_uV = 0;
struct regulation_constraints *c = &rinit_data->constraints;
/*
* Each abb_info is a set of n-tuple, where n is num_values, consisting
* of voltage and a set of detection logic for ABB information for that
* voltage to apply.
*/
num_entries = of_property_count_u32_elems(dev->of_node, pname);
if (num_entries < 0) {
dev_err(dev, "No '%s' property?\n", pname);
return num_entries;
}
if (!num_entries || (num_entries % num_values)) {
dev_err(dev, "All '%s' list entries need %d vals\n", pname,
num_values);
return -EINVAL;
}
num_entries /= num_values;
info = devm_kcalloc(dev, num_entries, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
abb->info = info;
volt_table = devm_kcalloc(dev, num_entries, sizeof(unsigned int),
GFP_KERNEL);
if (!volt_table)
return -ENOMEM;
abb->rdesc.n_voltages = num_entries;
abb->rdesc.volt_table = volt_table;
/* We do not know where the OPP voltage is at the moment */
abb->current_info_idx = -EINVAL;
for (i = 0; i < num_entries; i++, info++, volt_table++) {
u32 efuse_offset, rbb_mask, fbb_mask, vset_mask;
u32 efuse_val;
/* NOTE: num_values should equal to entries picked up here */
of_property_read_u32_index(dev->of_node, pname, i * num_values,
volt_table);
of_property_read_u32_index(dev->of_node, pname,
i * num_values + 1, &info->opp_sel);
of_property_read_u32_index(dev->of_node, pname,
i * num_values + 2, &efuse_offset);
of_property_read_u32_index(dev->of_node, pname,
i * num_values + 3, &rbb_mask);
of_property_read_u32_index(dev->of_node, pname,
i * num_values + 4, &fbb_mask);
of_property_read_u32_index(dev->of_node, pname,
i * num_values + 5, &vset_mask);
dev_dbg(dev,
"[%d]v=%d ABB=%d ef=0x%x rbb=0x%x fbb=0x%x vset=0x%x\n",
i, *volt_table, info->opp_sel, efuse_offset, rbb_mask,
fbb_mask, vset_mask);
/* Find min/max for voltage set */
if (min_uV > *volt_table)
min_uV = *volt_table;
if (max_uV < *volt_table)
max_uV = *volt_table;
if (!abb->efuse_base) {
/* Ignore invalid data, but warn to help cleanup */
if (efuse_offset || rbb_mask || fbb_mask || vset_mask)
dev_err(dev, "prop '%s': v=%d,bad efuse/mask\n",
pname, *volt_table);
goto check_abb;
}
efuse_val = readl(abb->efuse_base + efuse_offset);
/* Use ABB recommendation from Efuse */
if (efuse_val & rbb_mask)
info->opp_sel = TI_ABB_SLOW_OPP;
else if (efuse_val & fbb_mask)
info->opp_sel = TI_ABB_FAST_OPP;
else if (rbb_mask || fbb_mask)
info->opp_sel = TI_ABB_NOMINAL_OPP;
dev_dbg(dev,
"[%d]v=%d efusev=0x%x final ABB=%d\n",
i, *volt_table, efuse_val, info->opp_sel);
/* Use recommended Vset bits from Efuse */
if (!abb->ldo_base) {
if (vset_mask)
dev_err(dev, "prop'%s':v=%d vst=%x LDO base?\n",
pname, *volt_table, vset_mask);
continue;
}
info->vset = (efuse_val & vset_mask) >> __ffs(vset_mask);
dev_dbg(dev, "[%d]v=%d vset=%x\n", i, *volt_table, info->vset);
check_abb:
switch (info->opp_sel) {
case TI_ABB_NOMINAL_OPP:
case TI_ABB_FAST_OPP:
case TI_ABB_SLOW_OPP:
/* Valid values */
break;
default:
dev_err(dev, "%s:[%d]v=%d, ABB=%d is invalid! Abort!\n",
__func__, i, *volt_table, info->opp_sel);
return -EINVAL;
}
}
/* Setup the min/max voltage constraints from the supported list */
c->min_uV = min_uV;
c->max_uV = max_uV;
return 0;
}
static const struct regulator_ops ti_abb_reg_ops = {
.list_voltage = regulator_list_voltage_table,
.set_voltage_sel = ti_abb_set_voltage_sel,
.get_voltage_sel = ti_abb_get_voltage_sel,
};
/* Default ABB block offsets, IF this changes in future, create new one */
static const struct ti_abb_reg abb_regs_v1 = {
/* WARNING: registers are wrongly documented in TRM */
.setup_off = 0x04,
.control_off = 0x00,
.sr2_wtcnt_value_mask = (0xff << 8),
.fbb_sel_mask = (0x01 << 2),
.rbb_sel_mask = (0x01 << 1),
.sr2_en_mask = (0x01 << 0),
.opp_change_mask = (0x01 << 2),
.opp_sel_mask = (0x03 << 0),
};
static const struct ti_abb_reg abb_regs_v2 = {
.setup_off = 0x00,
.control_off = 0x04,
.sr2_wtcnt_value_mask = (0xff << 8),
.fbb_sel_mask = (0x01 << 2),
.rbb_sel_mask = (0x01 << 1),
.sr2_en_mask = (0x01 << 0),
.opp_change_mask = (0x01 << 2),
.opp_sel_mask = (0x03 << 0),
};
static const struct ti_abb_reg abb_regs_generic = {
.sr2_wtcnt_value_mask = (0xff << 8),
.fbb_sel_mask = (0x01 << 2),
.rbb_sel_mask = (0x01 << 1),
.sr2_en_mask = (0x01 << 0),
.opp_change_mask = (0x01 << 2),
.opp_sel_mask = (0x03 << 0),
};
static const struct of_device_id ti_abb_of_match[] = {
{.compatible = "ti,abb-v1", .data = &abb_regs_v1},
{.compatible = "ti,abb-v2", .data = &abb_regs_v2},
{.compatible = "ti,abb-v3", .data = &abb_regs_generic},
{ },
};
MODULE_DEVICE_TABLE(of, ti_abb_of_match);
/**
* ti_abb_probe() - Initialize an ABB ldo instance
* @pdev: ABB platform device
*
* Initializes an individual ABB LDO for required Body-Bias. ABB is used to
* additional bias supply to SoC modules for power savings or mandatory stability
* configuration at certain Operating Performance Points(OPPs).
*
* Return: 0 on success or appropriate error value when fails
*/
static int ti_abb_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct of_device_id *match;
struct resource *res;
struct ti_abb *abb;
struct regulator_init_data *initdata = NULL;
struct regulator_dev *rdev = NULL;
struct regulator_desc *desc;
struct regulation_constraints *c;
struct regulator_config config = { };
char *pname;
int ret = 0;
match = of_match_device(ti_abb_of_match, dev);
if (!match) {
/* We do not expect this to happen */
dev_err(dev, "%s: Unable to match device\n", __func__);
return -ENODEV;
}
if (!match->data) {
dev_err(dev, "%s: Bad data in match\n", __func__);
return -EINVAL;
}
abb = devm_kzalloc(dev, sizeof(struct ti_abb), GFP_KERNEL);
if (!abb)
return -ENOMEM;
abb->regs = match->data;
/* Map ABB resources */
if (abb->regs->setup_off || abb->regs->control_off) {
abb->base = devm_platform_ioremap_resource_byname(pdev, "base-address");
if (IS_ERR(abb->base))
return PTR_ERR(abb->base);
abb->setup_reg = abb->base + abb->regs->setup_off;
abb->control_reg = abb->base + abb->regs->control_off;
} else {
abb->control_reg = devm_platform_ioremap_resource_byname(pdev, "control-address");
if (IS_ERR(abb->control_reg))
return PTR_ERR(abb->control_reg);
abb->setup_reg = devm_platform_ioremap_resource_byname(pdev, "setup-address");
if (IS_ERR(abb->setup_reg))
return PTR_ERR(abb->setup_reg);
}
abb->int_base = devm_platform_ioremap_resource_byname(pdev, "int-address");
if (IS_ERR(abb->int_base))
return PTR_ERR(abb->int_base);
/* Map Optional resources */
pname = "efuse-address";
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
if (!res) {
dev_dbg(dev, "Missing '%s' IO resource\n", pname);
ret = -ENODEV;
goto skip_opt;
}
/*
* We may have shared efuse register offsets which are read-only
* between domains
*/
abb->efuse_base = devm_ioremap(dev, res->start,
resource_size(res));
if (!abb->efuse_base) {
dev_err(dev, "Unable to map '%s'\n", pname);
return -ENOMEM;
}
pname = "ldo-address";
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
if (!res) {
dev_dbg(dev, "Missing '%s' IO resource\n", pname);
ret = -ENODEV;
goto skip_opt;
}
abb->ldo_base = devm_ioremap_resource(dev, res);
if (IS_ERR(abb->ldo_base))
return PTR_ERR(abb->ldo_base);
/* IF ldo_base is set, the following are mandatory */
pname = "ti,ldovbb-override-mask";
ret =
of_property_read_u32(pdev->dev.of_node, pname,
&abb->ldovbb_override_mask);
if (ret) {
dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
return ret;
}
if (!abb->ldovbb_override_mask) {
dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
return -EINVAL;
}
pname = "ti,ldovbb-vset-mask";
ret =
of_property_read_u32(pdev->dev.of_node, pname,
&abb->ldovbb_vset_mask);
if (ret) {
dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
return ret;
}
if (!abb->ldovbb_vset_mask) {
dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
return -EINVAL;
}
skip_opt:
pname = "ti,tranxdone-status-mask";
ret =
of_property_read_u32(pdev->dev.of_node, pname,
&abb->txdone_mask);
if (ret) {
dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
return ret;
}
if (!abb->txdone_mask) {
dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
return -EINVAL;
}
initdata = of_get_regulator_init_data(dev, pdev->dev.of_node,
&abb->rdesc);
if (!initdata) {
dev_err(dev, "%s: Unable to alloc regulator init data\n",
__func__);
return -ENOMEM;
}
/* init ABB opp_sel table */
ret = ti_abb_init_table(dev, abb, initdata);
if (ret)
return ret;
/* init ABB timing */
ret = ti_abb_init_timings(dev, abb);
if (ret)
return ret;
desc = &abb->rdesc;
desc->name = dev_name(dev);
desc->owner = THIS_MODULE;
desc->type = REGULATOR_VOLTAGE;
desc->ops = &ti_abb_reg_ops;
c = &initdata->constraints;
if (desc->n_voltages > 1)
c->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
c->always_on = true;
config.dev = dev;
config.init_data = initdata;
config.driver_data = abb;
config.of_node = pdev->dev.of_node;
rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "%s: failed to register regulator(%d)\n",
__func__, ret);
return ret;
}
platform_set_drvdata(pdev, rdev);
/* Enable the ldo if not already done by bootloader */
ti_abb_rmw(abb->regs->sr2_en_mask, 1, abb->setup_reg);
return 0;
}
MODULE_ALIAS("platform:ti_abb");
static struct platform_driver ti_abb_driver = {
.probe = ti_abb_probe,
.driver = {
.name = "ti_abb",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(ti_abb_of_match),
},
};
module_platform_driver(ti_abb_driver);
MODULE_DESCRIPTION("Texas Instruments ABB LDO regulator driver");
MODULE_AUTHOR("Texas Instruments Inc.");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/ti-abb-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* max8907-regulator.c -- support regulators in max8907
*
* Copyright (C) 2010 Gyungoh Yoo <[email protected]>
* Copyright (C) 2010-2012, NVIDIA CORPORATION. All rights reserved.
*
* Portions based on drivers/regulator/tps65910-regulator.c,
* Copyright 2010 Texas Instruments Inc.
* Author: Graeme Gregory <[email protected]>
* Author: Jorge Eduardo Candelaria <[email protected]>
*/
#include <linux/err.h>
#include <linux/init.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max8907.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#define MAX8907_II2RR_VERSION_MASK 0xF0
#define MAX8907_II2RR_VERSION_REV_A 0x00
#define MAX8907_II2RR_VERSION_REV_B 0x10
#define MAX8907_II2RR_VERSION_REV_C 0x30
struct max8907_regulator {
struct regulator_desc desc[MAX8907_NUM_REGULATORS];
};
#define REG_MBATT() \
[MAX8907_MBATT] = { \
.name = "MBATT", \
.supply_name = "mbatt", \
.id = MAX8907_MBATT, \
.ops = &max8907_mbatt_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
#define REG_LDO(ids, supply, base, min, max, step) \
[MAX8907_##ids] = { \
.name = #ids, \
.supply_name = supply, \
.id = MAX8907_##ids, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.ops = &max8907_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = (base) + MAX8907_VOUT, \
.vsel_mask = 0x3f, \
.enable_reg = (base) + MAX8907_CTL, \
.enable_mask = MAX8907_MASK_LDO_EN, \
}
#define REG_FIXED(ids, supply, voltage) \
[MAX8907_##ids] = { \
.name = #ids, \
.supply_name = supply, \
.id = MAX8907_##ids, \
.n_voltages = 1, \
.ops = &max8907_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = (voltage), \
}
#define REG_OUT5V(ids, supply, base, voltage) \
[MAX8907_##ids] = { \
.name = #ids, \
.supply_name = supply, \
.id = MAX8907_##ids, \
.n_voltages = 1, \
.ops = &max8907_out5v_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = (voltage), \
.enable_reg = (base), \
.enable_mask = MAX8907_MASK_OUT5V_EN, \
}
#define REG_BBAT(ids, supply, base, min, max, step) \
[MAX8907_##ids] = { \
.name = #ids, \
.supply_name = supply, \
.id = MAX8907_##ids, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.ops = &max8907_bbat_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = (base), \
.vsel_mask = MAX8907_MASK_VBBATTCV, \
}
#define LDO_750_50(id, supply, base) REG_LDO(id, supply, (base), \
750000, 3900000, 50000)
#define LDO_650_25(id, supply, base) REG_LDO(id, supply, (base), \
650000, 2225000, 25000)
static const struct regulator_ops max8907_mbatt_ops = {
};
static const struct regulator_ops max8907_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops max8907_ldo_hwctl_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops max8907_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_ops max8907_out5v_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops max8907_out5v_hwctl_ops = {
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_ops max8907_bbat_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_desc max8907_regulators[] = {
REG_MBATT(),
REG_LDO(SD1, "in-v1", MAX8907_REG_SDCTL1, 650000, 2225000, 25000),
REG_LDO(SD2, "in-v2", MAX8907_REG_SDCTL2, 637500, 1425000, 12500),
REG_LDO(SD3, "in-v3", MAX8907_REG_SDCTL3, 750000, 3900000, 50000),
LDO_750_50(LDO1, "in1", MAX8907_REG_LDOCTL1),
LDO_650_25(LDO2, "in2", MAX8907_REG_LDOCTL2),
LDO_650_25(LDO3, "in3", MAX8907_REG_LDOCTL3),
LDO_750_50(LDO4, "in4", MAX8907_REG_LDOCTL4),
LDO_750_50(LDO5, "in5", MAX8907_REG_LDOCTL5),
LDO_750_50(LDO6, "in6", MAX8907_REG_LDOCTL6),
LDO_750_50(LDO7, "in7", MAX8907_REG_LDOCTL7),
LDO_750_50(LDO8, "in8", MAX8907_REG_LDOCTL8),
LDO_750_50(LDO9, "in9", MAX8907_REG_LDOCTL9),
LDO_750_50(LDO10, "in10", MAX8907_REG_LDOCTL10),
LDO_750_50(LDO11, "in11", MAX8907_REG_LDOCTL11),
LDO_750_50(LDO12, "in12", MAX8907_REG_LDOCTL12),
LDO_750_50(LDO13, "in13", MAX8907_REG_LDOCTL13),
LDO_750_50(LDO14, "in14", MAX8907_REG_LDOCTL14),
LDO_750_50(LDO15, "in15", MAX8907_REG_LDOCTL15),
LDO_750_50(LDO16, "in16", MAX8907_REG_LDOCTL16),
LDO_650_25(LDO17, "in17", MAX8907_REG_LDOCTL17),
LDO_650_25(LDO18, "in18", MAX8907_REG_LDOCTL18),
LDO_750_50(LDO19, "in19", MAX8907_REG_LDOCTL19),
LDO_750_50(LDO20, "in20", MAX8907_REG_LDOCTL20),
REG_OUT5V(OUT5V, "mbatt", MAX8907_REG_OUT5VEN, 5000000),
REG_OUT5V(OUT33V, "mbatt", MAX8907_REG_OUT33VEN, 3300000),
REG_BBAT(BBAT, "MBATT", MAX8907_REG_BBAT_CNFG,
2400000, 3000000, 200000),
REG_FIXED(SDBY, "MBATT", 1200000),
REG_FIXED(VRTC, "MBATT", 3300000),
};
#ifdef CONFIG_OF
#define MATCH(_name, _id) \
[MAX8907_##_id] = { \
.name = #_name, \
.driver_data = (void *)&max8907_regulators[MAX8907_##_id], \
}
static struct of_regulator_match max8907_matches[] = {
MATCH(mbatt, MBATT),
MATCH(sd1, SD1),
MATCH(sd2, SD2),
MATCH(sd3, SD3),
MATCH(ldo1, LDO1),
MATCH(ldo2, LDO2),
MATCH(ldo3, LDO3),
MATCH(ldo4, LDO4),
MATCH(ldo5, LDO5),
MATCH(ldo6, LDO6),
MATCH(ldo7, LDO7),
MATCH(ldo8, LDO8),
MATCH(ldo9, LDO9),
MATCH(ldo10, LDO10),
MATCH(ldo11, LDO11),
MATCH(ldo12, LDO12),
MATCH(ldo13, LDO13),
MATCH(ldo14, LDO14),
MATCH(ldo15, LDO15),
MATCH(ldo16, LDO16),
MATCH(ldo17, LDO17),
MATCH(ldo18, LDO18),
MATCH(ldo19, LDO19),
MATCH(ldo20, LDO20),
MATCH(out5v, OUT5V),
MATCH(out33v, OUT33V),
MATCH(bbat, BBAT),
MATCH(sdby, SDBY),
MATCH(vrtc, VRTC),
};
static int max8907_regulator_parse_dt(struct platform_device *pdev)
{
struct device_node *np, *regulators;
int ret;
np = pdev->dev.parent->of_node;
if (!np)
return 0;
regulators = of_get_child_by_name(np, "regulators");
if (!regulators) {
dev_err(&pdev->dev, "regulators node not found\n");
return -EINVAL;
}
ret = of_regulator_match(&pdev->dev, regulators, max8907_matches,
ARRAY_SIZE(max8907_matches));
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);
return ret;
}
return 0;
}
static inline struct regulator_init_data *match_init_data(int index)
{
return max8907_matches[index].init_data;
}
static inline struct device_node *match_of_node(int index)
{
return max8907_matches[index].of_node;
}
#else
static int max8907_regulator_parse_dt(struct platform_device *pdev)
{
return 0;
}
static inline struct regulator_init_data *match_init_data(int index)
{
return NULL;
}
static inline struct device_node *match_of_node(int index)
{
return NULL;
}
#endif
static int max8907_regulator_probe(struct platform_device *pdev)
{
struct max8907 *max8907 = dev_get_drvdata(pdev->dev.parent);
struct max8907_platform_data *pdata = dev_get_platdata(max8907->dev);
int ret;
struct max8907_regulator *pmic;
unsigned int val;
int i;
struct regulator_config config = {};
struct regulator_init_data *idata;
const char *mbatt_rail_name = NULL;
ret = max8907_regulator_parse_dt(pdev);
if (ret)
return ret;
pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
platform_set_drvdata(pdev, pmic);
memcpy(pmic->desc, max8907_regulators, sizeof(pmic->desc));
/* Backwards compatibility with MAX8907B; SD1 uses different voltages */
ret = regmap_read(max8907->regmap_gen, MAX8907_REG_II2RR, &val);
if (ret)
return ret;
if ((val & MAX8907_II2RR_VERSION_MASK) ==
MAX8907_II2RR_VERSION_REV_B) {
pmic->desc[MAX8907_SD1].min_uV = 637500;
pmic->desc[MAX8907_SD1].uV_step = 12500;
pmic->desc[MAX8907_SD1].n_voltages =
(1425000 - 637500) / 12500 + 1;
}
for (i = 0; i < MAX8907_NUM_REGULATORS; i++) {
struct regulator_dev *rdev;
config.dev = pdev->dev.parent;
if (pdata)
idata = pdata->init_data[i];
else
idata = match_init_data(i);
config.init_data = idata;
config.driver_data = pmic;
config.regmap = max8907->regmap_gen;
config.of_node = match_of_node(i);
switch (pmic->desc[i].id) {
case MAX8907_MBATT:
if (idata && idata->constraints.name)
mbatt_rail_name = idata->constraints.name;
else
mbatt_rail_name = pmic->desc[i].name;
break;
case MAX8907_BBAT:
case MAX8907_SDBY:
case MAX8907_VRTC:
idata->supply_regulator = mbatt_rail_name;
break;
}
if (pmic->desc[i].ops == &max8907_ldo_ops) {
ret = regmap_read(config.regmap, pmic->desc[i].enable_reg,
&val);
if (ret)
return ret;
if ((val & MAX8907_MASK_LDO_SEQ) !=
MAX8907_MASK_LDO_SEQ)
pmic->desc[i].ops = &max8907_ldo_hwctl_ops;
} else if (pmic->desc[i].ops == &max8907_out5v_ops) {
ret = regmap_read(config.regmap, pmic->desc[i].enable_reg,
&val);
if (ret)
return ret;
if ((val & (MAX8907_MASK_OUT5V_VINEN |
MAX8907_MASK_OUT5V_ENSRC)) !=
MAX8907_MASK_OUT5V_ENSRC)
pmic->desc[i].ops = &max8907_out5v_hwctl_ops;
}
rdev = devm_regulator_register(&pdev->dev,
&pmic->desc[i], &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev,
"failed to register %s regulator\n",
pmic->desc[i].name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver max8907_regulator_driver = {
.driver = {
.name = "max8907-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max8907_regulator_probe,
};
static int __init max8907_regulator_init(void)
{
return platform_driver_register(&max8907_regulator_driver);
}
subsys_initcall(max8907_regulator_init);
static void __exit max8907_reg_exit(void)
{
platform_driver_unregister(&max8907_regulator_driver);
}
module_exit(max8907_reg_exit);
MODULE_DESCRIPTION("MAX8907 regulator driver");
MODULE_AUTHOR("Gyungoh Yoo <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:max8907-regulator");
| linux-master | drivers/regulator/max8907-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2017, 2019-2020, The Linux Foundation. All rights reserved.
// Copyright (c) 2023, Linaro Limited
#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#define REFGEN_REG_BIAS_EN 0x08
#define REFGEN_BIAS_EN_MASK GENMASK(2, 0)
#define REFGEN_BIAS_EN_ENABLE 0x7
#define REFGEN_BIAS_EN_DISABLE 0x6
#define REFGEN_REG_BG_CTRL 0x14
#define REFGEN_BG_CTRL_MASK GENMASK(2, 1)
#define REFGEN_BG_CTRL_ENABLE 0x3
#define REFGEN_BG_CTRL_DISABLE 0x2
#define REFGEN_REG_PWRDWN_CTRL5 0x80
#define REFGEN_PWRDWN_CTRL5_MASK BIT(0)
#define REFGEN_PWRDWN_CTRL5_ENABLE 0x1
static int qcom_sdm845_refgen_enable(struct regulator_dev *rdev)
{
regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_ENABLE));
regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_ENABLE));
return 0;
}
static int qcom_sdm845_refgen_disable(struct regulator_dev *rdev)
{
regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_DISABLE));
regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_DISABLE));
return 0;
}
static int qcom_sdm845_refgen_is_enabled(struct regulator_dev *rdev)
{
u32 val;
regmap_read(rdev->regmap, REFGEN_REG_BG_CTRL, &val);
if (FIELD_GET(REFGEN_BG_CTRL_MASK, val) != REFGEN_BG_CTRL_ENABLE)
return 0;
regmap_read(rdev->regmap, REFGEN_REG_BIAS_EN, &val);
if (FIELD_GET(REFGEN_BIAS_EN_MASK, val) != REFGEN_BIAS_EN_ENABLE)
return 0;
return 1;
}
static struct regulator_desc sdm845_refgen_desc = {
.enable_time = 5,
.name = "refgen",
.owner = THIS_MODULE,
.type = REGULATOR_VOLTAGE,
.ops = &(const struct regulator_ops) {
.enable = qcom_sdm845_refgen_enable,
.disable = qcom_sdm845_refgen_disable,
.is_enabled = qcom_sdm845_refgen_is_enabled,
},
};
static struct regulator_desc sm8250_refgen_desc = {
.enable_reg = REFGEN_REG_PWRDWN_CTRL5,
.enable_mask = REFGEN_PWRDWN_CTRL5_MASK,
.enable_val = REFGEN_PWRDWN_CTRL5_ENABLE,
.disable_val = 0,
.enable_time = 5,
.name = "refgen",
.owner = THIS_MODULE,
.type = REGULATOR_VOLTAGE,
.ops = &(const struct regulator_ops) {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
},
};
static const struct regmap_config qcom_refgen_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.fast_io = true,
};
static int qcom_refgen_probe(struct platform_device *pdev)
{
struct regulator_init_data *init_data;
struct regulator_config config = {};
const struct regulator_desc *rdesc;
struct device *dev = &pdev->dev;
struct regulator_dev *rdev;
struct regmap *regmap;
void __iomem *base;
rdesc = of_device_get_match_data(dev);
if (!rdesc)
return -ENODATA;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
regmap = devm_regmap_init_mmio(dev, base, &qcom_refgen_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
init_data = of_get_regulator_init_data(dev, dev->of_node, rdesc);
if (!init_data)
return -ENOMEM;
config.dev = dev;
config.init_data = init_data;
config.of_node = dev->of_node;
config.regmap = regmap;
rdev = devm_regulator_register(dev, rdesc, &config);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
return 0;
}
static const struct of_device_id qcom_refgen_match_table[] = {
{ .compatible = "qcom,sdm845-refgen-regulator", .data = &sdm845_refgen_desc },
{ .compatible = "qcom,sm8250-refgen-regulator", .data = &sm8250_refgen_desc },
{ }
};
static struct platform_driver qcom_refgen_driver = {
.probe = qcom_refgen_probe,
.driver = {
.name = "qcom-refgen-regulator",
.of_match_table = qcom_refgen_match_table,
},
};
module_platform_driver(qcom_refgen_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Qualcomm REFGEN regulator driver");
| linux-master | drivers/regulator/qcom-refgen-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2023 Axis Communications AB
*
* Driver for Texas Instruments TPS6287x PMIC.
* Datasheet: https://www.ti.com/lit/ds/symlink/tps62873.pdf
*/
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/driver.h>
#include <linux/bitfield.h>
#include <linux/linear_range.h>
#define TPS6287X_VSET 0x00
#define TPS6287X_CTRL1 0x01
#define TPS6287X_CTRL1_VRAMP GENMASK(1, 0)
#define TPS6287X_CTRL1_FPWMEN BIT(4)
#define TPS6287X_CTRL1_SWEN BIT(5)
#define TPS6287X_CTRL2 0x02
#define TPS6287X_CTRL2_VRANGE GENMASK(3, 2)
#define TPS6287X_CTRL3 0x03
#define TPS6287X_STATUS 0x04
static const struct regmap_config tps6287x_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = TPS6287X_STATUS,
};
static const struct linear_range tps6287x_voltage_ranges[] = {
LINEAR_RANGE(400000, 0, 0xFF, 1250),
LINEAR_RANGE(400000, 0, 0xFF, 2500),
LINEAR_RANGE(400000, 0, 0xFF, 5000),
LINEAR_RANGE(800000, 0, 0xFF, 10000),
};
static const unsigned int tps6287x_voltage_range_sel[] = {
0x0, 0x1, 0x2, 0x3
};
static const unsigned int tps6287x_ramp_table[] = {
10000, 5000, 1250, 500
};
static int tps6287x_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
unsigned int val;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = 0;
break;
case REGULATOR_MODE_FAST:
val = TPS6287X_CTRL1_FPWMEN;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, TPS6287X_CTRL1,
TPS6287X_CTRL1_FPWMEN, val);
}
static unsigned int tps6287x_get_mode(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, TPS6287X_CTRL1, &val);
if (ret < 0)
return 0;
return (val & TPS6287X_CTRL1_FPWMEN) ? REGULATOR_MODE_FAST :
REGULATOR_MODE_NORMAL;
}
static unsigned int tps6287x_of_map_mode(unsigned int mode)
{
switch (mode) {
case REGULATOR_MODE_NORMAL:
case REGULATOR_MODE_FAST:
return mode;
default:
return REGULATOR_MODE_INVALID;
}
}
static const struct regulator_ops tps6287x_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = tps6287x_set_mode,
.get_mode = tps6287x_get_mode,
.is_enabled = regulator_is_enabled_regmap,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
};
static struct regulator_desc tps6287x_reg = {
.name = "tps6287x",
.owner = THIS_MODULE,
.ops = &tps6287x_regulator_ops,
.of_map_mode = tps6287x_of_map_mode,
.type = REGULATOR_VOLTAGE,
.enable_reg = TPS6287X_CTRL1,
.enable_mask = TPS6287X_CTRL1_SWEN,
.vsel_reg = TPS6287X_VSET,
.vsel_mask = 0xFF,
.vsel_range_reg = TPS6287X_CTRL2,
.vsel_range_mask = TPS6287X_CTRL2_VRANGE,
.ramp_reg = TPS6287X_CTRL1,
.ramp_mask = TPS6287X_CTRL1_VRAMP,
.ramp_delay_table = tps6287x_ramp_table,
.n_ramp_values = ARRAY_SIZE(tps6287x_ramp_table),
.n_voltages = 256 * ARRAY_SIZE(tps6287x_voltage_ranges),
.linear_ranges = tps6287x_voltage_ranges,
.n_linear_ranges = ARRAY_SIZE(tps6287x_voltage_ranges),
.linear_range_selectors_bitfield = tps6287x_voltage_range_sel,
};
static int tps6287x_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct regulator_config config = {};
struct regulator_dev *rdev;
config.regmap = devm_regmap_init_i2c(i2c, &tps6287x_regmap_config);
if (IS_ERR(config.regmap)) {
dev_err(dev, "Failed to init i2c\n");
return PTR_ERR(config.regmap);
}
config.dev = dev;
config.of_node = dev->of_node;
config.init_data = of_get_regulator_init_data(dev, dev->of_node,
&tps6287x_reg);
rdev = devm_regulator_register(dev, &tps6287x_reg, &config);
if (IS_ERR(rdev)) {
dev_err(dev, "Failed to register regulator\n");
return PTR_ERR(rdev);
}
dev_dbg(dev, "Probed regulator\n");
return 0;
}
static const struct of_device_id tps6287x_dt_ids[] = {
{ .compatible = "ti,tps62870", },
{ .compatible = "ti,tps62871", },
{ .compatible = "ti,tps62872", },
{ .compatible = "ti,tps62873", },
{ }
};
MODULE_DEVICE_TABLE(of, tps6287x_dt_ids);
static const struct i2c_device_id tps6287x_i2c_id[] = {
{ "tps62870", 0 },
{ "tps62871", 0 },
{ "tps62872", 0 },
{ "tps62873", 0 },
{},
};
MODULE_DEVICE_TABLE(i2c, tps6287x_i2c_id);
static struct i2c_driver tps6287x_regulator_driver = {
.driver = {
.name = "tps6287x",
.of_match_table = tps6287x_dt_ids,
},
.probe = tps6287x_i2c_probe,
.id_table = tps6287x_i2c_id,
};
module_i2c_driver(tps6287x_regulator_driver);
MODULE_AUTHOR("Mårten Lindahl <[email protected]>");
MODULE_DESCRIPTION("Regulator driver for TI TPS6287X PMIC");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/tps6287x-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// Copyright (c) 2019 Mantas Pucka <[email protected]>
// Copyright (c) 2019 Robert Marko <[email protected]>
//
// Driver for IPQ4019 SD/MMC controller's I/O LDO voltage regulator
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
static const unsigned int ipq4019_vmmc_voltages[] = {
1500000, 1800000, 2500000, 3000000,
};
static const struct regulator_ops ipq4019_regulator_voltage_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_desc vmmc_regulator = {
.name = "vmmcq",
.ops = &ipq4019_regulator_voltage_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.volt_table = ipq4019_vmmc_voltages,
.n_voltages = ARRAY_SIZE(ipq4019_vmmc_voltages),
.vsel_reg = 0,
.vsel_mask = 0x3,
};
static const struct regmap_config ipq4019_vmmcq_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
};
static int ipq4019_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct regulator_init_data *init_data;
struct regulator_config cfg = {};
struct regulator_dev *rdev;
struct regmap *rmap;
void __iomem *base;
init_data = of_get_regulator_init_data(dev, dev->of_node,
&vmmc_regulator);
if (!init_data)
return -EINVAL;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
rmap = devm_regmap_init_mmio(dev, base, &ipq4019_vmmcq_regmap_config);
if (IS_ERR(rmap))
return PTR_ERR(rmap);
cfg.dev = dev;
cfg.init_data = init_data;
cfg.of_node = dev->of_node;
cfg.regmap = rmap;
rdev = devm_regulator_register(dev, &vmmc_regulator, &cfg);
if (IS_ERR(rdev)) {
dev_err(dev, "Failed to register regulator: %ld\n",
PTR_ERR(rdev));
return PTR_ERR(rdev);
}
platform_set_drvdata(pdev, rdev);
return 0;
}
static const struct of_device_id regulator_ipq4019_of_match[] = {
{ .compatible = "qcom,vqmmc-ipq4019-regulator", },
{},
};
static struct platform_driver ipq4019_regulator_driver = {
.probe = ipq4019_regulator_probe,
.driver = {
.name = "vqmmc-ipq4019-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(regulator_ipq4019_of_match),
},
};
module_platform_driver(ipq4019_regulator_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mantas Pucka <[email protected]>");
MODULE_DESCRIPTION("IPQ4019 VQMMC voltage regulator");
| linux-master | drivers/regulator/vqmmc-ipq4019-regulator.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) STMicroelectronics 2019
// Authors: Gabriel Fernandez <[email protected]>
// Pascal Paillet <[email protected]>.
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
/*
* Registers description
*/
#define REG_PWR_CR3 0x0C
#define USB_3_3_EN BIT(24)
#define USB_3_3_RDY BIT(26)
#define REG_1_8_EN BIT(28)
#define REG_1_8_RDY BIT(29)
#define REG_1_1_EN BIT(30)
#define REG_1_1_RDY BIT(31)
/* list of supported regulators */
enum {
PWR_REG11,
PWR_REG18,
PWR_USB33,
STM32PWR_REG_NUM_REGS
};
static u32 ready_mask_table[STM32PWR_REG_NUM_REGS] = {
[PWR_REG11] = REG_1_1_RDY,
[PWR_REG18] = REG_1_8_RDY,
[PWR_USB33] = USB_3_3_RDY,
};
struct stm32_pwr_reg {
void __iomem *base;
u32 ready_mask;
};
static int stm32_pwr_reg_is_ready(struct regulator_dev *rdev)
{
struct stm32_pwr_reg *priv = rdev_get_drvdata(rdev);
u32 val;
val = readl_relaxed(priv->base + REG_PWR_CR3);
return (val & priv->ready_mask);
}
static int stm32_pwr_reg_is_enabled(struct regulator_dev *rdev)
{
struct stm32_pwr_reg *priv = rdev_get_drvdata(rdev);
u32 val;
val = readl_relaxed(priv->base + REG_PWR_CR3);
return (val & rdev->desc->enable_mask);
}
static int stm32_pwr_reg_enable(struct regulator_dev *rdev)
{
struct stm32_pwr_reg *priv = rdev_get_drvdata(rdev);
int ret;
u32 val;
val = readl_relaxed(priv->base + REG_PWR_CR3);
val |= rdev->desc->enable_mask;
writel_relaxed(val, priv->base + REG_PWR_CR3);
/* use an arbitrary timeout of 20ms */
ret = readx_poll_timeout(stm32_pwr_reg_is_ready, rdev, val, val,
100, 20 * 1000);
if (ret)
dev_err(&rdev->dev, "regulator enable timed out!\n");
return ret;
}
static int stm32_pwr_reg_disable(struct regulator_dev *rdev)
{
struct stm32_pwr_reg *priv = rdev_get_drvdata(rdev);
int ret;
u32 val;
val = readl_relaxed(priv->base + REG_PWR_CR3);
val &= ~rdev->desc->enable_mask;
writel_relaxed(val, priv->base + REG_PWR_CR3);
/* use an arbitrary timeout of 20ms */
ret = readx_poll_timeout(stm32_pwr_reg_is_enabled, rdev, val, !val,
100, 20 * 1000);
if (ret)
dev_err(&rdev->dev, "regulator disable timed out!\n");
return ret;
}
static const struct regulator_ops stm32_pwr_reg_ops = {
.enable = stm32_pwr_reg_enable,
.disable = stm32_pwr_reg_disable,
.is_enabled = stm32_pwr_reg_is_enabled,
};
#define PWR_REG(_id, _name, _volt, _en, _supply) \
[_id] = { \
.id = _id, \
.name = _name, \
.of_match = of_match_ptr(_name), \
.n_voltages = 1, \
.type = REGULATOR_VOLTAGE, \
.fixed_uV = _volt, \
.ops = &stm32_pwr_reg_ops, \
.enable_mask = _en, \
.owner = THIS_MODULE, \
.supply_name = _supply, \
} \
static const struct regulator_desc stm32_pwr_desc[] = {
PWR_REG(PWR_REG11, "reg11", 1100000, REG_1_1_EN, "vdd"),
PWR_REG(PWR_REG18, "reg18", 1800000, REG_1_8_EN, "vdd"),
PWR_REG(PWR_USB33, "usb33", 3300000, USB_3_3_EN, "vdd_3v3_usbfs"),
};
static int stm32_pwr_regulator_probe(struct platform_device *pdev)
{
struct stm32_pwr_reg *priv;
void __iomem *base;
struct regulator_dev *rdev;
struct regulator_config config = { };
int i, ret = 0;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base)) {
dev_err(&pdev->dev, "Unable to map IO memory\n");
return PTR_ERR(base);
}
config.dev = &pdev->dev;
for (i = 0; i < STM32PWR_REG_NUM_REGS; i++) {
priv = devm_kzalloc(&pdev->dev, sizeof(struct stm32_pwr_reg),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->base = base;
priv->ready_mask = ready_mask_table[i];
config.driver_data = priv;
rdev = devm_regulator_register(&pdev->dev,
&stm32_pwr_desc[i],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&pdev->dev,
"Failed to register regulator: %d\n", ret);
break;
}
}
return ret;
}
static const struct of_device_id __maybe_unused stm32_pwr_of_match[] = {
{ .compatible = "st,stm32mp1,pwr-reg", },
{},
};
MODULE_DEVICE_TABLE(of, stm32_pwr_of_match);
static struct platform_driver stm32_pwr_driver = {
.probe = stm32_pwr_regulator_probe,
.driver = {
.name = "stm32-pwr-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(stm32_pwr_of_match),
},
};
module_platform_driver(stm32_pwr_driver);
MODULE_DESCRIPTION("STM32MP1 PWR voltage regulator driver");
MODULE_AUTHOR("Pascal Paillet <[email protected]>");
| linux-master | drivers/regulator/stm32-pwr.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2020 MediaTek Inc.
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/soc/mediatek/mtk_dvfsrc.h>
#define DVFSRC_ID_VCORE 0
#define DVFSRC_ID_VSCP 1
#define MT_DVFSRC_REGULAR(match, _name, _volt_table) \
[DVFSRC_ID_##_name] = { \
.desc = { \
.name = match, \
.of_match = of_match_ptr(match), \
.ops = &dvfsrc_vcore_ops, \
.type = REGULATOR_VOLTAGE, \
.id = DVFSRC_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(_volt_table), \
.volt_table = _volt_table, \
}, \
}
/*
* DVFSRC regulators' information
*
* @desc: standard fields of regulator description.
* @voltage_selector: Selector used for get_voltage_sel() and
* set_voltage_sel() callbacks
*/
struct dvfsrc_regulator {
struct regulator_desc desc;
};
/*
* MTK DVFSRC regulators' init data
*
* @size: num of regulators
* @regulator_info: regulator info.
*/
struct dvfsrc_regulator_init_data {
u32 size;
struct dvfsrc_regulator *regulator_info;
};
static inline struct device *to_dvfsrc_dev(struct regulator_dev *rdev)
{
return rdev_get_dev(rdev)->parent;
}
static int dvfsrc_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct device *dvfsrc_dev = to_dvfsrc_dev(rdev);
int id = rdev_get_id(rdev);
if (id == DVFSRC_ID_VCORE)
mtk_dvfsrc_send_request(dvfsrc_dev,
MTK_DVFSRC_CMD_VCORE_REQUEST,
selector);
else if (id == DVFSRC_ID_VSCP)
mtk_dvfsrc_send_request(dvfsrc_dev,
MTK_DVFSRC_CMD_VSCP_REQUEST,
selector);
else
return -EINVAL;
return 0;
}
static int dvfsrc_get_voltage_sel(struct regulator_dev *rdev)
{
struct device *dvfsrc_dev = to_dvfsrc_dev(rdev);
int id = rdev_get_id(rdev);
int val, ret;
if (id == DVFSRC_ID_VCORE)
ret = mtk_dvfsrc_query_info(dvfsrc_dev,
MTK_DVFSRC_CMD_VCORE_LEVEL_QUERY,
&val);
else if (id == DVFSRC_ID_VSCP)
ret = mtk_dvfsrc_query_info(dvfsrc_dev,
MTK_DVFSRC_CMD_VSCP_LEVEL_QUERY,
&val);
else
return -EINVAL;
if (ret != 0)
return ret;
return val;
}
static const struct regulator_ops dvfsrc_vcore_ops = {
.list_voltage = regulator_list_voltage_table,
.get_voltage_sel = dvfsrc_get_voltage_sel,
.set_voltage_sel = dvfsrc_set_voltage_sel,
};
static const unsigned int mt8183_voltages[] = {
725000,
800000,
};
static struct dvfsrc_regulator mt8183_regulators[] = {
MT_DVFSRC_REGULAR("dvfsrc-vcore", VCORE,
mt8183_voltages),
};
static const struct dvfsrc_regulator_init_data regulator_mt8183_data = {
.size = ARRAY_SIZE(mt8183_regulators),
.regulator_info = &mt8183_regulators[0],
};
static const unsigned int mt6873_voltages[] = {
575000,
600000,
650000,
725000,
};
static struct dvfsrc_regulator mt6873_regulators[] = {
MT_DVFSRC_REGULAR("dvfsrc-vcore", VCORE,
mt6873_voltages),
MT_DVFSRC_REGULAR("dvfsrc-vscp", VSCP,
mt6873_voltages),
};
static const struct dvfsrc_regulator_init_data regulator_mt6873_data = {
.size = ARRAY_SIZE(mt6873_regulators),
.regulator_info = &mt6873_regulators[0],
};
static const struct of_device_id mtk_dvfsrc_regulator_match[] = {
{
.compatible = "mediatek,mt8183-dvfsrc",
.data = ®ulator_mt8183_data,
}, {
.compatible = "mediatek,mt8192-dvfsrc",
.data = ®ulator_mt6873_data,
}, {
.compatible = "mediatek,mt6873-dvfsrc",
.data = ®ulator_mt6873_data,
}, {
/* sentinel */
},
};
MODULE_DEVICE_TABLE(of, mtk_dvfsrc_regulator_match);
static int dvfsrc_vcore_regulator_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct device *dev = &pdev->dev;
struct regulator_config config = { };
struct regulator_dev *rdev;
const struct dvfsrc_regulator_init_data *regulator_init_data;
struct dvfsrc_regulator *mt_regulators;
int i;
match = of_match_node(mtk_dvfsrc_regulator_match, dev->parent->of_node);
if (!match) {
dev_err(dev, "invalid compatible string\n");
return -ENODEV;
}
regulator_init_data = match->data;
mt_regulators = regulator_init_data->regulator_info;
for (i = 0; i < regulator_init_data->size; i++) {
config.dev = dev->parent;
config.driver_data = (mt_regulators + i);
rdev = devm_regulator_register(dev, &(mt_regulators + i)->desc,
&config);
if (IS_ERR(rdev)) {
dev_err(dev, "failed to register %s\n",
(mt_regulators + i)->desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver mtk_dvfsrc_regulator_driver = {
.driver = {
.name = "mtk-dvfsrc-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = dvfsrc_vcore_regulator_probe,
};
static int __init mtk_dvfsrc_regulator_init(void)
{
return platform_driver_register(&mtk_dvfsrc_regulator_driver);
}
subsys_initcall(mtk_dvfsrc_regulator_init);
static void __exit mtk_dvfsrc_regulator_exit(void)
{
platform_driver_unregister(&mtk_dvfsrc_regulator_driver);
}
module_exit(mtk_dvfsrc_regulator_exit);
MODULE_AUTHOR("Arvin wang <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/mtk-dvfsrc-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// MCP16502 PMIC driver
//
// Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries
//
// Author: Andrei Stefanescu <[email protected]>
//
// Inspired from tps65086-regulator.c
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/suspend.h>
#include <linux/gpio/consumer.h>
#define VDD_LOW_SEL 0x0D
#define VDD_HIGH_SEL 0x3F
#define MCP16502_FLT BIT(7)
#define MCP16502_DVSR GENMASK(3, 2)
#define MCP16502_ENS BIT(0)
/*
* The PMIC has four sets of registers corresponding to four power modes:
* Performance, Active, Low-power, Hibernate.
*
* Registers:
* Each regulator has a register for each power mode. To access a register
* for a specific regulator and mode BASE_* and OFFSET_* need to be added.
*
* Operating modes:
* In order for the PMIC to transition to operating modes it has to be
* controlled via GPIO lines called LPM and HPM.
*
* The registers are fully configurable such that you can put all regulators in
* a low-power state while the PMIC is in Active mode. They are supposed to be
* configured at startup and then simply transition to/from a global low-power
* state by setting the GPIO lpm pin high/low.
*
* This driver keeps the PMIC in Active mode, Low-power state is set for the
* regulators by enabling/disabling operating mode (FPWM or Auto PFM).
*
* The PMIC's Low-power and Hibernate modes are used during standby/suspend.
* To enter standby/suspend the PMIC will go to Low-power mode. From there, it
* will transition to Hibernate when the PWRHLD line is set to low by the MPU.
*/
/*
* This function is useful for iterating over all regulators and accessing their
* registers in a generic way or accessing a regulator device by its id.
*/
#define MCP16502_REG_BASE(i, r) ((((i) + 1) << 4) + MCP16502_REG_##r)
#define MCP16502_STAT_BASE(i) ((i) + 5)
#define MCP16502_OPMODE_ACTIVE REGULATOR_MODE_NORMAL
#define MCP16502_OPMODE_LPM REGULATOR_MODE_IDLE
#define MCP16502_OPMODE_HIB REGULATOR_MODE_STANDBY
#define MCP16502_MODE_AUTO_PFM 0
#define MCP16502_MODE_FPWM BIT(6)
#define MCP16502_VSEL 0x3F
#define MCP16502_EN BIT(7)
#define MCP16502_MODE BIT(6)
#define MCP16502_MIN_REG 0x0
#define MCP16502_MAX_REG 0x65
/**
* enum mcp16502_reg - MCP16502 regulators's registers
* @MCP16502_REG_A: active state register
* @MCP16502_REG_LPM: low power mode state register
* @MCP16502_REG_HIB: hibernate state register
* @MCP16502_REG_HPM: high-performance mode register
* @MCP16502_REG_SEQ: startup sequence register
* @MCP16502_REG_CFG: configuration register
*/
enum mcp16502_reg {
MCP16502_REG_A,
MCP16502_REG_LPM,
MCP16502_REG_HIB,
MCP16502_REG_HPM,
MCP16502_REG_SEQ,
MCP16502_REG_CFG,
};
/* Ramp delay (uV/us) for buck1, ldo1, ldo2. */
static const unsigned int mcp16502_ramp_b1l12[] = {
6250, 3125, 2083, 1563
};
/* Ramp delay (uV/us) for buck2, buck3, buck4. */
static const unsigned int mcp16502_ramp_b234[] = {
3125, 1563, 1042, 781
};
static unsigned int mcp16502_of_map_mode(unsigned int mode)
{
if (mode == REGULATOR_MODE_NORMAL || mode == REGULATOR_MODE_IDLE)
return mode;
return REGULATOR_MODE_INVALID;
}
#define MCP16502_REGULATOR(_name, _id, _ranges, _ops, _ramp_table) \
[_id] = { \
.name = _name, \
.regulators_node = "regulators", \
.id = _id, \
.ops = &(_ops), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.n_voltages = MCP16502_VSEL + 1, \
.linear_ranges = _ranges, \
.linear_min_sel = VDD_LOW_SEL, \
.n_linear_ranges = ARRAY_SIZE(_ranges), \
.of_match = _name, \
.of_map_mode = mcp16502_of_map_mode, \
.vsel_reg = (((_id) + 1) << 4), \
.vsel_mask = MCP16502_VSEL, \
.enable_reg = (((_id) + 1) << 4), \
.enable_mask = MCP16502_EN, \
.ramp_reg = MCP16502_REG_BASE(_id, CFG), \
.ramp_mask = MCP16502_DVSR, \
.ramp_delay_table = _ramp_table, \
.n_ramp_values = ARRAY_SIZE(_ramp_table), \
}
enum {
BUCK1 = 0,
BUCK2,
BUCK3,
BUCK4,
LDO1,
LDO2,
NUM_REGULATORS
};
/*
* struct mcp16502 - PMIC representation
* @lpm: LPM GPIO descriptor
*/
struct mcp16502 {
struct gpio_desc *lpm;
};
/*
* mcp16502_gpio_set_mode() - set the GPIO corresponding value
*
* Used to prepare transitioning into hibernate or resuming from it.
*/
static void mcp16502_gpio_set_mode(struct mcp16502 *mcp, int mode)
{
switch (mode) {
case MCP16502_OPMODE_ACTIVE:
gpiod_set_value(mcp->lpm, 0);
break;
case MCP16502_OPMODE_LPM:
case MCP16502_OPMODE_HIB:
gpiod_set_value(mcp->lpm, 1);
break;
default:
pr_err("%s: %d invalid\n", __func__, mode);
}
}
/*
* mcp16502_get_reg() - get the PMIC's state configuration register for opmode
*
* @rdev: the regulator whose register we are searching
* @opmode: the PMIC's operating mode ACTIVE, Low-power, Hibernate
*/
static int mcp16502_get_state_reg(struct regulator_dev *rdev, int opmode)
{
switch (opmode) {
case MCP16502_OPMODE_ACTIVE:
return MCP16502_REG_BASE(rdev_get_id(rdev), A);
case MCP16502_OPMODE_LPM:
return MCP16502_REG_BASE(rdev_get_id(rdev), LPM);
case MCP16502_OPMODE_HIB:
return MCP16502_REG_BASE(rdev_get_id(rdev), HIB);
default:
return -EINVAL;
}
}
/*
* mcp16502_get_mode() - return the current operating mode of a regulator
*
* Note: all functions that are not part of entering/exiting standby/suspend
* use the Active mode registers.
*
* Note: this is different from the PMIC's operatig mode, it is the
* MODE bit from the regulator's register.
*/
static unsigned int mcp16502_get_mode(struct regulator_dev *rdev)
{
unsigned int val;
int ret, reg;
reg = mcp16502_get_state_reg(rdev, MCP16502_OPMODE_ACTIVE);
if (reg < 0)
return reg;
ret = regmap_read(rdev->regmap, reg, &val);
if (ret)
return ret;
switch (val & MCP16502_MODE) {
case MCP16502_MODE_FPWM:
return REGULATOR_MODE_NORMAL;
case MCP16502_MODE_AUTO_PFM:
return REGULATOR_MODE_IDLE;
default:
return REGULATOR_MODE_INVALID;
}
}
/*
* _mcp16502_set_mode() - helper for set_mode and set_suspend_mode
*
* @rdev: the regulator for which we are setting the mode
* @mode: the regulator's mode (the one from MODE bit)
* @opmode: the PMIC's operating mode: Active/Low-power/Hibernate
*/
static int _mcp16502_set_mode(struct regulator_dev *rdev, unsigned int mode,
unsigned int op_mode)
{
int val;
int reg;
reg = mcp16502_get_state_reg(rdev, op_mode);
if (reg < 0)
return reg;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = MCP16502_MODE_FPWM;
break;
case REGULATOR_MODE_IDLE:
val = MCP16502_MODE_AUTO_PFM;
break;
default:
return -EINVAL;
}
reg = regmap_update_bits(rdev->regmap, reg, MCP16502_MODE, val);
return reg;
}
/*
* mcp16502_set_mode() - regulator_ops set_mode
*/
static int mcp16502_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
return _mcp16502_set_mode(rdev, mode, MCP16502_OPMODE_ACTIVE);
}
/*
* mcp16502_get_status() - regulator_ops get_status
*/
static int mcp16502_get_status(struct regulator_dev *rdev)
{
int ret;
unsigned int val;
ret = regmap_read(rdev->regmap, MCP16502_STAT_BASE(rdev_get_id(rdev)),
&val);
if (ret)
return ret;
if (val & MCP16502_FLT)
return REGULATOR_STATUS_ERROR;
else if (val & MCP16502_ENS)
return REGULATOR_STATUS_ON;
else if (!(val & MCP16502_ENS))
return REGULATOR_STATUS_OFF;
return REGULATOR_STATUS_UNDEFINED;
}
static int mcp16502_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_sel,
unsigned int new_sel)
{
static const u8 us_ramp[] = { 8, 16, 24, 32 };
int id = rdev_get_id(rdev);
unsigned int uV_delta, val;
int ret;
ret = regmap_read(rdev->regmap, MCP16502_REG_BASE(id, CFG), &val);
if (ret)
return ret;
val = (val & MCP16502_DVSR) >> 2;
uV_delta = abs(new_sel * rdev->desc->linear_ranges->step -
old_sel * rdev->desc->linear_ranges->step);
switch (id) {
case BUCK1:
case LDO1:
case LDO2:
ret = DIV_ROUND_CLOSEST(uV_delta * us_ramp[val],
mcp16502_ramp_b1l12[val]);
break;
case BUCK2:
case BUCK3:
case BUCK4:
ret = DIV_ROUND_CLOSEST(uV_delta * us_ramp[val],
mcp16502_ramp_b234[val]);
break;
default:
return -EINVAL;
}
return ret;
}
#ifdef CONFIG_SUSPEND
/*
* mcp16502_suspend_get_target_reg() - get the reg of the target suspend PMIC
* mode
*/
static int mcp16502_suspend_get_target_reg(struct regulator_dev *rdev)
{
switch (pm_suspend_target_state) {
case PM_SUSPEND_STANDBY:
return mcp16502_get_state_reg(rdev, MCP16502_OPMODE_LPM);
case PM_SUSPEND_ON:
case PM_SUSPEND_MEM:
return mcp16502_get_state_reg(rdev, MCP16502_OPMODE_HIB);
default:
dev_err(&rdev->dev, "invalid suspend target: %d\n",
pm_suspend_target_state);
}
return -EINVAL;
}
/*
* mcp16502_set_suspend_voltage() - regulator_ops set_suspend_voltage
*/
static int mcp16502_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
int sel = regulator_map_voltage_linear_range(rdev, uV, uV);
int reg = mcp16502_suspend_get_target_reg(rdev);
if (sel < 0)
return sel;
if (reg < 0)
return reg;
return regmap_update_bits(rdev->regmap, reg, MCP16502_VSEL, sel);
}
/*
* mcp16502_set_suspend_mode() - regulator_ops set_suspend_mode
*/
static int mcp16502_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
switch (pm_suspend_target_state) {
case PM_SUSPEND_STANDBY:
return _mcp16502_set_mode(rdev, mode, MCP16502_OPMODE_LPM);
case PM_SUSPEND_ON:
case PM_SUSPEND_MEM:
return _mcp16502_set_mode(rdev, mode, MCP16502_OPMODE_HIB);
default:
dev_err(&rdev->dev, "invalid suspend target: %d\n",
pm_suspend_target_state);
}
return -EINVAL;
}
/*
* mcp16502_set_suspend_enable() - regulator_ops set_suspend_enable
*/
static int mcp16502_set_suspend_enable(struct regulator_dev *rdev)
{
int reg = mcp16502_suspend_get_target_reg(rdev);
if (reg < 0)
return reg;
return regmap_update_bits(rdev->regmap, reg, MCP16502_EN, MCP16502_EN);
}
/*
* mcp16502_set_suspend_disable() - regulator_ops set_suspend_disable
*/
static int mcp16502_set_suspend_disable(struct regulator_dev *rdev)
{
int reg = mcp16502_suspend_get_target_reg(rdev);
if (reg < 0)
return reg;
return regmap_update_bits(rdev->regmap, reg, MCP16502_EN, 0);
}
#endif /* CONFIG_SUSPEND */
static const struct regulator_ops mcp16502_buck_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mcp16502_get_status,
.set_voltage_time_sel = mcp16502_set_voltage_time_sel,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_mode = mcp16502_set_mode,
.get_mode = mcp16502_get_mode,
#ifdef CONFIG_SUSPEND
.set_suspend_voltage = mcp16502_set_suspend_voltage,
.set_suspend_mode = mcp16502_set_suspend_mode,
.set_suspend_enable = mcp16502_set_suspend_enable,
.set_suspend_disable = mcp16502_set_suspend_disable,
#endif /* CONFIG_SUSPEND */
};
/*
* LDOs cannot change operating modes.
*/
static const struct regulator_ops mcp16502_ldo_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mcp16502_get_status,
.set_voltage_time_sel = mcp16502_set_voltage_time_sel,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
#ifdef CONFIG_SUSPEND
.set_suspend_voltage = mcp16502_set_suspend_voltage,
.set_suspend_enable = mcp16502_set_suspend_enable,
.set_suspend_disable = mcp16502_set_suspend_disable,
#endif /* CONFIG_SUSPEND */
};
static const struct of_device_id mcp16502_ids[] = {
{ .compatible = "microchip,mcp16502", },
{}
};
MODULE_DEVICE_TABLE(of, mcp16502_ids);
static const struct linear_range b1l12_ranges[] = {
REGULATOR_LINEAR_RANGE(1200000, VDD_LOW_SEL, VDD_HIGH_SEL, 50000),
};
static const struct linear_range b234_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, VDD_LOW_SEL, VDD_HIGH_SEL, 25000),
};
static const struct regulator_desc mcp16502_desc[] = {
/* MCP16502_REGULATOR(_name, _id, ranges, regulator_ops, ramp_table) */
MCP16502_REGULATOR("VDD_IO", BUCK1, b1l12_ranges, mcp16502_buck_ops,
mcp16502_ramp_b1l12),
MCP16502_REGULATOR("VDD_DDR", BUCK2, b234_ranges, mcp16502_buck_ops,
mcp16502_ramp_b234),
MCP16502_REGULATOR("VDD_CORE", BUCK3, b234_ranges, mcp16502_buck_ops,
mcp16502_ramp_b234),
MCP16502_REGULATOR("VDD_OTHER", BUCK4, b234_ranges, mcp16502_buck_ops,
mcp16502_ramp_b234),
MCP16502_REGULATOR("LDO1", LDO1, b1l12_ranges, mcp16502_ldo_ops,
mcp16502_ramp_b1l12),
MCP16502_REGULATOR("LDO2", LDO2, b1l12_ranges, mcp16502_ldo_ops,
mcp16502_ramp_b1l12)
};
static const struct regmap_range mcp16502_ranges[] = {
regmap_reg_range(MCP16502_MIN_REG, MCP16502_MAX_REG)
};
static const struct regmap_access_table mcp16502_yes_reg_table = {
.yes_ranges = mcp16502_ranges,
.n_yes_ranges = ARRAY_SIZE(mcp16502_ranges),
};
static const struct regmap_config mcp16502_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MCP16502_MAX_REG,
.cache_type = REGCACHE_NONE,
.rd_table = &mcp16502_yes_reg_table,
.wr_table = &mcp16502_yes_reg_table,
};
static int mcp16502_probe(struct i2c_client *client)
{
struct regulator_config config = { };
struct regulator_dev *rdev;
struct device *dev;
struct mcp16502 *mcp;
struct regmap *rmap;
int i, ret;
dev = &client->dev;
config.dev = dev;
mcp = devm_kzalloc(dev, sizeof(*mcp), GFP_KERNEL);
if (!mcp)
return -ENOMEM;
rmap = devm_regmap_init_i2c(client, &mcp16502_regmap_config);
if (IS_ERR(rmap)) {
ret = PTR_ERR(rmap);
dev_err(dev, "regmap init failed: %d\n", ret);
return ret;
}
i2c_set_clientdata(client, mcp);
config.regmap = rmap;
config.driver_data = mcp;
mcp->lpm = devm_gpiod_get_optional(dev, "lpm", GPIOD_OUT_LOW);
if (IS_ERR(mcp->lpm)) {
dev_err(dev, "failed to get lpm pin: %ld\n", PTR_ERR(mcp->lpm));
return PTR_ERR(mcp->lpm);
}
for (i = 0; i < NUM_REGULATORS; i++) {
rdev = devm_regulator_register(dev, &mcp16502_desc[i], &config);
if (IS_ERR(rdev)) {
dev_err(dev,
"failed to register %s regulator %ld\n",
mcp16502_desc[i].name, PTR_ERR(rdev));
return PTR_ERR(rdev);
}
}
mcp16502_gpio_set_mode(mcp, MCP16502_OPMODE_ACTIVE);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int mcp16502_suspend_noirq(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct mcp16502 *mcp = i2c_get_clientdata(client);
mcp16502_gpio_set_mode(mcp, MCP16502_OPMODE_LPM);
return 0;
}
static int mcp16502_resume_noirq(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct mcp16502 *mcp = i2c_get_clientdata(client);
mcp16502_gpio_set_mode(mcp, MCP16502_OPMODE_ACTIVE);
return 0;
}
#endif
#ifdef CONFIG_PM
static const struct dev_pm_ops mcp16502_pm_ops = {
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mcp16502_suspend_noirq,
mcp16502_resume_noirq)
};
#endif
static const struct i2c_device_id mcp16502_i2c_id[] = {
{ "mcp16502", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, mcp16502_i2c_id);
static struct i2c_driver mcp16502_drv = {
.probe = mcp16502_probe,
.driver = {
.name = "mcp16502-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = mcp16502_ids,
#ifdef CONFIG_PM
.pm = &mcp16502_pm_ops,
#endif
},
.id_table = mcp16502_i2c_id,
};
module_i2c_driver(mcp16502_drv);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("MCP16502 PMIC driver");
MODULE_AUTHOR("Andrei Stefanescu [email protected]");
| linux-master | drivers/regulator/mcp16502.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) STMicroelectronics 2018
// Author: Pascal Paillet <[email protected]> for STMicroelectronics.
#include <linux/interrupt.h>
#include <linux/mfd/stpmic1.h>
#include <linux/module.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <dt-bindings/mfd/st,stpmic1.h>
/**
* struct stpmic1 regulator description: this structure is used as driver data
* @desc: regulator framework description
* @mask_reset_reg: mask reset register address
* @mask_reset_mask: mask rank and mask reset register mask
* @icc_reg: icc register address
* @icc_mask: icc register mask
*/
struct stpmic1_regulator_cfg {
struct regulator_desc desc;
u8 mask_reset_reg;
u8 mask_reset_mask;
u8 icc_reg;
u8 icc_mask;
};
static int stpmic1_set_mode(struct regulator_dev *rdev, unsigned int mode);
static unsigned int stpmic1_get_mode(struct regulator_dev *rdev);
static int stpmic1_set_icc(struct regulator_dev *rdev, int lim, int severity,
bool enable);
static unsigned int stpmic1_map_mode(unsigned int mode);
enum {
STPMIC1_BUCK1 = 0,
STPMIC1_BUCK2 = 1,
STPMIC1_BUCK3 = 2,
STPMIC1_BUCK4 = 3,
STPMIC1_LDO1 = 4,
STPMIC1_LDO2 = 5,
STPMIC1_LDO3 = 6,
STPMIC1_LDO4 = 7,
STPMIC1_LDO5 = 8,
STPMIC1_LDO6 = 9,
STPMIC1_VREF_DDR = 10,
STPMIC1_BOOST = 11,
STPMIC1_VBUS_OTG = 12,
STPMIC1_SW_OUT = 13,
};
/* Enable time worst case is 5000mV/(2250uV/uS) */
#define PMIC_ENABLE_TIME_US 2200
/* Ramp delay worst case is (2250uV/uS) */
#define PMIC_RAMP_DELAY 2200
static const struct linear_range buck1_ranges[] = {
REGULATOR_LINEAR_RANGE(725000, 0, 4, 0),
REGULATOR_LINEAR_RANGE(725000, 5, 36, 25000),
REGULATOR_LINEAR_RANGE(1500000, 37, 63, 0),
};
static const struct linear_range buck2_ranges[] = {
REGULATOR_LINEAR_RANGE(1000000, 0, 17, 0),
REGULATOR_LINEAR_RANGE(1050000, 18, 19, 0),
REGULATOR_LINEAR_RANGE(1100000, 20, 21, 0),
REGULATOR_LINEAR_RANGE(1150000, 22, 23, 0),
REGULATOR_LINEAR_RANGE(1200000, 24, 25, 0),
REGULATOR_LINEAR_RANGE(1250000, 26, 27, 0),
REGULATOR_LINEAR_RANGE(1300000, 28, 29, 0),
REGULATOR_LINEAR_RANGE(1350000, 30, 31, 0),
REGULATOR_LINEAR_RANGE(1400000, 32, 33, 0),
REGULATOR_LINEAR_RANGE(1450000, 34, 35, 0),
REGULATOR_LINEAR_RANGE(1500000, 36, 63, 0),
};
static const struct linear_range buck3_ranges[] = {
REGULATOR_LINEAR_RANGE(1000000, 0, 19, 0),
REGULATOR_LINEAR_RANGE(1100000, 20, 23, 0),
REGULATOR_LINEAR_RANGE(1200000, 24, 27, 0),
REGULATOR_LINEAR_RANGE(1300000, 28, 31, 0),
REGULATOR_LINEAR_RANGE(1400000, 32, 35, 0),
REGULATOR_LINEAR_RANGE(1500000, 36, 55, 100000),
REGULATOR_LINEAR_RANGE(3400000, 56, 63, 0),
};
static const struct linear_range buck4_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 27, 25000),
REGULATOR_LINEAR_RANGE(1300000, 28, 29, 0),
REGULATOR_LINEAR_RANGE(1350000, 30, 31, 0),
REGULATOR_LINEAR_RANGE(1400000, 32, 33, 0),
REGULATOR_LINEAR_RANGE(1450000, 34, 35, 0),
REGULATOR_LINEAR_RANGE(1500000, 36, 60, 100000),
REGULATOR_LINEAR_RANGE(3900000, 61, 63, 0),
};
static const struct linear_range ldo1_ranges[] = {
REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0),
};
static const struct linear_range ldo2_ranges[] = {
REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0),
};
static const struct linear_range ldo3_ranges[] = {
REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0),
/* with index 31 LDO3 is in DDR mode */
REGULATOR_LINEAR_RANGE(500000, 31, 31, 0),
};
static const struct linear_range ldo5_ranges[] = {
REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
REGULATOR_LINEAR_RANGE(1700000, 8, 30, 100000),
REGULATOR_LINEAR_RANGE(3900000, 31, 31, 0),
};
static const struct linear_range ldo6_ranges[] = {
REGULATOR_LINEAR_RANGE(900000, 0, 24, 100000),
REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0),
};
static const struct regulator_ops stpmic1_ldo_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_over_current_protection = stpmic1_set_icc,
};
static const struct regulator_ops stpmic1_ldo3_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_iterate,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_bypass = regulator_get_bypass_regmap,
.set_bypass = regulator_set_bypass_regmap,
.set_over_current_protection = stpmic1_set_icc,
};
static const struct regulator_ops stpmic1_ldo4_fixed_regul_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_over_current_protection = stpmic1_set_icc,
};
static const struct regulator_ops stpmic1_buck_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_pull_down = regulator_set_pull_down_regmap,
.set_mode = stpmic1_set_mode,
.get_mode = stpmic1_get_mode,
.set_over_current_protection = stpmic1_set_icc,
};
static const struct regulator_ops stpmic1_vref_ddr_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static const struct regulator_ops stpmic1_boost_regul_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_over_current_protection = stpmic1_set_icc,
};
static const struct regulator_ops stpmic1_switch_regul_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_over_current_protection = stpmic1_set_icc,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
#define REG_LDO(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 32, \
.ops = &stpmic1_ldo_ops, \
.linear_ranges = base ## _ranges, \
.n_linear_ranges = ARRAY_SIZE(base ## _ranges), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = ids##_ACTIVE_CR, \
.vsel_mask = LDO_VOLTAGE_MASK, \
.enable_reg = ids##_ACTIVE_CR, \
.enable_mask = LDO_ENABLE_MASK, \
.enable_val = 1, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.ramp_delay = PMIC_RAMP_DELAY, \
.supply_name = #base, \
}
#define REG_LDO3(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 32, \
.ops = &stpmic1_ldo3_ops, \
.linear_ranges = ldo3_ranges, \
.n_linear_ranges = ARRAY_SIZE(ldo3_ranges), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = LDO3_ACTIVE_CR, \
.vsel_mask = LDO_VOLTAGE_MASK, \
.enable_reg = LDO3_ACTIVE_CR, \
.enable_mask = LDO_ENABLE_MASK, \
.enable_val = 1, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.ramp_delay = PMIC_RAMP_DELAY, \
.bypass_reg = LDO3_ACTIVE_CR, \
.bypass_mask = LDO_BYPASS_MASK, \
.bypass_val_on = LDO_BYPASS_MASK, \
.bypass_val_off = 0, \
.supply_name = #base, \
}
#define REG_LDO4(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 1, \
.ops = &stpmic1_ldo4_fixed_regul_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 3300000, \
.fixed_uV = 3300000, \
.enable_reg = LDO4_ACTIVE_CR, \
.enable_mask = LDO_ENABLE_MASK, \
.enable_val = 1, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.ramp_delay = PMIC_RAMP_DELAY, \
.supply_name = #base, \
}
#define REG_BUCK(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.ops = &stpmic1_buck_ops, \
.n_voltages = 64, \
.linear_ranges = base ## _ranges, \
.n_linear_ranges = ARRAY_SIZE(base ## _ranges), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = ids##_ACTIVE_CR, \
.vsel_mask = BUCK_VOLTAGE_MASK, \
.enable_reg = ids##_ACTIVE_CR, \
.enable_mask = BUCK_ENABLE_MASK, \
.enable_val = 1, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.ramp_delay = PMIC_RAMP_DELAY, \
.of_map_mode = stpmic1_map_mode, \
.pull_down_reg = ids##_PULL_DOWN_REG, \
.pull_down_mask = ids##_PULL_DOWN_MASK, \
.supply_name = #base, \
}
#define REG_VREF_DDR(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 1, \
.ops = &stpmic1_vref_ddr_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 500000, \
.fixed_uV = 500000, \
.enable_reg = VREF_DDR_ACTIVE_CR, \
.enable_mask = BUCK_ENABLE_MASK, \
.enable_val = 1, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.supply_name = #base, \
}
#define REG_BOOST(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 1, \
.ops = &stpmic1_boost_regul_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 0, \
.fixed_uV = 5000000, \
.enable_reg = BST_SW_CR, \
.enable_mask = BOOST_ENABLED, \
.enable_val = BOOST_ENABLED, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.supply_name = #base, \
}
#define REG_VBUS_OTG(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 1, \
.ops = &stpmic1_switch_regul_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 0, \
.fixed_uV = 5000000, \
.enable_reg = BST_SW_CR, \
.enable_mask = USBSW_OTG_SWITCH_ENABLED, \
.enable_val = USBSW_OTG_SWITCH_ENABLED, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.supply_name = #base, \
.active_discharge_reg = BST_SW_CR, \
.active_discharge_mask = VBUS_OTG_DISCHARGE, \
.active_discharge_on = VBUS_OTG_DISCHARGE, \
}
#define REG_SW_OUT(ids, base) { \
.name = #ids, \
.id = STPMIC1_##ids, \
.n_voltages = 1, \
.ops = &stpmic1_switch_regul_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 0, \
.fixed_uV = 5000000, \
.enable_reg = BST_SW_CR, \
.enable_mask = SWIN_SWOUT_ENABLED, \
.enable_val = SWIN_SWOUT_ENABLED, \
.disable_val = 0, \
.enable_time = PMIC_ENABLE_TIME_US, \
.supply_name = #base, \
.active_discharge_reg = BST_SW_CR, \
.active_discharge_mask = SW_OUT_DISCHARGE, \
.active_discharge_on = SW_OUT_DISCHARGE, \
}
static const struct stpmic1_regulator_cfg stpmic1_regulator_cfgs[] = {
[STPMIC1_BUCK1] = {
.desc = REG_BUCK(BUCK1, buck1),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(0),
.mask_reset_reg = BUCKS_MASK_RESET_CR,
.mask_reset_mask = BIT(0),
},
[STPMIC1_BUCK2] = {
.desc = REG_BUCK(BUCK2, buck2),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(1),
.mask_reset_reg = BUCKS_MASK_RESET_CR,
.mask_reset_mask = BIT(1),
},
[STPMIC1_BUCK3] = {
.desc = REG_BUCK(BUCK3, buck3),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(2),
.mask_reset_reg = BUCKS_MASK_RESET_CR,
.mask_reset_mask = BIT(2),
},
[STPMIC1_BUCK4] = {
.desc = REG_BUCK(BUCK4, buck4),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(3),
.mask_reset_reg = BUCKS_MASK_RESET_CR,
.mask_reset_mask = BIT(3),
},
[STPMIC1_LDO1] = {
.desc = REG_LDO(LDO1, ldo1),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(0),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(0),
},
[STPMIC1_LDO2] = {
.desc = REG_LDO(LDO2, ldo2),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(1),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(1),
},
[STPMIC1_LDO3] = {
.desc = REG_LDO3(LDO3, ldo3),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(2),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(2),
},
[STPMIC1_LDO4] = {
.desc = REG_LDO4(LDO4, ldo4),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(3),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(3),
},
[STPMIC1_LDO5] = {
.desc = REG_LDO(LDO5, ldo5),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(4),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(4),
},
[STPMIC1_LDO6] = {
.desc = REG_LDO(LDO6, ldo6),
.icc_reg = LDOS_ICCTO_CR,
.icc_mask = BIT(5),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(5),
},
[STPMIC1_VREF_DDR] = {
.desc = REG_VREF_DDR(VREF_DDR, vref_ddr),
.mask_reset_reg = LDOS_MASK_RESET_CR,
.mask_reset_mask = BIT(6),
},
[STPMIC1_BOOST] = {
.desc = REG_BOOST(BOOST, boost),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(6),
},
[STPMIC1_VBUS_OTG] = {
.desc = REG_VBUS_OTG(VBUS_OTG, pwr_sw1),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(4),
},
[STPMIC1_SW_OUT] = {
.desc = REG_SW_OUT(SW_OUT, pwr_sw2),
.icc_reg = BUCKS_ICCTO_CR,
.icc_mask = BIT(5),
},
};
static unsigned int stpmic1_map_mode(unsigned int mode)
{
switch (mode) {
case STPMIC1_BUCK_MODE_NORMAL:
return REGULATOR_MODE_NORMAL;
case STPMIC1_BUCK_MODE_LP:
return REGULATOR_MODE_STANDBY;
default:
return REGULATOR_MODE_INVALID;
}
}
static unsigned int stpmic1_get_mode(struct regulator_dev *rdev)
{
int value;
struct regmap *regmap = rdev_get_regmap(rdev);
regmap_read(regmap, rdev->desc->enable_reg, &value);
if (value & STPMIC1_BUCK_MODE_LP)
return REGULATOR_MODE_STANDBY;
return REGULATOR_MODE_NORMAL;
}
static int stpmic1_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
int value;
struct regmap *regmap = rdev_get_regmap(rdev);
switch (mode) {
case REGULATOR_MODE_NORMAL:
value = STPMIC1_BUCK_MODE_NORMAL;
break;
case REGULATOR_MODE_STANDBY:
value = STPMIC1_BUCK_MODE_LP;
break;
default:
return -EINVAL;
}
return regmap_update_bits(regmap, rdev->desc->enable_reg,
STPMIC1_BUCK_MODE_LP, value);
}
static int stpmic1_set_icc(struct regulator_dev *rdev, int lim, int severity,
bool enable)
{
struct stpmic1_regulator_cfg *cfg = rdev_get_drvdata(rdev);
struct regmap *regmap = rdev_get_regmap(rdev);
/*
* The code seems like one bit in a register controls whether OCP is
* enabled. So we might be able to turn it off here is if that
* was requested. I won't support this because I don't have the HW.
* Feel free to try and implement if you have the HW and need kernel
* to disable this.
*
* Also, I don't know if limit can be configured or if we support
* error/warning instead of protect. So I just keep existing logic
* and assume no.
*/
if (lim || severity != REGULATOR_SEVERITY_PROT || !enable)
return -EINVAL;
/* enable switch off in case of over current */
return regmap_update_bits(regmap, cfg->icc_reg, cfg->icc_mask,
cfg->icc_mask);
}
static irqreturn_t stpmic1_curlim_irq_handler(int irq, void *data)
{
struct regulator_dev *rdev = (struct regulator_dev *)data;
/* Send an overcurrent notification */
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_OVER_CURRENT,
NULL);
return IRQ_HANDLED;
}
#define MATCH(_name, _id) \
[STPMIC1_##_id] = { \
.name = #_name, \
.desc = &stpmic1_regulator_cfgs[STPMIC1_##_id].desc, \
}
static struct of_regulator_match stpmic1_matches[] = {
MATCH(buck1, BUCK1),
MATCH(buck2, BUCK2),
MATCH(buck3, BUCK3),
MATCH(buck4, BUCK4),
MATCH(ldo1, LDO1),
MATCH(ldo2, LDO2),
MATCH(ldo3, LDO3),
MATCH(ldo4, LDO4),
MATCH(ldo5, LDO5),
MATCH(ldo6, LDO6),
MATCH(vref_ddr, VREF_DDR),
MATCH(boost, BOOST),
MATCH(pwr_sw1, VBUS_OTG),
MATCH(pwr_sw2, SW_OUT),
};
static int stpmic1_regulator_register(struct platform_device *pdev, int id,
struct of_regulator_match *match,
const struct stpmic1_regulator_cfg *cfg)
{
struct stpmic1 *pmic_dev = dev_get_drvdata(pdev->dev.parent);
struct regulator_dev *rdev;
struct regulator_config config = {};
int ret = 0;
int irq;
config.dev = &pdev->dev;
config.init_data = match->init_data;
config.of_node = match->of_node;
config.regmap = pmic_dev->regmap;
config.driver_data = (void *)cfg;
rdev = devm_regulator_register(&pdev->dev, &cfg->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s regulator\n",
cfg->desc.name);
return PTR_ERR(rdev);
}
/* set mask reset */
if (of_property_read_bool(config.of_node, "st,mask-reset") &&
cfg->mask_reset_reg != 0) {
ret = regmap_update_bits(pmic_dev->regmap,
cfg->mask_reset_reg,
cfg->mask_reset_mask,
cfg->mask_reset_mask);
if (ret) {
dev_err(&pdev->dev, "set mask reset failed\n");
return ret;
}
}
/* setup an irq handler for over-current detection */
irq = of_irq_get(config.of_node, 0);
if (irq > 0) {
ret = devm_request_threaded_irq(&pdev->dev,
irq, NULL,
stpmic1_curlim_irq_handler,
IRQF_ONESHOT | IRQF_SHARED,
pdev->name, rdev);
if (ret) {
dev_err(&pdev->dev, "Request IRQ failed\n");
return ret;
}
}
return 0;
}
static int stpmic1_regulator_probe(struct platform_device *pdev)
{
int i, ret;
ret = of_regulator_match(&pdev->dev, pdev->dev.of_node, stpmic1_matches,
ARRAY_SIZE(stpmic1_matches));
if (ret < 0) {
dev_err(&pdev->dev,
"Error in PMIC regulator device tree node");
return ret;
}
for (i = 0; i < ARRAY_SIZE(stpmic1_regulator_cfgs); i++) {
ret = stpmic1_regulator_register(pdev, i, &stpmic1_matches[i],
&stpmic1_regulator_cfgs[i]);
if (ret < 0)
return ret;
}
dev_dbg(&pdev->dev, "stpmic1_regulator driver probed\n");
return 0;
}
static const struct of_device_id of_pmic_regulator_match[] = {
{ .compatible = "st,stpmic1-regulators" },
{ },
};
MODULE_DEVICE_TABLE(of, of_pmic_regulator_match);
static struct platform_driver stpmic1_regulator_driver = {
.driver = {
.name = "stpmic1-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(of_pmic_regulator_match),
},
.probe = stpmic1_regulator_probe,
};
module_platform_driver(stpmic1_regulator_driver);
MODULE_DESCRIPTION("STPMIC1 PMIC voltage regulator driver");
MODULE_AUTHOR("Pascal Paillet <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/stpmic1_regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LM363X Regulator Driver
*
* Copyright 2015 Texas Instruments
*
* Author: Milo Kim <[email protected]>
*/
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/mfd/ti-lmu.h>
#include <linux/mfd/ti-lmu-register.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* LM3631 */
#define LM3631_BOOST_VSEL_MAX 0x25
#define LM3631_LDO_VSEL_MAX 0x28
#define LM3631_CONT_VSEL_MAX 0x03
#define LM3631_VBOOST_MIN 4500000
#define LM3631_VCONT_MIN 1800000
#define LM3631_VLDO_MIN 4000000
#define ENABLE_TIME_USEC 1000
/* LM3632 */
#define LM3632_BOOST_VSEL_MAX 0x26
#define LM3632_LDO_VSEL_MAX 0x28
#define LM3632_VBOOST_MIN 4500000
#define LM3632_VLDO_MIN 4000000
/* LM36274 */
#define LM36274_BOOST_VSEL_MAX 0x3f
#define LM36274_LDO_VSEL_MAX 0x32
#define LM36274_VOLTAGE_MIN 4000000
/* Common */
#define LM363X_STEP_50mV 50000
#define LM363X_STEP_500mV 500000
static const int ldo_cont_enable_time[] = {
0, 2000, 5000, 10000, 20000, 50000, 100000, 200000,
};
static int lm363x_regulator_enable_time(struct regulator_dev *rdev)
{
enum lm363x_regulator_id id = rdev_get_id(rdev);
unsigned int val, addr, mask;
switch (id) {
case LM3631_LDO_CONT:
addr = LM3631_REG_ENTIME_VCONT;
mask = LM3631_ENTIME_CONT_MASK;
break;
case LM3631_LDO_OREF:
addr = LM3631_REG_ENTIME_VOREF;
mask = LM3631_ENTIME_MASK;
break;
case LM3631_LDO_POS:
addr = LM3631_REG_ENTIME_VPOS;
mask = LM3631_ENTIME_MASK;
break;
case LM3631_LDO_NEG:
addr = LM3631_REG_ENTIME_VNEG;
mask = LM3631_ENTIME_MASK;
break;
default:
return 0;
}
if (regmap_read(rdev->regmap, addr, &val))
return -EINVAL;
val = (val & mask) >> LM3631_ENTIME_SHIFT;
if (id == LM3631_LDO_CONT)
return ldo_cont_enable_time[val];
else
return ENABLE_TIME_USEC * val;
}
static const struct regulator_ops lm363x_boost_voltage_table_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops lm363x_regulator_voltage_table_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.enable_time = lm363x_regulator_enable_time,
};
static const struct regulator_desc lm363x_regulator_desc[] = {
/* LM3631 */
{
.name = "vboost",
.of_match = "vboost",
.id = LM3631_BOOST,
.ops = &lm363x_boost_voltage_table_ops,
.n_voltages = LM3631_BOOST_VSEL_MAX + 1,
.min_uV = LM3631_VBOOST_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3631_REG_VOUT_BOOST,
.vsel_mask = LM3631_VOUT_MASK,
},
{
.name = "ldo_cont",
.of_match = "vcont",
.id = LM3631_LDO_CONT,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3631_CONT_VSEL_MAX + 1,
.min_uV = LM3631_VCONT_MIN,
.uV_step = LM363X_STEP_500mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3631_REG_VOUT_CONT,
.vsel_mask = LM3631_VOUT_CONT_MASK,
.enable_reg = LM3631_REG_LDO_CTRL2,
.enable_mask = LM3631_EN_CONT_MASK,
},
{
.name = "ldo_oref",
.of_match = "voref",
.id = LM3631_LDO_OREF,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3631_LDO_VSEL_MAX + 1,
.min_uV = LM3631_VLDO_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3631_REG_VOUT_OREF,
.vsel_mask = LM3631_VOUT_MASK,
.enable_reg = LM3631_REG_LDO_CTRL1,
.enable_mask = LM3631_EN_OREF_MASK,
},
{
.name = "ldo_vpos",
.of_match = "vpos",
.id = LM3631_LDO_POS,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3631_LDO_VSEL_MAX + 1,
.min_uV = LM3631_VLDO_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3631_REG_VOUT_POS,
.vsel_mask = LM3631_VOUT_MASK,
.enable_reg = LM3631_REG_LDO_CTRL1,
.enable_mask = LM3631_EN_VPOS_MASK,
},
{
.name = "ldo_vneg",
.of_match = "vneg",
.id = LM3631_LDO_NEG,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3631_LDO_VSEL_MAX + 1,
.min_uV = LM3631_VLDO_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3631_REG_VOUT_NEG,
.vsel_mask = LM3631_VOUT_MASK,
.enable_reg = LM3631_REG_LDO_CTRL1,
.enable_mask = LM3631_EN_VNEG_MASK,
},
/* LM3632 */
{
.name = "vboost",
.of_match = "vboost",
.id = LM3632_BOOST,
.ops = &lm363x_boost_voltage_table_ops,
.n_voltages = LM3632_BOOST_VSEL_MAX + 1,
.min_uV = LM3632_VBOOST_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3632_REG_VOUT_BOOST,
.vsel_mask = LM3632_VOUT_MASK,
},
{
.name = "ldo_vpos",
.of_match = "vpos",
.id = LM3632_LDO_POS,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3632_LDO_VSEL_MAX + 1,
.min_uV = LM3632_VLDO_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3632_REG_VOUT_POS,
.vsel_mask = LM3632_VOUT_MASK,
.enable_reg = LM3632_REG_BIAS_CONFIG,
.enable_mask = LM3632_EN_VPOS_MASK,
},
{
.name = "ldo_vneg",
.of_match = "vneg",
.id = LM3632_LDO_NEG,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM3632_LDO_VSEL_MAX + 1,
.min_uV = LM3632_VLDO_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM3632_REG_VOUT_NEG,
.vsel_mask = LM3632_VOUT_MASK,
.enable_reg = LM3632_REG_BIAS_CONFIG,
.enable_mask = LM3632_EN_VNEG_MASK,
},
/* LM36274 */
{
.name = "vboost",
.of_match = "vboost",
.id = LM36274_BOOST,
.ops = &lm363x_boost_voltage_table_ops,
.n_voltages = LM36274_BOOST_VSEL_MAX + 1,
.min_uV = LM36274_VOLTAGE_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM36274_REG_VOUT_BOOST,
.vsel_mask = LM36274_VOUT_MASK,
},
{
.name = "ldo_vpos",
.of_match = "vpos",
.id = LM36274_LDO_POS,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM36274_LDO_VSEL_MAX + 1,
.min_uV = LM36274_VOLTAGE_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM36274_REG_VOUT_POS,
.vsel_mask = LM36274_VOUT_MASK,
.enable_reg = LM36274_REG_BIAS_CONFIG_1,
.enable_mask = LM36274_EN_VPOS_MASK,
},
{
.name = "ldo_vneg",
.of_match = "vneg",
.id = LM36274_LDO_NEG,
.ops = &lm363x_regulator_voltage_table_ops,
.n_voltages = LM36274_LDO_VSEL_MAX + 1,
.min_uV = LM36274_VOLTAGE_MIN,
.uV_step = LM363X_STEP_50mV,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LM36274_REG_VOUT_NEG,
.vsel_mask = LM36274_VOUT_MASK,
.enable_reg = LM36274_REG_BIAS_CONFIG_1,
.enable_mask = LM36274_EN_VNEG_MASK,
},
};
static struct gpio_desc *lm363x_regulator_of_get_enable_gpio(struct device *dev, int id)
{
/*
* Check LCM_EN1/2_GPIO is configured.
* Those pins are used for enabling VPOS/VNEG LDOs.
* Do not use devm* here: the regulator core takes over the
* lifecycle management of the GPIO descriptor.
*/
switch (id) {
case LM3632_LDO_POS:
case LM36274_LDO_POS:
return gpiod_get_index_optional(dev, "enable", 0,
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
case LM3632_LDO_NEG:
case LM36274_LDO_NEG:
return gpiod_get_index_optional(dev, "enable", 1,
GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
default:
return NULL;
}
}
static int lm363x_regulator_set_ext_en(struct regmap *regmap, int id)
{
int ext_en_mask = 0;
switch (id) {
case LM3632_LDO_POS:
case LM3632_LDO_NEG:
ext_en_mask = LM3632_EXT_EN_MASK;
break;
case LM36274_LDO_POS:
case LM36274_LDO_NEG:
ext_en_mask = LM36274_EXT_EN_MASK;
break;
default:
return -ENODEV;
}
return regmap_update_bits(regmap, lm363x_regulator_desc[id].enable_reg,
ext_en_mask, ext_en_mask);
}
static int lm363x_regulator_probe(struct platform_device *pdev)
{
struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
struct regmap *regmap = lmu->regmap;
struct regulator_config cfg = { };
struct regulator_dev *rdev;
struct device *dev = &pdev->dev;
int id = pdev->id;
struct gpio_desc *gpiod;
int ret;
cfg.dev = dev;
cfg.regmap = regmap;
/*
* LM3632 LDOs can be controlled by external pin.
* Register update is required if the pin is used.
*/
gpiod = lm363x_regulator_of_get_enable_gpio(dev, id);
if (IS_ERR(gpiod))
return PTR_ERR(gpiod);
if (gpiod) {
cfg.ena_gpiod = gpiod;
ret = lm363x_regulator_set_ext_en(regmap, id);
if (ret) {
gpiod_put(gpiod);
dev_err(dev, "External pin err: %d\n", ret);
return ret;
}
}
rdev = devm_regulator_register(dev, &lm363x_regulator_desc[id], &cfg);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "[%d] regulator register err: %d\n", id, ret);
return ret;
}
return 0;
}
static struct platform_driver lm363x_regulator_driver = {
.probe = lm363x_regulator_probe,
.driver = {
.name = "lm363x-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
module_platform_driver(lm363x_regulator_driver);
MODULE_DESCRIPTION("TI LM363X Regulator Driver");
MODULE_AUTHOR("Milo Kim");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:lm363x-regulator");
| linux-master | drivers/regulator/lm363x-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for TPS61050/61052 boost converters, typically used for white LEDs
* or audio amplifiers.
*
* Copyright (C) 2011 ST-Ericsson SA
* Written on behalf of Linaro for ST-Ericsson
*
* Author: Linus Walleij <[email protected]>
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/regmap.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps6105x.h>
static const unsigned int tps6105x_voltages[] = {
4500000,
5000000,
5250000,
5000000, /* There is an additional 5V */
};
static const struct regulator_ops tps6105x_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_table,
};
static const struct regulator_desc tps6105x_regulator_desc = {
.name = "tps6105x-boost",
.of_match = of_match_ptr("regulator"),
.ops = &tps6105x_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = 0,
.owner = THIS_MODULE,
.n_voltages = ARRAY_SIZE(tps6105x_voltages),
.volt_table = tps6105x_voltages,
.vsel_reg = TPS6105X_REG_0,
.vsel_mask = TPS6105X_REG0_VOLTAGE_MASK,
.enable_reg = TPS6105X_REG_0,
.enable_mask = TPS6105X_REG0_MODE_MASK,
.enable_val = TPS6105X_REG0_MODE_VOLTAGE <<
TPS6105X_REG0_MODE_SHIFT,
};
/*
* Registers the chip as a voltage regulator
*/
static int tps6105x_regulator_probe(struct platform_device *pdev)
{
struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev);
struct tps6105x_platform_data *pdata = tps6105x->pdata;
struct regulator_config config = { };
int ret;
/* This instance is not set for regulator mode so bail out */
if (pdata->mode != TPS6105X_MODE_VOLTAGE) {
dev_info(&pdev->dev,
"chip not in voltage mode mode, exit probe\n");
return 0;
}
config.dev = &tps6105x->client->dev;
config.init_data = pdata->regulator_data;
config.driver_data = tps6105x;
config.of_node = pdev->dev.parent->of_node;
config.regmap = tps6105x->regmap;
/* Register regulator with framework */
tps6105x->regulator = devm_regulator_register(&pdev->dev,
&tps6105x_regulator_desc,
&config);
if (IS_ERR(tps6105x->regulator)) {
ret = PTR_ERR(tps6105x->regulator);
dev_err(&tps6105x->client->dev,
"failed to register regulator\n");
return ret;
}
platform_set_drvdata(pdev, tps6105x);
return 0;
}
static struct platform_driver tps6105x_regulator_driver = {
.driver = {
.name = "tps6105x-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps6105x_regulator_probe,
};
static __init int tps6105x_regulator_init(void)
{
return platform_driver_register(&tps6105x_regulator_driver);
}
subsys_initcall(tps6105x_regulator_init);
static __exit void tps6105x_regulator_exit(void)
{
platform_driver_unregister(&tps6105x_regulator_driver);
}
module_exit(tps6105x_regulator_exit);
MODULE_AUTHOR("Linus Walleij <[email protected]>");
MODULE_DESCRIPTION("TPS6105x regulator driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tps6105x-regulator");
| linux-master | drivers/regulator/tps6105x-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// tps65219-regulator.c
//
// Regulator driver for TPS65219 PMIC
//
// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
//
// This implementation derived from tps65218 authored by
// "J Keerthy <[email protected]>"
//
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65219.h>
struct tps65219_regulator_irq_type {
const char *irq_name;
const char *regulator_name;
const char *event_name;
unsigned long event;
};
static struct tps65219_regulator_irq_type tps65219_regulator_irq_types[] = {
{ "LDO3_SCG", "LDO3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "LDO3_OC", "LDO3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "LDO3_UV", "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "LDO4_SCG", "LDO4", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "LDO4_OC", "LDO4", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "LDO4_UV", "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "LDO1_SCG", "LDO1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "LDO1_OC", "LDO1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "LDO1_UV", "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "LDO2_SCG", "LDO2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "LDO2_OC", "LDO2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "LDO2_UV", "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "BUCK3_SCG", "BUCK3", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "BUCK3_OC", "BUCK3", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK3_NEG_OC", "BUCK3", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK3_UV", "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "BUCK1_SCG", "BUCK1", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "BUCK1_OC", "BUCK1", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK1_NEG_OC", "BUCK1", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK1_UV", "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "BUCK2_SCG", "BUCK2", "short circuit to ground", REGULATOR_EVENT_REGULATION_OUT },
{ "BUCK2_OC", "BUCK2", "overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK2_NEG_OC", "BUCK2", "negative overcurrent", REGULATOR_EVENT_OVER_CURRENT },
{ "BUCK2_UV", "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ "BUCK1_RV", "BUCK1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "BUCK2_RV", "BUCK2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "BUCK3_RV", "BUCK3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO1_RV", "LDO1", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO2_RV", "LDO2", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO3_RV", "LDO3", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO4_RV", "LDO4", "residual voltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "BUCK1_RV_SD", "BUCK1", "residual voltage on shutdown",
REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "BUCK2_RV_SD", "BUCK2", "residual voltage on shutdown",
REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "BUCK3_RV_SD", "BUCK3", "residual voltage on shutdown",
REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO1_RV_SD", "LDO1", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO2_RV_SD", "LDO2", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO3_RV_SD", "LDO3", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "LDO4_RV_SD", "LDO4", "residual voltage on shutdown", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ "SENSOR_3_WARM", "SENSOR3", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN},
{ "SENSOR_2_WARM", "SENSOR2", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
{ "SENSOR_1_WARM", "SENSOR1", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
{ "SENSOR_0_WARM", "SENSOR0", "warm temperature", REGULATOR_EVENT_OVER_TEMP_WARN },
{ "SENSOR_3_HOT", "SENSOR3", "hot temperature", REGULATOR_EVENT_OVER_TEMP},
{ "SENSOR_2_HOT", "SENSOR2", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
{ "SENSOR_1_HOT", "SENSOR1", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
{ "SENSOR_0_HOT", "SENSOR0", "hot temperature", REGULATOR_EVENT_OVER_TEMP },
{ "TIMEOUT", "", "", REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE },
};
struct tps65219_regulator_irq_data {
struct device *dev;
struct tps65219_regulator_irq_type *type;
struct regulator_dev *rdev;
};
#define TPS65219_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
_em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
_ct, _ncl, _bpm) \
{ \
.name = _name, \
.of_match = _of, \
.regulators_node = of_match_ptr("regulators"), \
.supply_name = _of, \
.id = _id, \
.ops = &(_ops), \
.n_voltages = _n, \
.type = _type, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = _vm, \
.csel_reg = _cr, \
.csel_mask = _cm, \
.curr_table = _ct, \
.n_current_limits = _ncl, \
.enable_reg = _er, \
.enable_mask = _em, \
.volt_table = NULL, \
.linear_ranges = _lr, \
.n_linear_ranges = _nlr, \
.ramp_delay = _delay, \
.fixed_uV = _fuv, \
.bypass_reg = _vr, \
.bypass_mask = _bpm, \
} \
static const struct linear_range bucks_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x0, 0x1f, 25000),
REGULATOR_LINEAR_RANGE(1400000, 0x20, 0x33, 100000),
REGULATOR_LINEAR_RANGE(3400000, 0x34, 0x3f, 0),
};
static const struct linear_range ldos_1_2_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x0, 0x37, 50000),
REGULATOR_LINEAR_RANGE(3400000, 0x38, 0x3f, 0),
};
static const struct linear_range ldos_3_4_ranges[] = {
REGULATOR_LINEAR_RANGE(1200000, 0x0, 0xC, 0),
REGULATOR_LINEAR_RANGE(1250000, 0xD, 0x35, 50000),
REGULATOR_LINEAR_RANGE(3300000, 0x36, 0x3F, 0),
};
static int tps65219_set_mode(struct regulator_dev *dev, unsigned int mode)
{
struct tps65219 *tps = rdev_get_drvdata(dev);
switch (mode) {
case REGULATOR_MODE_NORMAL:
return regmap_set_bits(tps->regmap, TPS65219_REG_STBY_1_CONFIG,
dev->desc->enable_mask);
case REGULATOR_MODE_STANDBY:
return regmap_clear_bits(tps->regmap,
TPS65219_REG_STBY_1_CONFIG,
dev->desc->enable_mask);
default:
return -EINVAL;
}
}
static unsigned int tps65219_get_mode(struct regulator_dev *dev)
{
struct tps65219 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
int ret, value = 0;
ret = regmap_read(tps->regmap, TPS65219_REG_STBY_1_CONFIG, &value);
if (ret) {
dev_dbg(tps->dev, "%s failed for regulator %s: %d ",
__func__, dev->desc->name, ret);
return ret;
}
value = (value & BIT(rid)) >> rid;
if (value)
return REGULATOR_MODE_STANDBY;
else
return REGULATOR_MODE_NORMAL;
}
/* Operations permitted on BUCK1/2/3 */
static const struct regulator_ops tps65219_bucks_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = tps65219_set_mode,
.get_mode = tps65219_get_mode,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
/* Operations permitted on LDO1/2 */
static const struct regulator_ops tps65219_ldos_1_2_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = tps65219_set_mode,
.get_mode = tps65219_get_mode,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
/* Operations permitted on LDO3/4 */
static const struct regulator_ops tps65219_ldos_3_4_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = tps65219_set_mode,
.get_mode = tps65219_get_mode,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static const struct regulator_desc regulators[] = {
TPS65219_REGULATOR("BUCK1", "buck1", TPS65219_BUCK_1,
REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
TPS65219_REG_BUCK1_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_BUCK1_EN_MASK, 0, 0, bucks_ranges,
3, 4000, 0, NULL, 0, 0),
TPS65219_REGULATOR("BUCK2", "buck2", TPS65219_BUCK_2,
REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
TPS65219_REG_BUCK2_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_BUCK2_EN_MASK, 0, 0, bucks_ranges,
3, 4000, 0, NULL, 0, 0),
TPS65219_REGULATOR("BUCK3", "buck3", TPS65219_BUCK_3,
REGULATOR_VOLTAGE, tps65219_bucks_ops, 64,
TPS65219_REG_BUCK3_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_BUCK3_EN_MASK, 0, 0, bucks_ranges,
3, 0, 0, NULL, 0, 0),
TPS65219_REGULATOR("LDO1", "ldo1", TPS65219_LDO_1,
REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
TPS65219_REG_LDO1_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_LDO1_EN_MASK, 0, 0, ldos_1_2_ranges,
2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
TPS65219_REGULATOR("LDO2", "ldo2", TPS65219_LDO_2,
REGULATOR_VOLTAGE, tps65219_ldos_1_2_ops, 64,
TPS65219_REG_LDO2_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_LDO2_EN_MASK, 0, 0, ldos_1_2_ranges,
2, 0, 0, NULL, 0, TPS65219_LDOS_BYP_CONFIG_MASK),
TPS65219_REGULATOR("LDO3", "ldo3", TPS65219_LDO_3,
REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
TPS65219_REG_LDO3_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_LDO3_EN_MASK, 0, 0, ldos_3_4_ranges,
3, 0, 0, NULL, 0, 0),
TPS65219_REGULATOR("LDO4", "ldo4", TPS65219_LDO_4,
REGULATOR_VOLTAGE, tps65219_ldos_3_4_ops, 64,
TPS65219_REG_LDO4_VOUT,
TPS65219_BUCKS_LDOS_VOUT_VSET_MASK,
TPS65219_REG_ENABLE_CTRL,
TPS65219_ENABLE_LDO4_EN_MASK, 0, 0, ldos_3_4_ranges,
3, 0, 0, NULL, 0, 0),
};
static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
{
struct tps65219_regulator_irq_data *irq_data = data;
if (irq_data->type->event_name[0] == '\0') {
/* This is the timeout interrupt no specific regulator */
dev_err(irq_data->dev,
"System was put in shutdown due to timeout during an active or standby transition.\n");
return IRQ_HANDLED;
}
regulator_notifier_call_chain(irq_data->rdev,
irq_data->type->event, NULL);
dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
irq_data->type->event_name, irq_data->type->regulator_name);
return IRQ_HANDLED;
}
static int tps65219_get_rdev_by_name(const char *regulator_name,
struct regulator_dev *rdevtbl[7],
struct regulator_dev **dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
if (strcmp(regulator_name, regulators[i].name) == 0) {
*dev = rdevtbl[i];
return 0;
}
}
return -EINVAL;
}
static int tps65219_regulator_probe(struct platform_device *pdev)
{
struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_dev *rdev;
struct regulator_config config = { };
int i;
int error;
int irq;
struct tps65219_regulator_irq_data *irq_data;
struct tps65219_regulator_irq_type *irq_type;
struct regulator_dev *rdevtbl[7];
config.dev = tps->dev;
config.driver_data = tps;
config.regmap = tps->regmap;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
dev_dbg(tps->dev, "%s regul i= %d START", __func__, i);
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "failed to register %s regulator\n",
regulators[i].name);
return PTR_ERR(rdev);
}
rdevtbl[i] = rdev;
dev_dbg(tps->dev, "%s regul i= %d COMPLETED", __func__, i);
}
irq_data = devm_kmalloc(tps->dev,
ARRAY_SIZE(tps65219_regulator_irq_types) *
sizeof(struct tps65219_regulator_irq_data),
GFP_KERNEL);
if (!irq_data)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(tps65219_regulator_irq_types); ++i) {
irq_type = &tps65219_regulator_irq_types[i];
irq = platform_get_irq_byname(pdev, irq_type->irq_name);
if (irq < 0)
return -EINVAL;
irq_data[i].dev = tps->dev;
irq_data[i].type = irq_type;
tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, &rdev);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "Failed to get rdev for %s\n",
irq_type->regulator_name);
return -EINVAL;
}
irq_data[i].rdev = rdev;
error = devm_request_threaded_irq(tps->dev, irq, NULL,
tps65219_regulator_irq_handler,
IRQF_ONESHOT,
irq_type->irq_name,
&irq_data[i]);
if (error) {
dev_err(tps->dev, "failed to request %s IRQ %d: %d\n",
irq_type->irq_name, irq, error);
return error;
}
}
return 0;
}
static const struct platform_device_id tps65219_regulator_id_table[] = {
{ "tps65219-regulator", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65219_regulator_id_table);
static struct platform_driver tps65219_regulator_driver = {
.driver = {
.name = "tps65219-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65219_regulator_probe,
.id_table = tps65219_regulator_id_table,
};
module_platform_driver(tps65219_regulator_driver);
MODULE_AUTHOR("Jerome Neanne <[email protected]>");
MODULE_DESCRIPTION("TPS65219 voltage regulator driver");
MODULE_ALIAS("platform:tps65219-pmic");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/tps65219-regulator.c |
/*
* TI TPS65132 Regulator driver
*
* Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved.
*
* Author: Venkat Reddy Talla <[email protected]>
* Laxman Dewangan <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
* whether express or implied; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#define TPS65132_REG_VPOS 0x00
#define TPS65132_REG_VNEG 0x01
#define TPS65132_REG_APPS_DISP_DISN 0x03
#define TPS65132_REG_CONTROL 0x0FF
#define TPS65132_VOUT_MASK 0x1F
#define TPS65132_VOUT_N_VOLTAGE 0x15
#define TPS65132_VOUT_VMIN 4000000
#define TPS65132_VOUT_VMAX 6000000
#define TPS65132_VOUT_STEP 100000
#define TPS65132_REG_APPS_DIS_VPOS BIT(0)
#define TPS65132_REG_APPS_DIS_VNEG BIT(1)
#define TPS65132_REGULATOR_ID_VPOS 0
#define TPS65132_REGULATOR_ID_VNEG 1
#define TPS65132_MAX_REGULATORS 2
#define TPS65132_ACT_DIS_TIME_SLACK 1000
struct tps65132_reg_pdata {
struct gpio_desc *en_gpiod;
struct gpio_desc *act_dis_gpiod;
unsigned int act_dis_time_us;
int ena_gpio_state;
};
struct tps65132_regulator {
struct device *dev;
struct tps65132_reg_pdata reg_pdata[TPS65132_MAX_REGULATORS];
};
static int tps65132_regulator_enable(struct regulator_dev *rdev)
{
struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
int ret;
if (!IS_ERR(rpdata->en_gpiod)) {
gpiod_set_value_cansleep(rpdata->en_gpiod, 1);
rpdata->ena_gpio_state = 1;
}
/* Hardware automatically enable discharge bit in enable */
if (rdev->constraints->active_discharge ==
REGULATOR_ACTIVE_DISCHARGE_DISABLE) {
ret = regulator_set_active_discharge_regmap(rdev, false);
if (ret < 0) {
dev_err(tps->dev, "Failed to disable active discharge: %d\n",
ret);
return ret;
}
}
return 0;
}
static int tps65132_regulator_disable(struct regulator_dev *rdev)
{
struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
if (!IS_ERR(rpdata->en_gpiod)) {
gpiod_set_value_cansleep(rpdata->en_gpiod, 0);
rpdata->ena_gpio_state = 0;
}
if (!IS_ERR(rpdata->act_dis_gpiod)) {
gpiod_set_value_cansleep(rpdata->act_dis_gpiod, 1);
usleep_range(rpdata->act_dis_time_us, rpdata->act_dis_time_us +
TPS65132_ACT_DIS_TIME_SLACK);
gpiod_set_value_cansleep(rpdata->act_dis_gpiod, 0);
}
return 0;
}
static int tps65132_regulator_is_enabled(struct regulator_dev *rdev)
{
struct tps65132_regulator *tps = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[id];
if (!IS_ERR(rpdata->en_gpiod))
return rpdata->ena_gpio_state;
return 1;
}
static const struct regulator_ops tps65132_regulator_ops = {
.enable = tps65132_regulator_enable,
.disable = tps65132_regulator_disable,
.is_enabled = tps65132_regulator_is_enabled,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
static int tps65132_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct tps65132_regulator *tps = config->driver_data;
struct tps65132_reg_pdata *rpdata = &tps->reg_pdata[desc->id];
int ret;
rpdata->en_gpiod = devm_fwnode_gpiod_get(tps->dev, of_fwnode_handle(np),
"enable", GPIOD_ASIS,
"enable");
if (IS_ERR(rpdata->en_gpiod)) {
ret = PTR_ERR(rpdata->en_gpiod);
/* Ignore the error other than probe defer */
if (ret == -EPROBE_DEFER)
return ret;
return 0;
}
rpdata->act_dis_gpiod = devm_fwnode_gpiod_get(tps->dev,
of_fwnode_handle(np),
"active-discharge",
GPIOD_ASIS,
"active-discharge");
if (IS_ERR(rpdata->act_dis_gpiod)) {
ret = PTR_ERR(rpdata->act_dis_gpiod);
/* Ignore the error other than probe defer */
if (ret == -EPROBE_DEFER)
return ret;
return 0;
}
ret = of_property_read_u32(np, "ti,active-discharge-time-us",
&rpdata->act_dis_time_us);
if (ret < 0) {
dev_err(tps->dev, "Failed to read active discharge time:%d\n",
ret);
return ret;
}
return 0;
}
#define TPS65132_REGULATOR_DESC(_id, _name) \
[TPS65132_REGULATOR_ID_##_id] = { \
.name = "tps65132-"#_name, \
.supply_name = "vin", \
.id = TPS65132_REGULATOR_ID_##_id, \
.of_match = of_match_ptr(#_name), \
.of_parse_cb = tps65132_of_parse_cb, \
.ops = &tps65132_regulator_ops, \
.n_voltages = TPS65132_VOUT_N_VOLTAGE, \
.min_uV = TPS65132_VOUT_VMIN, \
.uV_step = TPS65132_VOUT_STEP, \
.enable_time = 500, \
.vsel_mask = TPS65132_VOUT_MASK, \
.vsel_reg = TPS65132_REG_##_id, \
.active_discharge_off = 0, \
.active_discharge_on = TPS65132_REG_APPS_DIS_##_id, \
.active_discharge_mask = TPS65132_REG_APPS_DIS_##_id, \
.active_discharge_reg = TPS65132_REG_APPS_DISP_DISN, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
static const struct regulator_desc tps_regs_desc[TPS65132_MAX_REGULATORS] = {
TPS65132_REGULATOR_DESC(VPOS, outp),
TPS65132_REGULATOR_DESC(VNEG, outn),
};
static const struct regmap_range tps65132_no_reg_ranges[] = {
regmap_reg_range(TPS65132_REG_APPS_DISP_DISN + 1,
TPS65132_REG_CONTROL - 1),
};
static const struct regmap_access_table tps65132_no_reg_table = {
.no_ranges = tps65132_no_reg_ranges,
.n_no_ranges = ARRAY_SIZE(tps65132_no_reg_ranges),
};
static const struct regmap_config tps65132_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = TPS65132_REG_CONTROL,
.cache_type = REGCACHE_NONE,
.rd_table = &tps65132_no_reg_table,
.wr_table = &tps65132_no_reg_table,
};
static int tps65132_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct tps65132_regulator *tps;
struct regulator_dev *rdev;
struct regmap *rmap;
struct regulator_config config = { };
int id;
int ret;
tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
rmap = devm_regmap_init_i2c(client, &tps65132_regmap_config);
if (IS_ERR(rmap)) {
ret = PTR_ERR(rmap);
dev_err(dev, "regmap init failed: %d\n", ret);
return ret;
}
i2c_set_clientdata(client, tps);
tps->dev = dev;
for (id = 0; id < TPS65132_MAX_REGULATORS; ++id) {
config.regmap = rmap;
config.dev = dev;
config.driver_data = tps;
rdev = devm_regulator_register(dev, &tps_regs_desc[id],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "regulator %s register failed: %d\n",
tps_regs_desc[id].name, ret);
return ret;
}
}
return 0;
}
static const struct i2c_device_id tps65132_id[] = {
{.name = "tps65132",},
{},
};
MODULE_DEVICE_TABLE(i2c, tps65132_id);
static struct i2c_driver tps65132_i2c_driver = {
.driver = {
.name = "tps65132",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65132_probe,
.id_table = tps65132_id,
};
module_i2c_driver(tps65132_i2c_driver);
MODULE_DESCRIPTION("tps65132 regulator driver");
MODULE_AUTHOR("Venkat Reddy Talla <[email protected]>");
MODULE_AUTHOR("Laxman Dewangan <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/tps65132-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2012 ARM Limited
#define DRVNAME "vexpress-regulator"
#define pr_fmt(fmt) DRVNAME ": " fmt
#include <linux/device.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/vexpress.h>
static int vexpress_regulator_get_voltage(struct regulator_dev *regdev)
{
unsigned int uV;
int err = regmap_read(regdev->regmap, 0, &uV);
return err ? err : uV;
}
static int vexpress_regulator_set_voltage(struct regulator_dev *regdev,
int min_uV, int max_uV, unsigned *selector)
{
return regmap_write(regdev->regmap, 0, min_uV);
}
static const struct regulator_ops vexpress_regulator_ops_ro = {
.get_voltage = vexpress_regulator_get_voltage,
};
static const struct regulator_ops vexpress_regulator_ops = {
.get_voltage = vexpress_regulator_get_voltage,
.set_voltage = vexpress_regulator_set_voltage,
};
static int vexpress_regulator_probe(struct platform_device *pdev)
{
struct regulator_desc *desc;
struct regulator_init_data *init_data;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct regmap *regmap;
desc = devm_kzalloc(&pdev->dev, sizeof(*desc), GFP_KERNEL);
if (!desc)
return -ENOMEM;
regmap = devm_regmap_init_vexpress_config(&pdev->dev);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
desc->name = dev_name(&pdev->dev);
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
desc->continuous_voltage_range = true;
init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
desc);
if (!init_data)
return -EINVAL;
init_data->constraints.apply_uV = 0;
if (init_data->constraints.min_uV && init_data->constraints.max_uV)
desc->ops = &vexpress_regulator_ops;
else
desc->ops = &vexpress_regulator_ops_ro;
config.regmap = regmap;
config.dev = &pdev->dev;
config.init_data = init_data;
config.of_node = pdev->dev.of_node;
rdev = devm_regulator_register(&pdev->dev, desc, &config);
return PTR_ERR_OR_ZERO(rdev);
}
static const struct of_device_id vexpress_regulator_of_match[] = {
{ .compatible = "arm,vexpress-volt", },
{ }
};
MODULE_DEVICE_TABLE(of, vexpress_regulator_of_match);
static struct platform_driver vexpress_regulator_driver = {
.probe = vexpress_regulator_probe,
.driver = {
.name = DRVNAME,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = vexpress_regulator_of_match,
},
};
module_platform_driver(vexpress_regulator_driver);
MODULE_AUTHOR("Pawel Moll <[email protected]>");
MODULE_DESCRIPTION("Versatile Express regulator");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:vexpress-regulator");
| linux-master | drivers/regulator/vexpress-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define RT6160_MODE_AUTO 0
#define RT6160_MODE_FPWM 1
#define RT6160_REG_CNTL 0x01
#define RT6160_REG_STATUS 0x02
#define RT6160_REG_DEVID 0x03
#define RT6160_REG_VSELL 0x04
#define RT6160_REG_VSELH 0x05
#define RT6160_NUM_REGS (RT6160_REG_VSELH + 1)
#define RT6160_FPWM_MASK BIT(3)
#define RT6160_RAMPRATE_MASK GENMASK(1, 0)
#define RT6160_VID_MASK GENMASK(7, 4)
#define RT6160_VSEL_MASK GENMASK(6, 0)
#define RT6160_HDSTAT_MASK BIT(4)
#define RT6160_UVSTAT_MASK BIT(3)
#define RT6160_OCSTAT_MASK BIT(2)
#define RT6160_TSDSTAT_MASK BIT(1)
#define RT6160_PGSTAT_MASK BIT(0)
#define RT6160_VENDOR_ID 0xA0
#define RT6160_VOUT_MINUV 2025000
#define RT6160_VOUT_MAXUV 5200000
#define RT6160_VOUT_STPUV 25000
#define RT6160_N_VOUTS ((RT6160_VOUT_MAXUV - RT6160_VOUT_MINUV) / RT6160_VOUT_STPUV + 1)
#define RT6160_I2CRDY_TIMEUS 100
struct rt6160_priv {
struct regulator_desc desc;
struct gpio_desc *enable_gpio;
struct regmap *regmap;
bool enable_state;
};
static const unsigned int rt6160_ramp_tables[] = {
1000, 2500, 5000, 10000
};
static int rt6160_enable(struct regulator_dev *rdev)
{
struct rt6160_priv *priv = rdev_get_drvdata(rdev);
if (!priv->enable_gpio)
return 0;
gpiod_set_value_cansleep(priv->enable_gpio, 1);
priv->enable_state = true;
usleep_range(RT6160_I2CRDY_TIMEUS, RT6160_I2CRDY_TIMEUS + 100);
regcache_cache_only(priv->regmap, false);
return regcache_sync(priv->regmap);
}
static int rt6160_disable(struct regulator_dev *rdev)
{
struct rt6160_priv *priv = rdev_get_drvdata(rdev);
if (!priv->enable_gpio)
return -EINVAL;
/* Mark regcache as dirty and cache only before HW disabled */
regcache_cache_only(priv->regmap, true);
regcache_mark_dirty(priv->regmap);
priv->enable_state = false;
gpiod_set_value_cansleep(priv->enable_gpio, 0);
return 0;
}
static int rt6160_is_enabled(struct regulator_dev *rdev)
{
struct rt6160_priv *priv = rdev_get_drvdata(rdev);
return priv->enable_state ? 1 : 0;
}
static int rt6160_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int mode_val;
switch (mode) {
case REGULATOR_MODE_FAST:
mode_val = RT6160_FPWM_MASK;
break;
case REGULATOR_MODE_NORMAL:
mode_val = 0;
break;
default:
dev_err(&rdev->dev, "mode not supported\n");
return -EINVAL;
}
return regmap_update_bits(regmap, RT6160_REG_CNTL, RT6160_FPWM_MASK, mode_val);
}
static unsigned int rt6160_get_mode(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int val;
int ret;
ret = regmap_read(regmap, RT6160_REG_CNTL, &val);
if (ret)
return ret;
if (val & RT6160_FPWM_MASK)
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static int rt6160_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int suspend_vsel_reg;
int vsel;
vsel = regulator_map_voltage_linear(rdev, uV, uV);
if (vsel < 0)
return vsel;
if (rdev->desc->vsel_reg == RT6160_REG_VSELL)
suspend_vsel_reg = RT6160_REG_VSELH;
else
suspend_vsel_reg = RT6160_REG_VSELL;
return regmap_update_bits(regmap, suspend_vsel_reg,
RT6160_VSEL_MASK, vsel);
}
static int rt6160_get_error_flags(struct regulator_dev *rdev, unsigned int *flags)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int val, events = 0;
int ret;
ret = regmap_read(regmap, RT6160_REG_STATUS, &val);
if (ret)
return ret;
if (val & (RT6160_HDSTAT_MASK | RT6160_TSDSTAT_MASK))
events |= REGULATOR_ERROR_OVER_TEMP;
if (val & RT6160_UVSTAT_MASK)
events |= REGULATOR_ERROR_UNDER_VOLTAGE;
if (val & RT6160_OCSTAT_MASK)
events |= REGULATOR_ERROR_OVER_CURRENT;
if (val & RT6160_PGSTAT_MASK)
events |= REGULATOR_ERROR_FAIL;
*flags = events;
return 0;
}
static const struct regulator_ops rt6160_regulator_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = rt6160_enable,
.disable = rt6160_disable,
.is_enabled = rt6160_is_enabled,
.set_mode = rt6160_set_mode,
.get_mode = rt6160_get_mode,
.set_suspend_voltage = rt6160_set_suspend_voltage,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.get_error_flags = rt6160_get_error_flags,
};
static unsigned int rt6160_of_map_mode(unsigned int mode)
{
switch (mode) {
case RT6160_MODE_FPWM:
return REGULATOR_MODE_FAST;
case RT6160_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
}
return REGULATOR_MODE_INVALID;
}
static bool rt6160_is_accessible_reg(struct device *dev, unsigned int reg)
{
if (reg >= RT6160_REG_CNTL && reg <= RT6160_REG_VSELH)
return true;
return false;
}
static bool rt6160_is_volatile_reg(struct device *dev, unsigned int reg)
{
if (reg == RT6160_REG_STATUS)
return true;
return false;
}
static const struct regmap_config rt6160_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RT6160_REG_VSELH,
.num_reg_defaults_raw = RT6160_NUM_REGS,
.cache_type = REGCACHE_FLAT,
.writeable_reg = rt6160_is_accessible_reg,
.readable_reg = rt6160_is_accessible_reg,
.volatile_reg = rt6160_is_volatile_reg,
};
static int rt6160_probe(struct i2c_client *i2c)
{
struct rt6160_priv *priv;
struct regulator_config regulator_cfg = {};
struct regulator_dev *rdev;
bool vsel_active_low;
unsigned int devid;
int ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
vsel_active_low =
device_property_present(&i2c->dev, "richtek,vsel-active-low");
priv->enable_gpio = devm_gpiod_get_optional(&i2c->dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(priv->enable_gpio)) {
dev_err(&i2c->dev, "Failed to get 'enable' gpio\n");
return PTR_ERR(priv->enable_gpio);
}
priv->enable_state = true;
usleep_range(RT6160_I2CRDY_TIMEUS, RT6160_I2CRDY_TIMEUS + 100);
priv->regmap = devm_regmap_init_i2c(i2c, &rt6160_regmap_config);
if (IS_ERR(priv->regmap)) {
ret = PTR_ERR(priv->regmap);
dev_err(&i2c->dev, "Failed to init regmap (%d)\n", ret);
return ret;
}
ret = regmap_read(priv->regmap, RT6160_REG_DEVID, &devid);
if (ret)
return ret;
if ((devid & RT6160_VID_MASK) != RT6160_VENDOR_ID) {
dev_err(&i2c->dev, "VID not correct [0x%02x]\n", devid);
return -ENODEV;
}
priv->desc.name = "rt6160-buckboost";
priv->desc.type = REGULATOR_VOLTAGE;
priv->desc.owner = THIS_MODULE;
priv->desc.min_uV = RT6160_VOUT_MINUV;
priv->desc.uV_step = RT6160_VOUT_STPUV;
if (vsel_active_low)
priv->desc.vsel_reg = RT6160_REG_VSELL;
else
priv->desc.vsel_reg = RT6160_REG_VSELH;
priv->desc.vsel_mask = RT6160_VSEL_MASK;
priv->desc.n_voltages = RT6160_N_VOUTS;
priv->desc.ramp_reg = RT6160_REG_CNTL;
priv->desc.ramp_mask = RT6160_RAMPRATE_MASK;
priv->desc.ramp_delay_table = rt6160_ramp_tables;
priv->desc.n_ramp_values = ARRAY_SIZE(rt6160_ramp_tables);
priv->desc.of_map_mode = rt6160_of_map_mode;
priv->desc.ops = &rt6160_regulator_ops;
regulator_cfg.dev = &i2c->dev;
regulator_cfg.of_node = i2c->dev.of_node;
regulator_cfg.regmap = priv->regmap;
regulator_cfg.driver_data = priv;
regulator_cfg.init_data = of_get_regulator_init_data(&i2c->dev, i2c->dev.of_node,
&priv->desc);
rdev = devm_regulator_register(&i2c->dev, &priv->desc, ®ulator_cfg);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to register regulator\n");
return PTR_ERR(rdev);
}
return 0;
}
static const struct of_device_id __maybe_unused rt6160_of_match_table[] = {
{ .compatible = "richtek,rt6160", },
{}
};
MODULE_DEVICE_TABLE(of, rt6160_of_match_table);
static struct i2c_driver rt6160_driver = {
.driver = {
.name = "rt6160",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = rt6160_of_match_table,
},
.probe = rt6160_probe,
};
module_i2c_driver(rt6160_driver);
MODULE_DESCRIPTION("Richtek RT6160 voltage regulator driver");
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rt6160-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// da9211-regulator.c - Regulator device driver for DA9211/DA9212
// /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
// Copyright (C) 2015 Dialog Semiconductor Ltd.
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/gpio/consumer.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/da9211.h>
#include <dt-bindings/regulator/dlg,da9211-regulator.h>
#include "da9211-regulator.h"
/* DEVICE IDs */
#define DA9211_DEVICE_ID 0x22
#define DA9213_DEVICE_ID 0x23
#define DA9215_DEVICE_ID 0x24
/* DA9211 REGULATOR IDs */
#define DA9211_ID_BUCKA 0
#define DA9211_ID_BUCKB 1
struct da9211 {
struct device *dev;
struct regmap *regmap;
struct da9211_pdata *pdata;
struct regulator_dev *rdev[DA9211_MAX_REGULATORS];
int num_regulator;
int chip_irq;
int chip_id;
};
static const struct regmap_range_cfg da9211_regmap_range[] = {
{
.selector_reg = DA9211_REG_PAGE_CON,
.selector_mask = DA9211_REG_PAGE_MASK,
.selector_shift = DA9211_REG_PAGE_SHIFT,
.window_start = 0,
.window_len = 256,
.range_min = 0,
.range_max = 5*128,
},
};
static bool da9211_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case DA9211_REG_STATUS_A:
case DA9211_REG_STATUS_B:
case DA9211_REG_EVENT_A:
case DA9211_REG_EVENT_B:
return true;
}
return false;
}
static const struct regmap_config da9211_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 5 * 128,
.volatile_reg = da9211_volatile_reg,
.cache_type = REGCACHE_RBTREE,
.ranges = da9211_regmap_range,
.num_ranges = ARRAY_SIZE(da9211_regmap_range),
};
/* Default limits measured in millivolts and milliamps */
#define DA9211_MIN_MV 300
#define DA9211_MAX_MV 1570
#define DA9211_STEP_MV 10
/* Current limits for DA9211 buck (uA) indices
* corresponds with register values
*/
static const int da9211_current_limits[] = {
2000000, 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000,
3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000
};
/* Current limits for DA9213 buck (uA) indices
* corresponds with register values
*/
static const int da9213_current_limits[] = {
3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000
};
/* Current limits for DA9215 buck (uA) indices
* corresponds with register values
*/
static const int da9215_current_limits[] = {
4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000,
5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000
};
static unsigned int da9211_map_buck_mode(unsigned int mode)
{
switch (mode) {
case DA9211_BUCK_MODE_SLEEP:
return REGULATOR_MODE_STANDBY;
case DA9211_BUCK_MODE_SYNC:
return REGULATOR_MODE_FAST;
case DA9211_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
default:
return REGULATOR_MODE_INVALID;
}
}
static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
{
int id = rdev_get_id(rdev);
struct da9211 *chip = rdev_get_drvdata(rdev);
unsigned int data;
int ret, mode = 0;
ret = regmap_read(chip->regmap, DA9211_REG_BUCKA_CONF+id, &data);
if (ret < 0)
return ret;
switch (data & 0x03) {
case DA9211_BUCK_MODE_SYNC:
mode = REGULATOR_MODE_FAST;
break;
case DA9211_BUCK_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case DA9211_BUCK_MODE_SLEEP:
mode = REGULATOR_MODE_STANDBY;
break;
}
return mode;
}
static int da9211_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
int id = rdev_get_id(rdev);
struct da9211 *chip = rdev_get_drvdata(rdev);
int val = 0;
switch (mode) {
case REGULATOR_MODE_FAST:
val = DA9211_BUCK_MODE_SYNC;
break;
case REGULATOR_MODE_NORMAL:
val = DA9211_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = DA9211_BUCK_MODE_SLEEP;
break;
}
return regmap_update_bits(chip->regmap, DA9211_REG_BUCKA_CONF+id,
0x03, val);
}
static int da9211_set_current_limit(struct regulator_dev *rdev, int min,
int max)
{
int id = rdev_get_id(rdev);
struct da9211 *chip = rdev_get_drvdata(rdev);
int i, max_size;
const int *current_limits;
switch (chip->chip_id) {
case DA9211:
current_limits = da9211_current_limits;
max_size = ARRAY_SIZE(da9211_current_limits)-1;
break;
case DA9213:
current_limits = da9213_current_limits;
max_size = ARRAY_SIZE(da9213_current_limits)-1;
break;
case DA9215:
current_limits = da9215_current_limits;
max_size = ARRAY_SIZE(da9215_current_limits)-1;
break;
default:
return -EINVAL;
}
/* search for closest to maximum */
for (i = max_size; i >= 0; i--) {
if (min <= current_limits[i] &&
max >= current_limits[i]) {
return regmap_update_bits(chip->regmap,
DA9211_REG_BUCK_ILIM,
(0x0F << id*4), (i << id*4));
}
}
return -EINVAL;
}
static int da9211_get_current_limit(struct regulator_dev *rdev)
{
int id = rdev_get_id(rdev);
struct da9211 *chip = rdev_get_drvdata(rdev);
unsigned int data;
int ret;
const int *current_limits;
switch (chip->chip_id) {
case DA9211:
current_limits = da9211_current_limits;
break;
case DA9213:
current_limits = da9213_current_limits;
break;
case DA9215:
current_limits = da9215_current_limits;
break;
default:
return -EINVAL;
}
ret = regmap_read(chip->regmap, DA9211_REG_BUCK_ILIM, &data);
if (ret < 0)
return ret;
/* select one of 16 values: 0000 (2000mA or 3000mA)
* to 1111 (5000mA or 6000mA).
*/
data = (data >> id*4) & 0x0F;
return current_limits[data];
}
static const struct regulator_ops da9211_buck_ops = {
.get_mode = da9211_buck_get_mode,
.set_mode = da9211_buck_set_mode,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_current_limit = da9211_set_current_limit,
.get_current_limit = da9211_get_current_limit,
};
#define DA9211_BUCK(_id) \
{\
.name = #_id,\
.ops = &da9211_buck_ops,\
.type = REGULATOR_VOLTAGE,\
.id = DA9211_ID_##_id,\
.n_voltages = (DA9211_MAX_MV - DA9211_MIN_MV) / DA9211_STEP_MV + 1,\
.min_uV = (DA9211_MIN_MV * 1000),\
.uV_step = (DA9211_STEP_MV * 1000),\
.enable_reg = DA9211_REG_BUCKA_CONT + DA9211_ID_##_id,\
.enable_mask = DA9211_BUCKA_EN,\
.vsel_reg = DA9211_REG_VBUCKA_A + DA9211_ID_##_id * 2,\
.vsel_mask = DA9211_VBUCK_MASK,\
.owner = THIS_MODULE,\
.of_map_mode = da9211_map_buck_mode,\
}
static struct regulator_desc da9211_regulators[] = {
DA9211_BUCK(BUCKA),
DA9211_BUCK(BUCKB),
};
#ifdef CONFIG_OF
static struct of_regulator_match da9211_matches[] = {
[DA9211_ID_BUCKA] = {
.name = "BUCKA",
.desc = &da9211_regulators[DA9211_ID_BUCKA],
},
[DA9211_ID_BUCKB] = {
.name = "BUCKB",
.desc = &da9211_regulators[DA9211_ID_BUCKB],
},
};
static struct da9211_pdata *da9211_parse_regulators_dt(
struct device *dev)
{
struct da9211_pdata *pdata;
struct device_node *node;
int i, num, n;
node = of_get_child_by_name(dev->of_node, "regulators");
if (!node) {
dev_err(dev, "regulators node not found\n");
return ERR_PTR(-ENODEV);
}
num = of_regulator_match(dev, node, da9211_matches,
ARRAY_SIZE(da9211_matches));
of_node_put(node);
if (num < 0) {
dev_err(dev, "Failed to match regulators\n");
return ERR_PTR(-EINVAL);
}
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
pdata->num_buck = num;
n = 0;
for (i = 0; i < ARRAY_SIZE(da9211_matches); i++) {
if (!da9211_matches[i].init_data)
continue;
pdata->init_data[n] = da9211_matches[i].init_data;
pdata->reg_node[n] = da9211_matches[i].of_node;
pdata->gpiod_ren[n] = devm_fwnode_gpiod_get(dev,
of_fwnode_handle(pdata->reg_node[n]),
"enable",
GPIOD_OUT_HIGH |
GPIOD_FLAGS_BIT_NONEXCLUSIVE,
"da9211-enable");
if (IS_ERR(pdata->gpiod_ren[n]))
pdata->gpiod_ren[n] = NULL;
n++;
}
return pdata;
}
#else
static struct da9211_pdata *da9211_parse_regulators_dt(
struct device *dev)
{
return ERR_PTR(-ENODEV);
}
#endif
static irqreturn_t da9211_irq_handler(int irq, void *data)
{
struct da9211 *chip = data;
int reg_val, err, ret = IRQ_NONE;
err = regmap_read(chip->regmap, DA9211_REG_EVENT_B, ®_val);
if (err < 0)
goto error_i2c;
if (reg_val & DA9211_E_OV_CURR_A) {
regulator_notifier_call_chain(chip->rdev[0],
REGULATOR_EVENT_OVER_CURRENT, NULL);
err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
DA9211_E_OV_CURR_A);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
if (reg_val & DA9211_E_OV_CURR_B) {
regulator_notifier_call_chain(chip->rdev[1],
REGULATOR_EVENT_OVER_CURRENT, NULL);
err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
DA9211_E_OV_CURR_B);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
return ret;
error_i2c:
dev_err(chip->dev, "I2C error : %d\n", err);
return IRQ_NONE;
}
static int da9211_regulator_init(struct da9211 *chip)
{
struct regulator_config config = { };
int i, ret;
unsigned int data;
ret = regmap_read(chip->regmap, DA9211_REG_CONFIG_E, &data);
if (ret < 0) {
dev_err(chip->dev, "Failed to read CONFIG_E reg: %d\n", ret);
return ret;
}
data &= DA9211_SLAVE_SEL;
/* If configuration for 1/2 bucks is different between platform data
* and the register, driver should exit.
*/
if (chip->pdata->num_buck == 1 && data == 0x00)
chip->num_regulator = 1;
else if (chip->pdata->num_buck == 2 && data != 0x00)
chip->num_regulator = 2;
else {
dev_err(chip->dev, "Configuration is mismatched\n");
return -EINVAL;
}
for (i = 0; i < chip->num_regulator; i++) {
config.init_data = chip->pdata->init_data[i];
config.dev = chip->dev;
config.driver_data = chip;
config.regmap = chip->regmap;
config.of_node = chip->pdata->reg_node[i];
if (chip->pdata->gpiod_ren[i])
config.ena_gpiod = chip->pdata->gpiod_ren[i];
else
config.ena_gpiod = NULL;
/*
* Hand the GPIO descriptor management over to the regulator
* core, remove it from GPIO devres management.
*/
if (config.ena_gpiod)
devm_gpiod_unhinge(chip->dev, config.ena_gpiod);
chip->rdev[i] = devm_regulator_register(chip->dev,
&da9211_regulators[i], &config);
if (IS_ERR(chip->rdev[i])) {
dev_err(chip->dev,
"Failed to register DA9211 regulator\n");
return PTR_ERR(chip->rdev[i]);
}
if (chip->chip_irq != 0) {
ret = regmap_update_bits(chip->regmap,
DA9211_REG_MASK_B, DA9211_M_OV_CURR_A << i, 0);
if (ret < 0) {
dev_err(chip->dev,
"Failed to update mask reg: %d\n", ret);
return ret;
}
}
}
return 0;
}
/*
* I2C driver interface functions
*/
static int da9211_i2c_probe(struct i2c_client *i2c)
{
struct da9211 *chip;
int error, ret;
unsigned int data;
chip = devm_kzalloc(&i2c->dev, sizeof(struct da9211), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->dev = &i2c->dev;
chip->regmap = devm_regmap_init_i2c(i2c, &da9211_regmap_config);
if (IS_ERR(chip->regmap)) {
error = PTR_ERR(chip->regmap);
dev_err(chip->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
i2c_set_clientdata(i2c, chip);
chip->pdata = i2c->dev.platform_data;
ret = regmap_read(chip->regmap, DA9211_REG_DEVICE_ID, &data);
if (ret < 0) {
dev_err(chip->dev, "Failed to read DEVICE_ID reg: %d\n", ret);
return ret;
}
switch (data) {
case DA9211_DEVICE_ID:
chip->chip_id = DA9211;
break;
case DA9213_DEVICE_ID:
chip->chip_id = DA9213;
break;
case DA9215_DEVICE_ID:
chip->chip_id = DA9215;
break;
default:
dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data);
return -ENODEV;
}
if (!chip->pdata)
chip->pdata = da9211_parse_regulators_dt(chip->dev);
if (IS_ERR(chip->pdata)) {
dev_err(chip->dev, "No regulators defined for the platform\n");
return PTR_ERR(chip->pdata);
}
chip->chip_irq = i2c->irq;
ret = da9211_regulator_init(chip);
if (ret < 0) {
dev_err(chip->dev, "Failed to initialize regulator: %d\n", ret);
return ret;
}
if (chip->chip_irq != 0) {
ret = devm_request_threaded_irq(chip->dev, chip->chip_irq, NULL,
da9211_irq_handler,
IRQF_TRIGGER_LOW|IRQF_ONESHOT,
"da9211", chip);
if (ret != 0) {
dev_err(chip->dev, "Failed to request IRQ: %d\n",
chip->chip_irq);
return ret;
}
} else {
dev_warn(chip->dev, "No IRQ configured\n");
}
return ret;
}
static const struct i2c_device_id da9211_i2c_id[] = {
{"da9211", DA9211},
{"da9212", DA9212},
{"da9213", DA9213},
{"da9223", DA9223},
{"da9214", DA9214},
{"da9224", DA9224},
{"da9215", DA9215},
{"da9225", DA9225},
{},
};
MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id da9211_dt_ids[] = {
{ .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] },
{ .compatible = "dlg,da9212", .data = &da9211_i2c_id[1] },
{ .compatible = "dlg,da9213", .data = &da9211_i2c_id[2] },
{ .compatible = "dlg,da9223", .data = &da9211_i2c_id[3] },
{ .compatible = "dlg,da9214", .data = &da9211_i2c_id[4] },
{ .compatible = "dlg,da9224", .data = &da9211_i2c_id[5] },
{ .compatible = "dlg,da9215", .data = &da9211_i2c_id[6] },
{ .compatible = "dlg,da9225", .data = &da9211_i2c_id[7] },
{},
};
MODULE_DEVICE_TABLE(of, da9211_dt_ids);
#endif
static struct i2c_driver da9211_regulator_driver = {
.driver = {
.name = "da9211",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(da9211_dt_ids),
},
.probe = da9211_i2c_probe,
.id_table = da9211_i2c_id,
};
module_i2c_driver(da9211_regulator_driver);
MODULE_AUTHOR("James Ban <[email protected]>");
MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/da9211-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2016 MediaTek Inc.
// Author: Chen Zhong <[email protected]>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6323/registers.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6323-regulator.h>
#include <linux/regulator/of_regulator.h>
#define MT6323_LDO_MODE_NORMAL 0
#define MT6323_LDO_MODE_LP 1
/*
* MT6323 regulators' information
*
* @desc: standard fields of regulator description.
* @qi: Mask for query enable signal status of regulators
* @vselon_reg: Register sections for hardware control mode of bucks
* @vselctrl_reg: Register for controlling the buck control mode.
* @vselctrl_mask: Mask for query buck's voltage control mode.
*/
struct mt6323_regulator_info {
struct regulator_desc desc;
u32 qi;
u32 vselon_reg;
u32 vselctrl_reg;
u32 vselctrl_mask;
u32 modeset_reg;
u32 modeset_mask;
};
#define MT6323_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \
vosel, vosel_mask, voselon, vosel_ctrl) \
[MT6323_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6323_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6323_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = (max - min)/step + 1, \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(0), \
}, \
.qi = BIT(13), \
.vselon_reg = voselon, \
.vselctrl_reg = vosel_ctrl, \
.vselctrl_mask = BIT(1), \
}
#define MT6323_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \
vosel_mask, _modeset_reg, _modeset_mask) \
[MT6323_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6323_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6323_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(ldo_volt_table), \
.volt_table = ldo_volt_table, \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.qi = BIT(15), \
.modeset_reg = _modeset_reg, \
.modeset_mask = _modeset_mask, \
}
#define MT6323_REG_FIXED(match, vreg, enreg, enbit, volt, \
_modeset_reg, _modeset_mask) \
[MT6323_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6323_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6323_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
.min_uV = volt, \
}, \
.qi = BIT(15), \
.modeset_reg = _modeset_reg, \
.modeset_mask = _modeset_mask, \
}
static const struct linear_range buck_volt_range1[] = {
REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250),
};
static const struct linear_range buck_volt_range2[] = {
REGULATOR_LINEAR_RANGE(1400000, 0, 0x7f, 12500),
};
static const struct linear_range buck_volt_range3[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
};
static const unsigned int ldo_volt_table1[] = {
3300000, 3400000, 3500000, 3600000,
};
static const unsigned int ldo_volt_table2[] = {
1500000, 1800000, 2500000, 2800000,
};
static const unsigned int ldo_volt_table3[] = {
1800000, 3300000,
};
static const unsigned int ldo_volt_table4[] = {
3000000, 3300000,
};
static const unsigned int ldo_volt_table5[] = {
1200000, 1300000, 1500000, 1800000, 2000000, 2800000, 3000000, 3300000,
};
static const unsigned int ldo_volt_table6[] = {
1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 2000000,
};
static const unsigned int ldo_volt_table7[] = {
1200000, 1300000, 1500000, 1800000,
};
static const unsigned int ldo_volt_table8[] = {
1800000, 3000000,
};
static const unsigned int ldo_volt_table9[] = {
1200000, 1350000, 1500000, 1800000,
};
static const unsigned int ldo_volt_table10[] = {
1200000, 1300000, 1500000, 1800000,
};
static int mt6323_get_status(struct regulator_dev *rdev)
{
int ret;
u32 regval;
struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
ret = regmap_read(rdev->regmap, info->desc.enable_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}
return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
}
static int mt6323_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
int ret, val = 0;
struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
if (!info->modeset_mask) {
dev_err(&rdev->dev, "regulator %s doesn't support set_mode\n",
info->desc.name);
return -EINVAL;
}
switch (mode) {
case REGULATOR_MODE_STANDBY:
val = MT6323_LDO_MODE_LP;
break;
case REGULATOR_MODE_NORMAL:
val = MT6323_LDO_MODE_NORMAL;
break;
default:
return -EINVAL;
}
val <<= ffs(info->modeset_mask) - 1;
ret = regmap_update_bits(rdev->regmap, info->modeset_reg,
info->modeset_mask, val);
return ret;
}
static unsigned int mt6323_ldo_get_mode(struct regulator_dev *rdev)
{
unsigned int val;
unsigned int mode;
int ret;
struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
if (!info->modeset_mask) {
dev_err(&rdev->dev, "regulator %s doesn't support get_mode\n",
info->desc.name);
return -EINVAL;
}
ret = regmap_read(rdev->regmap, info->modeset_reg, &val);
if (ret < 0)
return ret;
val &= info->modeset_mask;
val >>= ffs(info->modeset_mask) - 1;
if (val & 0x1)
mode = REGULATOR_MODE_STANDBY;
else
mode = REGULATOR_MODE_NORMAL;
return mode;
}
static const struct regulator_ops mt6323_volt_range_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6323_get_status,
};
static const struct regulator_ops mt6323_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6323_get_status,
.set_mode = mt6323_ldo_set_mode,
.get_mode = mt6323_ldo_get_mode,
};
static const struct regulator_ops mt6323_volt_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6323_get_status,
.set_mode = mt6323_ldo_set_mode,
.get_mode = mt6323_ldo_get_mode,
};
/* The array is indexed by id(MT6323_ID_XXX) */
static struct mt6323_regulator_info mt6323_regulators[] = {
MT6323_BUCK("buck_vproc", VPROC, 700000, 1493750, 6250,
buck_volt_range1, MT6323_VPROC_CON7, MT6323_VPROC_CON9, 0x7f,
MT6323_VPROC_CON10, MT6323_VPROC_CON5),
MT6323_BUCK("buck_vsys", VSYS, 1400000, 2987500, 12500,
buck_volt_range2, MT6323_VSYS_CON7, MT6323_VSYS_CON9, 0x7f,
MT6323_VSYS_CON10, MT6323_VSYS_CON5),
MT6323_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
buck_volt_range3, MT6323_VPA_CON7, MT6323_VPA_CON9,
0x3f, MT6323_VPA_CON10, MT6323_VPA_CON5),
MT6323_REG_FIXED("ldo_vtcxo", VTCXO, MT6323_ANALDO_CON1, 10, 2800000,
MT6323_ANALDO_CON1, 0x2),
MT6323_REG_FIXED("ldo_vcn28", VCN28, MT6323_ANALDO_CON19, 12, 2800000,
MT6323_ANALDO_CON20, 0x2),
MT6323_LDO("ldo_vcn33_bt", VCN33_BT, ldo_volt_table1,
MT6323_ANALDO_CON16, 7, MT6323_ANALDO_CON16, 0xC,
MT6323_ANALDO_CON21, 0x2),
MT6323_LDO("ldo_vcn33_wifi", VCN33_WIFI, ldo_volt_table1,
MT6323_ANALDO_CON17, 12, MT6323_ANALDO_CON16, 0xC,
MT6323_ANALDO_CON21, 0x2),
MT6323_REG_FIXED("ldo_va", VA, MT6323_ANALDO_CON2, 14, 2800000,
MT6323_ANALDO_CON2, 0x2),
MT6323_LDO("ldo_vcama", VCAMA, ldo_volt_table2,
MT6323_ANALDO_CON4, 15, MT6323_ANALDO_CON10, 0x60, -1, 0),
MT6323_REG_FIXED("ldo_vio28", VIO28, MT6323_DIGLDO_CON0, 14, 2800000,
MT6323_DIGLDO_CON0, 0x2),
MT6323_REG_FIXED("ldo_vusb", VUSB, MT6323_DIGLDO_CON2, 14, 3300000,
MT6323_DIGLDO_CON2, 0x2),
MT6323_LDO("ldo_vmc", VMC, ldo_volt_table3,
MT6323_DIGLDO_CON3, 12, MT6323_DIGLDO_CON24, 0x10,
MT6323_DIGLDO_CON3, 0x2),
MT6323_LDO("ldo_vmch", VMCH, ldo_volt_table4,
MT6323_DIGLDO_CON5, 14, MT6323_DIGLDO_CON26, 0x80,
MT6323_DIGLDO_CON5, 0x2),
MT6323_LDO("ldo_vemc3v3", VEMC3V3, ldo_volt_table4,
MT6323_DIGLDO_CON6, 14, MT6323_DIGLDO_CON27, 0x80,
MT6323_DIGLDO_CON6, 0x2),
MT6323_LDO("ldo_vgp1", VGP1, ldo_volt_table5,
MT6323_DIGLDO_CON7, 15, MT6323_DIGLDO_CON28, 0xE0,
MT6323_DIGLDO_CON7, 0x2),
MT6323_LDO("ldo_vgp2", VGP2, ldo_volt_table6,
MT6323_DIGLDO_CON8, 15, MT6323_DIGLDO_CON29, 0xE0,
MT6323_DIGLDO_CON8, 0x2),
MT6323_LDO("ldo_vgp3", VGP3, ldo_volt_table7,
MT6323_DIGLDO_CON9, 15, MT6323_DIGLDO_CON30, 0x60,
MT6323_DIGLDO_CON9, 0x2),
MT6323_REG_FIXED("ldo_vcn18", VCN18, MT6323_DIGLDO_CON11, 14, 1800000,
MT6323_DIGLDO_CON11, 0x2),
MT6323_LDO("ldo_vsim1", VSIM1, ldo_volt_table8,
MT6323_DIGLDO_CON13, 15, MT6323_DIGLDO_CON34, 0x20,
MT6323_DIGLDO_CON13, 0x2),
MT6323_LDO("ldo_vsim2", VSIM2, ldo_volt_table8,
MT6323_DIGLDO_CON14, 15, MT6323_DIGLDO_CON35, 0x20,
MT6323_DIGLDO_CON14, 0x2),
MT6323_REG_FIXED("ldo_vrtc", VRTC, MT6323_DIGLDO_CON15, 8, 2800000,
-1, 0),
MT6323_LDO("ldo_vcamaf", VCAMAF, ldo_volt_table5,
MT6323_DIGLDO_CON31, 15, MT6323_DIGLDO_CON32, 0xE0,
MT6323_DIGLDO_CON31, 0x2),
MT6323_LDO("ldo_vibr", VIBR, ldo_volt_table5,
MT6323_DIGLDO_CON39, 15, MT6323_DIGLDO_CON40, 0xE0,
MT6323_DIGLDO_CON39, 0x2),
MT6323_REG_FIXED("ldo_vrf18", VRF18, MT6323_DIGLDO_CON45, 15, 1825000,
MT6323_DIGLDO_CON45, 0x2),
MT6323_LDO("ldo_vm", VM, ldo_volt_table9,
MT6323_DIGLDO_CON47, 14, MT6323_DIGLDO_CON48, 0x30,
MT6323_DIGLDO_CON47, 0x2),
MT6323_REG_FIXED("ldo_vio18", VIO18, MT6323_DIGLDO_CON49, 14, 1800000,
MT6323_DIGLDO_CON49, 0x2),
MT6323_LDO("ldo_vcamd", VCAMD, ldo_volt_table10,
MT6323_DIGLDO_CON51, 14, MT6323_DIGLDO_CON52, 0x60,
MT6323_DIGLDO_CON51, 0x2),
MT6323_REG_FIXED("ldo_vcamio", VCAMIO, MT6323_DIGLDO_CON53, 14, 1800000,
MT6323_DIGLDO_CON53, 0x2),
};
static int mt6323_set_buck_vosel_reg(struct platform_device *pdev)
{
struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent);
int i;
u32 regval;
for (i = 0; i < MT6323_MAX_REGULATOR; i++) {
if (mt6323_regulators[i].vselctrl_reg) {
if (regmap_read(mt6323->regmap,
mt6323_regulators[i].vselctrl_reg,
®val) < 0) {
dev_err(&pdev->dev,
"Failed to read buck ctrl\n");
return -EIO;
}
if (regval & mt6323_regulators[i].vselctrl_mask) {
mt6323_regulators[i].desc.vsel_reg =
mt6323_regulators[i].vselon_reg;
}
}
}
return 0;
}
static int mt6323_regulator_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rdev;
int i;
u32 reg_value;
/* Query buck controller to select activated voltage register part */
if (mt6323_set_buck_vosel_reg(pdev))
return -EIO;
/* Read PMIC chip revision to update constraints and voltage table */
if (regmap_read(mt6323->regmap, MT6323_CID, ®_value) < 0) {
dev_err(&pdev->dev, "Failed to read Chip ID\n");
return -EIO;
}
dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value);
for (i = 0; i < MT6323_MAX_REGULATOR; i++) {
config.dev = &pdev->dev;
config.driver_data = &mt6323_regulators[i];
config.regmap = mt6323->regmap;
rdev = devm_regulator_register(&pdev->dev,
&mt6323_regulators[i].desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",
mt6323_regulators[i].desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id mt6323_platform_ids[] = {
{"mt6323-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6323_platform_ids);
static struct platform_driver mt6323_regulator_driver = {
.driver = {
.name = "mt6323-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = mt6323_regulator_probe,
.id_table = mt6323_platform_ids,
};
module_platform_driver(mt6323_regulator_driver);
MODULE_AUTHOR("Chen Zhong <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6323 PMIC");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/mt6323-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Device driver for regulators in Hisi IC
//
// Copyright (c) 2013 Linaro Ltd.
// Copyright (c) 2011 HiSilicon Ltd.
// Copyright (c) 2020-2021 Huawei Technologies Co., Ltd.
//
// Guodong Xu <[email protected]>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/spmi.h>
struct hi6421_spmi_reg_priv {
/* Serialize regulator enable logic */
struct mutex enable_mutex;
};
struct hi6421_spmi_reg_info {
struct regulator_desc desc;
u8 eco_mode_mask;
u32 eco_uA;
};
static const unsigned int range_1v5_to_2v0[] = {
1500000, 1550000, 1600000, 1650000,
1700000, 1725000, 1750000, 1775000,
1800000, 1825000, 1850000, 1875000,
1900000, 1925000, 1950000, 2000000
};
static const unsigned int range_1v725_to_1v9[] = {
1725000, 1750000, 1775000, 1800000,
1825000, 1850000, 1875000, 1900000
};
static const unsigned int range_1v75_to_3v3[] = {
1750000, 1800000, 1825000, 2800000,
2850000, 2950000, 3000000, 3300000
};
static const unsigned int range_1v8_to_3v0[] = {
1800000, 1850000, 2400000, 2600000,
2700000, 2850000, 2950000, 3000000
};
static const unsigned int range_2v5_to_3v3[] = {
2500000, 2600000, 2700000, 2800000,
3000000, 3100000, 3200000, 3300000
};
static const unsigned int range_2v6_to_3v3[] = {
2600000, 2700000, 2800000, 2900000,
3000000, 3100000, 3200000, 3300000
};
/**
* HI6421V600_LDO() - specify a LDO power line
* @_id: LDO id name string
* @vtable: voltage table
* @ereg: enable register
* @emask: enable mask
* @vreg: voltage select register
* @odelay: off/on delay time in uS
* @etime: enable time in uS
* @ecomask: eco mode mask
* @ecoamp: eco mode load uppler limit in uA
*/
#define HI6421V600_LDO(_id, vtable, ereg, emask, vreg, \
odelay, etime, ecomask, ecoamp) \
[hi6421v600_##_id] = { \
.desc = { \
.name = #_id, \
.of_match = of_match_ptr(#_id), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &hi6421_spmi_ldo_rops, \
.type = REGULATOR_VOLTAGE, \
.id = hi6421v600_##_id, \
.owner = THIS_MODULE, \
.volt_table = vtable, \
.n_voltages = ARRAY_SIZE(vtable), \
.vsel_mask = ARRAY_SIZE(vtable) - 1, \
.vsel_reg = vreg, \
.enable_reg = ereg, \
.enable_mask = emask, \
.enable_time = etime, \
.ramp_delay = etime, \
.off_on_delay = odelay, \
}, \
.eco_mode_mask = ecomask, \
.eco_uA = ecoamp, \
}
static int hi6421_spmi_regulator_enable(struct regulator_dev *rdev)
{
struct hi6421_spmi_reg_priv *priv = rdev_get_drvdata(rdev);
int ret;
/* cannot enable more than one regulator at one time */
mutex_lock(&priv->enable_mutex);
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
/* Avoid powering up multiple devices at the same time */
usleep_range(rdev->desc->off_on_delay, rdev->desc->off_on_delay + 60);
mutex_unlock(&priv->enable_mutex);
return ret;
}
static unsigned int hi6421_spmi_regulator_get_mode(struct regulator_dev *rdev)
{
struct hi6421_spmi_reg_info *sreg;
unsigned int reg_val;
sreg = container_of(rdev->desc, struct hi6421_spmi_reg_info, desc);
regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val);
if (reg_val & sreg->eco_mode_mask)
return REGULATOR_MODE_IDLE;
return REGULATOR_MODE_NORMAL;
}
static int hi6421_spmi_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct hi6421_spmi_reg_info *sreg;
unsigned int val;
sreg = container_of(rdev->desc, struct hi6421_spmi_reg_info, desc);
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = 0;
break;
case REGULATOR_MODE_IDLE:
if (!sreg->eco_mode_mask)
return -EINVAL;
val = sreg->eco_mode_mask;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
sreg->eco_mode_mask, val);
}
static unsigned int
hi6421_spmi_regulator_get_optimum_mode(struct regulator_dev *rdev,
int input_uV, int output_uV,
int load_uA)
{
struct hi6421_spmi_reg_info *sreg;
sreg = container_of(rdev->desc, struct hi6421_spmi_reg_info, desc);
if (!sreg->eco_uA || ((unsigned int)load_uA > sreg->eco_uA))
return REGULATOR_MODE_NORMAL;
return REGULATOR_MODE_IDLE;
}
static const struct regulator_ops hi6421_spmi_ldo_rops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = hi6421_spmi_regulator_enable,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_mode = hi6421_spmi_regulator_get_mode,
.set_mode = hi6421_spmi_regulator_set_mode,
.get_optimum_mode = hi6421_spmi_regulator_get_optimum_mode,
};
/* HI6421v600 regulators with known registers */
enum hi6421_spmi_regulator_id {
hi6421v600_ldo3,
hi6421v600_ldo4,
hi6421v600_ldo9,
hi6421v600_ldo15,
hi6421v600_ldo16,
hi6421v600_ldo17,
hi6421v600_ldo33,
hi6421v600_ldo34,
};
static struct hi6421_spmi_reg_info regulator_info[] = {
HI6421V600_LDO(ldo3, range_1v5_to_2v0,
0x16, 0x01, 0x51,
20000, 120,
0, 0),
HI6421V600_LDO(ldo4, range_1v725_to_1v9,
0x17, 0x01, 0x52,
20000, 120,
0x10, 10000),
HI6421V600_LDO(ldo9, range_1v75_to_3v3,
0x1c, 0x01, 0x57,
20000, 360,
0x10, 10000),
HI6421V600_LDO(ldo15, range_1v8_to_3v0,
0x21, 0x01, 0x5c,
20000, 360,
0x10, 10000),
HI6421V600_LDO(ldo16, range_1v8_to_3v0,
0x22, 0x01, 0x5d,
20000, 360,
0x10, 10000),
HI6421V600_LDO(ldo17, range_2v5_to_3v3,
0x23, 0x01, 0x5e,
20000, 120,
0x10, 10000),
HI6421V600_LDO(ldo33, range_2v5_to_3v3,
0x32, 0x01, 0x6d,
20000, 120,
0, 0),
HI6421V600_LDO(ldo34, range_2v6_to_3v3,
0x33, 0x01, 0x6e,
20000, 120,
0, 0),
};
static int hi6421_spmi_regulator_probe(struct platform_device *pdev)
{
struct device *pmic_dev = pdev->dev.parent;
struct regulator_config config = { };
struct hi6421_spmi_reg_priv *priv;
struct hi6421_spmi_reg_info *info;
struct device *dev = &pdev->dev;
struct regmap *regmap;
struct regulator_dev *rdev;
int i;
/*
* This driver is meant to be called by hi6421-spmi-core,
* which should first set drvdata. If this doesn't happen, hit
* a warn on and return.
*/
regmap = dev_get_drvdata(pmic_dev);
if (WARN_ON(!regmap))
return -ENODEV;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
mutex_init(&priv->enable_mutex);
for (i = 0; i < ARRAY_SIZE(regulator_info); i++) {
info = ®ulator_info[i];
config.dev = pdev->dev.parent;
config.driver_data = priv;
config.regmap = regmap;
rdev = devm_regulator_register(dev, &info->desc, &config);
if (IS_ERR(rdev)) {
dev_err(dev, "failed to register %s\n",
info->desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id hi6421_spmi_regulator_table[] = {
{ .name = "hi6421v600-regulator" },
{},
};
MODULE_DEVICE_TABLE(platform, hi6421_spmi_regulator_table);
static struct platform_driver hi6421_spmi_regulator_driver = {
.id_table = hi6421_spmi_regulator_table,
.driver = {
.name = "hi6421v600-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = hi6421_spmi_regulator_probe,
};
module_platform_driver(hi6421_spmi_regulator_driver);
MODULE_DESCRIPTION("Hi6421v600 SPMI regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/hi6421v600-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* tps65023-regulator.c
*
* Supports TPS65023 Regulator
*
* Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
/* Register definitions */
#define TPS65023_REG_VERSION 0
#define TPS65023_REG_PGOODZ 1
#define TPS65023_REG_MASK 2
#define TPS65023_REG_REG_CTRL 3
#define TPS65023_REG_CON_CTRL 4
#define TPS65023_REG_CON_CTRL2 5
#define TPS65023_REG_DEF_CORE 6
#define TPS65023_REG_DEFSLEW 7
#define TPS65023_REG_LDO_CTRL 8
/* PGOODZ bitfields */
#define TPS65023_PGOODZ_PWRFAILZ BIT(7)
#define TPS65023_PGOODZ_LOWBATTZ BIT(6)
#define TPS65023_PGOODZ_VDCDC1 BIT(5)
#define TPS65023_PGOODZ_VDCDC2 BIT(4)
#define TPS65023_PGOODZ_VDCDC3 BIT(3)
#define TPS65023_PGOODZ_LDO2 BIT(2)
#define TPS65023_PGOODZ_LDO1 BIT(1)
/* MASK bitfields */
#define TPS65023_MASK_PWRFAILZ BIT(7)
#define TPS65023_MASK_LOWBATTZ BIT(6)
#define TPS65023_MASK_VDCDC1 BIT(5)
#define TPS65023_MASK_VDCDC2 BIT(4)
#define TPS65023_MASK_VDCDC3 BIT(3)
#define TPS65023_MASK_LDO2 BIT(2)
#define TPS65023_MASK_LDO1 BIT(1)
/* REG_CTRL bitfields */
#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5)
#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4)
#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3)
#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
/* REG_CTRL2 bitfields */
#define TPS65023_REG_CTRL2_GO BIT(7)
#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
/* Number of step-down converters available */
#define TPS65023_NUM_DCDC 3
/* Number of LDO voltage regulators available */
#define TPS65023_NUM_LDO 2
/* Number of total regulators available */
#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO)
/* DCDCs */
#define TPS65023_DCDC_1 0
#define TPS65023_DCDC_2 1
#define TPS65023_DCDC_3 2
/* LDOs */
#define TPS65023_LDO_1 3
#define TPS65023_LDO_2 4
#define TPS65023_MAX_REG_ID TPS65023_LDO_2
#define TPS65023_REGULATOR_DCDC(_num, _t, _em) \
{ \
.name = "VDCDC"#_num, \
.of_match = of_match_ptr("VDCDC"#_num), \
.regulators_node = of_match_ptr("regulators"), \
.id = TPS65023_DCDC_##_num, \
.n_voltages = ARRAY_SIZE(_t), \
.ops = &tps65023_dcdc_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.volt_table = _t, \
.vsel_reg = TPS65023_REG_DEF_CORE, \
.vsel_mask = ARRAY_SIZE(_t) - 1, \
.enable_mask = _em, \
.enable_reg = TPS65023_REG_REG_CTRL, \
.apply_reg = TPS65023_REG_CON_CTRL2, \
.apply_bit = TPS65023_REG_CTRL2_GO, \
} \
#define TPS65023_REGULATOR_LDO(_num, _t, _vm) \
{ \
.name = "LDO"#_num, \
.of_match = of_match_ptr("LDO"#_num), \
.regulators_node = of_match_ptr("regulators"), \
.id = TPS65023_LDO_##_num, \
.n_voltages = ARRAY_SIZE(_t), \
.ops = &tps65023_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.volt_table = _t, \
.vsel_reg = TPS65023_REG_LDO_CTRL, \
.vsel_mask = _vm, \
.enable_mask = 1 << (_num), \
.enable_reg = TPS65023_REG_REG_CTRL, \
} \
/* Supported voltage values for regulators */
static const unsigned int VCORE_VSEL_table[] = {
800000, 825000, 850000, 875000,
900000, 925000, 950000, 975000,
1000000, 1025000, 1050000, 1075000,
1100000, 1125000, 1150000, 1175000,
1200000, 1225000, 1250000, 1275000,
1300000, 1325000, 1350000, 1375000,
1400000, 1425000, 1450000, 1475000,
1500000, 1525000, 1550000, 1600000,
};
static const unsigned int DCDC_FIXED_3300000_VSEL_table[] = {
3300000,
};
static const unsigned int DCDC_FIXED_1800000_VSEL_table[] = {
1800000,
};
/* Supported voltage values for LDO regulators for tps65020 */
static const unsigned int TPS65020_LDO_VSEL_table[] = {
1000000, 1050000, 1100000, 1300000,
1800000, 2500000, 3000000, 3300000,
};
/* Supported voltage values for LDO regulators
* for tps65021 and tps65023 */
static const unsigned int TPS65023_LDO1_VSEL_table[] = {
1000000, 1100000, 1300000, 1800000,
2200000, 2600000, 2800000, 3150000,
};
static const unsigned int TPS65023_LDO2_VSEL_table[] = {
1050000, 1200000, 1300000, 1800000,
2500000, 2800000, 3000000, 3300000,
};
/* PMIC details */
struct tps_pmic {
struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
const struct tps_driver_data *driver_data;
struct regmap *regmap;
};
/* Struct passed as driver data */
struct tps_driver_data {
const struct regulator_desc *desc;
u8 core_regulator;
};
static int tps65023_dcdc_get_voltage_sel(struct regulator_dev *dev)
{
struct tps_pmic *tps = rdev_get_drvdata(dev);
int dcdc = rdev_get_id(dev);
if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
return -EINVAL;
if (dcdc != tps->driver_data->core_regulator)
return 0;
return regulator_get_voltage_sel_regmap(dev);
}
static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct tps_pmic *tps = rdev_get_drvdata(dev);
int dcdc = rdev_get_id(dev);
if (dcdc != tps->driver_data->core_regulator)
return -EINVAL;
return regulator_set_voltage_sel_regmap(dev, selector);
}
/* Operations permitted on VDCDCx */
static const struct regulator_ops tps65023_dcdc_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = tps65023_dcdc_get_voltage_sel,
.set_voltage_sel = tps65023_dcdc_set_voltage_sel,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
};
/* Operations permitted on LDOx */
static const struct regulator_ops tps65023_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
};
static const struct regmap_config tps65023_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static const struct regulator_desc tps65020_regulators[] = {
TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20),
TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10),
TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08),
TPS65023_REGULATOR_LDO(1, TPS65020_LDO_VSEL_table, 0x07),
TPS65023_REGULATOR_LDO(2, TPS65020_LDO_VSEL_table, 0x70),
};
static const struct regulator_desc tps65021_regulators[] = {
TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20),
TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10),
TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08),
TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07),
TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70),
};
static const struct regulator_desc tps65023_regulators[] = {
TPS65023_REGULATOR_DCDC(1, VCORE_VSEL_table, 0x20),
TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_3300000_VSEL_table, 0x10),
TPS65023_REGULATOR_DCDC(3, DCDC_FIXED_1800000_VSEL_table, 0x08),
TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07),
TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70),
};
static struct tps_driver_data tps65020_drv_data = {
.desc = tps65020_regulators,
.core_regulator = TPS65023_DCDC_3,
};
static struct tps_driver_data tps65021_drv_data = {
.desc = tps65021_regulators,
.core_regulator = TPS65023_DCDC_3,
};
static struct tps_driver_data tps65023_drv_data = {
.desc = tps65023_regulators,
.core_regulator = TPS65023_DCDC_1,
};
static int tps_65023_probe(struct i2c_client *client)
{
const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct regulator_init_data *init_data = dev_get_platdata(&client->dev);
struct regulator_config config = { };
struct tps_pmic *tps;
int i;
int error;
tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
tps->driver_data = (struct tps_driver_data *)id->driver_data;
tps->regmap = devm_regmap_init_i2c(client, &tps65023_regmap_config);
if (IS_ERR(tps->regmap)) {
error = PTR_ERR(tps->regmap);
dev_err(&client->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
/* common for all regulators */
config.dev = &client->dev;
config.driver_data = tps;
config.regmap = tps->regmap;
for (i = 0; i < TPS65023_NUM_REGULATOR; i++) {
if (init_data)
config.init_data = &init_data[i];
/* Register the regulators */
tps->rdev[i] = devm_regulator_register(&client->dev,
&tps->driver_data->desc[i], &config);
if (IS_ERR(tps->rdev[i])) {
dev_err(&client->dev, "failed to register %s\n",
id->name);
return PTR_ERR(tps->rdev[i]);
}
}
i2c_set_clientdata(client, tps);
/* Enable setting output voltage by I2C */
regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
TPS65023_REG_CTRL2_CORE_ADJ, 0);
return 0;
}
static const struct of_device_id __maybe_unused tps65023_of_match[] = {
{ .compatible = "ti,tps65020", .data = &tps65020_drv_data},
{ .compatible = "ti,tps65021", .data = &tps65021_drv_data},
{ .compatible = "ti,tps65023", .data = &tps65023_drv_data},
{},
};
MODULE_DEVICE_TABLE(of, tps65023_of_match);
static const struct i2c_device_id tps_65023_id[] = {
{
.name = "tps65023",
.driver_data = (kernel_ulong_t)&tps65023_drv_data
}, {
.name = "tps65021",
.driver_data = (kernel_ulong_t)&tps65021_drv_data
}, {
.name = "tps65020",
.driver_data = (kernel_ulong_t)&tps65020_drv_data
},
{ },
};
MODULE_DEVICE_TABLE(i2c, tps_65023_id);
static struct i2c_driver tps_65023_i2c_driver = {
.driver = {
.name = "tps65023",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(tps65023_of_match),
},
.probe = tps_65023_probe,
.id_table = tps_65023_id,
};
static int __init tps_65023_init(void)
{
return i2c_add_driver(&tps_65023_i2c_driver);
}
subsys_initcall(tps_65023_init);
static void __exit tps_65023_cleanup(void)
{
i2c_del_driver(&tps_65023_i2c_driver);
}
module_exit(tps_65023_cleanup);
MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("TPS65023 voltage regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/tps65023-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Linear Technology LTC3589,LTC3589-1 regulator support
//
// Copyright (c) 2014 Philipp Zabel <[email protected]>, Pengutronix
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define DRIVER_NAME "ltc3589"
#define LTC3589_IRQSTAT 0x02
#define LTC3589_SCR1 0x07
#define LTC3589_OVEN 0x10
#define LTC3589_SCR2 0x12
#define LTC3589_PGSTAT 0x13
#define LTC3589_VCCR 0x20
#define LTC3589_CLIRQ 0x21
#define LTC3589_B1DTV1 0x23
#define LTC3589_B1DTV2 0x24
#define LTC3589_VRRCR 0x25
#define LTC3589_B2DTV1 0x26
#define LTC3589_B2DTV2 0x27
#define LTC3589_B3DTV1 0x29
#define LTC3589_B3DTV2 0x2a
#define LTC3589_L2DTV1 0x32
#define LTC3589_L2DTV2 0x33
#define LTC3589_IRQSTAT_PGOOD_TIMEOUT BIT(3)
#define LTC3589_IRQSTAT_UNDERVOLT_WARN BIT(4)
#define LTC3589_IRQSTAT_UNDERVOLT_FAULT BIT(5)
#define LTC3589_IRQSTAT_THERMAL_WARN BIT(6)
#define LTC3589_IRQSTAT_THERMAL_FAULT BIT(7)
#define LTC3589_OVEN_SW1 BIT(0)
#define LTC3589_OVEN_SW2 BIT(1)
#define LTC3589_OVEN_SW3 BIT(2)
#define LTC3589_OVEN_BB_OUT BIT(3)
#define LTC3589_OVEN_LDO2 BIT(4)
#define LTC3589_OVEN_LDO3 BIT(5)
#define LTC3589_OVEN_LDO4 BIT(6)
#define LTC3589_OVEN_SW_CTRL BIT(7)
#define LTC3589_VCCR_SW1_GO BIT(0)
#define LTC3589_VCCR_SW2_GO BIT(2)
#define LTC3589_VCCR_SW3_GO BIT(4)
#define LTC3589_VCCR_LDO2_GO BIT(6)
#define LTC3589_VRRCR_SW1_RAMP_MASK GENMASK(1, 0)
#define LTC3589_VRRCR_SW2_RAMP_MASK GENMASK(3, 2)
#define LTC3589_VRRCR_SW3_RAMP_MASK GENMASK(5, 4)
#define LTC3589_VRRCR_LDO2_RAMP_MASK GENMASK(7, 6)
enum ltc3589_variant {
LTC3589,
LTC3589_1,
LTC3589_2,
};
enum ltc3589_reg {
LTC3589_SW1,
LTC3589_SW2,
LTC3589_SW3,
LTC3589_BB_OUT,
LTC3589_LDO1,
LTC3589_LDO2,
LTC3589_LDO3,
LTC3589_LDO4,
LTC3589_NUM_REGULATORS,
};
struct ltc3589 {
struct regmap *regmap;
struct device *dev;
enum ltc3589_variant variant;
struct regulator_desc regulator_descs[LTC3589_NUM_REGULATORS];
struct regulator_dev *regulators[LTC3589_NUM_REGULATORS];
};
static const int ltc3589_ldo4[] = {
2800000, 2500000, 1800000, 3300000,
};
static const int ltc3589_12_ldo4[] = {
1200000, 1800000, 2500000, 3200000,
};
static const unsigned int ltc3589_ramp_table[] = {
880, 1750, 3500, 7000
};
static int ltc3589_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct ltc3589 *ltc3589 = rdev_get_drvdata(rdev);
int sel;
sel = regulator_map_voltage_linear(rdev, uV, uV);
if (sel < 0)
return sel;
/* DTV2 register follows right after the corresponding DTV1 register */
return regmap_update_bits(ltc3589->regmap, rdev->desc->vsel_reg + 1,
rdev->desc->vsel_mask, sel);
}
static int ltc3589_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct ltc3589 *ltc3589 = rdev_get_drvdata(rdev);
int mask, bit = 0;
/* VCCR reference selects are right next to the VCCR go bits */
mask = rdev->desc->apply_bit << 1;
if (mode == REGULATOR_MODE_STANDBY)
bit = mask; /* Select DTV2 */
mask |= rdev->desc->apply_bit;
bit |= rdev->desc->apply_bit;
return regmap_update_bits(ltc3589->regmap, LTC3589_VCCR, mask, bit);
}
/* SW1, SW2, SW3, LDO2 */
static const struct regulator_ops ltc3589_linear_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_voltage = ltc3589_set_suspend_voltage,
.set_suspend_mode = ltc3589_set_suspend_mode,
};
/* BB_OUT, LDO3 */
static const struct regulator_ops ltc3589_fixed_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
/* LDO1 */
static const struct regulator_ops ltc3589_fixed_standby_regulator_ops = {
};
/* LDO4 */
static const struct regulator_ops ltc3589_table_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static inline unsigned int ltc3589_scale(unsigned int uV, u32 r1, u32 r2)
{
uint64_t tmp;
if (uV == 0)
return 0;
tmp = (uint64_t)uV * r1;
do_div(tmp, r2);
return uV + (unsigned int)tmp;
}
static int ltc3589_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct ltc3589 *ltc3589 = config->driver_data;
struct regulator_desc *rdesc = <c3589->regulator_descs[desc->id];
u32 r[2];
int ret;
/* Parse feedback voltage dividers. LDO3 and LDO4 don't have them */
if (desc->id >= LTC3589_LDO3)
return 0;
ret = of_property_read_u32_array(np, "lltc,fb-voltage-divider", r, 2);
if (ret) {
dev_err(ltc3589->dev, "Failed to parse voltage divider: %d\n",
ret);
return ret;
}
if (!r[0] || !r[1])
return 0;
rdesc->min_uV = ltc3589_scale(desc->min_uV, r[0], r[1]);
rdesc->uV_step = ltc3589_scale(desc->uV_step, r[0], r[1]);
rdesc->fixed_uV = ltc3589_scale(desc->fixed_uV, r[0], r[1]);
return 0;
}
#define LTC3589_REG(_name, _of_name, _ops, en_bit, dtv1_reg, dtv_mask) \
[LTC3589_ ## _name] = { \
.name = #_name, \
.of_match = of_match_ptr(#_of_name), \
.regulators_node = of_match_ptr("regulators"), \
.of_parse_cb = ltc3589_of_parse_cb, \
.n_voltages = (dtv_mask) + 1, \
.fixed_uV = (dtv_mask) ? 0 : 800000, \
.ops = <c3589_ ## _ops ## _regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = LTC3589_ ## _name, \
.owner = THIS_MODULE, \
.vsel_reg = (dtv1_reg), \
.vsel_mask = (dtv_mask), \
.enable_reg = (en_bit) ? LTC3589_OVEN : 0, \
.enable_mask = (en_bit), \
}
#define LTC3589_LINEAR_REG(_name, _of_name, _dtv1) \
[LTC3589_ ## _name] = { \
.name = #_name, \
.of_match = of_match_ptr(#_of_name), \
.regulators_node = of_match_ptr("regulators"), \
.of_parse_cb = ltc3589_of_parse_cb, \
.n_voltages = 32, \
.min_uV = 362500, \
.uV_step = 12500, \
.ramp_delay = 1750, \
.ops = <c3589_linear_regulator_ops, \
.type = REGULATOR_VOLTAGE, \
.id = LTC3589_ ## _name, \
.owner = THIS_MODULE, \
.vsel_reg = LTC3589_ ## _dtv1, \
.vsel_mask = 0x1f, \
.apply_reg = LTC3589_VCCR, \
.apply_bit = LTC3589_VCCR_ ## _name ## _GO, \
.enable_reg = LTC3589_OVEN, \
.enable_mask = (LTC3589_OVEN_ ## _name), \
.ramp_reg = LTC3589_VRRCR, \
.ramp_mask = LTC3589_VRRCR_ ## _name ## _RAMP_MASK, \
.ramp_delay_table = ltc3589_ramp_table, \
.n_ramp_values = ARRAY_SIZE(ltc3589_ramp_table), \
}
#define LTC3589_FIXED_REG(_name, _of_name) \
LTC3589_REG(_name, _of_name, fixed, LTC3589_OVEN_ ## _name, 0, 0)
static const struct regulator_desc ltc3589_regulators[] = {
LTC3589_LINEAR_REG(SW1, sw1, B1DTV1),
LTC3589_LINEAR_REG(SW2, sw2, B2DTV1),
LTC3589_LINEAR_REG(SW3, sw3, B3DTV1),
LTC3589_FIXED_REG(BB_OUT, bb-out),
LTC3589_REG(LDO1, ldo1, fixed_standby, 0, 0, 0),
LTC3589_LINEAR_REG(LDO2, ldo2, L2DTV1),
LTC3589_FIXED_REG(LDO3, ldo3),
LTC3589_REG(LDO4, ldo4, table, LTC3589_OVEN_LDO4, LTC3589_L2DTV2, 0x60),
};
static bool ltc3589_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case LTC3589_IRQSTAT:
case LTC3589_SCR1:
case LTC3589_OVEN:
case LTC3589_SCR2:
case LTC3589_VCCR:
case LTC3589_CLIRQ:
case LTC3589_B1DTV1:
case LTC3589_B1DTV2:
case LTC3589_VRRCR:
case LTC3589_B2DTV1:
case LTC3589_B2DTV2:
case LTC3589_B3DTV1:
case LTC3589_B3DTV2:
case LTC3589_L2DTV1:
case LTC3589_L2DTV2:
return true;
}
return false;
}
static bool ltc3589_readable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case LTC3589_IRQSTAT:
case LTC3589_SCR1:
case LTC3589_OVEN:
case LTC3589_SCR2:
case LTC3589_PGSTAT:
case LTC3589_VCCR:
case LTC3589_B1DTV1:
case LTC3589_B1DTV2:
case LTC3589_VRRCR:
case LTC3589_B2DTV1:
case LTC3589_B2DTV2:
case LTC3589_B3DTV1:
case LTC3589_B3DTV2:
case LTC3589_L2DTV1:
case LTC3589_L2DTV2:
return true;
}
return false;
}
static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case LTC3589_IRQSTAT:
case LTC3589_PGSTAT:
case LTC3589_VCCR:
return true;
}
return false;
}
static const struct reg_default ltc3589_reg_defaults[] = {
{ LTC3589_SCR1, 0x00 },
{ LTC3589_OVEN, 0x00 },
{ LTC3589_SCR2, 0x00 },
{ LTC3589_VCCR, 0x00 },
{ LTC3589_B1DTV1, 0x19 },
{ LTC3589_B1DTV2, 0x19 },
{ LTC3589_VRRCR, 0xff },
{ LTC3589_B2DTV1, 0x19 },
{ LTC3589_B2DTV2, 0x19 },
{ LTC3589_B3DTV1, 0x19 },
{ LTC3589_B3DTV2, 0x19 },
{ LTC3589_L2DTV1, 0x19 },
{ LTC3589_L2DTV2, 0x19 },
};
static const struct regmap_config ltc3589_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.writeable_reg = ltc3589_writeable_reg,
.readable_reg = ltc3589_readable_reg,
.volatile_reg = ltc3589_volatile_reg,
.max_register = LTC3589_L2DTV2,
.reg_defaults = ltc3589_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(ltc3589_reg_defaults),
.use_single_read = true,
.use_single_write = true,
.cache_type = REGCACHE_MAPLE,
};
static irqreturn_t ltc3589_isr(int irq, void *dev_id)
{
struct ltc3589 *ltc3589 = dev_id;
unsigned int i, irqstat, event;
regmap_read(ltc3589->regmap, LTC3589_IRQSTAT, &irqstat);
if (irqstat & LTC3589_IRQSTAT_THERMAL_WARN) {
event = REGULATOR_EVENT_OVER_TEMP;
for (i = 0; i < LTC3589_NUM_REGULATORS; i++)
regulator_notifier_call_chain(ltc3589->regulators[i],
event, NULL);
}
if (irqstat & LTC3589_IRQSTAT_UNDERVOLT_WARN) {
event = REGULATOR_EVENT_UNDER_VOLTAGE;
for (i = 0; i < LTC3589_NUM_REGULATORS; i++)
regulator_notifier_call_chain(ltc3589->regulators[i],
event, NULL);
}
/* Clear warning condition */
regmap_write(ltc3589->regmap, LTC3589_CLIRQ, 0);
return IRQ_HANDLED;
}
static int ltc3589_probe(struct i2c_client *client)
{
const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct device *dev = &client->dev;
struct regulator_desc *descs;
struct ltc3589 *ltc3589;
int i, ret;
ltc3589 = devm_kzalloc(dev, sizeof(*ltc3589), GFP_KERNEL);
if (!ltc3589)
return -ENOMEM;
i2c_set_clientdata(client, ltc3589);
if (client->dev.of_node)
ltc3589->variant = (uintptr_t)of_device_get_match_data(&client->dev);
else
ltc3589->variant = id->driver_data;
ltc3589->dev = dev;
descs = ltc3589->regulator_descs;
memcpy(descs, ltc3589_regulators, sizeof(ltc3589_regulators));
if (ltc3589->variant == LTC3589) {
descs[LTC3589_LDO3].fixed_uV = 1800000;
descs[LTC3589_LDO4].volt_table = ltc3589_ldo4;
} else {
descs[LTC3589_LDO3].fixed_uV = 2800000;
descs[LTC3589_LDO4].volt_table = ltc3589_12_ldo4;
}
ltc3589->regmap = devm_regmap_init_i2c(client, <c3589_regmap_config);
if (IS_ERR(ltc3589->regmap)) {
ret = PTR_ERR(ltc3589->regmap);
dev_err(dev, "failed to initialize regmap: %d\n", ret);
return ret;
}
for (i = 0; i < LTC3589_NUM_REGULATORS; i++) {
struct regulator_desc *desc = <c3589->regulator_descs[i];
struct regulator_config config = { };
config.dev = dev;
config.driver_data = ltc3589;
ltc3589->regulators[i] = devm_regulator_register(dev, desc,
&config);
if (IS_ERR(ltc3589->regulators[i])) {
ret = PTR_ERR(ltc3589->regulators[i]);
dev_err(dev, "failed to register regulator %s: %d\n",
desc->name, ret);
return ret;
}
}
if (client->irq) {
ret = devm_request_threaded_irq(dev, client->irq, NULL,
ltc3589_isr,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
client->name, ltc3589);
if (ret) {
dev_err(dev, "Failed to request IRQ: %d\n", ret);
return ret;
}
}
return 0;
}
static const struct i2c_device_id ltc3589_i2c_id[] = {
{ "ltc3589", LTC3589 },
{ "ltc3589-1", LTC3589_1 },
{ "ltc3589-2", LTC3589_2 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ltc3589_i2c_id);
static const struct of_device_id __maybe_unused ltc3589_of_match[] = {
{
.compatible = "lltc,ltc3589",
.data = (void *)LTC3589,
},
{
.compatible = "lltc,ltc3589-1",
.data = (void *)LTC3589_1,
},
{
.compatible = "lltc,ltc3589-2",
.data = (void *)LTC3589_2,
},
{ },
};
MODULE_DEVICE_TABLE(of, ltc3589_of_match);
static struct i2c_driver ltc3589_driver = {
.driver = {
.name = DRIVER_NAME,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(ltc3589_of_match),
},
.probe = ltc3589_probe,
.id_table = ltc3589_i2c_id,
};
module_i2c_driver(ltc3589_driver);
MODULE_AUTHOR("Philipp Zabel <[email protected]>");
MODULE_DESCRIPTION("Regulator driver for Linear Technology LTC3589(-1,2)");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/ltc3589.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2017 MediaTek Inc.
// Author: Chenglin Xu <[email protected]>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6380-regulator.h>
#include <linux/regulator/of_regulator.h>
/* PMIC Registers */
#define MT6380_ALDO_CON_0 0x0000
#define MT6380_BTLDO_CON_0 0x0004
#define MT6380_COMP_CON_0 0x0008
#define MT6380_CPUBUCK_CON_0 0x000C
#define MT6380_CPUBUCK_CON_1 0x0010
#define MT6380_CPUBUCK_CON_2 0x0014
#define MT6380_DDRLDO_CON_0 0x0018
#define MT6380_MLDO_CON_0 0x001C
#define MT6380_PALDO_CON_0 0x0020
#define MT6380_PHYLDO_CON_0 0x0024
#define MT6380_SIDO_CON_0 0x0028
#define MT6380_SIDO_CON_1 0x002C
#define MT6380_SIDO_CON_2 0x0030
#define MT6380_SLDO_CON_0 0x0034
#define MT6380_TLDO_CON_0 0x0038
#define MT6380_STARTUP_CON_0 0x003C
#define MT6380_STARTUP_CON_1 0x0040
#define MT6380_SMPS_TOP_CON_0 0x0044
#define MT6380_SMPS_TOP_CON_1 0x0048
#define MT6380_ANA_CTRL_0 0x0050
#define MT6380_ANA_CTRL_1 0x0054
#define MT6380_ANA_CTRL_2 0x0058
#define MT6380_ANA_CTRL_3 0x005C
#define MT6380_ANA_CTRL_4 0x0060
#define MT6380_SPK_CON9 0x0064
#define MT6380_SPK_CON11 0x0068
#define MT6380_SPK_CON12 0x006A
#define MT6380_CLK_CTRL 0x0070
#define MT6380_PINMUX_CTRL 0x0074
#define MT6380_IO_CTRL 0x0078
#define MT6380_SLP_MODE_CTRL_0 0x007C
#define MT6380_SLP_MODE_CTRL_1 0x0080
#define MT6380_SLP_MODE_CTRL_2 0x0084
#define MT6380_SLP_MODE_CTRL_3 0x0088
#define MT6380_SLP_MODE_CTRL_4 0x008C
#define MT6380_SLP_MODE_CTRL_5 0x0090
#define MT6380_SLP_MODE_CTRL_6 0x0094
#define MT6380_SLP_MODE_CTRL_7 0x0098
#define MT6380_SLP_MODE_CTRL_8 0x009C
#define MT6380_FCAL_CTRL_0 0x00A0
#define MT6380_FCAL_CTRL_1 0x00A4
#define MT6380_LDO_CTRL_0 0x00A8
#define MT6380_LDO_CTRL_1 0x00AC
#define MT6380_LDO_CTRL_2 0x00B0
#define MT6380_LDO_CTRL_3 0x00B4
#define MT6380_LDO_CTRL_4 0x00B8
#define MT6380_DEBUG_CTRL_0 0x00BC
#define MT6380_EFU_CTRL_0 0x0200
#define MT6380_EFU_CTRL_1 0x0201
#define MT6380_EFU_CTRL_2 0x0202
#define MT6380_EFU_CTRL_3 0x0203
#define MT6380_EFU_CTRL_4 0x0204
#define MT6380_EFU_CTRL_5 0x0205
#define MT6380_EFU_CTRL_6 0x0206
#define MT6380_EFU_CTRL_7 0x0207
#define MT6380_EFU_CTRL_8 0x0208
#define MT6380_REGULATOR_MODE_AUTO 0
#define MT6380_REGULATOR_MODE_FORCE_PWM 1
/*
* mt6380 regulators' information
*
* @desc: standard fields of regulator description
* @vselon_reg: Register sections for hardware control mode of bucks
* @modeset_reg: Register for controlling the buck/LDO control mode
* @modeset_mask: Mask for controlling the buck/LDO control mode
*/
struct mt6380_regulator_info {
struct regulator_desc desc;
u32 vselon_reg;
u32 modeset_reg;
u32 modeset_mask;
};
#define MT6380_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \
vosel, vosel_mask, enbit, voselon, _modeset_reg, \
_modeset_mask) \
[MT6380_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6380_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6380_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.vselon_reg = voselon, \
.modeset_reg = _modeset_reg, \
.modeset_mask = _modeset_mask, \
}
#define MT6380_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \
vosel_mask, _modeset_reg, _modeset_mask) \
[MT6380_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6380_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6380_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(ldo_volt_table), \
.volt_table = ldo_volt_table, \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.modeset_reg = _modeset_reg, \
.modeset_mask = _modeset_mask, \
}
#define MT6380_REG_FIXED(match, vreg, enreg, enbit, volt, \
_modeset_reg, _modeset_mask) \
[MT6380_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6380_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6380_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
.min_uV = volt, \
}, \
.modeset_reg = _modeset_reg, \
.modeset_mask = _modeset_mask, \
}
static const struct linear_range buck_volt_range1[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250),
};
static const struct linear_range buck_volt_range2[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 0xfe, 6250),
};
static const struct linear_range buck_volt_range3[] = {
REGULATOR_LINEAR_RANGE(1200000, 0, 0x3c, 25000),
};
static const unsigned int ldo_volt_table1[] = {
1400000, 1350000, 1300000, 1250000, 1200000, 1150000, 1100000, 1050000,
};
static const unsigned int ldo_volt_table2[] = {
2200000, 3300000,
};
static const unsigned int ldo_volt_table3[] = {
1240000, 1390000, 1540000, 1840000,
};
static const unsigned int ldo_volt_table4[] = {
2200000, 3300000,
};
static int mt6380_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
int val = 0;
struct mt6380_regulator_info *info = rdev_get_drvdata(rdev);
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = MT6380_REGULATOR_MODE_AUTO;
break;
case REGULATOR_MODE_FAST:
val = MT6380_REGULATOR_MODE_FORCE_PWM;
break;
default:
return -EINVAL;
}
val <<= ffs(info->modeset_mask) - 1;
return regmap_update_bits(rdev->regmap, info->modeset_reg,
info->modeset_mask, val);
}
static unsigned int mt6380_regulator_get_mode(struct regulator_dev *rdev)
{
unsigned int val;
unsigned int mode;
int ret;
struct mt6380_regulator_info *info = rdev_get_drvdata(rdev);
ret = regmap_read(rdev->regmap, info->modeset_reg, &val);
if (ret < 0)
return ret;
val &= info->modeset_mask;
val >>= ffs(info->modeset_mask) - 1;
switch (val) {
case MT6380_REGULATOR_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case MT6380_REGULATOR_MODE_FORCE_PWM:
mode = REGULATOR_MODE_FAST;
break;
default:
return -EINVAL;
}
return mode;
}
static const struct regulator_ops mt6380_volt_range_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = mt6380_regulator_set_mode,
.get_mode = mt6380_regulator_get_mode,
};
static const struct regulator_ops mt6380_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = mt6380_regulator_set_mode,
.get_mode = mt6380_regulator_get_mode,
};
static const struct regulator_ops mt6380_volt_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = mt6380_regulator_set_mode,
.get_mode = mt6380_regulator_get_mode,
};
/* The array is indexed by id(MT6380_ID_XXX) */
static struct mt6380_regulator_info mt6380_regulators[] = {
MT6380_BUCK("buck-vcore1", VCPU, 600000, 1393750, 6250,
buck_volt_range1, MT6380_ANA_CTRL_3, MT6380_ANA_CTRL_1,
0xfe, 3, MT6380_ANA_CTRL_1,
MT6380_CPUBUCK_CON_0, 0x8000000),
MT6380_BUCK("buck-vcore", VCORE, 600000, 1393750, 6250,
buck_volt_range2, MT6380_ANA_CTRL_3, MT6380_ANA_CTRL_2,
0xfe, 2, MT6380_ANA_CTRL_2, MT6380_SIDO_CON_0, 0x1000000),
MT6380_BUCK("buck-vrf", VRF, 1200000, 1575000, 25000,
buck_volt_range3, MT6380_ANA_CTRL_3, MT6380_SIDO_CON_0,
0x78, 1, MT6380_SIDO_CON_0, MT6380_SIDO_CON_0, 0x8000),
MT6380_LDO("ldo-vm", VMLDO, ldo_volt_table1, MT6380_LDO_CTRL_0,
1, MT6380_MLDO_CON_0, 0xE000, MT6380_ANA_CTRL_1, 0x4000000),
MT6380_LDO("ldo-va", VALDO, ldo_volt_table2, MT6380_LDO_CTRL_0,
2, MT6380_ALDO_CON_0, 0x400, MT6380_ALDO_CON_0, 0x20),
MT6380_REG_FIXED("ldo-vphy", VPHYLDO, MT6380_LDO_CTRL_0, 7, 1800000,
MT6380_PHYLDO_CON_0, 0x80),
MT6380_LDO("ldo-vddr", VDDRLDO, ldo_volt_table3, MT6380_LDO_CTRL_0,
8, MT6380_DDRLDO_CON_0, 0x3000, MT6380_DDRLDO_CON_0, 0x80),
MT6380_LDO("ldo-vt", VTLDO, ldo_volt_table4, MT6380_LDO_CTRL_0, 3,
MT6380_TLDO_CON_0, 0x400, MT6380_TLDO_CON_0, 0x20),
};
static int mt6380_regulator_probe(struct platform_device *pdev)
{
struct regmap *regmap = dev_get_regmap(pdev->dev.parent, NULL);
struct regulator_config config = {};
struct regulator_dev *rdev;
int i;
for (i = 0; i < MT6380_MAX_REGULATOR; i++) {
config.dev = &pdev->dev;
config.driver_data = &mt6380_regulators[i];
config.regmap = regmap;
rdev = devm_regulator_register(&pdev->dev,
&mt6380_regulators[i].desc,
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",
mt6380_regulators[i].desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id mt6380_platform_ids[] = {
{"mt6380-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6380_platform_ids);
static const struct of_device_id __maybe_unused mt6380_of_match[] = {
{ .compatible = "mediatek,mt6380-regulator", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, mt6380_of_match);
static struct platform_driver mt6380_regulator_driver = {
.driver = {
.name = "mt6380-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(mt6380_of_match),
},
.probe = mt6380_regulator_probe,
.id_table = mt6380_platform_ids,
};
module_platform_driver(mt6380_regulator_driver);
MODULE_AUTHOR("Chenglin Xu <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6380 PMIC");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/mt6380-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2015 MediaTek Inc.
// Author: Henry Chen <[email protected]>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/mt6311.h>
#include <linux/slab.h>
#include "mt6311-regulator.h"
static const struct regmap_config mt6311_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MT6311_FQMTR_CON4,
.cache_type = REGCACHE_RBTREE,
};
/* Default limits measured in millivolts and milliamps */
#define MT6311_MIN_UV 600000
#define MT6311_MAX_UV 1393750
#define MT6311_STEP_UV 6250
static const struct regulator_ops mt6311_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops mt6311_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
#define MT6311_BUCK(_id) \
{\
.name = #_id,\
.ops = &mt6311_buck_ops,\
.of_match = of_match_ptr(#_id),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.id = MT6311_ID_##_id,\
.n_voltages = (MT6311_MAX_UV - MT6311_MIN_UV) / MT6311_STEP_UV + 1,\
.min_uV = MT6311_MIN_UV,\
.uV_step = MT6311_STEP_UV,\
.owner = THIS_MODULE,\
.enable_reg = MT6311_VDVFS11_CON9,\
.enable_mask = MT6311_PMIC_VDVFS11_EN_MASK,\
.vsel_reg = MT6311_VDVFS11_CON12,\
.vsel_mask = MT6311_PMIC_VDVFS11_VOSEL_MASK,\
}
#define MT6311_LDO(_id) \
{\
.name = #_id,\
.ops = &mt6311_ldo_ops,\
.of_match = of_match_ptr(#_id),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.id = MT6311_ID_##_id,\
.owner = THIS_MODULE,\
.enable_reg = MT6311_LDO_CON3,\
.enable_mask = MT6311_PMIC_RG_VBIASN_EN_MASK,\
}
static const struct regulator_desc mt6311_regulators[] = {
MT6311_BUCK(VDVFS),
MT6311_LDO(VBIASN),
};
/*
* I2C driver interface functions
*/
static int mt6311_i2c_probe(struct i2c_client *i2c)
{
struct regulator_config config = { };
struct regulator_dev *rdev;
struct regmap *regmap;
int i, ret;
unsigned int data;
regmap = devm_regmap_init_i2c(i2c, &mt6311_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
ret = regmap_read(regmap, MT6311_SWCID, &data);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to read DEVICE_ID reg: %d\n", ret);
return ret;
}
switch (data) {
case MT6311_E1_CID_CODE:
case MT6311_E2_CID_CODE:
case MT6311_E3_CID_CODE:
break;
default:
dev_err(&i2c->dev, "Unsupported device id = 0x%x.\n", data);
return -ENODEV;
}
for (i = 0; i < MT6311_MAX_REGULATORS; i++) {
config.dev = &i2c->dev;
config.regmap = regmap;
rdev = devm_regulator_register(&i2c->dev,
&mt6311_regulators[i], &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev,
"Failed to register MT6311 regulator\n");
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct i2c_device_id mt6311_i2c_id[] = {
{"mt6311", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, mt6311_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id mt6311_dt_ids[] = {
{ .compatible = "mediatek,mt6311-regulator",
.data = &mt6311_i2c_id[0] },
{},
};
MODULE_DEVICE_TABLE(of, mt6311_dt_ids);
#endif
static struct i2c_driver mt6311_regulator_driver = {
.driver = {
.name = "mt6311",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(mt6311_dt_ids),
},
.probe = mt6311_i2c_probe,
.id_table = mt6311_i2c_id,
};
module_i2c_driver(mt6311_regulator_driver);
MODULE_AUTHOR("Henry Chen <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Mediatek MT6311");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/mt6311-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// sy8106a-regulator.c - Regulator device driver for SY8106A
//
// Copyright (C) 2016 Ondřej Jirman <[email protected]>
// Copyright (c) 2017-2018 Icenowy Zheng <[email protected]>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define SY8106A_REG_VOUT1_SEL 0x01
#define SY8106A_REG_VOUT_COM 0x02
#define SY8106A_REG_VOUT1_SEL_MASK 0x7f
#define SY8106A_DISABLE_REG BIT(0)
/*
* The I2C controlled voltage will only work when this bit is set; otherwise
* it will behave like a fixed regulator.
*/
#define SY8106A_GO_BIT BIT(7)
static const struct regmap_config sy8106a_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static const struct regulator_ops sy8106a_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
/* Enabling/disabling the regulator is not yet implemented */
};
/* Default limits measured in millivolts */
#define SY8106A_MIN_MV 680
#define SY8106A_MAX_MV 1950
#define SY8106A_STEP_MV 10
static const struct regulator_desc sy8106a_reg = {
.name = "SY8106A",
.id = 0,
.ops = &sy8106a_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = ((SY8106A_MAX_MV - SY8106A_MIN_MV) / SY8106A_STEP_MV) + 1,
.min_uV = (SY8106A_MIN_MV * 1000),
.uV_step = (SY8106A_STEP_MV * 1000),
.vsel_reg = SY8106A_REG_VOUT1_SEL,
.vsel_mask = SY8106A_REG_VOUT1_SEL_MASK,
/*
* This ramp_delay is a conservative default value which works on
* H3/H5 boards VDD-CPUX situations.
*/
.ramp_delay = 200,
.owner = THIS_MODULE,
};
/*
* I2C driver interface functions
*/
static int sy8106a_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct regulator_dev *rdev;
struct regulator_config config = { };
struct regmap *regmap;
unsigned int reg, vsel;
u32 fixed_voltage;
int error;
error = of_property_read_u32(dev->of_node, "silergy,fixed-microvolt",
&fixed_voltage);
if (error)
return error;
if (fixed_voltage < SY8106A_MIN_MV * 1000 ||
fixed_voltage > SY8106A_MAX_MV * 1000)
return -EINVAL;
regmap = devm_regmap_init_i2c(i2c, &sy8106a_regmap_config);
if (IS_ERR(regmap)) {
error = PTR_ERR(regmap);
dev_err(dev, "Failed to allocate register map: %d\n", error);
return error;
}
config.dev = &i2c->dev;
config.regmap = regmap;
config.of_node = dev->of_node;
config.init_data = of_get_regulator_init_data(dev, dev->of_node,
&sy8106a_reg);
if (!config.init_data)
return -ENOMEM;
/* Ensure GO_BIT is enabled when probing */
error = regmap_read(regmap, SY8106A_REG_VOUT1_SEL, ®);
if (error)
return error;
if (!(reg & SY8106A_GO_BIT)) {
vsel = (fixed_voltage / 1000 - SY8106A_MIN_MV) /
SY8106A_STEP_MV;
error = regmap_write(regmap, SY8106A_REG_VOUT1_SEL,
vsel | SY8106A_GO_BIT);
if (error)
return error;
}
/* Probe regulator */
rdev = devm_regulator_register(&i2c->dev, &sy8106a_reg, &config);
if (IS_ERR(rdev)) {
error = PTR_ERR(rdev);
dev_err(&i2c->dev, "Failed to register SY8106A regulator: %d\n", error);
return error;
}
return 0;
}
static const struct of_device_id sy8106a_i2c_of_match[] = {
{ .compatible = "silergy,sy8106a" },
{ },
};
MODULE_DEVICE_TABLE(of, sy8106a_i2c_of_match);
static const struct i2c_device_id sy8106a_i2c_id[] = {
{ "sy8106a", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, sy8106a_i2c_id);
static struct i2c_driver sy8106a_regulator_driver = {
.driver = {
.name = "sy8106a",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = sy8106a_i2c_of_match,
},
.probe = sy8106a_i2c_probe,
.id_table = sy8106a_i2c_id,
};
module_i2c_driver(sy8106a_regulator_driver);
MODULE_AUTHOR("Ondřej Jirman <[email protected]>");
MODULE_AUTHOR("Icenowy Zheng <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Silergy SY8106A");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/sy8106a-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/* NXP PCF50633 PMIC Driver
*
* (C) 2006-2008 by Openmoko, Inc.
* Author: Balaji Rao <[email protected]>
* All rights reserved.
*
* Broken down from monstrous PCF50633 driver mainly by
* Harald Welte and Andy Green and Werner Almesberger
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/pmic.h>
#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
{ \
.name = _name, \
.id = PCF50633_REGULATOR_##_id, \
.ops = &pcf50633_regulator_ops, \
.n_voltages = _n, \
.min_uV = _min_uV, \
.uV_step = _uV_step, \
.linear_min_sel = _min_sel, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = PCF50633_REG_##_id##OUT, \
.vsel_mask = 0xff, \
.enable_reg = PCF50633_REG_##_id##OUT + 1, \
.enable_mask = PCF50633_REGULATOR_ON, \
}
static const struct regulator_ops pcf50633_regulator_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc regulators[] = {
[PCF50633_REGULATOR_AUTO] =
PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
[PCF50633_REGULATOR_DOWN1] =
PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
[PCF50633_REGULATOR_DOWN2] =
PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
[PCF50633_REGULATOR_LDO1] =
PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO2] =
PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO3] =
PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO4] =
PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO5] =
PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO6] =
PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_HCLDO] =
PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_MEMLDO] =
PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
};
static int pcf50633_regulator_probe(struct platform_device *pdev)
{
struct regulator_dev *rdev;
struct pcf50633 *pcf;
struct regulator_config config = { };
/* Already set by core driver */
pcf = dev_to_pcf50633(pdev->dev.parent);
config.dev = &pdev->dev;
config.init_data = dev_get_platdata(&pdev->dev);
config.driver_data = pcf;
config.regmap = pcf->regmap;
rdev = devm_regulator_register(&pdev->dev, ®ulators[pdev->id],
&config);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
platform_set_drvdata(pdev, rdev);
if (pcf->pdata->regulator_registered)
pcf->pdata->regulator_registered(pcf, pdev->id);
return 0;
}
static struct platform_driver pcf50633_regulator_driver = {
.driver = {
.name = "pcf50633-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = pcf50633_regulator_probe,
};
static int __init pcf50633_regulator_init(void)
{
return platform_driver_register(&pcf50633_regulator_driver);
}
subsys_initcall(pcf50633_regulator_init);
static void __exit pcf50633_regulator_exit(void)
{
platform_driver_unregister(&pcf50633_regulator_driver);
}
module_exit(pcf50633_regulator_exit);
MODULE_AUTHOR("Balaji Rao <[email protected]>");
MODULE_DESCRIPTION("PCF50633 regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcf50633-regulator");
| linux-master | drivers/regulator/pcf50633-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// da9052-regulator.c: Regulator driver for DA9052
//
// Copyright(c) 2011 Dialog Semiconductor Ltd.
//
// Author: David Dajun Chen <[email protected]>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
#include <linux/mfd/da9052/pdata.h>
/* Buck step size */
#define DA9052_BUCK_PERI_3uV_STEP 100000
#define DA9052_BUCK_PERI_REG_MAP_UPTO_3uV 24
#define DA9052_CONST_3uV 3000000
#define DA9052_MIN_UA 0
#define DA9052_MAX_UA 3
#define DA9052_CURRENT_RANGE 4
/* Bit masks */
#define DA9052_BUCK_ILIM_MASK_EVEN 0x0c
#define DA9052_BUCK_ILIM_MASK_ODD 0xc0
/* DA9052 REGULATOR IDs */
#define DA9052_ID_BUCK1 0
#define DA9052_ID_BUCK2 1
#define DA9052_ID_BUCK3 2
#define DA9052_ID_BUCK4 3
#define DA9052_ID_LDO1 4
#define DA9052_ID_LDO2 5
#define DA9052_ID_LDO3 6
#define DA9052_ID_LDO4 7
#define DA9052_ID_LDO5 8
#define DA9052_ID_LDO6 9
#define DA9052_ID_LDO7 10
#define DA9052_ID_LDO8 11
#define DA9052_ID_LDO9 12
#define DA9052_ID_LDO10 13
static const u32 da9052_current_limits[3][4] = {
{700000, 800000, 1000000, 1200000}, /* DA9052-BC BUCKs */
{1600000, 2000000, 2400000, 3000000}, /* DA9053-AA/Bx BUCK-CORE */
{800000, 1000000, 1200000, 1500000}, /* DA9053-AA/Bx BUCK-PRO,
* BUCK-MEM and BUCK-PERI
*/
};
struct da9052_regulator_info {
struct regulator_desc reg_desc;
int step_uV;
int min_uV;
int max_uV;
unsigned char activate_bit;
};
struct da9052_regulator {
struct da9052 *da9052;
struct da9052_regulator_info *info;
struct regulator_dev *rdev;
};
static int verify_range(struct da9052_regulator_info *info,
int min_uV, int max_uV)
{
if (min_uV > info->max_uV || max_uV < info->min_uV)
return -EINVAL;
return 0;
}
static int da9052_dcdc_get_current_limit(struct regulator_dev *rdev)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
int offset = rdev_get_id(rdev);
int ret, row = 2;
ret = da9052_reg_read(regulator->da9052, DA9052_BUCKA_REG + offset/2);
if (ret < 0)
return ret;
/* Determine the even or odd position of the buck current limit
* register field
*/
if (offset % 2 == 0)
ret = (ret & DA9052_BUCK_ILIM_MASK_EVEN) >> 2;
else
ret = (ret & DA9052_BUCK_ILIM_MASK_ODD) >> 6;
/* Select the appropriate current limit range */
if (regulator->da9052->chip_id == DA9052)
row = 0;
else if (offset == 0)
row = 1;
return da9052_current_limits[row][ret];
}
static int da9052_dcdc_set_current_limit(struct regulator_dev *rdev, int min_uA,
int max_uA)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
int offset = rdev_get_id(rdev);
int reg_val = 0;
int i, row = 2;
/* Select the appropriate current limit range */
if (regulator->da9052->chip_id == DA9052)
row = 0;
else if (offset == 0)
row = 1;
for (i = DA9052_CURRENT_RANGE - 1; i >= 0; i--) {
if ((min_uA <= da9052_current_limits[row][i]) &&
(da9052_current_limits[row][i] <= max_uA)) {
reg_val = i;
break;
}
}
if (i < 0)
return -EINVAL;
/* Determine the even or odd position of the buck current limit
* register field
*/
if (offset % 2 == 0)
return da9052_reg_update(regulator->da9052,
DA9052_BUCKA_REG + offset/2,
DA9052_BUCK_ILIM_MASK_EVEN,
reg_val << 2);
else
return da9052_reg_update(regulator->da9052,
DA9052_BUCKA_REG + offset/2,
DA9052_BUCK_ILIM_MASK_ODD,
reg_val << 6);
}
static int da9052_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
struct da9052_regulator_info *info = regulator->info;
int id = rdev_get_id(rdev);
int volt_uV;
if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)
&& (selector >= DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)) {
volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)
+ info->min_uV);
volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)
* (DA9052_BUCK_PERI_3uV_STEP);
} else {
volt_uV = (selector * info->step_uV) + info->min_uV;
}
if (volt_uV > info->max_uV)
return -EINVAL;
return volt_uV;
}
static int da9052_map_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
struct da9052_regulator_info *info = regulator->info;
int id = rdev_get_id(rdev);
int ret, sel;
ret = verify_range(info, min_uV, max_uV);
if (ret < 0)
return ret;
if (min_uV < info->min_uV)
min_uV = info->min_uV;
if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)
&& (min_uV >= DA9052_CONST_3uV)) {
sel = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,
DA9052_BUCK_PERI_3uV_STEP);
} else {
sel = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
}
ret = da9052_list_voltage(rdev, sel);
if (ret < 0)
return ret;
return sel;
}
static int da9052_regulator_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
struct da9052_regulator_info *info = regulator->info;
int id = rdev_get_id(rdev);
int ret;
ret = da9052_reg_update(regulator->da9052, rdev->desc->vsel_reg,
rdev->desc->vsel_mask, selector);
if (ret < 0)
return ret;
/* Some LDOs and DCDCs are DVC controlled which requires enabling of
* the activate bit to implment the changes on the output.
*/
switch (id) {
case DA9052_ID_BUCK1:
case DA9052_ID_BUCK2:
case DA9052_ID_BUCK3:
case DA9052_ID_LDO2:
case DA9052_ID_LDO3:
ret = da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
info->activate_bit, info->activate_bit);
break;
}
return ret;
}
static int da9052_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_sel,
unsigned int new_sel)
{
struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
struct da9052_regulator_info *info = regulator->info;
int id = rdev_get_id(rdev);
int ret = 0;
/* The DVC controlled LDOs and DCDCs ramp with 6.25mV/µs after enabling
* the activate bit.
*/
switch (id) {
case DA9052_ID_BUCK1:
case DA9052_ID_BUCK2:
case DA9052_ID_BUCK3:
case DA9052_ID_LDO2:
case DA9052_ID_LDO3:
ret = DIV_ROUND_UP(abs(new_sel - old_sel) * info->step_uV,
6250);
break;
}
return ret;
}
static const struct regulator_ops da9052_dcdc_ops = {
.get_current_limit = da9052_dcdc_get_current_limit,
.set_current_limit = da9052_dcdc_set_current_limit,
.list_voltage = da9052_list_voltage,
.map_voltage = da9052_map_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = da9052_regulator_set_voltage_sel,
.set_voltage_time_sel = da9052_regulator_set_voltage_time_sel,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static const struct regulator_ops da9052_ldo_ops = {
.list_voltage = da9052_list_voltage,
.map_voltage = da9052_map_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = da9052_regulator_set_voltage_sel,
.set_voltage_time_sel = da9052_regulator_set_voltage_time_sel,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
#define DA9052_LDO(_id, _name, step, min, max, sbits, ebits, abits) \
{\
.reg_desc = {\
.name = #_name,\
.of_match = of_match_ptr(#_name),\
.regulators_node = of_match_ptr("regulators"),\
.ops = &da9052_ldo_ops,\
.type = REGULATOR_VOLTAGE,\
.id = DA9052_ID_##_id,\
.n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
.vsel_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
.vsel_mask = (1 << (sbits)) - 1,\
.enable_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
.enable_mask = 1 << (ebits),\
},\
.min_uV = (min) * 1000,\
.max_uV = (max) * 1000,\
.step_uV = (step) * 1000,\
.activate_bit = (abits),\
}
#define DA9052_DCDC(_id, _name, step, min, max, sbits, ebits, abits) \
{\
.reg_desc = {\
.name = #_name,\
.of_match = of_match_ptr(#_name),\
.regulators_node = of_match_ptr("regulators"),\
.ops = &da9052_dcdc_ops,\
.type = REGULATOR_VOLTAGE,\
.id = DA9052_ID_##_id,\
.n_voltages = (max - min) / step + 1, \
.owner = THIS_MODULE,\
.vsel_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
.vsel_mask = (1 << (sbits)) - 1,\
.enable_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
.enable_mask = 1 << (ebits),\
},\
.min_uV = (min) * 1000,\
.max_uV = (max) * 1000,\
.step_uV = (step) * 1000,\
.activate_bit = (abits),\
}
static struct da9052_regulator_info da9052_regulator_info[] = {
DA9052_DCDC(BUCK1, buck1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
DA9052_DCDC(BUCK2, buck2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
DA9052_DCDC(BUCK3, buck3, 25, 950, 2525, 6, 6, DA9052_SUPPLY_VBMEMGO),
DA9052_DCDC(BUCK4, buck4, 50, 1800, 3600, 5, 6, 0),
DA9052_LDO(LDO1, ldo1, 50, 600, 1800, 5, 6, 0),
DA9052_LDO(LDO2, ldo2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
DA9052_LDO(LDO3, ldo3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
DA9052_LDO(LDO4, ldo4, 25, 1725, 3300, 6, 6, 0),
DA9052_LDO(LDO5, ldo5, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO7, ldo7, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO8, ldo8, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO9, ldo9, 50, 1250, 3650, 6, 6, 0),
DA9052_LDO(LDO10, ldo10, 50, 1200, 3600, 6, 6, 0),
};
static struct da9052_regulator_info da9053_regulator_info[] = {
DA9052_DCDC(BUCK1, buck1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
DA9052_DCDC(BUCK2, buck2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
DA9052_DCDC(BUCK3, buck3, 25, 950, 2525, 6, 6, DA9052_SUPPLY_VBMEMGO),
DA9052_DCDC(BUCK4, buck4, 25, 950, 2525, 6, 6, 0),
DA9052_LDO(LDO1, ldo1, 50, 600, 1800, 5, 6, 0),
DA9052_LDO(LDO2, ldo2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
DA9052_LDO(LDO3, ldo3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
DA9052_LDO(LDO4, ldo4, 25, 1725, 3300, 6, 6, 0),
DA9052_LDO(LDO5, ldo5, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO6, ldo6, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO7, ldo7, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO8, ldo8, 50, 1200, 3600, 6, 6, 0),
DA9052_LDO(LDO9, ldo9, 50, 1250, 3650, 6, 6, 0),
DA9052_LDO(LDO10, ldo10, 50, 1200, 3600, 6, 6, 0),
};
static inline struct da9052_regulator_info *find_regulator_info(u8 chip_id,
int id)
{
struct da9052_regulator_info *info;
int i;
switch (chip_id) {
case DA9052:
for (i = 0; i < ARRAY_SIZE(da9052_regulator_info); i++) {
info = &da9052_regulator_info[i];
if (info->reg_desc.id == id)
return info;
}
break;
case DA9053_AA:
case DA9053_BA:
case DA9053_BB:
case DA9053_BC:
for (i = 0; i < ARRAY_SIZE(da9053_regulator_info); i++) {
info = &da9053_regulator_info[i];
if (info->reg_desc.id == id)
return info;
}
break;
}
return NULL;
}
static int da9052_regulator_probe(struct platform_device *pdev)
{
const struct mfd_cell *cell = mfd_get_cell(pdev);
struct regulator_config config = { };
struct da9052_regulator *regulator;
struct da9052 *da9052;
struct da9052_pdata *pdata;
regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9052_regulator),
GFP_KERNEL);
if (!regulator)
return -ENOMEM;
da9052 = dev_get_drvdata(pdev->dev.parent);
pdata = dev_get_platdata(da9052->dev);
regulator->da9052 = da9052;
regulator->info = find_regulator_info(regulator->da9052->chip_id,
cell->id);
if (regulator->info == NULL) {
dev_err(&pdev->dev, "invalid regulator ID specified\n");
return -EINVAL;
}
config.dev = da9052->dev;
config.driver_data = regulator;
config.regmap = da9052->regmap;
if (pdata)
config.init_data = pdata->regulators[cell->id];
regulator->rdev = devm_regulator_register(&pdev->dev,
®ulator->info->reg_desc,
&config);
if (IS_ERR(regulator->rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
regulator->info->reg_desc.name);
return PTR_ERR(regulator->rdev);
}
platform_set_drvdata(pdev, regulator);
return 0;
}
static struct platform_driver da9052_regulator_driver = {
.probe = da9052_regulator_probe,
.driver = {
.name = "da9052-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static int __init da9052_regulator_init(void)
{
return platform_driver_register(&da9052_regulator_driver);
}
subsys_initcall(da9052_regulator_init);
static void __exit da9052_regulator_exit(void)
{
platform_driver_unregister(&da9052_regulator_driver);
}
module_exit(da9052_regulator_exit);
MODULE_AUTHOR("David Dajun Chen <[email protected]>");
MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9052 PMIC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9052-regulator");
| linux-master | drivers/regulator/da9052-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
static const struct regulator_ops max8893_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_desc max8893_regulators[] = {
{
.name = "BUCK",
.supply_name = "in-buck",
.of_match = of_match_ptr("buck"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x11,
.id = 6,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x4,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(7),
},
{
.name = "LDO1",
.supply_name = "in-ldo1",
.of_match = of_match_ptr("ldo1"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x12,
.id = 1,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1600000,
.uV_step = 100000,
.vsel_reg = 0x5,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(5),
},
{
.name = "LDO2",
.supply_name = "in-ldo2",
.of_match = of_match_ptr("ldo2"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x16,
.id = 2,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1200000,
.uV_step = 100000,
.vsel_reg = 0x6,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(4),
},
{
.name = "LDO3",
.supply_name = "in-ldo3",
.of_match = of_match_ptr("ldo3"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x12,
.id = 3,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1600000,
.uV_step = 100000,
.vsel_reg = 0x7,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(3),
},
{
.name = "LDO4",
.supply_name = "in-ldo4",
.of_match = of_match_ptr("ldo4"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x1a,
.id = 4,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x8,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(2),
},
{
.name = "LDO5",
.supply_name = "in-ldo5",
.of_match = of_match_ptr("ldo5"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x1a,
.id = 5,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x9,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(1),
}
};
static const struct regmap_config max8893_regmap = {
.reg_bits = 8,
.val_bits = 8,
};
static int max8893_probe(struct i2c_client *i2c)
{
int id, ret;
struct regulator_config config = {.dev = &i2c->dev};
struct regmap *regmap = devm_regmap_init_i2c(i2c, &max8893_regmap);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
return ret;
}
for (id = 0; id < ARRAY_SIZE(max8893_regulators); id++) {
struct regulator_dev *rdev;
rdev = devm_regulator_register(&i2c->dev,
&max8893_regulators[id],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&i2c->dev, "failed to register %s: %d\n",
max8893_regulators[id].name, ret);
return ret;
}
}
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id max8893_dt_match[] = {
{ .compatible = "maxim,max8893" },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, max8893_dt_match);
#endif
static const struct i2c_device_id max8893_ids[] = {
{ "max8893", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, max8893_ids);
static struct i2c_driver max8893_driver = {
.probe = max8893_probe,
.driver = {
.name = "max8893",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(max8893_dt_match),
},
.id_table = max8893_ids,
};
module_i2c_driver(max8893_driver);
MODULE_DESCRIPTION("Maxim MAX8893 PMIC driver");
MODULE_AUTHOR("Sergey Larin <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max8893.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* twl-regulator.c -- support regulators in twl4030/twl6030 family chips
*
* Copyright (C) 2008 David Brownell
*/
#include <linux/module.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/twl.h>
#include <linux/delay.h>
/*
* The TWL4030/TW5030/TPS659x0 family chips include power management, a
* USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
* include an audio codec, battery charger, and more voltage regulators.
* These chips are often used in OMAP-based systems.
*
* This driver implements software-based resource control for various
* voltage regulators. This is usually augmented with state machine
* based control.
*/
struct twlreg_info {
/* start of regulator's PM_RECEIVER control register bank */
u8 base;
/* twl resource ID, for resource control state machine */
u8 id;
/* voltage in mV = table[VSEL]; table_len must be a power-of-two */
u8 table_len;
const u16 *table;
/* State REMAP default configuration */
u8 remap;
/* used by regulator core */
struct regulator_desc desc;
/* chip specific features */
unsigned long features;
/* data passed from board for external get/set voltage */
void *data;
};
/* LDO control registers ... offset is from the base of its register bank.
* The first three registers of all power resource banks help hardware to
* manage the various resource groups.
*/
/* Common offset in TWL4030/6030 */
#define VREG_GRP 0
/* TWL4030 register offsets */
#define VREG_TYPE 1
#define VREG_REMAP 2
#define VREG_DEDICATED 3 /* LDO control */
#define VREG_VOLTAGE_SMPS_4030 9
/* TWL6030 register offsets */
#define VREG_TRANS 1
#define VREG_STATE 2
#define VREG_VOLTAGE 3
#define VREG_VOLTAGE_SMPS 4
static inline int
twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
{
u8 value;
int status;
status = twl_i2c_read_u8(slave_subgp,
&value, info->base + offset);
return (status < 0) ? status : value;
}
static inline int
twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
u8 value)
{
return twl_i2c_write_u8(slave_subgp,
value, info->base + offset);
}
/*----------------------------------------------------------------------*/
/* generic power resource operations, which work on all regulators */
static int twlreg_grp(struct regulator_dev *rdev)
{
return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
VREG_GRP);
}
/*
* Enable/disable regulators by joining/leaving the P1 (processor) group.
* We assume nobody else is updating the DEV_GRP registers.
*/
/* definition for 4030 family */
#define P3_GRP_4030 BIT(7) /* "peripherals" */
#define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
#define P1_GRP_4030 BIT(5) /* CPU/Linux */
/* definition for 6030 family */
#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
#define P2_GRP_6030 BIT(1) /* "peripherals" */
#define P1_GRP_6030 BIT(0) /* CPU/Linux */
static int twl4030reg_is_enabled(struct regulator_dev *rdev)
{
int state = twlreg_grp(rdev);
if (state < 0)
return state;
return state & P1_GRP_4030;
}
#define PB_I2C_BUSY BIT(0)
#define PB_I2C_BWEN BIT(1)
/* Wait until buffer empty/ready to send a word on power bus. */
static int twl4030_wait_pb_ready(void)
{
int ret;
int timeout = 10;
u8 val;
do {
ret = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
TWL4030_PM_MASTER_PB_CFG);
if (ret < 0)
return ret;
if (!(val & PB_I2C_BUSY))
return 0;
mdelay(1);
timeout--;
} while (timeout);
return -ETIMEDOUT;
}
/* Send a word over the powerbus */
static int twl4030_send_pb_msg(unsigned msg)
{
u8 val;
int ret;
/* save powerbus configuration */
ret = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val,
TWL4030_PM_MASTER_PB_CFG);
if (ret < 0)
return ret;
/* Enable i2c access to powerbus */
ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val | PB_I2C_BWEN,
TWL4030_PM_MASTER_PB_CFG);
if (ret < 0)
return ret;
ret = twl4030_wait_pb_ready();
if (ret < 0)
return ret;
ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, msg >> 8,
TWL4030_PM_MASTER_PB_WORD_MSB);
if (ret < 0)
return ret;
ret = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, msg & 0xff,
TWL4030_PM_MASTER_PB_WORD_LSB);
if (ret < 0)
return ret;
ret = twl4030_wait_pb_ready();
if (ret < 0)
return ret;
/* Restore powerbus configuration */
return twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val,
TWL4030_PM_MASTER_PB_CFG);
}
static int twl4030reg_enable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp;
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
grp |= P1_GRP_4030;
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
}
static int twl4030reg_disable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp;
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
}
static int twl4030reg_get_status(struct regulator_dev *rdev)
{
int state = twlreg_grp(rdev);
if (state < 0)
return state;
state &= 0x0f;
/* assume state != WARM_RESET; we'd not be running... */
if (!state)
return REGULATOR_STATUS_OFF;
return (state & BIT(3))
? REGULATOR_STATUS_NORMAL
: REGULATOR_STATUS_STANDBY;
}
static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
unsigned message;
/* We can only set the mode through state machine commands... */
switch (mode) {
case REGULATOR_MODE_NORMAL:
message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
break;
case REGULATOR_MODE_STANDBY:
message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
break;
default:
return -EINVAL;
}
return twl4030_send_pb_msg(message);
}
static inline unsigned int twl4030reg_map_mode(unsigned int mode)
{
switch (mode) {
case RES_STATE_ACTIVE:
return REGULATOR_MODE_NORMAL;
case RES_STATE_SLEEP:
return REGULATOR_MODE_STANDBY;
default:
return REGULATOR_MODE_INVALID;
}
}
/*----------------------------------------------------------------------*/
/*
* Support for adjustable-voltage LDOs uses a four bit (or less) voltage
* select field in its control register. We use tables indexed by VSEL
* to record voltages in milliVolts. (Accuracy is about three percent.)
*
* Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
* currently handled by listing two slightly different VAUX2 regulators,
* only one of which will be configured.
*
* VSEL values documented as "TI cannot support these values" are flagged
* in these tables as UNSUP() values; we normally won't assign them.
*
* VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
* TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
*/
#define UNSUP_MASK 0x8000
#define UNSUP(x) (UNSUP_MASK | (x))
#define IS_UNSUP(info, x) \
((UNSUP_MASK & (x)) && \
!((info)->features & TWL4030_ALLOW_UNSUPPORTED))
#define LDO_MV(x) (~UNSUP_MASK & (x))
static const u16 VAUX1_VSEL_table[] = {
UNSUP(1500), UNSUP(1800), 2500, 2800,
3000, 3000, 3000, 3000,
};
static const u16 VAUX2_4030_VSEL_table[] = {
UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
1500, 1800, UNSUP(1850), 2500,
UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
};
static const u16 VAUX2_VSEL_table[] = {
1700, 1700, 1900, 1300,
1500, 1800, 2000, 2500,
2100, 2800, 2200, 2300,
2400, 2400, 2400, 2400,
};
static const u16 VAUX3_VSEL_table[] = {
1500, 1800, 2500, 2800,
3000, 3000, 3000, 3000,
};
static const u16 VAUX4_VSEL_table[] = {
700, 1000, 1200, UNSUP(1300),
1500, 1800, UNSUP(1850), 2500,
UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
};
static const u16 VMMC1_VSEL_table[] = {
1850, 2850, 3000, 3150,
};
static const u16 VMMC2_VSEL_table[] = {
UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
2600, 2800, 2850, 3000,
3150, 3150, 3150, 3150,
};
static const u16 VPLL1_VSEL_table[] = {
1000, 1200, 1300, 1800,
UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
};
static const u16 VPLL2_VSEL_table[] = {
700, 1000, 1200, 1300,
UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
};
static const u16 VSIM_VSEL_table[] = {
UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
2800, 3000, 3000, 3000,
};
static const u16 VDAC_VSEL_table[] = {
1200, 1300, 1800, 1800,
};
static const u16 VIO_VSEL_table[] = {
1800, 1850,
};
static const u16 VINTANA2_VSEL_table[] = {
2500, 2750,
};
/* 600mV to 1450mV in 12.5 mV steps */
static const struct linear_range VDD1_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 68, 12500)
};
/* 600mV to 1450mV in 12.5 mV steps, everything above = 1500mV */
static const struct linear_range VDD2_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 68, 12500),
REGULATOR_LINEAR_RANGE(1500000, 69, 69, 12500)
};
static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int mV = info->table[index];
return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000);
}
static int
twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
selector);
}
static int twl4030ldo_get_voltage_sel(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
if (vsel < 0)
return vsel;
vsel &= info->table_len - 1;
return vsel;
}
static const struct regulator_ops twl4030ldo_ops = {
.list_voltage = twl4030ldo_list_voltage,
.set_voltage_sel = twl4030ldo_set_voltage_sel,
.get_voltage_sel = twl4030ldo_get_voltage_sel,
.enable = twl4030reg_enable,
.disable = twl4030reg_disable,
.is_enabled = twl4030reg_is_enabled,
.set_mode = twl4030reg_set_mode,
.get_status = twl4030reg_get_status,
};
static int
twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
unsigned *selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS_4030, vsel);
return 0;
}
static int twl4030smps_get_voltage(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel;
vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
VREG_VOLTAGE_SMPS_4030);
return vsel * 12500 + 600000;
}
static const struct regulator_ops twl4030smps_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage = twl4030smps_set_voltage,
.get_voltage = twl4030smps_get_voltage,
};
/*----------------------------------------------------------------------*/
static const struct regulator_ops twl4030fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = twl4030reg_enable,
.disable = twl4030reg_disable,
.is_enabled = twl4030reg_is_enabled,
.set_mode = twl4030reg_set_mode,
.get_status = twl4030reg_get_status,
};
/*----------------------------------------------------------------------*/
#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
static const struct twlreg_info TWL4030_INFO_##label = { \
.base = offset, \
.id = num, \
.table_len = ARRAY_SIZE(label##_VSEL_table), \
.table = label##_VSEL_table, \
.remap = remap_conf, \
.desc = { \
.name = #label, \
.id = TWL4030_REG_##label, \
.n_voltages = ARRAY_SIZE(label##_VSEL_table), \
.ops = &twl4030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = turnon_delay, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf, \
n_volt) \
static const struct twlreg_info TWL4030_INFO_##label = { \
.base = offset, \
.id = num, \
.remap = remap_conf, \
.desc = { \
.name = #label, \
.id = TWL4030_REG_##label, \
.ops = &twl4030smps_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_time = turnon_delay, \
.of_map_mode = twl4030reg_map_mode, \
.n_voltages = n_volt, \
.n_linear_ranges = ARRAY_SIZE(label ## _ranges), \
.linear_ranges = label ## _ranges, \
}, \
}
#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf) \
static const struct twlreg_info TWLFIXED_INFO_##label = { \
.base = offset, \
.id = num, \
.remap = remap_conf, \
.desc = { \
.name = #label, \
.id = TWL4030##_REG_##label, \
.n_voltages = 1, \
.ops = &twl4030fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = mVolts * 1000, \
.enable_time = turnon_delay, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
/*
* We list regulators here if systems need some level of
* software control over them after boot.
*/
TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08, 68);
TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08, 69);
/* VUSBCP is managed *only* by the USB subchip */
TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
#define TWL_OF_MATCH(comp, family, label) \
{ \
.compatible = comp, \
.data = &family##_INFO_##label, \
}
#define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
#define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label)
#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
static const struct of_device_id twl_of_match[] = {
TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
{},
};
MODULE_DEVICE_TABLE(of, twl_of_match);
static int twlreg_probe(struct platform_device *pdev)
{
int id;
struct twlreg_info *info;
const struct twlreg_info *template;
struct regulator_init_data *initdata;
struct regulation_constraints *c;
struct regulator_dev *rdev;
struct regulator_config config = { };
template = of_device_get_match_data(&pdev->dev);
if (!template)
return -ENODEV;
id = template->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
&template->desc);
if (!initdata)
return -EINVAL;
info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
/* Constrain board-specific capabilities according to what
* this driver and the chip itself can actually do.
*/
c = &initdata->constraints;
c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS;
switch (id) {
case TWL4030_REG_VIO:
case TWL4030_REG_VDD1:
case TWL4030_REG_VDD2:
case TWL4030_REG_VPLL1:
case TWL4030_REG_VINTANA1:
case TWL4030_REG_VINTANA2:
case TWL4030_REG_VINTDIG:
c->always_on = true;
break;
default:
break;
}
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = info;
config.of_node = pdev->dev.of_node;
rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "can't register %s, %ld\n",
info->desc.name, PTR_ERR(rdev));
return PTR_ERR(rdev);
}
platform_set_drvdata(pdev, rdev);
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap);
/* NOTE: many regulators support short-circuit IRQs (presentable
* as REGULATOR_OVER_CURRENT notifications?) configured via:
* - SC_CONFIG
* - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
* - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
* - IT_CONFIG
*/
return 0;
}
MODULE_ALIAS("platform:twl4030_reg");
static struct platform_driver twlreg_driver = {
.probe = twlreg_probe,
/* NOTE: short name, to work around driver model truncation of
* "twl_regulator.12" (and friends) to "twl_regulator.1".
*/
.driver = {
.name = "twl4030_reg",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(twl_of_match),
},
};
static int __init twlreg_init(void)
{
return platform_driver_register(&twlreg_driver);
}
subsys_initcall(twlreg_init);
static void __exit twlreg_exit(void)
{
platform_driver_unregister(&twlreg_driver);
}
module_exit(twlreg_exit)
MODULE_DESCRIPTION("TWL4030 regulator driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/twl-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* gpio-regulator.c
*
* Copyright 2011 Heiko Stuebner <[email protected]>
*
* based on fixed.c
*
* Copyright 2008 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <[email protected]>
*
* Copyright (c) 2009 Nokia Corporation
* Roger Quadros <[email protected]>
*
* This is useful for systems with mixed controllable and
* non-controllable regulators, as well as for allowing testing on
* systems with no controllable regulators.
*/
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/of.h>
struct gpio_regulator_data {
struct regulator_desc desc;
struct gpio_desc **gpiods;
int nr_gpios;
struct gpio_regulator_state *states;
int nr_states;
int state;
};
static int gpio_regulator_get_value(struct regulator_dev *dev)
{
struct gpio_regulator_data *data = rdev_get_drvdata(dev);
int ptr;
for (ptr = 0; ptr < data->nr_states; ptr++)
if (data->states[ptr].gpios == data->state)
return data->states[ptr].value;
return -EINVAL;
}
static int gpio_regulator_set_voltage(struct regulator_dev *dev,
int min_uV, int max_uV,
unsigned *selector)
{
struct gpio_regulator_data *data = rdev_get_drvdata(dev);
int ptr, target = 0, state, best_val = INT_MAX;
for (ptr = 0; ptr < data->nr_states; ptr++)
if (data->states[ptr].value < best_val &&
data->states[ptr].value >= min_uV &&
data->states[ptr].value <= max_uV) {
target = data->states[ptr].gpios;
best_val = data->states[ptr].value;
if (selector)
*selector = ptr;
}
if (best_val == INT_MAX)
return -EINVAL;
for (ptr = 0; ptr < data->nr_gpios; ptr++) {
state = (target & (1 << ptr)) >> ptr;
gpiod_set_value_cansleep(data->gpiods[ptr], state);
}
data->state = target;
return 0;
}
static int gpio_regulator_list_voltage(struct regulator_dev *dev,
unsigned selector)
{
struct gpio_regulator_data *data = rdev_get_drvdata(dev);
if (selector >= data->nr_states)
return -EINVAL;
return data->states[selector].value;
}
static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
int min_uA, int max_uA)
{
struct gpio_regulator_data *data = rdev_get_drvdata(dev);
int ptr, target = 0, state, best_val = 0;
for (ptr = 0; ptr < data->nr_states; ptr++)
if (data->states[ptr].value > best_val &&
data->states[ptr].value >= min_uA &&
data->states[ptr].value <= max_uA) {
target = data->states[ptr].gpios;
best_val = data->states[ptr].value;
}
if (best_val == 0)
return -EINVAL;
for (ptr = 0; ptr < data->nr_gpios; ptr++) {
state = (target & (1 << ptr)) >> ptr;
gpiod_set_value_cansleep(data->gpiods[ptr], state);
}
data->state = target;
return 0;
}
static const struct regulator_ops gpio_regulator_voltage_ops = {
.get_voltage = gpio_regulator_get_value,
.set_voltage = gpio_regulator_set_voltage,
.list_voltage = gpio_regulator_list_voltage,
};
static struct gpio_regulator_config *
of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
const struct regulator_desc *desc)
{
struct gpio_regulator_config *config;
const char *regtype;
int proplen, i;
int ngpios;
int ret;
config = devm_kzalloc(dev,
sizeof(struct gpio_regulator_config),
GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
config->init_data = of_get_regulator_init_data(dev, np, desc);
if (!config->init_data)
return ERR_PTR(-EINVAL);
config->supply_name = config->init_data->constraints.name;
if (config->init_data->constraints.boot_on)
config->enabled_at_boot = true;
/*
* Do not use: undocumented device tree property.
* This is kept around solely for device tree ABI stability.
*/
if (of_property_read_bool(np, "enable-at-boot"))
config->enabled_at_boot = true;
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
/* Fetch GPIO init levels */
ngpios = gpiod_count(dev, NULL);
if (ngpios > 0) {
config->gflags = devm_kzalloc(dev,
sizeof(enum gpiod_flags)
* ngpios,
GFP_KERNEL);
if (!config->gflags)
return ERR_PTR(-ENOMEM);
for (i = 0; i < ngpios; i++) {
u32 val;
ret = of_property_read_u32_index(np, "gpios-states", i,
&val);
/* Default to high per specification */
if (ret)
config->gflags[i] = GPIOD_OUT_HIGH;
else
config->gflags[i] =
val ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
}
}
config->ngpios = ngpios;
/* Fetch states. */
proplen = of_property_count_u32_elems(np, "states");
if (proplen < 0) {
dev_err(dev, "No 'states' property found\n");
return ERR_PTR(-EINVAL);
}
config->states = devm_kcalloc(dev,
proplen / 2,
sizeof(struct gpio_regulator_state),
GFP_KERNEL);
if (!config->states)
return ERR_PTR(-ENOMEM);
for (i = 0; i < proplen / 2; i++) {
of_property_read_u32_index(np, "states", i * 2,
&config->states[i].value);
of_property_read_u32_index(np, "states", i * 2 + 1,
&config->states[i].gpios);
}
config->nr_states = i;
config->type = REGULATOR_VOLTAGE;
ret = of_property_read_string(np, "regulator-type", ®type);
if (ret >= 0) {
if (!strncmp("voltage", regtype, 7))
config->type = REGULATOR_VOLTAGE;
else if (!strncmp("current", regtype, 7))
config->type = REGULATOR_CURRENT;
else
dev_warn(dev, "Unknown regulator-type '%s'\n",
regtype);
}
if (of_property_present(np, "vin-supply"))
config->input_supply = "vin";
return config;
}
static const struct regulator_ops gpio_regulator_current_ops = {
.get_current_limit = gpio_regulator_get_value,
.set_current_limit = gpio_regulator_set_current_limit,
};
static int gpio_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct gpio_regulator_config *config = dev_get_platdata(dev);
struct device_node *np = dev->of_node;
struct gpio_regulator_data *drvdata;
struct regulator_config cfg = { };
struct regulator_dev *rdev;
enum gpiod_flags gflags;
int ptr, ret, state, i;
drvdata = devm_kzalloc(dev, sizeof(struct gpio_regulator_data),
GFP_KERNEL);
if (drvdata == NULL)
return -ENOMEM;
if (np) {
config = of_get_gpio_regulator_config(dev, np,
&drvdata->desc);
if (IS_ERR(config))
return PTR_ERR(config);
}
drvdata->desc.name = devm_kstrdup(dev, config->supply_name, GFP_KERNEL);
if (drvdata->desc.name == NULL) {
dev_err(dev, "Failed to allocate supply name\n");
return -ENOMEM;
}
drvdata->gpiods = devm_kzalloc(dev, sizeof(struct gpio_desc *),
GFP_KERNEL);
if (config->input_supply) {
drvdata->desc.supply_name = devm_kstrdup(&pdev->dev,
config->input_supply,
GFP_KERNEL);
if (!drvdata->desc.supply_name) {
dev_err(&pdev->dev,
"Failed to allocate input supply\n");
return -ENOMEM;
}
}
if (!drvdata->gpiods)
return -ENOMEM;
for (i = 0; i < config->ngpios; i++) {
drvdata->gpiods[i] = devm_gpiod_get_index(dev,
NULL,
i,
config->gflags[i]);
if (IS_ERR(drvdata->gpiods[i]))
return PTR_ERR(drvdata->gpiods[i]);
/* This is good to know */
gpiod_set_consumer_name(drvdata->gpiods[i], drvdata->desc.name);
}
drvdata->nr_gpios = config->ngpios;
drvdata->states = devm_kmemdup(dev,
config->states,
config->nr_states *
sizeof(struct gpio_regulator_state),
GFP_KERNEL);
if (drvdata->states == NULL) {
dev_err(dev, "Failed to allocate state data\n");
return -ENOMEM;
}
drvdata->nr_states = config->nr_states;
drvdata->desc.owner = THIS_MODULE;
drvdata->desc.enable_time = config->startup_delay;
/* handle regulator type*/
switch (config->type) {
case REGULATOR_VOLTAGE:
drvdata->desc.type = REGULATOR_VOLTAGE;
drvdata->desc.ops = &gpio_regulator_voltage_ops;
drvdata->desc.n_voltages = config->nr_states;
break;
case REGULATOR_CURRENT:
drvdata->desc.type = REGULATOR_CURRENT;
drvdata->desc.ops = &gpio_regulator_current_ops;
break;
default:
dev_err(dev, "No regulator type set\n");
return -EINVAL;
}
/* build initial state from gpio init data. */
state = 0;
for (ptr = 0; ptr < drvdata->nr_gpios; ptr++) {
if (config->gflags[ptr] == GPIOD_OUT_HIGH)
state |= (1 << ptr);
}
drvdata->state = state;
cfg.dev = dev;
cfg.init_data = config->init_data;
cfg.driver_data = drvdata;
cfg.of_node = np;
/*
* The signal will be inverted by the GPIO core if flagged so in the
* descriptor.
*/
if (config->enabled_at_boot)
gflags = GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE;
else
gflags = GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE;
cfg.ena_gpiod = gpiod_get_optional(dev, "enable", gflags);
if (IS_ERR(cfg.ena_gpiod))
return PTR_ERR(cfg.ena_gpiod);
rdev = devm_regulator_register(dev, &drvdata->desc, &cfg);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "Failed to register regulator: %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, drvdata);
return 0;
}
#if defined(CONFIG_OF)
static const struct of_device_id regulator_gpio_of_match[] = {
{ .compatible = "regulator-gpio", },
{},
};
MODULE_DEVICE_TABLE(of, regulator_gpio_of_match);
#endif
static struct platform_driver gpio_regulator_driver = {
.probe = gpio_regulator_probe,
.driver = {
.name = "gpio-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(regulator_gpio_of_match),
},
};
static int __init gpio_regulator_init(void)
{
return platform_driver_register(&gpio_regulator_driver);
}
subsys_initcall(gpio_regulator_init);
static void __exit gpio_regulator_exit(void)
{
platform_driver_unregister(&gpio_regulator_driver);
}
module_exit(gpio_regulator_exit);
MODULE_AUTHOR("Heiko Stuebner <[email protected]>");
MODULE_DESCRIPTION("gpio voltage regulator");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:gpio-regulator");
| linux-master | drivers/regulator/gpio-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Voltage regulator support for AMS AS3722 PMIC
*
* Copyright (C) 2013 ams
*
* Author: Florian Lobmaier <[email protected]>
* Author: Laxman Dewangan <[email protected]>
*/
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mfd/as3722.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* Regulator IDs */
enum as3722_regulators_id {
AS3722_REGULATOR_ID_SD0,
AS3722_REGULATOR_ID_SD1,
AS3722_REGULATOR_ID_SD2,
AS3722_REGULATOR_ID_SD3,
AS3722_REGULATOR_ID_SD4,
AS3722_REGULATOR_ID_SD5,
AS3722_REGULATOR_ID_SD6,
AS3722_REGULATOR_ID_LDO0,
AS3722_REGULATOR_ID_LDO1,
AS3722_REGULATOR_ID_LDO2,
AS3722_REGULATOR_ID_LDO3,
AS3722_REGULATOR_ID_LDO4,
AS3722_REGULATOR_ID_LDO5,
AS3722_REGULATOR_ID_LDO6,
AS3722_REGULATOR_ID_LDO7,
AS3722_REGULATOR_ID_LDO9,
AS3722_REGULATOR_ID_LDO10,
AS3722_REGULATOR_ID_LDO11,
AS3722_REGULATOR_ID_MAX,
};
struct as3722_register_mapping {
u8 regulator_id;
const char *name;
const char *sname;
u8 vsel_reg;
u8 vsel_mask;
int n_voltages;
u32 enable_reg;
u8 enable_mask;
u32 control_reg;
u8 mode_mask;
u32 sleep_ctrl_reg;
u8 sleep_ctrl_mask;
};
struct as3722_regulator_config_data {
struct regulator_init_data *reg_init;
bool enable_tracking;
int ext_control;
};
struct as3722_regulators {
struct device *dev;
struct as3722 *as3722;
struct regulator_desc desc[AS3722_REGULATOR_ID_MAX];
struct as3722_regulator_config_data
reg_config_data[AS3722_REGULATOR_ID_MAX];
};
static const struct as3722_register_mapping as3722_reg_lookup[] = {
{
.regulator_id = AS3722_REGULATOR_ID_SD0,
.name = "as3722-sd0",
.vsel_reg = AS3722_SD0_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(0),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
.sleep_ctrl_mask = AS3722_SD0_EXT_ENABLE_MASK,
.control_reg = AS3722_SD0_CONTROL_REG,
.mode_mask = AS3722_SD0_MODE_FAST,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD1,
.name = "as3722-sd1",
.vsel_reg = AS3722_SD1_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(1),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
.sleep_ctrl_mask = AS3722_SD1_EXT_ENABLE_MASK,
.control_reg = AS3722_SD1_CONTROL_REG,
.mode_mask = AS3722_SD1_MODE_FAST,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD2,
.name = "as3722-sd2",
.sname = "vsup-sd2",
.vsel_reg = AS3722_SD2_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(2),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
.sleep_ctrl_mask = AS3722_SD2_EXT_ENABLE_MASK,
.control_reg = AS3722_SD23_CONTROL_REG,
.mode_mask = AS3722_SD2_MODE_FAST,
.n_voltages = AS3722_SD2_VSEL_MAX + 1,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD3,
.name = "as3722-sd3",
.sname = "vsup-sd3",
.vsel_reg = AS3722_SD3_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(3),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
.sleep_ctrl_mask = AS3722_SD3_EXT_ENABLE_MASK,
.control_reg = AS3722_SD23_CONTROL_REG,
.mode_mask = AS3722_SD3_MODE_FAST,
.n_voltages = AS3722_SD2_VSEL_MAX + 1,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD4,
.name = "as3722-sd4",
.sname = "vsup-sd4",
.vsel_reg = AS3722_SD4_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(4),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
.sleep_ctrl_mask = AS3722_SD4_EXT_ENABLE_MASK,
.control_reg = AS3722_SD4_CONTROL_REG,
.mode_mask = AS3722_SD4_MODE_FAST,
.n_voltages = AS3722_SD2_VSEL_MAX + 1,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD5,
.name = "as3722-sd5",
.sname = "vsup-sd5",
.vsel_reg = AS3722_SD5_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(5),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
.sleep_ctrl_mask = AS3722_SD5_EXT_ENABLE_MASK,
.control_reg = AS3722_SD5_CONTROL_REG,
.mode_mask = AS3722_SD5_MODE_FAST,
.n_voltages = AS3722_SD2_VSEL_MAX + 1,
},
{
.regulator_id = AS3722_REGULATOR_ID_SD6,
.name = "as3722-sd6",
.vsel_reg = AS3722_SD6_VOLTAGE_REG,
.vsel_mask = AS3722_SD_VSEL_MASK,
.enable_reg = AS3722_SD_CONTROL_REG,
.enable_mask = AS3722_SDn_CTRL(6),
.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
.sleep_ctrl_mask = AS3722_SD6_EXT_ENABLE_MASK,
.control_reg = AS3722_SD6_CONTROL_REG,
.mode_mask = AS3722_SD6_MODE_FAST,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO0,
.name = "as3722-ldo0",
.sname = "vin-ldo0",
.vsel_reg = AS3722_LDO0_VOLTAGE_REG,
.vsel_mask = AS3722_LDO0_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO0_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
.sleep_ctrl_mask = AS3722_LDO0_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO0_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO1,
.name = "as3722-ldo1",
.sname = "vin-ldo1-6",
.vsel_reg = AS3722_LDO1_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO1_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
.sleep_ctrl_mask = AS3722_LDO1_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO2,
.name = "as3722-ldo2",
.sname = "vin-ldo2-5-7",
.vsel_reg = AS3722_LDO2_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO2_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
.sleep_ctrl_mask = AS3722_LDO2_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO3,
.name = "as3722-ldo3",
.sname = "vin-ldo3-4",
.vsel_reg = AS3722_LDO3_VOLTAGE_REG,
.vsel_mask = AS3722_LDO3_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO3_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
.sleep_ctrl_mask = AS3722_LDO3_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO3_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO4,
.name = "as3722-ldo4",
.sname = "vin-ldo3-4",
.vsel_reg = AS3722_LDO4_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO4_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
.sleep_ctrl_mask = AS3722_LDO4_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO5,
.name = "as3722-ldo5",
.sname = "vin-ldo2-5-7",
.vsel_reg = AS3722_LDO5_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO5_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
.sleep_ctrl_mask = AS3722_LDO5_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO6,
.name = "as3722-ldo6",
.sname = "vin-ldo1-6",
.vsel_reg = AS3722_LDO6_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO6_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
.sleep_ctrl_mask = AS3722_LDO6_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO7,
.name = "as3722-ldo7",
.sname = "vin-ldo2-5-7",
.vsel_reg = AS3722_LDO7_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL0_REG,
.enable_mask = AS3722_LDO7_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
.sleep_ctrl_mask = AS3722_LDO7_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO9,
.name = "as3722-ldo9",
.sname = "vin-ldo9-10",
.vsel_reg = AS3722_LDO9_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL1_REG,
.enable_mask = AS3722_LDO9_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
.sleep_ctrl_mask = AS3722_LDO9_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO10,
.name = "as3722-ldo10",
.sname = "vin-ldo9-10",
.vsel_reg = AS3722_LDO10_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL1_REG,
.enable_mask = AS3722_LDO10_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
.sleep_ctrl_mask = AS3722_LDO10_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
{
.regulator_id = AS3722_REGULATOR_ID_LDO11,
.name = "as3722-ldo11",
.sname = "vin-ldo11",
.vsel_reg = AS3722_LDO11_VOLTAGE_REG,
.vsel_mask = AS3722_LDO_VSEL_MASK,
.enable_reg = AS3722_LDOCONTROL1_REG,
.enable_mask = AS3722_LDO11_CTRL,
.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
.sleep_ctrl_mask = AS3722_LDO11_EXT_ENABLE_MASK,
.n_voltages = AS3722_LDO_NUM_VOLT,
},
};
static const unsigned int as3722_ldo_current[] = { 150000, 300000 };
static const unsigned int as3722_sd016_current[] = {
2500000, 3000000, 3500000
};
static const struct regulator_ops as3722_ldo0_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
};
static const struct regulator_ops as3722_ldo0_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
};
static int as3722_ldo3_set_tracking_mode(struct as3722_regulators *as3722_reg,
int id, u8 mode)
{
struct as3722 *as3722 = as3722_reg->as3722;
switch (mode) {
case AS3722_LDO3_MODE_PMOS:
case AS3722_LDO3_MODE_PMOS_TRACKING:
case AS3722_LDO3_MODE_NMOS:
case AS3722_LDO3_MODE_SWITCH:
return as3722_update_bits(as3722,
as3722_reg_lookup[id].vsel_reg,
AS3722_LDO3_MODE_MASK, mode);
default:
return -EINVAL;
}
}
static int as3722_ldo3_get_current_limit(struct regulator_dev *rdev)
{
return 150000;
}
static const struct regulator_ops as3722_ldo3_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = as3722_ldo3_get_current_limit,
};
static const struct regulator_ops as3722_ldo3_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = as3722_ldo3_get_current_limit,
};
static const struct regulator_ops as3722_ldo6_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.get_bypass = regulator_get_bypass_regmap,
.set_bypass = regulator_set_bypass_regmap,
};
static const struct regulator_ops as3722_ldo6_extcntrl_ops = {
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.get_bypass = regulator_get_bypass_regmap,
.set_bypass = regulator_set_bypass_regmap,
};
static const struct linear_range as3722_ldo_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
};
static const struct regulator_ops as3722_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
};
static const struct regulator_ops as3722_ldo_extcntrl_ops = {
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
};
static unsigned int as3722_sd_get_mode(struct regulator_dev *rdev)
{
struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
struct as3722 *as3722 = as3722_regs->as3722;
int id = rdev_get_id(rdev);
u32 val;
int ret;
if (!as3722_reg_lookup[id].control_reg)
return -ENOTSUPP;
ret = as3722_read(as3722, as3722_reg_lookup[id].control_reg, &val);
if (ret < 0) {
dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
as3722_reg_lookup[id].control_reg, ret);
return ret;
}
if (val & as3722_reg_lookup[id].mode_mask)
return REGULATOR_MODE_FAST;
else
return REGULATOR_MODE_NORMAL;
}
static int as3722_sd_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
struct as3722 *as3722 = as3722_regs->as3722;
u8 id = rdev_get_id(rdev);
u8 val = 0;
int ret;
if (!as3722_reg_lookup[id].control_reg)
return -ERANGE;
switch (mode) {
case REGULATOR_MODE_FAST:
val = as3722_reg_lookup[id].mode_mask;
fallthrough;
case REGULATOR_MODE_NORMAL:
break;
default:
return -EINVAL;
}
ret = as3722_update_bits(as3722, as3722_reg_lookup[id].control_reg,
as3722_reg_lookup[id].mode_mask, val);
if (ret < 0) {
dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
as3722_reg_lookup[id].control_reg, ret);
return ret;
}
return ret;
}
static bool as3722_sd0_is_low_voltage(struct as3722_regulators *as3722_regs)
{
int err;
unsigned val;
err = as3722_read(as3722_regs->as3722, AS3722_FUSE7_REG, &val);
if (err < 0) {
dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
AS3722_FUSE7_REG, err);
return false;
}
if (val & AS3722_FUSE7_SD0_LOW_VOLTAGE)
return true;
return false;
}
static const struct linear_range as3722_sd2345_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500),
REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
};
static const struct regulator_ops as3722_sd016_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.get_mode = as3722_sd_get_mode,
.set_mode = as3722_sd_set_mode,
};
static const struct regulator_ops as3722_sd016_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.get_mode = as3722_sd_get_mode,
.set_mode = as3722_sd_set_mode,
};
static const struct regulator_ops as3722_sd2345_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.get_mode = as3722_sd_get_mode,
.set_mode = as3722_sd_set_mode,
};
static const struct regulator_ops as3722_sd2345_extcntrl_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.get_mode = as3722_sd_get_mode,
.set_mode = as3722_sd_set_mode,
};
static int as3722_extreg_init(struct as3722_regulators *as3722_regs, int id,
int ext_pwr_ctrl)
{
int ret;
unsigned int val;
if ((ext_pwr_ctrl < AS3722_EXT_CONTROL_ENABLE1) ||
(ext_pwr_ctrl > AS3722_EXT_CONTROL_ENABLE3))
return -EINVAL;
val = ext_pwr_ctrl << (ffs(as3722_reg_lookup[id].sleep_ctrl_mask) - 1);
ret = as3722_update_bits(as3722_regs->as3722,
as3722_reg_lookup[id].sleep_ctrl_reg,
as3722_reg_lookup[id].sleep_ctrl_mask, val);
if (ret < 0)
dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
as3722_reg_lookup[id].sleep_ctrl_reg, ret);
return ret;
}
static struct of_regulator_match as3722_regulator_matches[] = {
{ .name = "sd0", },
{ .name = "sd1", },
{ .name = "sd2", },
{ .name = "sd3", },
{ .name = "sd4", },
{ .name = "sd5", },
{ .name = "sd6", },
{ .name = "ldo0", },
{ .name = "ldo1", },
{ .name = "ldo2", },
{ .name = "ldo3", },
{ .name = "ldo4", },
{ .name = "ldo5", },
{ .name = "ldo6", },
{ .name = "ldo7", },
{ .name = "ldo9", },
{ .name = "ldo10", },
{ .name = "ldo11", },
};
static int as3722_get_regulator_dt_data(struct platform_device *pdev,
struct as3722_regulators *as3722_regs)
{
struct device_node *np;
struct as3722_regulator_config_data *reg_config;
u32 prop;
int id;
int ret;
np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
if (!np) {
dev_err(&pdev->dev, "Device is not having regulators node\n");
return -ENODEV;
}
pdev->dev.of_node = np;
ret = of_regulator_match(&pdev->dev, np, as3722_regulator_matches,
ARRAY_SIZE(as3722_regulator_matches));
of_node_put(np);
if (ret < 0) {
dev_err(&pdev->dev, "Parsing of regulator node failed: %d\n",
ret);
return ret;
}
for (id = 0; id < ARRAY_SIZE(as3722_regulator_matches); ++id) {
struct device_node *reg_node;
reg_config = &as3722_regs->reg_config_data[id];
reg_config->reg_init = as3722_regulator_matches[id].init_data;
reg_node = as3722_regulator_matches[id].of_node;
if (!reg_config->reg_init || !reg_node)
continue;
ret = of_property_read_u32(reg_node, "ams,ext-control", &prop);
if (!ret) {
if (prop < 3)
reg_config->ext_control = prop;
else
dev_warn(&pdev->dev,
"ext-control have invalid option: %u\n",
prop);
}
reg_config->enable_tracking =
of_property_read_bool(reg_node, "ams,enable-tracking");
}
return 0;
}
static int as3722_regulator_probe(struct platform_device *pdev)
{
struct as3722 *as3722 = dev_get_drvdata(pdev->dev.parent);
struct as3722_regulators *as3722_regs;
struct as3722_regulator_config_data *reg_config;
struct regulator_dev *rdev;
struct regulator_config config = { };
const struct regulator_ops *ops;
int id;
int ret;
as3722_regs = devm_kzalloc(&pdev->dev, sizeof(*as3722_regs),
GFP_KERNEL);
if (!as3722_regs)
return -ENOMEM;
as3722_regs->dev = &pdev->dev;
as3722_regs->as3722 = as3722;
platform_set_drvdata(pdev, as3722_regs);
ret = as3722_get_regulator_dt_data(pdev, as3722_regs);
if (ret < 0)
return ret;
config.dev = &pdev->dev;
config.driver_data = as3722_regs;
config.regmap = as3722->regmap;
for (id = 0; id < AS3722_REGULATOR_ID_MAX; id++) {
struct regulator_desc *desc;
desc = &as3722_regs->desc[id];
reg_config = &as3722_regs->reg_config_data[id];
desc->name = as3722_reg_lookup[id].name;
desc->supply_name = as3722_reg_lookup[id].sname;
desc->id = as3722_reg_lookup[id].regulator_id;
desc->n_voltages = as3722_reg_lookup[id].n_voltages;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
desc->enable_reg = as3722_reg_lookup[id].enable_reg;
desc->enable_mask = as3722_reg_lookup[id].enable_mask;
desc->vsel_reg = as3722_reg_lookup[id].vsel_reg;
desc->vsel_mask = as3722_reg_lookup[id].vsel_mask;
switch (id) {
case AS3722_REGULATOR_ID_LDO0:
if (reg_config->ext_control)
ops = &as3722_ldo0_extcntrl_ops;
else
ops = &as3722_ldo0_ops;
desc->min_uV = 825000;
desc->uV_step = 25000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
desc->curr_table = as3722_ldo_current;
desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
break;
case AS3722_REGULATOR_ID_LDO3:
if (reg_config->ext_control)
ops = &as3722_ldo3_extcntrl_ops;
else
ops = &as3722_ldo3_ops;
desc->min_uV = 620000;
desc->uV_step = 20000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
if (reg_config->enable_tracking) {
ret = as3722_ldo3_set_tracking_mode(as3722_regs,
id, AS3722_LDO3_MODE_PMOS_TRACKING);
if (ret < 0) {
dev_err(&pdev->dev,
"LDO3 tracking failed: %d\n",
ret);
return ret;
}
}
break;
case AS3722_REGULATOR_ID_LDO6:
if (reg_config->ext_control)
ops = &as3722_ldo6_extcntrl_ops;
else
ops = &as3722_ldo6_ops;
desc->enable_time = 500;
desc->bypass_reg = AS3722_LDO6_VOLTAGE_REG;
desc->bypass_mask = AS3722_LDO_VSEL_MASK;
desc->bypass_val_on = AS3722_LDO6_VSEL_BYPASS;
desc->bypass_val_off = AS3722_LDO6_VSEL_BYPASS;
desc->linear_ranges = as3722_ldo_ranges;
desc->n_linear_ranges = ARRAY_SIZE(as3722_ldo_ranges);
desc->curr_table = as3722_ldo_current;
desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
break;
case AS3722_REGULATOR_ID_SD0:
case AS3722_REGULATOR_ID_SD1:
case AS3722_REGULATOR_ID_SD6:
if (reg_config->ext_control)
ops = &as3722_sd016_extcntrl_ops;
else
ops = &as3722_sd016_ops;
if (id == AS3722_REGULATOR_ID_SD0 &&
as3722_sd0_is_low_voltage(as3722_regs)) {
as3722_regs->desc[id].n_voltages =
AS3722_SD0_VSEL_LOW_VOL_MAX + 1;
as3722_regs->desc[id].min_uV = 410000;
} else {
as3722_regs->desc[id].n_voltages =
AS3722_SD0_VSEL_MAX + 1;
as3722_regs->desc[id].min_uV = 610000;
}
desc->uV_step = 10000;
desc->linear_min_sel = 1;
desc->enable_time = 600;
desc->curr_table = as3722_sd016_current;
desc->n_current_limits =
ARRAY_SIZE(as3722_sd016_current);
if (id == AS3722_REGULATOR_ID_SD0) {
desc->csel_reg = AS3722_OVCURRENT_REG;
desc->csel_mask =
AS3722_OVCURRENT_SD0_TRIP_MASK;
} else if (id == AS3722_REGULATOR_ID_SD1) {
desc->csel_reg = AS3722_OVCURRENT_REG;
desc->csel_mask =
AS3722_OVCURRENT_SD1_TRIP_MASK;
} else if (id == AS3722_REGULATOR_ID_SD6) {
desc->csel_reg = AS3722_OVCURRENT_DEB_REG;
desc->csel_mask =
AS3722_OVCURRENT_SD6_TRIP_MASK;
}
break;
case AS3722_REGULATOR_ID_SD2:
case AS3722_REGULATOR_ID_SD3:
case AS3722_REGULATOR_ID_SD4:
case AS3722_REGULATOR_ID_SD5:
if (reg_config->ext_control)
ops = &as3722_sd2345_extcntrl_ops;
else
ops = &as3722_sd2345_ops;
desc->linear_ranges = as3722_sd2345_ranges;
desc->n_linear_ranges =
ARRAY_SIZE(as3722_sd2345_ranges);
break;
default:
if (reg_config->ext_control)
ops = &as3722_ldo_extcntrl_ops;
else
ops = &as3722_ldo_ops;
desc->enable_time = 500;
desc->linear_ranges = as3722_ldo_ranges;
desc->n_linear_ranges = ARRAY_SIZE(as3722_ldo_ranges);
desc->curr_table = as3722_ldo_current;
desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
break;
}
desc->ops = ops;
config.init_data = reg_config->reg_init;
config.of_node = as3722_regulator_matches[id].of_node;
rdev = devm_regulator_register(&pdev->dev, desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&pdev->dev, "regulator %d register failed %d\n",
id, ret);
return ret;
}
if (reg_config->ext_control) {
ret = regulator_enable_regmap(rdev);
if (ret < 0) {
dev_err(&pdev->dev,
"Regulator %d enable failed: %d\n",
id, ret);
return ret;
}
ret = as3722_extreg_init(as3722_regs, id,
reg_config->ext_control);
if (ret < 0) {
dev_err(&pdev->dev,
"AS3722 ext control failed: %d", ret);
return ret;
}
}
}
return 0;
}
static const struct of_device_id of_as3722_regulator_match[] = {
{ .compatible = "ams,as3722-regulator", },
{},
};
MODULE_DEVICE_TABLE(of, of_as3722_regulator_match);
static struct platform_driver as3722_regulator_driver = {
.driver = {
.name = "as3722-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_as3722_regulator_match,
},
.probe = as3722_regulator_probe,
};
module_platform_driver(as3722_regulator_driver);
MODULE_ALIAS("platform:as3722-regulator");
MODULE_DESCRIPTION("AS3722 regulator driver");
MODULE_AUTHOR("Florian Lobmaier <[email protected]>");
MODULE_AUTHOR("Laxman Dewangan <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/as3722-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2018 BayLibre SAS
// Author: Bartosz Golaszewski <[email protected]>
//
// Regulator driver for MAXIM 77650/77651 charger/power-supply.
#include <linux/of.h>
#include <linux/mfd/max77650.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#define MAX77650_REGULATOR_EN_CTRL_MASK GENMASK(3, 0)
#define MAX77650_REGULATOR_EN_CTRL_BITS(_reg) \
((_reg) & MAX77650_REGULATOR_EN_CTRL_MASK)
#define MAX77650_REGULATOR_ENABLED GENMASK(2, 1)
#define MAX77650_REGULATOR_DISABLED BIT(2)
#define MAX77650_REGULATOR_V_LDO_MASK GENMASK(6, 0)
#define MAX77650_REGULATOR_V_SBB_MASK GENMASK(5, 0)
#define MAX77651_REGULATOR_V_SBB1_MASK GENMASK(5, 2)
#define MAX77651_REGULATOR_V_SBB1_RANGE_MASK GENMASK(1, 0)
#define MAX77650_REGULATOR_AD_MASK BIT(3)
#define MAX77650_REGULATOR_AD_DISABLED 0x00
#define MAX77650_REGULATOR_AD_ENABLED BIT(3)
#define MAX77650_REGULATOR_CURR_LIM_MASK GENMASK(7, 6)
enum {
MAX77650_REGULATOR_ID_LDO = 0,
MAX77650_REGULATOR_ID_SBB0,
MAX77650_REGULATOR_ID_SBB1,
MAX77650_REGULATOR_ID_SBB2,
MAX77650_REGULATOR_NUM_REGULATORS,
};
struct max77650_regulator_desc {
struct regulator_desc desc;
unsigned int regA;
unsigned int regB;
};
static struct max77650_regulator_desc max77651_SBB1_desc;
static const unsigned int max77651_sbb1_volt_range_sel[] = {
0x0, 0x1, 0x2, 0x3
};
static const struct linear_range max77651_sbb1_volt_ranges[] = {
/* range index 0 */
REGULATOR_LINEAR_RANGE(2400000, 0x00, 0x0f, 50000),
/* range index 1 */
REGULATOR_LINEAR_RANGE(3200000, 0x00, 0x0f, 50000),
/* range index 2 */
REGULATOR_LINEAR_RANGE(4000000, 0x00, 0x0f, 50000),
/* range index 3 */
REGULATOR_LINEAR_RANGE(4800000, 0x00, 0x09, 50000),
};
static const unsigned int max77650_current_limit_table[] = {
1000000, 866000, 707000, 500000,
};
static int max77650_regulator_is_enabled(struct regulator_dev *rdev)
{
struct max77650_regulator_desc *rdesc;
struct regmap *map;
int val, rv, en;
rdesc = rdev_get_drvdata(rdev);
map = rdev_get_regmap(rdev);
rv = regmap_read(map, rdesc->regB, &val);
if (rv)
return rv;
en = MAX77650_REGULATOR_EN_CTRL_BITS(val);
return en != MAX77650_REGULATOR_DISABLED;
}
static int max77650_regulator_enable(struct regulator_dev *rdev)
{
struct max77650_regulator_desc *rdesc;
struct regmap *map;
rdesc = rdev_get_drvdata(rdev);
map = rdev_get_regmap(rdev);
return regmap_update_bits(map, rdesc->regB,
MAX77650_REGULATOR_EN_CTRL_MASK,
MAX77650_REGULATOR_ENABLED);
}
static int max77650_regulator_disable(struct regulator_dev *rdev)
{
struct max77650_regulator_desc *rdesc;
struct regmap *map;
rdesc = rdev_get_drvdata(rdev);
map = rdev_get_regmap(rdev);
return regmap_update_bits(map, rdesc->regB,
MAX77650_REGULATOR_EN_CTRL_MASK,
MAX77650_REGULATOR_DISABLED);
}
static const struct regulator_ops max77650_regulator_LDO_ops = {
.is_enabled = max77650_regulator_is_enabled,
.enable = max77650_regulator_enable,
.disable = max77650_regulator_disable,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
static const struct regulator_ops max77650_regulator_SBB_ops = {
.is_enabled = max77650_regulator_is_enabled,
.enable = max77650_regulator_enable,
.disable = max77650_regulator_disable,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
/* Special case for max77651 SBB1 - pickable linear-range voltage mapping. */
static const struct regulator_ops max77651_SBB1_regulator_ops = {
.is_enabled = max77650_regulator_is_enabled,
.enable = max77650_regulator_enable,
.disable = max77650_regulator_disable,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
static struct max77650_regulator_desc max77650_LDO_desc = {
.desc = {
.name = "ldo",
.of_match = of_match_ptr("ldo"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-ldo",
.id = MAX77650_REGULATOR_ID_LDO,
.ops = &max77650_regulator_LDO_ops,
.min_uV = 1350000,
.uV_step = 12500,
.n_voltages = 128,
.vsel_step = 1,
.vsel_mask = MAX77650_REGULATOR_V_LDO_MASK,
.vsel_reg = MAX77650_REG_CNFG_LDO_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_LDO_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
.regA = MAX77650_REG_CNFG_LDO_A,
.regB = MAX77650_REG_CNFG_LDO_B,
};
static struct max77650_regulator_desc max77650_SBB0_desc = {
.desc = {
.name = "sbb0",
.of_match = of_match_ptr("sbb0"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-sbb0",
.id = MAX77650_REGULATOR_ID_SBB0,
.ops = &max77650_regulator_SBB_ops,
.min_uV = 800000,
.uV_step = 25000,
.n_voltages = 64,
.vsel_step = 1,
.vsel_mask = MAX77650_REGULATOR_V_SBB_MASK,
.vsel_reg = MAX77650_REG_CNFG_SBB0_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_SBB0_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.csel_reg = MAX77650_REG_CNFG_SBB0_A,
.csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK,
.curr_table = max77650_current_limit_table,
.n_current_limits = ARRAY_SIZE(max77650_current_limit_table),
},
.regA = MAX77650_REG_CNFG_SBB0_A,
.regB = MAX77650_REG_CNFG_SBB0_B,
};
static struct max77650_regulator_desc max77650_SBB1_desc = {
.desc = {
.name = "sbb1",
.of_match = of_match_ptr("sbb1"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-sbb1",
.id = MAX77650_REGULATOR_ID_SBB1,
.ops = &max77650_regulator_SBB_ops,
.min_uV = 800000,
.uV_step = 12500,
.n_voltages = 64,
.vsel_step = 1,
.vsel_mask = MAX77650_REGULATOR_V_SBB_MASK,
.vsel_reg = MAX77650_REG_CNFG_SBB1_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_SBB1_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.csel_reg = MAX77650_REG_CNFG_SBB1_A,
.csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK,
.curr_table = max77650_current_limit_table,
.n_current_limits = ARRAY_SIZE(max77650_current_limit_table),
},
.regA = MAX77650_REG_CNFG_SBB1_A,
.regB = MAX77650_REG_CNFG_SBB1_B,
};
static struct max77650_regulator_desc max77651_SBB1_desc = {
.desc = {
.name = "sbb1",
.of_match = of_match_ptr("sbb1"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-sbb1",
.id = MAX77650_REGULATOR_ID_SBB1,
.ops = &max77651_SBB1_regulator_ops,
.linear_range_selectors_bitfield = max77651_sbb1_volt_range_sel,
.linear_ranges = max77651_sbb1_volt_ranges,
.n_linear_ranges = ARRAY_SIZE(max77651_sbb1_volt_ranges),
.n_voltages = 58,
.vsel_step = 1,
.vsel_range_mask = MAX77651_REGULATOR_V_SBB1_RANGE_MASK,
.vsel_range_reg = MAX77650_REG_CNFG_SBB1_A,
.vsel_mask = MAX77651_REGULATOR_V_SBB1_MASK,
.vsel_reg = MAX77650_REG_CNFG_SBB1_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_SBB1_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.csel_reg = MAX77650_REG_CNFG_SBB1_A,
.csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK,
.curr_table = max77650_current_limit_table,
.n_current_limits = ARRAY_SIZE(max77650_current_limit_table),
},
.regA = MAX77650_REG_CNFG_SBB1_A,
.regB = MAX77650_REG_CNFG_SBB1_B,
};
static struct max77650_regulator_desc max77650_SBB2_desc = {
.desc = {
.name = "sbb2",
.of_match = of_match_ptr("sbb2"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-sbb0",
.id = MAX77650_REGULATOR_ID_SBB2,
.ops = &max77650_regulator_SBB_ops,
.min_uV = 800000,
.uV_step = 50000,
.n_voltages = 64,
.vsel_step = 1,
.vsel_mask = MAX77650_REGULATOR_V_SBB_MASK,
.vsel_reg = MAX77650_REG_CNFG_SBB2_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_SBB2_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.csel_reg = MAX77650_REG_CNFG_SBB2_A,
.csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK,
.curr_table = max77650_current_limit_table,
.n_current_limits = ARRAY_SIZE(max77650_current_limit_table),
},
.regA = MAX77650_REG_CNFG_SBB2_A,
.regB = MAX77650_REG_CNFG_SBB2_B,
};
static struct max77650_regulator_desc max77651_SBB2_desc = {
.desc = {
.name = "sbb2",
.of_match = of_match_ptr("sbb2"),
.regulators_node = of_match_ptr("regulators"),
.supply_name = "in-sbb0",
.id = MAX77650_REGULATOR_ID_SBB2,
.ops = &max77650_regulator_SBB_ops,
.min_uV = 2400000,
.uV_step = 50000,
.n_voltages = 64,
.vsel_step = 1,
.vsel_mask = MAX77650_REGULATOR_V_SBB_MASK,
.vsel_reg = MAX77650_REG_CNFG_SBB2_A,
.active_discharge_off = MAX77650_REGULATOR_AD_DISABLED,
.active_discharge_on = MAX77650_REGULATOR_AD_ENABLED,
.active_discharge_mask = MAX77650_REGULATOR_AD_MASK,
.active_discharge_reg = MAX77650_REG_CNFG_SBB2_B,
.enable_time = 100,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.csel_reg = MAX77650_REG_CNFG_SBB2_A,
.csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK,
.curr_table = max77650_current_limit_table,
.n_current_limits = ARRAY_SIZE(max77650_current_limit_table),
},
.regA = MAX77650_REG_CNFG_SBB2_A,
.regB = MAX77650_REG_CNFG_SBB2_B,
};
static int max77650_regulator_probe(struct platform_device *pdev)
{
struct max77650_regulator_desc **rdescs;
struct max77650_regulator_desc *rdesc;
struct regulator_config config = { };
struct device *dev, *parent;
struct regulator_dev *rdev;
struct regmap *map;
unsigned int val;
int i, rv;
dev = &pdev->dev;
parent = dev->parent;
if (!dev->of_node)
dev->of_node = parent->of_node;
rdescs = devm_kcalloc(dev, MAX77650_REGULATOR_NUM_REGULATORS,
sizeof(*rdescs), GFP_KERNEL);
if (!rdescs)
return -ENOMEM;
map = dev_get_regmap(parent, NULL);
if (!map)
return -ENODEV;
rv = regmap_read(map, MAX77650_REG_CID, &val);
if (rv)
return rv;
rdescs[MAX77650_REGULATOR_ID_LDO] = &max77650_LDO_desc;
rdescs[MAX77650_REGULATOR_ID_SBB0] = &max77650_SBB0_desc;
switch (MAX77650_CID_BITS(val)) {
case MAX77650_CID_77650A:
case MAX77650_CID_77650C:
rdescs[MAX77650_REGULATOR_ID_SBB1] = &max77650_SBB1_desc;
rdescs[MAX77650_REGULATOR_ID_SBB2] = &max77650_SBB2_desc;
break;
case MAX77650_CID_77651A:
case MAX77650_CID_77651B:
rdescs[MAX77650_REGULATOR_ID_SBB1] = &max77651_SBB1_desc;
rdescs[MAX77650_REGULATOR_ID_SBB2] = &max77651_SBB2_desc;
break;
default:
return -ENODEV;
}
config.dev = parent;
for (i = 0; i < MAX77650_REGULATOR_NUM_REGULATORS; i++) {
rdesc = rdescs[i];
config.driver_data = rdesc;
rdev = devm_regulator_register(dev, &rdesc->desc, &config);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
}
return 0;
}
static const struct of_device_id max77650_regulator_of_match[] = {
{ .compatible = "maxim,max77650-regulator" },
{ }
};
MODULE_DEVICE_TABLE(of, max77650_regulator_of_match);
static struct platform_driver max77650_regulator_driver = {
.driver = {
.name = "max77650-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = max77650_regulator_of_match,
},
.probe = max77650_regulator_probe,
};
module_platform_driver(max77650_regulator_driver);
MODULE_DESCRIPTION("MAXIM 77650/77651 regulator driver");
MODULE_AUTHOR("Bartosz Golaszewski <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:max77650-regulator");
| linux-master | drivers/regulator/max77650-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
//
// max20086-regulator.c - MAX20086-MAX20089 camera power protector driver
//
// Copyright (C) 2022 Laurent Pinchart <[email protected]>
// Copyright (C) 2018 Avnet, Inc.
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* Register Offset */
#define MAX20086_REG_MASK 0x00
#define MAX20086_REG_CONFIG 0x01
#define MAX20086_REG_ID 0x02
#define MAX20086_REG_STAT1 0x03
#define MAX20086_REG_STAT2_L 0x04
#define MAX20086_REG_STAT2_H 0x05
#define MAX20086_REG_ADC1 0x06
#define MAX20086_REG_ADC2 0x07
#define MAX20086_REG_ADC3 0x08
#define MAX20086_REG_ADC4 0x09
/* DEVICE IDs */
#define MAX20086_DEVICE_ID_MAX20086 0x40
#define MAX20086_DEVICE_ID_MAX20087 0x20
#define MAX20086_DEVICE_ID_MAX20088 0x10
#define MAX20086_DEVICE_ID_MAX20089 0x00
#define DEVICE_ID_MASK 0xf0
/* Register bits */
#define MAX20086_EN_MASK 0x0f
#define MAX20086_EN_OUT1 0x01
#define MAX20086_EN_OUT2 0x02
#define MAX20086_EN_OUT3 0x04
#define MAX20086_EN_OUT4 0x08
#define MAX20086_INT_DISABLE_ALL 0x3f
#define MAX20086_MAX_REGULATORS 4
struct max20086_chip_info {
u8 id;
unsigned int num_outputs;
};
struct max20086_regulator {
struct device_node *of_node;
struct regulator_init_data *init_data;
const struct regulator_desc *desc;
struct regulator_dev *rdev;
};
struct max20086 {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *ena_gpiod;
const struct max20086_chip_info *info;
struct max20086_regulator regulators[MAX20086_MAX_REGULATORS];
};
static const struct regulator_ops max20086_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
#define MAX20086_REGULATOR_DESC(n) \
{ \
.name = "OUT"#n, \
.supply_name = "in", \
.id = (n) - 1, \
.ops = &max20086_buck_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.enable_reg = MAX20086_REG_CONFIG, \
.enable_mask = 1 << ((n) - 1), \
.enable_val = 1 << ((n) - 1), \
.disable_val = 0, \
}
static const char * const max20086_output_names[] = {
"OUT1",
"OUT2",
"OUT3",
"OUT4",
};
static const struct regulator_desc max20086_regulators[] = {
MAX20086_REGULATOR_DESC(1),
MAX20086_REGULATOR_DESC(2),
MAX20086_REGULATOR_DESC(3),
MAX20086_REGULATOR_DESC(4),
};
static int max20086_regulators_register(struct max20086 *chip)
{
unsigned int i;
for (i = 0; i < chip->info->num_outputs; i++) {
struct max20086_regulator *reg = &chip->regulators[i];
struct regulator_config config = { };
struct regulator_dev *rdev;
config.dev = chip->dev;
config.init_data = reg->init_data;
config.driver_data = chip;
config.of_node = reg->of_node;
config.regmap = chip->regmap;
config.ena_gpiod = chip->ena_gpiod;
rdev = devm_regulator_register(chip->dev, reg->desc, &config);
if (IS_ERR(rdev)) {
dev_err(chip->dev,
"Failed to register regulator output %s\n",
reg->desc->name);
return PTR_ERR(rdev);
}
reg->rdev = rdev;
}
return 0;
}
static int max20086_parse_regulators_dt(struct max20086 *chip, bool *boot_on)
{
struct of_regulator_match matches[MAX20086_MAX_REGULATORS] = { };
struct device_node *node;
unsigned int i;
int ret;
node = of_get_child_by_name(chip->dev->of_node, "regulators");
if (!node) {
dev_err(chip->dev, "regulators node not found\n");
return -ENODEV;
}
for (i = 0; i < chip->info->num_outputs; ++i)
matches[i].name = max20086_output_names[i];
ret = of_regulator_match(chip->dev, node, matches,
chip->info->num_outputs);
of_node_put(node);
if (ret < 0) {
dev_err(chip->dev, "Failed to match regulators\n");
return -EINVAL;
}
*boot_on = false;
for (i = 0; i < chip->info->num_outputs; i++) {
struct max20086_regulator *reg = &chip->regulators[i];
reg->init_data = matches[i].init_data;
reg->of_node = matches[i].of_node;
reg->desc = &max20086_regulators[i];
if (reg->init_data) {
if (reg->init_data->constraints.always_on ||
reg->init_data->constraints.boot_on)
*boot_on = true;
}
}
return 0;
}
static int max20086_detect(struct max20086 *chip)
{
unsigned int data;
int ret;
ret = regmap_read(chip->regmap, MAX20086_REG_ID, &data);
if (ret < 0) {
dev_err(chip->dev, "Failed to read DEVICE_ID reg: %d\n", ret);
return ret;
}
if ((data & DEVICE_ID_MASK) != chip->info->id) {
dev_err(chip->dev, "Invalid device ID 0x%02x\n", data);
return -ENXIO;
}
return 0;
}
static bool max20086_gen_is_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX20086_REG_MASK:
case MAX20086_REG_CONFIG:
return true;
default:
return false;
}
}
static const struct regmap_config max20086_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.writeable_reg = max20086_gen_is_writeable_reg,
.max_register = 0x9,
.cache_type = REGCACHE_NONE,
};
static int max20086_i2c_probe(struct i2c_client *i2c)
{
struct max20086 *chip;
enum gpiod_flags flags;
bool boot_on;
int ret;
chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->dev = &i2c->dev;
chip->info = device_get_match_data(chip->dev);
i2c_set_clientdata(i2c, chip);
chip->regmap = devm_regmap_init_i2c(i2c, &max20086_regmap_config);
if (IS_ERR(chip->regmap)) {
ret = PTR_ERR(chip->regmap);
dev_err(chip->dev, "Failed to allocate register map: %d\n", ret);
return ret;
}
ret = max20086_parse_regulators_dt(chip, &boot_on);
if (ret < 0)
return ret;
ret = max20086_detect(chip);
if (ret < 0)
return ret;
/* Until IRQ support is added, just disable all interrupts. */
ret = regmap_update_bits(chip->regmap, MAX20086_REG_MASK,
MAX20086_INT_DISABLE_ALL,
MAX20086_INT_DISABLE_ALL);
if (ret < 0) {
dev_err(chip->dev, "Failed to disable interrupts: %d\n", ret);
return ret;
}
/*
* Get the enable GPIO. If any of the outputs is marked as being
* enabled at boot, request the GPIO with an initial high state to
* avoid disabling outputs that may have been turned on by the boot
* loader. Otherwise, request it with a low state to enter lower-power
* shutdown.
*/
flags = boot_on ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
chip->ena_gpiod = devm_gpiod_get(chip->dev, "enable", flags);
if (IS_ERR(chip->ena_gpiod)) {
ret = PTR_ERR(chip->ena_gpiod);
dev_err(chip->dev, "Failed to get enable GPIO: %d\n", ret);
return ret;
}
ret = max20086_regulators_register(chip);
if (ret < 0) {
dev_err(chip->dev, "Failed to register regulators: %d\n", ret);
return ret;
}
return 0;
}
static const struct i2c_device_id max20086_i2c_id[] = {
{ "max20086" },
{ "max20087" },
{ "max20088" },
{ "max20089" },
{ /* Sentinel */ },
};
MODULE_DEVICE_TABLE(i2c, max20086_i2c_id);
static const struct of_device_id max20086_dt_ids[] __maybe_unused = {
{
.compatible = "maxim,max20086",
.data = &(const struct max20086_chip_info) {
.id = MAX20086_DEVICE_ID_MAX20086,
.num_outputs = 4,
}
}, {
.compatible = "maxim,max20087",
.data = &(const struct max20086_chip_info) {
.id = MAX20086_DEVICE_ID_MAX20087,
.num_outputs = 4,
}
}, {
.compatible = "maxim,max20088",
.data = &(const struct max20086_chip_info) {
.id = MAX20086_DEVICE_ID_MAX20088,
.num_outputs = 2,
}
}, {
.compatible = "maxim,max20089",
.data = &(const struct max20086_chip_info) {
.id = MAX20086_DEVICE_ID_MAX20089,
.num_outputs = 2,
}
},
{ /* Sentinel */ },
};
MODULE_DEVICE_TABLE(of, max20086_dt_ids);
static struct i2c_driver max20086_regulator_driver = {
.driver = {
.name = "max20086",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(max20086_dt_ids),
},
.probe = max20086_i2c_probe,
.id_table = max20086_i2c_id,
};
module_i2c_driver(max20086_regulator_driver);
MODULE_AUTHOR("Watson Chow <[email protected]>");
MODULE_DESCRIPTION("MAX20086-MAX20089 Camera Power Protector Driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max20086-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Maxim MAX77620 Regulator driver
*
* Copyright (c) 2016-2018, NVIDIA CORPORATION. All rights reserved.
*
* Author: Mallikarjun Kasoju <[email protected]>
* Laxman Dewangan <[email protected]>
*/
#include <linux/init.h>
#include <linux/mfd/max77620.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#define max77620_rails(_name) "max77620-"#_name
/* Power Mode */
#define MAX77620_POWER_MODE_NORMAL 3
#define MAX77620_POWER_MODE_LPM 2
#define MAX77620_POWER_MODE_GLPM 1
#define MAX77620_POWER_MODE_DISABLE 0
/* SD Slew Rate */
#define MAX77620_SD_SR_13_75 0
#define MAX77620_SD_SR_27_5 1
#define MAX77620_SD_SR_55 2
#define MAX77620_SD_SR_100 3
enum max77620_regulators {
MAX77620_REGULATOR_ID_SD0,
MAX77620_REGULATOR_ID_SD1,
MAX77620_REGULATOR_ID_SD2,
MAX77620_REGULATOR_ID_SD3,
MAX77620_REGULATOR_ID_SD4,
MAX77620_REGULATOR_ID_LDO0,
MAX77620_REGULATOR_ID_LDO1,
MAX77620_REGULATOR_ID_LDO2,
MAX77620_REGULATOR_ID_LDO3,
MAX77620_REGULATOR_ID_LDO4,
MAX77620_REGULATOR_ID_LDO5,
MAX77620_REGULATOR_ID_LDO6,
MAX77620_REGULATOR_ID_LDO7,
MAX77620_REGULATOR_ID_LDO8,
MAX77620_NUM_REGS,
};
/* Regulator types */
enum max77620_regulator_type {
MAX77620_REGULATOR_TYPE_SD,
MAX77620_REGULATOR_TYPE_LDO_N,
MAX77620_REGULATOR_TYPE_LDO_P,
};
struct max77620_regulator_info {
u8 type;
u8 fps_addr;
u8 volt_addr;
u8 cfg_addr;
u8 power_mode_mask;
u8 power_mode_shift;
u8 remote_sense_addr;
u8 remote_sense_mask;
struct regulator_desc desc;
};
struct max77620_regulator_pdata {
int active_fps_src;
int active_fps_pd_slot;
int active_fps_pu_slot;
int suspend_fps_src;
int suspend_fps_pd_slot;
int suspend_fps_pu_slot;
int current_mode;
int power_ok;
int ramp_rate_setting;
};
struct max77620_regulator {
struct device *dev;
struct regmap *rmap;
struct max77620_regulator_info *rinfo[MAX77620_NUM_REGS];
struct max77620_regulator_pdata reg_pdata[MAX77620_NUM_REGS];
int enable_power_mode[MAX77620_NUM_REGS];
int current_power_mode[MAX77620_NUM_REGS];
int active_fps_src[MAX77620_NUM_REGS];
};
#define fps_src_name(fps_src) \
(fps_src == MAX77620_FPS_SRC_0 ? "FPS_SRC_0" : \
fps_src == MAX77620_FPS_SRC_1 ? "FPS_SRC_1" : \
fps_src == MAX77620_FPS_SRC_2 ? "FPS_SRC_2" : "FPS_SRC_NONE")
static int max77620_regulator_get_fps_src(struct max77620_regulator *pmic,
int id)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int val;
int ret;
ret = regmap_read(pmic->rmap, rinfo->fps_addr, &val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x read failed %d\n",
rinfo->fps_addr, ret);
return ret;
}
return (val & MAX77620_FPS_SRC_MASK) >> MAX77620_FPS_SRC_SHIFT;
}
static int max77620_regulator_set_fps_src(struct max77620_regulator *pmic,
int fps_src, int id)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int val;
int ret;
if (!rinfo)
return 0;
switch (fps_src) {
case MAX77620_FPS_SRC_0:
case MAX77620_FPS_SRC_1:
case MAX77620_FPS_SRC_2:
case MAX77620_FPS_SRC_NONE:
break;
case MAX77620_FPS_SRC_DEF:
ret = regmap_read(pmic->rmap, rinfo->fps_addr, &val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x read failed %d\n",
rinfo->fps_addr, ret);
return ret;
}
ret = (val & MAX77620_FPS_SRC_MASK) >> MAX77620_FPS_SRC_SHIFT;
pmic->active_fps_src[id] = ret;
return 0;
default:
dev_err(pmic->dev, "Invalid FPS %d for regulator %d\n",
fps_src, id);
return -EINVAL;
}
ret = regmap_update_bits(pmic->rmap, rinfo->fps_addr,
MAX77620_FPS_SRC_MASK,
fps_src << MAX77620_FPS_SRC_SHIFT);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x update failed %d\n",
rinfo->fps_addr, ret);
return ret;
}
pmic->active_fps_src[id] = fps_src;
return 0;
}
static int max77620_regulator_set_fps_slots(struct max77620_regulator *pmic,
int id, bool is_suspend)
{
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int val = 0;
unsigned int mask = 0;
int pu = rpdata->active_fps_pu_slot;
int pd = rpdata->active_fps_pd_slot;
int ret = 0;
if (!rinfo)
return 0;
if (is_suspend) {
pu = rpdata->suspend_fps_pu_slot;
pd = rpdata->suspend_fps_pd_slot;
}
/* FPS power up period setting */
if (pu >= 0) {
val |= (pu << MAX77620_FPS_PU_PERIOD_SHIFT);
mask |= MAX77620_FPS_PU_PERIOD_MASK;
}
/* FPS power down period setting */
if (pd >= 0) {
val |= (pd << MAX77620_FPS_PD_PERIOD_SHIFT);
mask |= MAX77620_FPS_PD_PERIOD_MASK;
}
if (mask) {
ret = regmap_update_bits(pmic->rmap, rinfo->fps_addr,
mask, val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x update failed: %d\n",
rinfo->fps_addr, ret);
return ret;
}
}
return ret;
}
static int max77620_regulator_set_power_mode(struct max77620_regulator *pmic,
int power_mode, int id)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
u8 mask = rinfo->power_mode_mask;
u8 shift = rinfo->power_mode_shift;
u8 addr;
int ret;
switch (rinfo->type) {
case MAX77620_REGULATOR_TYPE_SD:
addr = rinfo->cfg_addr;
break;
default:
addr = rinfo->volt_addr;
break;
}
ret = regmap_update_bits(pmic->rmap, addr, mask, power_mode << shift);
if (ret < 0) {
dev_err(pmic->dev, "Regulator %d mode set failed: %d\n",
id, ret);
return ret;
}
pmic->current_power_mode[id] = power_mode;
return ret;
}
static int max77620_regulator_get_power_mode(struct max77620_regulator *pmic,
int id)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int val, addr;
u8 mask = rinfo->power_mode_mask;
u8 shift = rinfo->power_mode_shift;
int ret;
switch (rinfo->type) {
case MAX77620_REGULATOR_TYPE_SD:
addr = rinfo->cfg_addr;
break;
default:
addr = rinfo->volt_addr;
break;
}
ret = regmap_read(pmic->rmap, addr, &val);
if (ret < 0) {
dev_err(pmic->dev, "Regulator %d: Reg 0x%02x read failed: %d\n",
id, addr, ret);
return ret;
}
return (val & mask) >> shift;
}
static int max77620_read_slew_rate(struct max77620_regulator *pmic, int id)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int rval;
int slew_rate;
int ret;
ret = regmap_read(pmic->rmap, rinfo->cfg_addr, &rval);
if (ret < 0) {
dev_err(pmic->dev, "Register 0x%02x read failed: %d\n",
rinfo->cfg_addr, ret);
return ret;
}
switch (rinfo->type) {
case MAX77620_REGULATOR_TYPE_SD:
slew_rate = (rval >> MAX77620_SD_SR_SHIFT) & 0x3;
switch (slew_rate) {
case 0:
slew_rate = 13750;
break;
case 1:
slew_rate = 27500;
break;
case 2:
slew_rate = 55000;
break;
case 3:
slew_rate = 100000;
break;
}
rinfo->desc.ramp_delay = slew_rate;
break;
default:
slew_rate = rval & 0x1;
switch (slew_rate) {
case 0:
slew_rate = 100000;
break;
case 1:
slew_rate = 5000;
break;
}
rinfo->desc.ramp_delay = slew_rate;
break;
}
return 0;
}
static int max77620_set_slew_rate(struct max77620_regulator *pmic, int id,
int slew_rate)
{
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
unsigned int val;
int ret;
u8 mask;
if (rinfo->type == MAX77620_REGULATOR_TYPE_SD) {
if (slew_rate <= 13750)
val = 0;
else if (slew_rate <= 27500)
val = 1;
else if (slew_rate <= 55000)
val = 2;
else
val = 3;
val <<= MAX77620_SD_SR_SHIFT;
mask = MAX77620_SD_SR_MASK;
} else {
if (slew_rate <= 5000)
val = 1;
else
val = 0;
mask = MAX77620_LDO_SLEW_RATE_MASK;
}
ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr, mask, val);
if (ret < 0) {
dev_err(pmic->dev, "Regulator %d slew rate set failed: %d\n",
id, ret);
return ret;
}
return 0;
}
static int max77620_config_power_ok(struct max77620_regulator *pmic, int id)
{
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
struct max77620_chip *chip = dev_get_drvdata(pmic->dev->parent);
u8 val, mask;
int ret;
switch (chip->chip_id) {
case MAX20024:
if (rpdata->power_ok >= 0) {
if (rinfo->type == MAX77620_REGULATOR_TYPE_SD)
mask = MAX20024_SD_CFG1_MPOK_MASK;
else
mask = MAX20024_LDO_CFG2_MPOK_MASK;
val = rpdata->power_ok ? mask : 0;
ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr,
mask, val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x update failed %d\n",
rinfo->cfg_addr, ret);
return ret;
}
}
break;
default:
break;
}
return 0;
}
static int max77620_init_pmic(struct max77620_regulator *pmic, int id)
{
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
int ret;
max77620_config_power_ok(pmic, id);
/* Update power mode */
ret = max77620_regulator_get_power_mode(pmic, id);
if (ret < 0)
return ret;
pmic->current_power_mode[id] = ret;
pmic->enable_power_mode[id] = MAX77620_POWER_MODE_NORMAL;
if (rpdata->active_fps_src == MAX77620_FPS_SRC_DEF) {
ret = max77620_regulator_get_fps_src(pmic, id);
if (ret < 0)
return ret;
rpdata->active_fps_src = ret;
}
/* If rails are externally control of FPS then enable it always. */
if (rpdata->active_fps_src == MAX77620_FPS_SRC_NONE) {
ret = max77620_regulator_set_power_mode(pmic,
pmic->enable_power_mode[id], id);
if (ret < 0)
return ret;
} else {
if (pmic->current_power_mode[id] !=
pmic->enable_power_mode[id]) {
ret = max77620_regulator_set_power_mode(pmic,
pmic->enable_power_mode[id], id);
if (ret < 0)
return ret;
}
}
ret = max77620_regulator_set_fps_src(pmic, rpdata->active_fps_src, id);
if (ret < 0)
return ret;
ret = max77620_regulator_set_fps_slots(pmic, id, false);
if (ret < 0)
return ret;
if (rpdata->ramp_rate_setting) {
ret = max77620_set_slew_rate(pmic, id,
rpdata->ramp_rate_setting);
if (ret < 0)
return ret;
}
return 0;
}
static int max77620_regulator_enable(struct regulator_dev *rdev)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE)
return 0;
return max77620_regulator_set_power_mode(pmic,
pmic->enable_power_mode[id], id);
}
static int max77620_regulator_disable(struct regulator_dev *rdev)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE)
return 0;
return max77620_regulator_set_power_mode(pmic,
MAX77620_POWER_MODE_DISABLE, id);
}
static int max77620_regulator_is_enabled(struct regulator_dev *rdev)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
int ret;
if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE)
return 1;
ret = max77620_regulator_get_power_mode(pmic, id);
if (ret < 0)
return ret;
if (ret != MAX77620_POWER_MODE_DISABLE)
return 1;
return 0;
}
static int max77620_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
bool fpwm = false;
int power_mode;
int ret;
u8 val;
switch (mode) {
case REGULATOR_MODE_FAST:
fpwm = true;
power_mode = MAX77620_POWER_MODE_NORMAL;
break;
case REGULATOR_MODE_NORMAL:
power_mode = MAX77620_POWER_MODE_NORMAL;
break;
case REGULATOR_MODE_IDLE:
power_mode = MAX77620_POWER_MODE_LPM;
break;
default:
dev_err(pmic->dev, "Regulator %d mode %d is invalid\n",
id, mode);
return -EINVAL;
}
if (rinfo->type != MAX77620_REGULATOR_TYPE_SD)
goto skip_fpwm;
val = (fpwm) ? MAX77620_SD_FPWM_MASK : 0;
ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr,
MAX77620_SD_FPWM_MASK, val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x update failed: %d\n",
rinfo->cfg_addr, ret);
return ret;
}
rpdata->current_mode = mode;
skip_fpwm:
ret = max77620_regulator_set_power_mode(pmic, power_mode, id);
if (ret < 0)
return ret;
pmic->enable_power_mode[id] = power_mode;
return 0;
}
static unsigned int max77620_regulator_get_mode(struct regulator_dev *rdev)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
int fpwm = 0;
int ret;
int pm_mode, reg_mode;
unsigned int val;
ret = max77620_regulator_get_power_mode(pmic, id);
if (ret < 0)
return 0;
pm_mode = ret;
if (rinfo->type == MAX77620_REGULATOR_TYPE_SD) {
ret = regmap_read(pmic->rmap, rinfo->cfg_addr, &val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x read failed: %d\n",
rinfo->cfg_addr, ret);
return ret;
}
fpwm = !!(val & MAX77620_SD_FPWM_MASK);
}
switch (pm_mode) {
case MAX77620_POWER_MODE_NORMAL:
case MAX77620_POWER_MODE_DISABLE:
if (fpwm)
reg_mode = REGULATOR_MODE_FAST;
else
reg_mode = REGULATOR_MODE_NORMAL;
break;
case MAX77620_POWER_MODE_LPM:
case MAX77620_POWER_MODE_GLPM:
reg_mode = REGULATOR_MODE_IDLE;
break;
default:
return 0;
}
return reg_mode;
}
static int max77620_regulator_set_ramp_delay(struct regulator_dev *rdev,
int ramp_delay)
{
struct max77620_regulator *pmic = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
/* Device specific ramp rate setting tells that platform has
* different ramp rate from advertised value. In this case,
* do not configure anything and just return success.
*/
if (rpdata->ramp_rate_setting)
return 0;
return max77620_set_slew_rate(pmic, id, ramp_delay);
}
static int max77620_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct max77620_regulator *pmic = config->driver_data;
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[desc->id];
u32 pval;
int ret;
ret = of_property_read_u32(np, "maxim,active-fps-source", &pval);
rpdata->active_fps_src = (!ret) ? pval : MAX77620_FPS_SRC_DEF;
ret = of_property_read_u32(np, "maxim,active-fps-power-up-slot", &pval);
rpdata->active_fps_pu_slot = (!ret) ? pval : -1;
ret = of_property_read_u32(
np, "maxim,active-fps-power-down-slot", &pval);
rpdata->active_fps_pd_slot = (!ret) ? pval : -1;
ret = of_property_read_u32(np, "maxim,suspend-fps-source", &pval);
rpdata->suspend_fps_src = (!ret) ? pval : -1;
ret = of_property_read_u32(
np, "maxim,suspend-fps-power-up-slot", &pval);
rpdata->suspend_fps_pu_slot = (!ret) ? pval : -1;
ret = of_property_read_u32(
np, "maxim,suspend-fps-power-down-slot", &pval);
rpdata->suspend_fps_pd_slot = (!ret) ? pval : -1;
ret = of_property_read_u32(np, "maxim,power-ok-control", &pval);
if (!ret)
rpdata->power_ok = pval;
else
rpdata->power_ok = -1;
ret = of_property_read_u32(np, "maxim,ramp-rate-setting", &pval);
rpdata->ramp_rate_setting = (!ret) ? pval : 0;
return max77620_init_pmic(pmic, desc->id);
}
static const struct regulator_ops max77620_regulator_ops = {
.is_enabled = max77620_regulator_is_enabled,
.enable = max77620_regulator_enable,
.disable = max77620_regulator_disable,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_mode = max77620_regulator_set_mode,
.get_mode = max77620_regulator_get_mode,
.set_ramp_delay = max77620_regulator_set_ramp_delay,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
#define MAX77620_SD_CNF2_ROVS_EN_NONE 0
#define RAIL_SD(_id, _name, _sname, _volt_mask, _min_uV, _max_uV, \
_step_uV, _rs_add, _rs_mask) \
[MAX77620_REGULATOR_ID_##_id] = { \
.type = MAX77620_REGULATOR_TYPE_SD, \
.volt_addr = MAX77620_REG_##_id, \
.cfg_addr = MAX77620_REG_##_id##_CFG, \
.fps_addr = MAX77620_REG_FPS_##_id, \
.remote_sense_addr = _rs_add, \
.remote_sense_mask = MAX77620_SD_CNF2_ROVS_EN_##_rs_mask, \
.power_mode_mask = MAX77620_SD_POWER_MODE_MASK, \
.power_mode_shift = MAX77620_SD_POWER_MODE_SHIFT, \
.desc = { \
.name = max77620_rails(_name), \
.of_match = of_match_ptr(#_name), \
.regulators_node = of_match_ptr("regulators"), \
.of_parse_cb = max77620_of_parse_cb, \
.supply_name = _sname, \
.id = MAX77620_REGULATOR_ID_##_id, \
.ops = &max77620_regulator_ops, \
.n_voltages = ((_max_uV - _min_uV) / _step_uV) + 1, \
.min_uV = _min_uV, \
.uV_step = _step_uV, \
.enable_time = 500, \
.vsel_mask = MAX77620_##_volt_mask##_VOLT_MASK, \
.vsel_reg = MAX77620_REG_##_id, \
.active_discharge_off = 0, \
.active_discharge_on = MAX77620_SD_CFG1_ADE_ENABLE, \
.active_discharge_mask = MAX77620_SD_CFG1_ADE_MASK, \
.active_discharge_reg = MAX77620_REG_##_id##_CFG, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define RAIL_LDO(_id, _name, _sname, _type, _min_uV, _max_uV, _step_uV) \
[MAX77620_REGULATOR_ID_##_id] = { \
.type = MAX77620_REGULATOR_TYPE_LDO_##_type, \
.volt_addr = MAX77620_REG_##_id##_CFG, \
.cfg_addr = MAX77620_REG_##_id##_CFG2, \
.fps_addr = MAX77620_REG_FPS_##_id, \
.remote_sense_addr = 0xFF, \
.power_mode_mask = MAX77620_LDO_POWER_MODE_MASK, \
.power_mode_shift = MAX77620_LDO_POWER_MODE_SHIFT, \
.desc = { \
.name = max77620_rails(_name), \
.of_match = of_match_ptr(#_name), \
.regulators_node = of_match_ptr("regulators"), \
.of_parse_cb = max77620_of_parse_cb, \
.supply_name = _sname, \
.id = MAX77620_REGULATOR_ID_##_id, \
.ops = &max77620_regulator_ops, \
.n_voltages = ((_max_uV - _min_uV) / _step_uV) + 1, \
.min_uV = _min_uV, \
.uV_step = _step_uV, \
.enable_time = 500, \
.vsel_mask = MAX77620_LDO_VOLT_MASK, \
.vsel_reg = MAX77620_REG_##_id##_CFG, \
.active_discharge_off = 0, \
.active_discharge_on = MAX77620_LDO_CFG2_ADE_ENABLE, \
.active_discharge_mask = MAX77620_LDO_CFG2_ADE_MASK, \
.active_discharge_reg = MAX77620_REG_##_id##_CFG2, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
static struct max77620_regulator_info max77620_regs_info[MAX77620_NUM_REGS] = {
RAIL_SD(SD0, sd0, "in-sd0", SD0, 600000, 1400000, 12500, 0x22, SD0),
RAIL_SD(SD1, sd1, "in-sd1", SD1, 600000, 1550000, 12500, 0x22, SD1),
RAIL_SD(SD2, sd2, "in-sd2", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_SD(SD3, sd3, "in-sd3", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_LDO(LDO0, ldo0, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO1, ldo1, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO2, ldo2, "in-ldo2", P, 800000, 3950000, 50000),
RAIL_LDO(LDO3, ldo3, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO4, ldo4, "in-ldo4-6", P, 800000, 1587500, 12500),
RAIL_LDO(LDO5, ldo5, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO6, ldo6, "in-ldo4-6", P, 800000, 3950000, 50000),
RAIL_LDO(LDO7, ldo7, "in-ldo7-8", N, 800000, 3950000, 50000),
RAIL_LDO(LDO8, ldo8, "in-ldo7-8", N, 800000, 3950000, 50000),
};
static struct max77620_regulator_info max20024_regs_info[MAX77620_NUM_REGS] = {
RAIL_SD(SD0, sd0, "in-sd0", SD0, 800000, 1587500, 12500, 0x22, SD0),
RAIL_SD(SD1, sd1, "in-sd1", SD1, 600000, 3387500, 12500, 0x22, SD1),
RAIL_SD(SD2, sd2, "in-sd2", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_SD(SD3, sd3, "in-sd3", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_SD(SD4, sd4, "in-sd4", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_LDO(LDO0, ldo0, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO1, ldo1, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO2, ldo2, "in-ldo2", P, 800000, 3950000, 50000),
RAIL_LDO(LDO3, ldo3, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO4, ldo4, "in-ldo4-6", P, 800000, 1587500, 12500),
RAIL_LDO(LDO5, ldo5, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO6, ldo6, "in-ldo4-6", P, 800000, 3950000, 50000),
RAIL_LDO(LDO7, ldo7, "in-ldo7-8", N, 800000, 3950000, 50000),
RAIL_LDO(LDO8, ldo8, "in-ldo7-8", N, 800000, 3950000, 50000),
};
static struct max77620_regulator_info max77663_regs_info[MAX77620_NUM_REGS] = {
RAIL_SD(SD0, sd0, "in-sd0", SD0, 600000, 3387500, 12500, 0xFF, NONE),
RAIL_SD(SD1, sd1, "in-sd1", SD1, 800000, 1587500, 12500, 0xFF, NONE),
RAIL_SD(SD2, sd2, "in-sd2", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_SD(SD3, sd3, "in-sd3", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_SD(SD4, sd4, "in-sd4", SDX, 600000, 3787500, 12500, 0xFF, NONE),
RAIL_LDO(LDO0, ldo0, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO1, ldo1, "in-ldo0-1", N, 800000, 2375000, 25000),
RAIL_LDO(LDO2, ldo2, "in-ldo2", P, 800000, 3950000, 50000),
RAIL_LDO(LDO3, ldo3, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO4, ldo4, "in-ldo4-6", P, 800000, 1587500, 12500),
RAIL_LDO(LDO5, ldo5, "in-ldo3-5", P, 800000, 3950000, 50000),
RAIL_LDO(LDO6, ldo6, "in-ldo4-6", P, 800000, 3950000, 50000),
RAIL_LDO(LDO7, ldo7, "in-ldo7-8", N, 800000, 3950000, 50000),
RAIL_LDO(LDO8, ldo8, "in-ldo7-8", N, 800000, 3950000, 50000),
};
static int max77620_regulator_probe(struct platform_device *pdev)
{
struct max77620_chip *max77620_chip = dev_get_drvdata(pdev->dev.parent);
struct max77620_regulator_info *rinfo;
struct device *dev = &pdev->dev;
struct regulator_config config = { };
struct max77620_regulator *pmic;
int ret = 0;
int id;
pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
platform_set_drvdata(pdev, pmic);
pmic->dev = dev;
pmic->rmap = max77620_chip->rmap;
if (!dev->of_node)
dev->of_node = pdev->dev.parent->of_node;
switch (max77620_chip->chip_id) {
case MAX77620:
rinfo = max77620_regs_info;
break;
case MAX20024:
rinfo = max20024_regs_info;
break;
case MAX77663:
rinfo = max77663_regs_info;
break;
default:
return -EINVAL;
}
config.regmap = pmic->rmap;
config.dev = dev;
config.driver_data = pmic;
/*
* Set of_node_reuse flag to prevent driver core from attempting to
* claim any pinmux resources already claimed by the parent device.
* Otherwise PMIC driver will fail to re-probe.
*/
device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
for (id = 0; id < MAX77620_NUM_REGS; id++) {
struct regulator_dev *rdev;
struct regulator_desc *rdesc;
if ((max77620_chip->chip_id == MAX77620) &&
(id == MAX77620_REGULATOR_ID_SD4))
continue;
rdesc = &rinfo[id].desc;
pmic->rinfo[id] = &rinfo[id];
pmic->enable_power_mode[id] = MAX77620_POWER_MODE_NORMAL;
pmic->reg_pdata[id].active_fps_src = -1;
pmic->reg_pdata[id].active_fps_pd_slot = -1;
pmic->reg_pdata[id].active_fps_pu_slot = -1;
pmic->reg_pdata[id].suspend_fps_src = -1;
pmic->reg_pdata[id].suspend_fps_pd_slot = -1;
pmic->reg_pdata[id].suspend_fps_pu_slot = -1;
pmic->reg_pdata[id].power_ok = -1;
pmic->reg_pdata[id].ramp_rate_setting = -1;
ret = max77620_read_slew_rate(pmic, id);
if (ret < 0)
return ret;
rdev = devm_regulator_register(dev, rdesc, &config);
if (IS_ERR(rdev))
return dev_err_probe(dev, PTR_ERR(rdev),
"Regulator registration %s failed\n",
rdesc->name);
}
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max77620_regulator_suspend(struct device *dev)
{
struct max77620_regulator *pmic = dev_get_drvdata(dev);
struct max77620_regulator_pdata *reg_pdata;
int id;
for (id = 0; id < MAX77620_NUM_REGS; id++) {
reg_pdata = &pmic->reg_pdata[id];
max77620_regulator_set_fps_slots(pmic, id, true);
if (reg_pdata->suspend_fps_src < 0)
continue;
max77620_regulator_set_fps_src(pmic, reg_pdata->suspend_fps_src,
id);
}
return 0;
}
static int max77620_regulator_resume(struct device *dev)
{
struct max77620_regulator *pmic = dev_get_drvdata(dev);
struct max77620_regulator_pdata *reg_pdata;
int id;
for (id = 0; id < MAX77620_NUM_REGS; id++) {
reg_pdata = &pmic->reg_pdata[id];
max77620_config_power_ok(pmic, id);
max77620_regulator_set_fps_slots(pmic, id, false);
if (reg_pdata->active_fps_src < 0)
continue;
max77620_regulator_set_fps_src(pmic, reg_pdata->active_fps_src,
id);
}
return 0;
}
#endif
static const struct dev_pm_ops max77620_regulator_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(max77620_regulator_suspend,
max77620_regulator_resume)
};
static const struct platform_device_id max77620_regulator_devtype[] = {
{ .name = "max77620-pmic", },
{ .name = "max20024-pmic", },
{ .name = "max77663-pmic", },
{},
};
MODULE_DEVICE_TABLE(platform, max77620_regulator_devtype);
static struct platform_driver max77620_regulator_driver = {
.probe = max77620_regulator_probe,
.id_table = max77620_regulator_devtype,
.driver = {
.name = "max77620-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.pm = &max77620_regulator_pm_ops,
},
};
module_platform_driver(max77620_regulator_driver);
MODULE_DESCRIPTION("MAX77620/MAX20024 regulator driver");
MODULE_AUTHOR("Mallikarjun Kasoju <[email protected]>");
MODULE_AUTHOR("Laxman Dewangan <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/max77620-regulator.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 ROHM Semiconductors
// bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/rohm-bd718x7.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* Typical regulator startup times as per data sheet in uS */
#define BD71847_BUCK1_STARTUP_TIME 144
#define BD71847_BUCK2_STARTUP_TIME 162
#define BD71847_BUCK3_STARTUP_TIME 162
#define BD71847_BUCK4_STARTUP_TIME 240
#define BD71847_BUCK5_STARTUP_TIME 270
#define BD71847_BUCK6_STARTUP_TIME 200
#define BD71847_LDO1_STARTUP_TIME 440
#define BD71847_LDO2_STARTUP_TIME 370
#define BD71847_LDO3_STARTUP_TIME 310
#define BD71847_LDO4_STARTUP_TIME 400
#define BD71847_LDO5_STARTUP_TIME 530
#define BD71847_LDO6_STARTUP_TIME 400
#define BD71837_BUCK1_STARTUP_TIME 160
#define BD71837_BUCK2_STARTUP_TIME 180
#define BD71837_BUCK3_STARTUP_TIME 180
#define BD71837_BUCK4_STARTUP_TIME 180
#define BD71837_BUCK5_STARTUP_TIME 160
#define BD71837_BUCK6_STARTUP_TIME 240
#define BD71837_BUCK7_STARTUP_TIME 220
#define BD71837_BUCK8_STARTUP_TIME 200
#define BD71837_LDO1_STARTUP_TIME 440
#define BD71837_LDO2_STARTUP_TIME 370
#define BD71837_LDO3_STARTUP_TIME 310
#define BD71837_LDO4_STARTUP_TIME 400
#define BD71837_LDO5_STARTUP_TIME 310
#define BD71837_LDO6_STARTUP_TIME 400
#define BD71837_LDO7_STARTUP_TIME 530
/*
* BD718(37/47/50) have two "enable control modes". ON/OFF can either be
* controlled by software - or by PMIC internal HW state machine. Whether
* regulator should be under SW or HW control can be defined from device-tree.
* Let's provide separate ops for regulators to use depending on the "enable
* control mode".
*/
#define BD718XX_HWOPNAME(swopname) swopname##_hwcontrol
#define BD718XX_OPS(name, _list_voltage, _map_voltage, _set_voltage_sel, \
_get_voltage_sel, _set_voltage_time_sel, _set_ramp_delay, \
_set_uvp, _set_ovp) \
static const struct regulator_ops name = { \
.enable = regulator_enable_regmap, \
.disable = regulator_disable_regmap, \
.is_enabled = regulator_is_enabled_regmap, \
.list_voltage = (_list_voltage), \
.map_voltage = (_map_voltage), \
.set_voltage_sel = (_set_voltage_sel), \
.get_voltage_sel = (_get_voltage_sel), \
.set_voltage_time_sel = (_set_voltage_time_sel), \
.set_ramp_delay = (_set_ramp_delay), \
.set_under_voltage_protection = (_set_uvp), \
.set_over_voltage_protection = (_set_ovp), \
}; \
\
static const struct regulator_ops BD718XX_HWOPNAME(name) = { \
.is_enabled = always_enabled_by_hwstate, \
.list_voltage = (_list_voltage), \
.map_voltage = (_map_voltage), \
.set_voltage_sel = (_set_voltage_sel), \
.get_voltage_sel = (_get_voltage_sel), \
.set_voltage_time_sel = (_set_voltage_time_sel), \
.set_ramp_delay = (_set_ramp_delay), \
.set_under_voltage_protection = (_set_uvp), \
.set_over_voltage_protection = (_set_ovp), \
} \
/*
* BUCK1/2/3/4
* BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting
* 00: 10.00mV/usec 10mV 1uS
* 01: 5.00mV/usec 10mV 2uS
* 10: 2.50mV/usec 10mV 4uS
* 11: 1.25mV/usec 10mV 8uS
*/
static const unsigned int bd718xx_ramp_delay[] = { 10000, 5000, 2500, 1250 };
/* These functions are used when regulators are under HW state machine control.
* We assume PMIC is in RUN state because SW running and able to query the
* status. Most of the regulators have fixed ON or OFF state at RUN/IDLE so for
* them we just return a constant. BD71837 BUCK3 and BUCK4 are exceptions as
* they support configuring the ON/OFF state for RUN.
*
* Note for next hacker - these PMICs have a register where the HW state can be
* read. If assuming RUN appears to be false in your use-case - you can
* implement state reading (although that is not going to be atomic) before
* returning the enable state.
*/
static int always_enabled_by_hwstate(struct regulator_dev *rdev)
{
return 1;
}
static int never_enabled_by_hwstate(struct regulator_dev *rdev)
{
return 0;
}
static int bd71837_get_buck34_enable_hwctrl(struct regulator_dev *rdev)
{
int ret;
unsigned int val;
ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
if (ret)
return ret;
return !!(BD718XX_BUCK_RUN_ON & val);
}
static void voltage_change_done(struct regulator_dev *rdev, unsigned int sel,
unsigned int *mask)
{
int ret;
if (*mask) {
/*
* Let's allow scheduling as we use I2C anyways. We just need to
* guarantee minimum of 1ms sleep - it shouldn't matter if we
* exceed it due to the scheduling.
*/
msleep(1);
ret = regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
*mask);
if (ret)
dev_err(&rdev->dev,
"Failed to re-enable voltage monitoring (%d)\n",
ret);
}
}
static int voltage_change_prepare(struct regulator_dev *rdev, unsigned int sel,
unsigned int *mask)
{
int ret;
*mask = 0;
if (rdev->desc->ops->is_enabled(rdev)) {
int now, new;
now = rdev->desc->ops->get_voltage_sel(rdev);
if (now < 0)
return now;
now = rdev->desc->ops->list_voltage(rdev, now);
if (now < 0)
return now;
new = rdev->desc->ops->list_voltage(rdev, sel);
if (new < 0)
return new;
/*
* If we increase LDO voltage when LDO is enabled we need to
* disable the power-good detection until voltage has reached
* the new level. According to HW colleagues the maximum time
* it takes is 1000us. I assume that on systems with light load
* this might be less - and we could probably use DT to give
* system specific delay value if performance matters.
*
* Well, knowing we use I2C here and can add scheduling delays
* I don't think it is worth the hassle and I just add fixed
* 1ms sleep here (and allow scheduling). If this turns out to
* be a problem we can change it to delay and make the delay
* time configurable.
*/
if (new > now) {
int tmp;
int prot_bit;
int ldo_offset = rdev->desc->id - BD718XX_LDO1;
prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset;
ret = regmap_read(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
&tmp);
if (ret) {
dev_err(&rdev->dev,
"Failed to read voltage monitoring state\n");
return ret;
}
if (!(tmp & prot_bit)) {
/* We disable protection if it was enabled... */
ret = regmap_set_bits(rdev->regmap,
BD718XX_REG_MVRFLTMASK2,
prot_bit);
/* ...and we also want to re-enable it */
*mask = prot_bit;
}
if (ret) {
dev_err(&rdev->dev,
"Failed to stop voltage monitoring\n");
return ret;
}
}
}
return 0;
}
static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev,
unsigned int sel)
{
int ret;
int mask;
ret = voltage_change_prepare(rdev, sel, &mask);
if (ret)
return ret;
ret = regulator_set_voltage_sel_regmap(rdev, sel);
voltage_change_done(rdev, sel, &mask);
return ret;
}
static int bd718xx_set_voltage_sel_pickable_restricted(
struct regulator_dev *rdev, unsigned int sel)
{
int ret;
int mask;
ret = voltage_change_prepare(rdev, sel, &mask);
if (ret)
return ret;
ret = regulator_set_voltage_sel_pickable_regmap(rdev, sel);
voltage_change_done(rdev, sel, &mask);
return ret;
}
static int bd71837_set_voltage_sel_pickable_restricted(
struct regulator_dev *rdev, unsigned int sel)
{
if (rdev->desc->ops->is_enabled(rdev))
return -EBUSY;
return regulator_set_voltage_sel_pickable_regmap(rdev, sel);
}
/*
* BD71837 BUCK1/2/3/4
* BD71847 BUCK1/2
* 0.70 to 1.30V (10mV step)
*/
static const struct linear_range bd718xx_dvs_buck_volts[] = {
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000),
REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0),
};
/*
* BD71837 BUCK5
* 0.7V to 1.35V (range 0)
* and
* 0.675 to 1.325 (range 1)
*/
static const struct linear_range bd71837_buck5_volts[] = {
/* Ranges when VOLT_SEL bit is 0 */
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000),
/* Ranges when VOLT_SEL bit is 1 */
REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000),
REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000),
REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000),
};
/*
* Range selector for first 3 linear ranges is 0x0
* and 0x1 for last 3 ranges.
*/
static const unsigned int bd71837_buck5_volt_range_sel[] = {
0x0, 0x0, 0x0, 0x1, 0x1, 0x1
};
/*
* BD71847 BUCK3
*/
static const struct linear_range bd71847_buck3_volts[] = {
/* Ranges when VOLT_SEL bits are 00 */
REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000),
/* Ranges when VOLT_SEL bits are 01 */
REGULATOR_LINEAR_RANGE(550000, 0x0, 0x7, 50000),
/* Ranges when VOLT_SEL bits are 11 */
REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000),
REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000),
REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000),
};
static const unsigned int bd71847_buck3_volt_range_sel[] = {
0x0, 0x0, 0x0, 0x1, 0x2, 0x2, 0x2
};
static const struct linear_range bd71847_buck4_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000),
};
static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x1 };
/*
* BUCK6
* 3.0V to 3.3V (step 100mV)
*/
static const struct linear_range bd71837_buck6_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
};
/*
* BD71837 BUCK7
* BD71847 BUCK5
* 000 = 1.605V
* 001 = 1.695V
* 010 = 1.755V
* 011 = 1.8V (Initial)
* 100 = 1.845V
* 101 = 1.905V
* 110 = 1.95V
* 111 = 1.995V
*/
static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = {
1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000
};
/*
* BUCK8
* 0.8V to 1.40V (step 10mV)
*/
static const struct linear_range bd718xx_4th_nodvs_buck_volts[] = {
REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000),
};
/*
* LDO1
* 3.0 to 3.3V (100mV step)
*/
static const struct linear_range bd718xx_ldo1_volts[] = {
REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000),
REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000),
};
static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x1 };
/*
* LDO2
* 0.8 or 0.9V
*/
static const unsigned int ldo_2_volts[] = {
900000, 800000
};
/*
* LDO3
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd718xx_ldo3_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
/*
* LDO4
* 0.9 to 1.8V (100mV step)
*/
static const struct linear_range bd718xx_ldo4_volts[] = {
REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000),
};
/*
* LDO5 for BD71837
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71837_ldo5_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
/*
* LDO5 for BD71837
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71847_ldo5_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000),
};
static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x1 };
/*
* LDO6
* 0.9 to 1.8V (100mV step)
*/
static const struct linear_range bd718xx_ldo6_volts[] = {
REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000),
};
/*
* LDO7
* 1.8 to 3.3V (100mV step)
*/
static const struct linear_range bd71837_ldo7_volts[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000),
};
struct reg_init {
unsigned int reg;
unsigned int mask;
unsigned int val;
};
struct bd718xx_regulator_data {
struct regulator_desc desc;
const struct rohm_dvs_config dvs;
const struct reg_init init;
const struct reg_init *additional_inits;
int additional_init_amnt;
};
static int bd718x7_xvp_sanity_check(struct regulator_dev *rdev, int lim_uV,
int severity)
{
/*
* BD71837/47/50 ... (ICs supported by this driver) do not provide
* warnings, only protection
*/
if (severity != REGULATOR_SEVERITY_PROT) {
dev_err(&rdev->dev,
"Unsupported Under Voltage protection level\n");
return -EINVAL;
}
/*
* And protection limit is not changeable. It can only be enabled
* or disabled
*/
if (lim_uV)
return -EINVAL;
return 0;
}
static int bd718x7_set_ldo_uvp(struct regulator_dev *rdev, int lim_uV,
int severity, bool enable)
{
int ldo_offset = rdev->desc->id - BD718XX_LDO1;
int prot_bit, ret;
ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
if (ret)
return ret;
prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset;
if (enable)
return regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
prot_bit);
return regmap_set_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
prot_bit);
}
static int bd718x7_get_buck_prot_reg(int id, int *reg)
{
if (id > BD718XX_BUCK8) {
WARN_ON(id > BD718XX_BUCK8);
return -EINVAL;
}
if (id > BD718XX_BUCK4)
*reg = BD718XX_REG_MVRFLTMASK0;
else
*reg = BD718XX_REG_MVRFLTMASK1;
return 0;
}
static int bd718x7_get_buck_ovp_info(int id, int *reg, int *bit)
{
int ret;
ret = bd718x7_get_buck_prot_reg(id, reg);
if (ret)
return ret;
*bit = BIT((id % 4) * 2 + 1);
return 0;
}
static int bd718x7_get_buck_uvp_info(int id, int *reg, int *bit)
{
int ret;
ret = bd718x7_get_buck_prot_reg(id, reg);
if (ret)
return ret;
*bit = BIT((id % 4) * 2);
return 0;
}
static int bd718x7_set_buck_uvp(struct regulator_dev *rdev, int lim_uV,
int severity, bool enable)
{
int bit, reg, ret;
ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
if (ret)
return ret;
ret = bd718x7_get_buck_uvp_info(rdev->desc->id, ®, &bit);
if (ret)
return ret;
if (enable)
return regmap_clear_bits(rdev->regmap, reg, bit);
return regmap_set_bits(rdev->regmap, reg, bit);
}
static int bd718x7_set_buck_ovp(struct regulator_dev *rdev, int lim_uV,
int severity,
bool enable)
{
int bit, reg, ret;
ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
if (ret)
return ret;
ret = bd718x7_get_buck_ovp_info(rdev->desc->id, ®, &bit);
if (ret)
return ret;
if (enable)
return regmap_clear_bits(rdev->regmap, reg, bit);
return regmap_set_bits(rdev->regmap, reg, bit);
}
/*
* OPS common for BD71847 and BD71850
*/
BD718XX_OPS(bd718xx_pickable_range_ldo_ops,
regulator_list_voltage_pickable_linear_range, NULL,
bd718xx_set_voltage_sel_pickable_restricted,
regulator_get_voltage_sel_pickable_regmap, NULL, NULL,
bd718x7_set_ldo_uvp, NULL);
/* BD71847 and BD71850 LDO 5 is by default OFF at RUN state */
static const struct regulator_ops bd718xx_ldo5_ops_hwstate = {
.is_enabled = never_enabled_by_hwstate,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_under_voltage_protection = bd718x7_set_ldo_uvp,
};
BD718XX_OPS(bd718xx_pickable_range_buck_ops,
regulator_list_voltage_pickable_linear_range, NULL,
regulator_set_voltage_sel_pickable_regmap,
regulator_get_voltage_sel_pickable_regmap,
regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp,
bd718x7_set_buck_ovp);
BD718XX_OPS(bd718xx_ldo_regulator_ops, regulator_list_voltage_linear_range,
NULL, bd718xx_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
NULL);
BD718XX_OPS(bd718xx_ldo_regulator_nolinear_ops, regulator_list_voltage_table,
NULL, bd718xx_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
NULL);
BD718XX_OPS(bd718xx_buck_regulator_ops, regulator_list_voltage_linear_range,
NULL, regulator_set_voltage_sel_regmap,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
BD718XX_OPS(bd718xx_buck_regulator_nolinear_ops, regulator_list_voltage_table,
regulator_map_voltage_ascend, regulator_set_voltage_sel_regmap,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
/*
* OPS for BD71837
*/
BD718XX_OPS(bd71837_pickable_range_ldo_ops,
regulator_list_voltage_pickable_linear_range, NULL,
bd71837_set_voltage_sel_pickable_restricted,
regulator_get_voltage_sel_pickable_regmap, NULL, NULL,
bd718x7_set_ldo_uvp, NULL);
BD718XX_OPS(bd71837_pickable_range_buck_ops,
regulator_list_voltage_pickable_linear_range, NULL,
bd71837_set_voltage_sel_pickable_restricted,
regulator_get_voltage_sel_pickable_regmap,
regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp,
bd718x7_set_buck_ovp);
BD718XX_OPS(bd71837_ldo_regulator_ops, regulator_list_voltage_linear_range,
NULL, rohm_regulator_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
NULL);
BD718XX_OPS(bd71837_ldo_regulator_nolinear_ops, regulator_list_voltage_table,
NULL, rohm_regulator_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
NULL);
BD718XX_OPS(bd71837_buck_regulator_ops, regulator_list_voltage_linear_range,
NULL, rohm_regulator_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
BD718XX_OPS(bd71837_buck_regulator_nolinear_ops, regulator_list_voltage_table,
regulator_map_voltage_ascend, rohm_regulator_set_voltage_sel_restricted,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
/*
* BD71837 bucks 3 and 4 support defining their enable/disable state also
* when buck enable state is under HW state machine control. In that case the
* bit [2] in CTRL register is used to indicate if regulator should be ON.
*/
static const struct regulator_ops bd71837_buck34_ops_hwctrl = {
.is_enabled = bd71837_get_buck34_enable_hwctrl,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_under_voltage_protection = bd718x7_set_buck_uvp,
.set_over_voltage_protection = bd718x7_set_buck_ovp,
};
/*
* OPS for all of the ICs - BD718(37/47/50)
*/
BD718XX_OPS(bd718xx_dvs_buck_regulator_ops, regulator_list_voltage_linear_range,
NULL, regulator_set_voltage_sel_regmap,
regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
regulator_set_ramp_delay_regmap, bd718x7_set_buck_uvp,
bd718x7_set_buck_ovp);
/*
* There is a HW quirk in BD71837. The shutdown sequence timings for
* bucks/LDOs which are controlled via register interface are changed.
* At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the
* beginning of shut-down sequence. As bucks 6 and 7 are parent
* supplies for LDO5 and LDO6 - this causes LDO5/6 voltage
* monitoring to errorneously detect under voltage and force PMIC to
* emergency state instead of poweroff. In order to avoid this we
* disable voltage monitoring for LDO5 and LDO6
*/
static const struct reg_init bd71837_ldo5_inits[] = {
{
.reg = BD718XX_REG_MVRFLTMASK2,
.mask = BD718XX_LDO5_VRMON80,
.val = BD718XX_LDO5_VRMON80,
},
};
static const struct reg_init bd71837_ldo6_inits[] = {
{
.reg = BD718XX_REG_MVRFLTMASK2,
.mask = BD718XX_LDO6_VRMON80,
.val = BD718XX_LDO6_VRMON80,
},
};
static int buck_set_hw_dvs_levels(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct bd718xx_regulator_data *data;
data = container_of(desc, struct bd718xx_regulator_data, desc);
return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap);
}
static const struct regulator_ops *bd71847_swcontrol_ops[] = {
&bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops,
&bd718xx_pickable_range_buck_ops, &bd718xx_pickable_range_buck_ops,
&bd718xx_buck_regulator_nolinear_ops, &bd718xx_buck_regulator_ops,
&bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_nolinear_ops,
&bd718xx_ldo_regulator_ops, &bd718xx_ldo_regulator_ops,
&bd718xx_pickable_range_ldo_ops, &bd718xx_ldo_regulator_ops,
};
static const struct regulator_ops *bd71847_hwcontrol_ops[] = {
&BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops),
&BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops),
&BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops),
&BD718XX_HWOPNAME(bd718xx_pickable_range_buck_ops),
&BD718XX_HWOPNAME(bd718xx_buck_regulator_nolinear_ops),
&BD718XX_HWOPNAME(bd718xx_buck_regulator_ops),
&BD718XX_HWOPNAME(bd718xx_pickable_range_ldo_ops),
&BD718XX_HWOPNAME(bd718xx_ldo_regulator_nolinear_ops),
&BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops),
&BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops),
&bd718xx_ldo5_ops_hwstate,
&BD718XX_HWOPNAME(bd718xx_ldo_regulator_ops),
};
static struct bd718xx_regulator_data bd71847_regulators[] = {
{
.desc = {
.name = "buck1",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK1,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK1_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK1_STARTUP_TIME,
.owner = THIS_MODULE,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD718XX_REG_BUCK1_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND,
.run_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
.suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP,
.suspend_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK1_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck2",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK2,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK2_STARTUP_TIME,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD718XX_REG_BUCK2_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE,
.run_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK2_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck3",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK3,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_BUCK3_VOLTAGE_NUM,
.linear_ranges = bd71847_buck3_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71847_buck3_volts),
.vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK,
.vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71847_BUCK3_RANGE_MASK,
.linear_range_selectors_bitfield = bd71847_buck3_volt_range_sel,
.enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK3_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck4",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK4,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_BUCK4_VOLTAGE_NUM,
.linear_ranges = bd71847_buck4_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71847_buck4_volts),
.enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_mask = BD71847_BUCK4_MASK,
.vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71847_BUCK4_RANGE_MASK,
.linear_range_selectors_bitfield = bd71847_buck4_volt_range_sel,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK4_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck5",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK5,
.type = REGULATOR_VOLTAGE,
.volt_table = &bd718xx_3rd_nodvs_buck_volts[0],
.n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK5_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck6",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK6,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_4th_nodvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71847_BUCK6_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "ldo1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO1,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO1_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo1_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts),
.vsel_reg = BD718XX_REG_LDO1_VOLT,
.vsel_mask = BD718XX_LDO1_MASK,
.vsel_range_reg = BD718XX_REG_LDO1_VOLT,
.vsel_range_mask = BD718XX_LDO1_RANGE_MASK,
.linear_range_selectors_bitfield = bd718xx_ldo1_volt_range_sel,
.enable_reg = BD718XX_REG_LDO1_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO1_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO1_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo2",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO2,
.type = REGULATOR_VOLTAGE,
.volt_table = &ldo_2_volts[0],
.vsel_reg = BD718XX_REG_LDO2_VOLT,
.vsel_mask = BD718XX_LDO2_MASK,
.n_voltages = ARRAY_SIZE(ldo_2_volts),
.enable_reg = BD718XX_REG_LDO2_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO2_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO2_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo3",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO3,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO3_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo3_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts),
.vsel_reg = BD718XX_REG_LDO3_VOLT,
.vsel_mask = BD718XX_LDO3_MASK,
.enable_reg = BD718XX_REG_LDO3_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO3_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO3_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo4",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO4,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO4_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo4_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts),
.vsel_reg = BD718XX_REG_LDO4_VOLT,
.vsel_mask = BD718XX_LDO4_MASK,
.enable_reg = BD718XX_REG_LDO4_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO4_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO4_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo5",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO5,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71847_LDO5_VOLTAGE_NUM,
.linear_ranges = bd71847_ldo5_volts,
.n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts),
.vsel_reg = BD718XX_REG_LDO5_VOLT,
.vsel_mask = BD71847_LDO5_MASK,
.vsel_range_reg = BD718XX_REG_LDO5_VOLT,
.vsel_range_mask = BD71847_LDO5_RANGE_MASK,
.linear_range_selectors_bitfield = bd71847_ldo5_volt_range_sel,
.enable_reg = BD718XX_REG_LDO5_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO5_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO5_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo6",
.of_match = of_match_ptr("LDO6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO6,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO6_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo6_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts),
/* LDO6 is supplied by buck5 */
.supply_name = "buck5",
.vsel_reg = BD718XX_REG_LDO6_VOLT,
.vsel_mask = BD718XX_LDO6_MASK,
.enable_reg = BD718XX_REG_LDO6_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71847_LDO6_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO6_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
};
static const struct regulator_ops *bd71837_swcontrol_ops[] = {
&bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops,
&bd718xx_dvs_buck_regulator_ops, &bd718xx_dvs_buck_regulator_ops,
&bd71837_pickable_range_buck_ops, &bd71837_buck_regulator_ops,
&bd71837_buck_regulator_nolinear_ops, &bd71837_buck_regulator_ops,
&bd71837_pickable_range_ldo_ops, &bd71837_ldo_regulator_nolinear_ops,
&bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops,
&bd71837_ldo_regulator_ops, &bd71837_ldo_regulator_ops,
&bd71837_ldo_regulator_ops,
};
static const struct regulator_ops *bd71837_hwcontrol_ops[] = {
&BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops),
&BD718XX_HWOPNAME(bd718xx_dvs_buck_regulator_ops),
&bd71837_buck34_ops_hwctrl, &bd71837_buck34_ops_hwctrl,
&BD718XX_HWOPNAME(bd71837_pickable_range_buck_ops),
&BD718XX_HWOPNAME(bd71837_buck_regulator_ops),
&BD718XX_HWOPNAME(bd71837_buck_regulator_nolinear_ops),
&BD718XX_HWOPNAME(bd71837_buck_regulator_ops),
&BD718XX_HWOPNAME(bd71837_pickable_range_ldo_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_nolinear_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_ops),
&BD718XX_HWOPNAME(bd71837_ldo_regulator_ops),
};
static struct bd718xx_regulator_data bd71837_regulators[] = {
{
.desc = {
.name = "buck1",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK1,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK1_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK1_STARTUP_TIME,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD718XX_REG_BUCK1_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND,
.run_reg = BD718XX_REG_BUCK1_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK1_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
.suspend_reg = BD718XX_REG_BUCK1_VOLT_SUSP,
.suspend_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK1_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck2",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK2,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD718XX_REG_BUCK2_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK2_STARTUP_TIME,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD718XX_REG_BUCK2_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE,
.run_reg = BD718XX_REG_BUCK2_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
.idle_reg = BD718XX_REG_BUCK2_VOLT_IDLE,
.idle_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD718XX_REG_BUCK2_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck3",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK3,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD71837_REG_BUCK3_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD71837_REG_BUCK3_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK3_STARTUP_TIME,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD71837_REG_BUCK3_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN,
.run_reg = BD71837_REG_BUCK3_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD71837_REG_BUCK3_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck4",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK4,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_dvs_buck_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts),
.vsel_reg = BD71837_REG_BUCK4_VOLT_RUN,
.vsel_mask = DVS_BUCK_RUN_MASK,
.enable_reg = BD71837_REG_BUCK4_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK4_STARTUP_TIME,
.ramp_delay_table = bd718xx_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd718xx_ramp_delay),
.ramp_reg = BD71837_REG_BUCK4_CTRL,
.ramp_mask = BUCK_RAMPRATE_MASK,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN,
.run_reg = BD71837_REG_BUCK4_VOLT_RUN,
.run_mask = DVS_BUCK_RUN_MASK,
},
.init = {
.reg = BD71837_REG_BUCK4_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck5",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK5,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_BUCK5_VOLTAGE_NUM,
.linear_ranges = bd71837_buck5_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71837_buck5_volts),
.vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_mask = BD71837_BUCK5_MASK,
.vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT,
.vsel_range_mask = BD71837_BUCK5_RANGE_MASK,
.linear_range_selectors_bitfield = bd71837_buck5_volt_range_sel,
.enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK5_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck6",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK6,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_BUCK6_VOLTAGE_NUM,
.linear_ranges = bd71837_buck6_volts,
.n_linear_ranges =
ARRAY_SIZE(bd71837_buck6_volts),
.vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT,
.vsel_mask = BD71837_BUCK6_MASK,
.enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK6_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck7",
.of_match = of_match_ptr("BUCK7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK7,
.type = REGULATOR_VOLTAGE,
.volt_table = &bd718xx_3rd_nodvs_buck_volts[0],
.n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK7_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "buck8",
.of_match = of_match_ptr("BUCK8"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_BUCK8,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM,
.linear_ranges = bd718xx_4th_nodvs_buck_volts,
.n_linear_ranges =
ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts),
.vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT,
.vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK,
.enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.enable_mask = BD718XX_BUCK_EN,
.enable_time = BD71837_BUCK8_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL,
.mask = BD718XX_BUCK_SEL,
.val = BD718XX_BUCK_SEL,
},
},
{
.desc = {
.name = "ldo1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO1,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO1_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo1_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts),
.vsel_reg = BD718XX_REG_LDO1_VOLT,
.vsel_mask = BD718XX_LDO1_MASK,
.vsel_range_reg = BD718XX_REG_LDO1_VOLT,
.vsel_range_mask = BD718XX_LDO1_RANGE_MASK,
.linear_range_selectors_bitfield = bd718xx_ldo1_volt_range_sel,
.enable_reg = BD718XX_REG_LDO1_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO1_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO1_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo2",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO2,
.type = REGULATOR_VOLTAGE,
.volt_table = &ldo_2_volts[0],
.vsel_reg = BD718XX_REG_LDO2_VOLT,
.vsel_mask = BD718XX_LDO2_MASK,
.n_voltages = ARRAY_SIZE(ldo_2_volts),
.enable_reg = BD718XX_REG_LDO2_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO2_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO2_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo3",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO3,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO3_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo3_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts),
.vsel_reg = BD718XX_REG_LDO3_VOLT,
.vsel_mask = BD718XX_LDO3_MASK,
.enable_reg = BD718XX_REG_LDO3_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO3_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO3_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo4",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO4,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO4_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo4_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts),
.vsel_reg = BD718XX_REG_LDO4_VOLT,
.vsel_mask = BD718XX_LDO4_MASK,
.enable_reg = BD718XX_REG_LDO4_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO4_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO4_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
{
.desc = {
.name = "ldo5",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO5,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_LDO5_VOLTAGE_NUM,
.linear_ranges = bd71837_ldo5_volts,
.n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts),
/* LDO5 is supplied by buck6 */
.supply_name = "buck6",
.vsel_reg = BD718XX_REG_LDO5_VOLT,
.vsel_mask = BD71837_LDO5_MASK,
.enable_reg = BD718XX_REG_LDO5_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO5_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO5_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
.additional_inits = bd71837_ldo5_inits,
.additional_init_amnt = ARRAY_SIZE(bd71837_ldo5_inits),
},
{
.desc = {
.name = "ldo6",
.of_match = of_match_ptr("LDO6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO6,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD718XX_LDO6_VOLTAGE_NUM,
.linear_ranges = bd718xx_ldo6_volts,
.n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts),
/* LDO6 is supplied by buck7 */
.supply_name = "buck7",
.vsel_reg = BD718XX_REG_LDO6_VOLT,
.vsel_mask = BD718XX_LDO6_MASK,
.enable_reg = BD718XX_REG_LDO6_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO6_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD718XX_REG_LDO6_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
.additional_inits = bd71837_ldo6_inits,
.additional_init_amnt = ARRAY_SIZE(bd71837_ldo6_inits),
},
{
.desc = {
.name = "ldo7",
.of_match = of_match_ptr("LDO7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD718XX_LDO7,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD71837_LDO7_VOLTAGE_NUM,
.linear_ranges = bd71837_ldo7_volts,
.n_linear_ranges = ARRAY_SIZE(bd71837_ldo7_volts),
.vsel_reg = BD71837_REG_LDO7_VOLT,
.vsel_mask = BD71837_LDO7_MASK,
.enable_reg = BD71837_REG_LDO7_VOLT,
.enable_mask = BD718XX_LDO_EN,
.enable_time = BD71837_LDO7_STARTUP_TIME,
.owner = THIS_MODULE,
},
.init = {
.reg = BD71837_REG_LDO7_VOLT,
.mask = BD718XX_LDO_SEL,
.val = BD718XX_LDO_SEL,
},
},
};
static void mark_hw_controlled(struct device *dev, struct device_node *np,
struct bd718xx_regulator_data *reg_data,
unsigned int num_reg_data, int *info)
{
int i;
for (i = 1; i <= num_reg_data; i++) {
if (!of_node_name_eq(np, reg_data[i-1].desc.of_match))
continue;
*info |= 1 << (i - 1);
dev_dbg(dev, "regulator %d runlevel controlled\n", i);
return;
}
dev_warn(dev, "Bad regulator node\n");
}
/*
* Setups where regulator (especially the buck8) output voltage is scaled
* by adding external connection where some other regulator output is connected
* to feedback-pin (over suitable resistors) is getting popular amongst users
* of BD71837. (This allows for example scaling down the buck8 voltages to suit
* lover GPU voltages for projects where buck8 is (ab)used to supply power
* for GPU. Additionally some setups do allow DVS for buck8 but as this do
* produce voltage spikes the HW must be evaluated to be able to survive this
* - hence I keep the DVS disabled for non DVS bucks by default. I don't want
* to help you burn your proto board)
*
* So we allow describing this external connection from DT and scale the
* voltages accordingly. This is what the connection should look like:
*
* |------------|
* | buck 8 |-------+----->Vout
* | | |
* |------------| |
* | FB pin |
* | |
* +-------+--R2---+
* |
* R1
* |
* V FB-pull-up
*
* Here the buck output is sifted according to formula:
*
* Vout_o = Vo - (Vpu - Vo)*R2/R1
* Linear_step = step_orig*(R1+R2)/R1
*
* where:
* Vout_o is adjusted voltage output at vsel reg value 0
* Vo is original voltage output at vsel reg value 0
* Vpu is the pull-up voltage V FB-pull-up in the picture
* R1 and R2 are resistor values.
*
* As a real world example for buck8 and a specific GPU:
* VLDO = 1.6V (used as FB-pull-up)
* R1 = 1000ohms
* R2 = 150ohms
* VSEL 0x0 => 0.8V – (VLDO – 0.8) * R2 / R1 = 0.68V
* Linear Step = 10mV * (R1 + R2) / R1 = 11.5mV
*/
static int setup_feedback_loop(struct device *dev, struct device_node *np,
struct bd718xx_regulator_data *reg_data,
unsigned int num_reg_data, int fb_uv)
{
int i, r1, r2, ret;
/*
* We do adjust the values in the global desc based on DT settings.
* This may not be best approach as it can cause problems if more than
* one PMIC is controlled from same processor. I don't see such use-case
* for BD718x7 now - so we spare some bits.
*
* If this will point out to be a problem - then we can allocate new
* bd718xx_regulator_data array at probe and just use the global
* array as a template where we copy initial values. Then we can
* use allocated descs for regultor registration and do IC specific
* modifications to this copy while leaving other PMICs untouched. But
* that means allocating new array for each PMIC - and currently I see
* no need for that.
*/
for (i = 0; i < num_reg_data; i++) {
struct regulator_desc *desc = ®_data[i].desc;
int j;
if (!of_node_name_eq(np, desc->of_match))
continue;
/* The feedback loop connection does not make sense for LDOs */
if (desc->id >= BD718XX_LDO1)
return -EINVAL;
ret = of_property_read_u32(np, "rohm,feedback-pull-up-r1-ohms",
&r1);
if (ret)
return ret;
if (!r1)
return -EINVAL;
ret = of_property_read_u32(np, "rohm,feedback-pull-up-r2-ohms",
&r2);
if (ret)
return ret;
if (desc->n_linear_ranges && desc->linear_ranges) {
struct linear_range *new;
new = devm_kzalloc(dev, desc->n_linear_ranges *
sizeof(struct linear_range),
GFP_KERNEL);
if (!new)
return -ENOMEM;
for (j = 0; j < desc->n_linear_ranges; j++) {
int min = desc->linear_ranges[j].min;
int step = desc->linear_ranges[j].step;
min -= (fb_uv - min)*r2/r1;
step = step * (r1 + r2);
step /= r1;
new[j].min = min;
new[j].step = step;
dev_dbg(dev, "%s: old range min %d, step %d\n",
desc->name, desc->linear_ranges[j].min,
desc->linear_ranges[j].step);
dev_dbg(dev, "new range min %d, step %d\n", min,
step);
}
desc->linear_ranges = new;
}
dev_dbg(dev, "regulator '%s' has FB pull-up configured\n",
desc->name);
return 0;
}
return -ENODEV;
}
static int get_special_regulators(struct device *dev,
struct bd718xx_regulator_data *reg_data,
unsigned int num_reg_data, int *info)
{
int ret;
struct device_node *np;
struct device_node *nproot = dev->of_node;
int uv;
*info = 0;
nproot = of_get_child_by_name(nproot, "regulators");
if (!nproot) {
dev_err(dev, "failed to find regulators node\n");
return -ENODEV;
}
for_each_child_of_node(nproot, np) {
if (of_property_read_bool(np, "rohm,no-regulator-enable-control"))
mark_hw_controlled(dev, np, reg_data, num_reg_data,
info);
ret = of_property_read_u32(np, "rohm,fb-pull-up-microvolt",
&uv);
if (ret) {
if (ret == -EINVAL)
continue;
else
goto err_out;
}
ret = setup_feedback_loop(dev, np, reg_data, num_reg_data, uv);
if (ret)
goto err_out;
}
of_node_put(nproot);
return 0;
err_out:
of_node_put(np);
of_node_put(nproot);
return ret;
}
static int bd718xx_probe(struct platform_device *pdev)
{
struct regmap *regmap;
struct regulator_config config = { 0 };
int i, j, err, omit_enable;
bool use_snvs;
struct bd718xx_regulator_data *reg_data;
unsigned int num_reg_data;
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
const struct regulator_ops **swops, **hwops;
regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!regmap) {
dev_err(&pdev->dev, "No MFD driver data\n");
return -EINVAL;
}
switch (chip) {
case ROHM_CHIP_TYPE_BD71837:
reg_data = bd71837_regulators;
num_reg_data = ARRAY_SIZE(bd71837_regulators);
swops = &bd71837_swcontrol_ops[0];
hwops = &bd71837_hwcontrol_ops[0];
break;
case ROHM_CHIP_TYPE_BD71847:
reg_data = bd71847_regulators;
num_reg_data = ARRAY_SIZE(bd71847_regulators);
swops = &bd71847_swcontrol_ops[0];
hwops = &bd71847_hwcontrol_ops[0];
break;
default:
dev_err(&pdev->dev, "Unsupported chip type\n");
return -EINVAL;
}
/* Register LOCK release */
err = regmap_update_bits(regmap, BD718XX_REG_REGLOCK,
(REGLOCK_PWRSEQ | REGLOCK_VREG), 0);
if (err)
return dev_err_probe(&pdev->dev, err, "Failed to unlock PMIC\n");
dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n",
BD718XX_REG_REGLOCK);
use_snvs = of_property_read_bool(pdev->dev.parent->of_node,
"rohm,reset-snvs-powered");
/*
* Change the next stage from poweroff to be READY instead of SNVS
* for all reset types because OTP loading at READY will clear SEL
* bit allowing HW defaults for power rails to be used
*/
if (!use_snvs) {
err = regmap_update_bits(regmap, BD718XX_REG_TRANS_COND1,
BD718XX_ON_REQ_POWEROFF_MASK |
BD718XX_SWRESET_POWEROFF_MASK |
BD718XX_WDOG_POWEROFF_MASK |
BD718XX_KEY_L_POWEROFF_MASK,
BD718XX_POWOFF_TO_RDY);
if (err)
return dev_err_probe(&pdev->dev, err,
"Failed to change reset target\n");
dev_dbg(&pdev->dev, "Changed all resets from SVNS to READY\n");
}
config.dev = pdev->dev.parent;
config.regmap = regmap;
/*
* There are cases when we want to leave the enable-control for
* the HW state machine and use this driver only for voltage control.
* One special case is when we use PMIC_STBY_REQ line from SoC to PMIC
* in order to set the system to SUSPEND state.
*
* If regulator is taken under SW control the regulator state will not
* be affected by PMIC state machine - Eg. regulator is likely to stay
* on even in SUSPEND
*/
err = get_special_regulators(pdev->dev.parent, reg_data, num_reg_data,
&omit_enable);
if (err)
return err;
for (i = 0; i < num_reg_data; i++) {
struct regulator_desc *desc;
struct regulator_dev *rdev;
struct bd718xx_regulator_data *r;
int no_enable_control = omit_enable & (1 << i);
r = ®_data[i];
desc = &r->desc;
if (no_enable_control)
desc->ops = hwops[i];
else
desc->ops = swops[i];
rdev = devm_regulator_register(&pdev->dev, desc, &config);
if (IS_ERR(rdev))
return dev_err_probe(&pdev->dev, PTR_ERR(rdev),
"failed to register %s regulator\n",
desc->name);
/*
* Regulator register gets the regulator constraints and
* applies them (set_machine_constraints). This should have
* turned the control register(s) to correct values and we
* can now switch the control from PMIC state machine to the
* register interface
*
* At poweroff transition PMIC HW disables EN bit for
* regulators but leaves SEL bit untouched. So if state
* transition from POWEROFF is done to SNVS - then all power
* rails controlled by SW (having SEL bit set) stay disabled
* as EN is cleared. This will result boot failure if any
* crucial systems are powered by these rails. We don't
* enable SW control for crucial regulators if snvs state is
* used
*/
if (!no_enable_control && (!use_snvs ||
!rdev->constraints->always_on ||
!rdev->constraints->boot_on)) {
err = regmap_update_bits(regmap, r->init.reg,
r->init.mask, r->init.val);
if (err)
return dev_err_probe(&pdev->dev, err,
"Failed to take control for (%s)\n",
desc->name);
}
for (j = 0; j < r->additional_init_amnt; j++) {
err = regmap_update_bits(regmap,
r->additional_inits[j].reg,
r->additional_inits[j].mask,
r->additional_inits[j].val);
if (err)
return dev_err_probe(&pdev->dev, err,
"Buck (%s) initialization failed\n",
desc->name);
}
}
return err;
}
static const struct platform_device_id bd718x7_pmic_id[] = {
{ "bd71837-pmic", ROHM_CHIP_TYPE_BD71837 },
{ "bd71847-pmic", ROHM_CHIP_TYPE_BD71847 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd718x7_pmic_id);
static struct platform_driver bd718xx_regulator = {
.driver = {
.name = "bd718xx-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = bd718xx_probe,
.id_table = bd718x7_pmic_id,
};
module_platform_driver(bd718xx_regulator);
MODULE_AUTHOR("Matti Vaittinen <[email protected]>");
MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bd718xx-pmic");
| linux-master | drivers/regulator/bd718x7-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
enum {
DSV_OUT_VLCM = 0,
DSV_OUT_VPOS,
DSV_OUT_VNEG,
DSV_OUT_MAX
};
#define RT4831_REG_DSVEN 0x09
#define RT4831_REG_VLCM 0x0c
#define RT4831_REG_VPOS 0x0d
#define RT4831_REG_VNEG 0x0e
#define RT4831_REG_FLAGS 0x0f
#define RT4831_VOLT_MASK GENMASK(5, 0)
#define RT4831_DSVMODE_SHIFT 5
#define RT4831_DSVMODE_MASK GENMASK(7, 5)
#define RT4831_POSADEN_MASK BIT(4)
#define RT4831_NEGADEN_MASK BIT(3)
#define RT4831_POSEN_MASK BIT(2)
#define RT4831_NEGEN_MASK BIT(1)
#define RT4831_OTP_MASK BIT(6)
#define RT4831_LCMOVP_MASK BIT(5)
#define RT4831_VPOSSCP_MASK BIT(3)
#define RT4831_VNEGSCP_MASK BIT(2)
#define DSV_MODE_NORMAL (0x4 << RT4831_DSVMODE_SHIFT)
#define DSV_MODE_BYPASS (0x6 << RT4831_DSVMODE_SHIFT)
#define STEP_UV 50000
#define VLCM_MIN_UV 4000000
#define VLCM_MAX_UV 7150000
#define VLCM_N_VOLTAGES ((VLCM_MAX_UV - VLCM_MIN_UV) / STEP_UV + 1)
#define VPN_MIN_UV 4000000
#define VPN_MAX_UV 6500000
#define VPN_N_VOLTAGES ((VPN_MAX_UV - VPN_MIN_UV) / STEP_UV + 1)
static int rt4831_get_error_flags(struct regulator_dev *rdev, unsigned int *flags)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int rid = rdev_get_id(rdev);
unsigned int val, events = 0;
int ret;
ret = regmap_read(regmap, RT4831_REG_FLAGS, &val);
if (ret)
return ret;
if (val & RT4831_OTP_MASK)
events |= REGULATOR_ERROR_OVER_TEMP;
if (rid == DSV_OUT_VLCM && (val & RT4831_LCMOVP_MASK))
events |= REGULATOR_ERROR_OVER_CURRENT;
if (rid == DSV_OUT_VPOS && (val & RT4831_VPOSSCP_MASK))
events |= REGULATOR_ERROR_OVER_CURRENT;
if (rid == DSV_OUT_VNEG && (val & RT4831_VNEGSCP_MASK))
events |= REGULATOR_ERROR_OVER_CURRENT;
*flags = events;
return 0;
}
static const struct regulator_ops rt4831_dsvlcm_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
.get_error_flags = rt4831_get_error_flags,
};
static const struct regulator_ops rt4831_dsvpn_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.get_error_flags = rt4831_get_error_flags,
};
static const struct regulator_desc rt4831_regulator_descs[] = {
{
.name = "DSVLCM",
.ops = &rt4831_dsvlcm_ops,
.of_match = of_match_ptr("DSVLCM"),
.regulators_node = of_match_ptr("regulators"),
.type = REGULATOR_VOLTAGE,
.id = DSV_OUT_VLCM,
.n_voltages = VLCM_N_VOLTAGES,
.min_uV = VLCM_MIN_UV,
.uV_step = STEP_UV,
.vsel_reg = RT4831_REG_VLCM,
.vsel_mask = RT4831_VOLT_MASK,
.bypass_reg = RT4831_REG_DSVEN,
.bypass_mask = RT4831_DSVMODE_MASK,
.bypass_val_on = DSV_MODE_BYPASS,
.bypass_val_off = DSV_MODE_NORMAL,
.owner = THIS_MODULE,
},
{
.name = "DSVP",
.ops = &rt4831_dsvpn_ops,
.of_match = of_match_ptr("DSVP"),
.regulators_node = of_match_ptr("regulators"),
.type = REGULATOR_VOLTAGE,
.id = DSV_OUT_VPOS,
.n_voltages = VPN_N_VOLTAGES,
.min_uV = VPN_MIN_UV,
.uV_step = STEP_UV,
.vsel_reg = RT4831_REG_VPOS,
.vsel_mask = RT4831_VOLT_MASK,
.enable_reg = RT4831_REG_DSVEN,
.enable_mask = RT4831_POSEN_MASK,
.active_discharge_reg = RT4831_REG_DSVEN,
.active_discharge_mask = RT4831_POSADEN_MASK,
.active_discharge_on = RT4831_POSADEN_MASK,
.owner = THIS_MODULE,
},
{
.name = "DSVN",
.ops = &rt4831_dsvpn_ops,
.of_match = of_match_ptr("DSVN"),
.regulators_node = of_match_ptr("regulators"),
.type = REGULATOR_VOLTAGE,
.id = DSV_OUT_VNEG,
.n_voltages = VPN_N_VOLTAGES,
.min_uV = VPN_MIN_UV,
.uV_step = STEP_UV,
.vsel_reg = RT4831_REG_VNEG,
.vsel_mask = RT4831_VOLT_MASK,
.enable_reg = RT4831_REG_DSVEN,
.enable_mask = RT4831_NEGEN_MASK,
.active_discharge_reg = RT4831_REG_DSVEN,
.active_discharge_mask = RT4831_NEGADEN_MASK,
.active_discharge_on = RT4831_NEGADEN_MASK,
.owner = THIS_MODULE,
}
};
static int rt4831_regulator_probe(struct platform_device *pdev)
{
struct regmap *regmap;
struct regulator_dev *rdev;
struct regulator_config config = {};
int i, ret;
regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!regmap) {
dev_err(&pdev->dev, "Failed to init regmap\n");
return -ENODEV;
}
/* Configure DSV mode to normal by default */
ret = regmap_update_bits(regmap, RT4831_REG_DSVEN, RT4831_DSVMODE_MASK, DSV_MODE_NORMAL);
if (ret) {
dev_err(&pdev->dev, "Failed to configure dsv mode to normal\n");
return ret;
}
config.dev = pdev->dev.parent;
config.regmap = regmap;
for (i = 0; i < DSV_OUT_MAX; i++) {
rdev = devm_regulator_register(&pdev->dev, rt4831_regulator_descs + i, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "Failed to register %d regulator\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id rt4831_regulator_match[] = {
{ "rt4831-regulator", 0 },
{}
};
MODULE_DEVICE_TABLE(platform, rt4831_regulator_match);
static struct platform_driver rt4831_regulator_driver = {
.driver = {
.name = "rt4831-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.id_table = rt4831_regulator_match,
.probe = rt4831_regulator_probe,
};
module_platform_driver(rt4831_regulator_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rt4831-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for voltage controller regulators
*
* Copyright (C) 2017 Google, Inc.
*/
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/coupler.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/sort.h>
#include "internal.h"
struct vctrl_voltage_range {
int min_uV;
int max_uV;
};
struct vctrl_voltage_ranges {
struct vctrl_voltage_range ctrl;
struct vctrl_voltage_range out;
};
struct vctrl_voltage_table {
int ctrl;
int out;
int ovp_min_sel;
};
struct vctrl_data {
struct regulator_dev *rdev;
struct regulator_desc desc;
bool enabled;
unsigned int min_slew_down_rate;
unsigned int ovp_threshold;
struct vctrl_voltage_ranges vrange;
struct vctrl_voltage_table *vtable;
unsigned int sel;
};
static int vctrl_calc_ctrl_voltage(struct vctrl_data *vctrl, int out_uV)
{
struct vctrl_voltage_range *ctrl = &vctrl->vrange.ctrl;
struct vctrl_voltage_range *out = &vctrl->vrange.out;
return ctrl->min_uV +
DIV_ROUND_CLOSEST_ULL((s64)(out_uV - out->min_uV) *
(ctrl->max_uV - ctrl->min_uV),
out->max_uV - out->min_uV);
}
static int vctrl_calc_output_voltage(struct vctrl_data *vctrl, int ctrl_uV)
{
struct vctrl_voltage_range *ctrl = &vctrl->vrange.ctrl;
struct vctrl_voltage_range *out = &vctrl->vrange.out;
if (ctrl_uV < 0) {
pr_err("vctrl: failed to get control voltage\n");
return ctrl_uV;
}
if (ctrl_uV < ctrl->min_uV)
return out->min_uV;
if (ctrl_uV > ctrl->max_uV)
return out->max_uV;
return out->min_uV +
DIV_ROUND_CLOSEST_ULL((s64)(ctrl_uV - ctrl->min_uV) *
(out->max_uV - out->min_uV),
ctrl->max_uV - ctrl->min_uV);
}
static int vctrl_get_voltage(struct regulator_dev *rdev)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
int ctrl_uV;
if (!rdev->supply)
return -EPROBE_DEFER;
ctrl_uV = regulator_get_voltage_rdev(rdev->supply->rdev);
return vctrl_calc_output_voltage(vctrl, ctrl_uV);
}
static int vctrl_set_voltage(struct regulator_dev *rdev,
int req_min_uV, int req_max_uV,
unsigned int *selector)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
int orig_ctrl_uV;
int uV;
int ret;
if (!rdev->supply)
return -EPROBE_DEFER;
orig_ctrl_uV = regulator_get_voltage_rdev(rdev->supply->rdev);
uV = vctrl_calc_output_voltage(vctrl, orig_ctrl_uV);
if (req_min_uV >= uV || !vctrl->ovp_threshold)
/* voltage rising or no OVP */
return regulator_set_voltage_rdev(rdev->supply->rdev,
vctrl_calc_ctrl_voltage(vctrl, req_min_uV),
vctrl_calc_ctrl_voltage(vctrl, req_max_uV),
PM_SUSPEND_ON);
while (uV > req_min_uV) {
int max_drop_uV = (uV * vctrl->ovp_threshold) / 100;
int next_uV;
int next_ctrl_uV;
int delay;
/* Make sure no infinite loop even in crazy cases */
if (max_drop_uV == 0)
max_drop_uV = 1;
next_uV = max_t(int, req_min_uV, uV - max_drop_uV);
next_ctrl_uV = vctrl_calc_ctrl_voltage(vctrl, next_uV);
ret = regulator_set_voltage_rdev(rdev->supply->rdev,
next_ctrl_uV,
next_ctrl_uV,
PM_SUSPEND_ON);
if (ret)
goto err;
delay = DIV_ROUND_UP(uV - next_uV, vctrl->min_slew_down_rate);
usleep_range(delay, delay + DIV_ROUND_UP(delay, 10));
uV = next_uV;
}
return 0;
err:
/* Try to go back to original voltage */
regulator_set_voltage_rdev(rdev->supply->rdev, orig_ctrl_uV, orig_ctrl_uV,
PM_SUSPEND_ON);
return ret;
}
static int vctrl_get_voltage_sel(struct regulator_dev *rdev)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
return vctrl->sel;
}
static int vctrl_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
unsigned int orig_sel = vctrl->sel;
int ret;
if (!rdev->supply)
return -EPROBE_DEFER;
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector >= vctrl->sel || !vctrl->ovp_threshold) {
/* voltage rising or no OVP */
ret = regulator_set_voltage_rdev(rdev->supply->rdev,
vctrl->vtable[selector].ctrl,
vctrl->vtable[selector].ctrl,
PM_SUSPEND_ON);
if (!ret)
vctrl->sel = selector;
return ret;
}
while (vctrl->sel != selector) {
unsigned int next_sel;
int delay;
next_sel = max_t(unsigned int, selector, vctrl->vtable[vctrl->sel].ovp_min_sel);
ret = regulator_set_voltage_rdev(rdev->supply->rdev,
vctrl->vtable[next_sel].ctrl,
vctrl->vtable[next_sel].ctrl,
PM_SUSPEND_ON);
if (ret) {
dev_err(&rdev->dev,
"failed to set control voltage to %duV\n",
vctrl->vtable[next_sel].ctrl);
goto err;
}
vctrl->sel = next_sel;
delay = DIV_ROUND_UP(vctrl->vtable[vctrl->sel].out -
vctrl->vtable[next_sel].out,
vctrl->min_slew_down_rate);
usleep_range(delay, delay + DIV_ROUND_UP(delay, 10));
}
return 0;
err:
if (vctrl->sel != orig_sel) {
/* Try to go back to original voltage */
if (!regulator_set_voltage_rdev(rdev->supply->rdev,
vctrl->vtable[orig_sel].ctrl,
vctrl->vtable[orig_sel].ctrl,
PM_SUSPEND_ON))
vctrl->sel = orig_sel;
else
dev_warn(&rdev->dev,
"failed to restore original voltage\n");
}
return ret;
}
static int vctrl_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
return vctrl->vtable[selector].out;
}
static int vctrl_parse_dt(struct platform_device *pdev,
struct vctrl_data *vctrl)
{
int ret;
struct device_node *np = pdev->dev.of_node;
u32 pval;
u32 vrange_ctrl[2];
ret = of_property_read_u32(np, "ovp-threshold-percent", &pval);
if (!ret) {
vctrl->ovp_threshold = pval;
if (vctrl->ovp_threshold > 100) {
dev_err(&pdev->dev,
"ovp-threshold-percent (%u) > 100\n",
vctrl->ovp_threshold);
return -EINVAL;
}
}
ret = of_property_read_u32(np, "min-slew-down-rate", &pval);
if (!ret) {
vctrl->min_slew_down_rate = pval;
/* We use the value as int and as divider; sanity check */
if (vctrl->min_slew_down_rate == 0) {
dev_err(&pdev->dev,
"min-slew-down-rate must not be 0\n");
return -EINVAL;
} else if (vctrl->min_slew_down_rate > INT_MAX) {
dev_err(&pdev->dev, "min-slew-down-rate (%u) too big\n",
vctrl->min_slew_down_rate);
return -EINVAL;
}
}
if (vctrl->ovp_threshold && !vctrl->min_slew_down_rate) {
dev_err(&pdev->dev,
"ovp-threshold-percent requires min-slew-down-rate\n");
return -EINVAL;
}
ret = of_property_read_u32(np, "regulator-min-microvolt", &pval);
if (ret) {
dev_err(&pdev->dev,
"failed to read regulator-min-microvolt: %d\n", ret);
return ret;
}
vctrl->vrange.out.min_uV = pval;
ret = of_property_read_u32(np, "regulator-max-microvolt", &pval);
if (ret) {
dev_err(&pdev->dev,
"failed to read regulator-max-microvolt: %d\n", ret);
return ret;
}
vctrl->vrange.out.max_uV = pval;
ret = of_property_read_u32_array(np, "ctrl-voltage-range", vrange_ctrl,
2);
if (ret) {
dev_err(&pdev->dev, "failed to read ctrl-voltage-range: %d\n",
ret);
return ret;
}
if (vrange_ctrl[0] >= vrange_ctrl[1]) {
dev_err(&pdev->dev, "ctrl-voltage-range is invalid: %d-%d\n",
vrange_ctrl[0], vrange_ctrl[1]);
return -EINVAL;
}
vctrl->vrange.ctrl.min_uV = vrange_ctrl[0];
vctrl->vrange.ctrl.max_uV = vrange_ctrl[1];
return 0;
}
static int vctrl_cmp_ctrl_uV(const void *a, const void *b)
{
const struct vctrl_voltage_table *at = a;
const struct vctrl_voltage_table *bt = b;
return at->ctrl - bt->ctrl;
}
static int vctrl_init_vtable(struct platform_device *pdev,
struct regulator *ctrl_reg)
{
struct vctrl_data *vctrl = platform_get_drvdata(pdev);
struct regulator_desc *rdesc = &vctrl->desc;
struct vctrl_voltage_range *vrange_ctrl = &vctrl->vrange.ctrl;
int n_voltages;
int ctrl_uV;
int i, idx_vt;
n_voltages = regulator_count_voltages(ctrl_reg);
rdesc->n_voltages = n_voltages;
/* determine number of steps within the range of the vctrl regulator */
for (i = 0; i < n_voltages; i++) {
ctrl_uV = regulator_list_voltage(ctrl_reg, i);
if (ctrl_uV < vrange_ctrl->min_uV ||
ctrl_uV > vrange_ctrl->max_uV)
rdesc->n_voltages--;
}
if (rdesc->n_voltages == 0) {
dev_err(&pdev->dev, "invalid configuration\n");
return -EINVAL;
}
vctrl->vtable = devm_kcalloc(&pdev->dev, rdesc->n_voltages,
sizeof(struct vctrl_voltage_table),
GFP_KERNEL);
if (!vctrl->vtable)
return -ENOMEM;
/* create mapping control <=> output voltage */
for (i = 0, idx_vt = 0; i < n_voltages; i++) {
ctrl_uV = regulator_list_voltage(ctrl_reg, i);
if (ctrl_uV < vrange_ctrl->min_uV ||
ctrl_uV > vrange_ctrl->max_uV)
continue;
vctrl->vtable[idx_vt].ctrl = ctrl_uV;
vctrl->vtable[idx_vt].out =
vctrl_calc_output_voltage(vctrl, ctrl_uV);
idx_vt++;
}
/* we rely on the table to be ordered by ascending voltage */
sort(vctrl->vtable, rdesc->n_voltages,
sizeof(struct vctrl_voltage_table), vctrl_cmp_ctrl_uV,
NULL);
/* pre-calculate OVP-safe downward transitions */
for (i = rdesc->n_voltages - 1; i > 0; i--) {
int j;
int ovp_min_uV = (vctrl->vtable[i].out *
(100 - vctrl->ovp_threshold)) / 100;
for (j = 0; j < i; j++) {
if (vctrl->vtable[j].out >= ovp_min_uV) {
vctrl->vtable[i].ovp_min_sel = j;
break;
}
}
if (j == i) {
dev_warn(&pdev->dev, "switching down from %duV may cause OVP shutdown\n",
vctrl->vtable[i].out);
/* use next lowest voltage */
vctrl->vtable[i].ovp_min_sel = i - 1;
}
}
return 0;
}
static int vctrl_enable(struct regulator_dev *rdev)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
vctrl->enabled = true;
return 0;
}
static int vctrl_disable(struct regulator_dev *rdev)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
vctrl->enabled = false;
return 0;
}
static int vctrl_is_enabled(struct regulator_dev *rdev)
{
struct vctrl_data *vctrl = rdev_get_drvdata(rdev);
return vctrl->enabled;
}
static const struct regulator_ops vctrl_ops_cont = {
.enable = vctrl_enable,
.disable = vctrl_disable,
.is_enabled = vctrl_is_enabled,
.get_voltage = vctrl_get_voltage,
.set_voltage = vctrl_set_voltage,
};
static const struct regulator_ops vctrl_ops_non_cont = {
.enable = vctrl_enable,
.disable = vctrl_disable,
.is_enabled = vctrl_is_enabled,
.set_voltage_sel = vctrl_set_voltage_sel,
.get_voltage_sel = vctrl_get_voltage_sel,
.list_voltage = vctrl_list_voltage,
.map_voltage = regulator_map_voltage_iterate,
};
static int vctrl_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct vctrl_data *vctrl;
const struct regulator_init_data *init_data;
struct regulator_desc *rdesc;
struct regulator_config cfg = { };
struct vctrl_voltage_range *vrange_ctrl;
struct regulator *ctrl_reg;
int ctrl_uV;
int ret;
vctrl = devm_kzalloc(&pdev->dev, sizeof(struct vctrl_data),
GFP_KERNEL);
if (!vctrl)
return -ENOMEM;
platform_set_drvdata(pdev, vctrl);
ret = vctrl_parse_dt(pdev, vctrl);
if (ret)
return ret;
ctrl_reg = devm_regulator_get(&pdev->dev, "ctrl");
if (IS_ERR(ctrl_reg))
return PTR_ERR(ctrl_reg);
vrange_ctrl = &vctrl->vrange.ctrl;
rdesc = &vctrl->desc;
rdesc->name = "vctrl";
rdesc->type = REGULATOR_VOLTAGE;
rdesc->owner = THIS_MODULE;
rdesc->supply_name = "ctrl";
if ((regulator_get_linear_step(ctrl_reg) == 1) ||
(regulator_count_voltages(ctrl_reg) == -EINVAL)) {
rdesc->continuous_voltage_range = true;
rdesc->ops = &vctrl_ops_cont;
} else {
rdesc->ops = &vctrl_ops_non_cont;
}
init_data = of_get_regulator_init_data(&pdev->dev, np, rdesc);
if (!init_data)
return -ENOMEM;
cfg.of_node = np;
cfg.dev = &pdev->dev;
cfg.driver_data = vctrl;
cfg.init_data = init_data;
if (!rdesc->continuous_voltage_range) {
ret = vctrl_init_vtable(pdev, ctrl_reg);
if (ret)
return ret;
/* Use locked consumer API when not in regulator framework */
ctrl_uV = regulator_get_voltage(ctrl_reg);
if (ctrl_uV < 0) {
dev_err(&pdev->dev, "failed to get control voltage\n");
return ctrl_uV;
}
/* determine current voltage selector from control voltage */
if (ctrl_uV < vrange_ctrl->min_uV) {
vctrl->sel = 0;
} else if (ctrl_uV > vrange_ctrl->max_uV) {
vctrl->sel = rdesc->n_voltages - 1;
} else {
int i;
for (i = 0; i < rdesc->n_voltages; i++) {
if (ctrl_uV == vctrl->vtable[i].ctrl) {
vctrl->sel = i;
break;
}
}
}
}
/* Drop ctrl-supply here in favor of regulator core managed supply */
devm_regulator_put(ctrl_reg);
vctrl->rdev = devm_regulator_register(&pdev->dev, rdesc, &cfg);
if (IS_ERR(vctrl->rdev)) {
ret = PTR_ERR(vctrl->rdev);
dev_err(&pdev->dev, "failed to register regulator: %d\n", ret);
return ret;
}
return 0;
}
static const struct of_device_id vctrl_of_match[] = {
{ .compatible = "vctrl-regulator", },
{},
};
MODULE_DEVICE_TABLE(of, vctrl_of_match);
static struct platform_driver vctrl_driver = {
.probe = vctrl_probe,
.driver = {
.name = "vctrl-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(vctrl_of_match),
},
};
module_platform_driver(vctrl_driver);
MODULE_DESCRIPTION("Voltage Controlled Regulator Driver");
MODULE_AUTHOR("Matthias Kaehlcke <[email protected]>");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/vctrl-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// wm8994-regulator.c -- Regulator driver for the WM8994
//
// Copyright 2009 Wolfson Microelectronics PLC.
//
// Author: Mark Brown <[email protected]>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/mfd/wm8994/core.h>
#include <linux/mfd/wm8994/registers.h>
#include <linux/mfd/wm8994/pdata.h>
struct wm8994_ldo {
struct regulator_dev *regulator;
struct wm8994 *wm8994;
struct regulator_consumer_supply supply;
struct regulator_init_data init_data;
};
#define WM8994_LDO1_MAX_SELECTOR 0x7
#define WM8994_LDO2_MAX_SELECTOR 0x3
static const struct regulator_ops wm8994_ldo1_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
if (selector > WM8994_LDO2_MAX_SELECTOR)
return -EINVAL;
switch (ldo->wm8994->type) {
case WM8994:
return (selector * 100000) + 900000;
case WM8958:
return (selector * 100000) + 1000000;
case WM1811:
switch (selector) {
case 0:
return -EINVAL;
default:
return (selector * 100000) + 950000;
}
break;
default:
return -EINVAL;
}
}
static const struct regulator_ops wm8994_ldo2_ops = {
.list_voltage = wm8994_ldo2_list_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_desc wm8994_ldo_desc[] = {
{
.name = "LDO1",
.id = 1,
.type = REGULATOR_VOLTAGE,
.n_voltages = WM8994_LDO1_MAX_SELECTOR + 1,
.vsel_reg = WM8994_LDO_1,
.vsel_mask = WM8994_LDO1_VSEL_MASK,
.ops = &wm8994_ldo1_ops,
.min_uV = 2400000,
.uV_step = 100000,
.enable_time = 3000,
.off_on_delay = 36000,
.owner = THIS_MODULE,
},
{
.name = "LDO2",
.id = 2,
.type = REGULATOR_VOLTAGE,
.n_voltages = WM8994_LDO2_MAX_SELECTOR + 1,
.vsel_reg = WM8994_LDO_2,
.vsel_mask = WM8994_LDO2_VSEL_MASK,
.ops = &wm8994_ldo2_ops,
.enable_time = 3000,
.off_on_delay = 36000,
.owner = THIS_MODULE,
},
};
static const struct regulator_desc wm8958_ldo_desc[] = {
{
.name = "LDO1",
.id = 1,
.type = REGULATOR_VOLTAGE,
.n_voltages = WM8994_LDO1_MAX_SELECTOR + 1,
.vsel_reg = WM8994_LDO_1,
.vsel_mask = WM8994_LDO1_VSEL_MASK,
.ops = &wm8994_ldo1_ops,
.min_uV = 2400000,
.uV_step = 100000,
.enable_time = 3000,
.owner = THIS_MODULE,
},
{
.name = "LDO2",
.id = 2,
.type = REGULATOR_VOLTAGE,
.n_voltages = WM8994_LDO2_MAX_SELECTOR + 1,
.vsel_reg = WM8994_LDO_2,
.vsel_mask = WM8994_LDO2_VSEL_MASK,
.ops = &wm8994_ldo2_ops,
.enable_time = 3000,
.owner = THIS_MODULE,
},
};
static const struct regulator_consumer_supply wm8994_ldo_consumer[] = {
{ .supply = "AVDD1" },
{ .supply = "DCVDD" },
};
static const struct regulator_init_data wm8994_ldo_default[] = {
{
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
},
{
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = 1,
},
};
static int wm8994_ldo_probe(struct platform_device *pdev)
{
struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
struct wm8994_pdata *pdata = dev_get_platdata(wm8994->dev);
int id = pdev->id % ARRAY_SIZE(pdata->ldo);
struct regulator_config config = { };
struct wm8994_ldo *ldo;
struct gpio_desc *gpiod;
int ret;
dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm8994_ldo), GFP_KERNEL);
if (!ldo)
return -ENOMEM;
ldo->wm8994 = wm8994;
ldo->supply = wm8994_ldo_consumer[id];
ldo->supply.dev_name = dev_name(wm8994->dev);
config.dev = wm8994->dev;
config.driver_data = ldo;
config.regmap = wm8994->regmap;
config.init_data = &ldo->init_data;
/*
* Look up LDO enable GPIO from the parent device node, we don't
* use devm because the regulator core will free the GPIO
*/
gpiod = gpiod_get_optional(pdev->dev.parent,
id ? "wlf,ldo2ena" : "wlf,ldo1ena",
GPIOD_OUT_LOW |
GPIOD_FLAGS_BIT_NONEXCLUSIVE);
if (IS_ERR(gpiod))
return PTR_ERR(gpiod);
config.ena_gpiod = gpiod;
/* Use default constraints if none set up */
if (!pdata || !pdata->ldo[id].init_data || wm8994->dev->of_node) {
dev_dbg(wm8994->dev, "Using default init data, supply %s %s\n",
ldo->supply.dev_name, ldo->supply.supply);
ldo->init_data = wm8994_ldo_default[id];
ldo->init_data.consumer_supplies = &ldo->supply;
if (!gpiod)
ldo->init_data.constraints.valid_ops_mask = 0;
} else {
ldo->init_data = *pdata->ldo[id].init_data;
}
/*
* At this point the GPIO descriptor is handled over to the
* regulator core and we need not worry about it on the
* error path.
*/
if (ldo->wm8994->type == WM8994) {
ldo->regulator = devm_regulator_register(&pdev->dev,
&wm8994_ldo_desc[id],
&config);
} else {
ldo->regulator = devm_regulator_register(&pdev->dev,
&wm8958_ldo_desc[id],
&config);
}
if (IS_ERR(ldo->regulator)) {
ret = PTR_ERR(ldo->regulator);
dev_err(wm8994->dev, "Failed to register LDO%d: %d\n",
id + 1, ret);
return ret;
}
platform_set_drvdata(pdev, ldo);
return 0;
}
static struct platform_driver wm8994_ldo_driver = {
.probe = wm8994_ldo_probe,
.driver = {
.name = "wm8994-ldo",
.probe_type = PROBE_FORCE_SYNCHRONOUS,
},
};
module_platform_driver(wm8994_ldo_driver);
/* Module information */
MODULE_AUTHOR("Mark Brown <[email protected]>");
MODULE_DESCRIPTION("WM8994 LDO driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm8994-ldo");
| linux-master | drivers/regulator/wm8994-regulator.c |
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2017 Spreadtrum Communications Inc.
*/
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
/*
* SC2731 regulator lock register
*/
#define SC2731_PWR_WR_PROT 0xf0c
#define SC2731_WR_UNLOCK_VALUE 0x6e7f
/*
* SC2731 enable register
*/
#define SC2731_POWER_PD_SW 0xc28
#define SC2731_LDO_CAMA0_PD 0xcfc
#define SC2731_LDO_CAMA1_PD 0xd04
#define SC2731_LDO_CAMMOT_PD 0xd0c
#define SC2731_LDO_VLDO_PD 0xd6c
#define SC2731_LDO_EMMCCORE_PD 0xd2c
#define SC2731_LDO_SDCORE_PD 0xd74
#define SC2731_LDO_SDIO_PD 0xd70
#define SC2731_LDO_WIFIPA_PD 0xd4c
#define SC2731_LDO_USB33_PD 0xd5c
#define SC2731_LDO_CAMD0_PD 0xd7c
#define SC2731_LDO_CAMD1_PD 0xd84
#define SC2731_LDO_CON_PD 0xd8c
#define SC2731_LDO_CAMIO_PD 0xd94
#define SC2731_LDO_SRAM_PD 0xd78
/*
* SC2731 enable mask
*/
#define SC2731_DCDC_CPU0_PD_MASK BIT(4)
#define SC2731_DCDC_CPU1_PD_MASK BIT(3)
#define SC2731_DCDC_RF_PD_MASK BIT(11)
#define SC2731_LDO_CAMA0_PD_MASK BIT(0)
#define SC2731_LDO_CAMA1_PD_MASK BIT(0)
#define SC2731_LDO_CAMMOT_PD_MASK BIT(0)
#define SC2731_LDO_VLDO_PD_MASK BIT(0)
#define SC2731_LDO_EMMCCORE_PD_MASK BIT(0)
#define SC2731_LDO_SDCORE_PD_MASK BIT(0)
#define SC2731_LDO_SDIO_PD_MASK BIT(0)
#define SC2731_LDO_WIFIPA_PD_MASK BIT(0)
#define SC2731_LDO_USB33_PD_MASK BIT(0)
#define SC2731_LDO_CAMD0_PD_MASK BIT(0)
#define SC2731_LDO_CAMD1_PD_MASK BIT(0)
#define SC2731_LDO_CON_PD_MASK BIT(0)
#define SC2731_LDO_CAMIO_PD_MASK BIT(0)
#define SC2731_LDO_SRAM_PD_MASK BIT(0)
/*
* SC2731 vsel register
*/
#define SC2731_DCDC_CPU0_VOL 0xc54
#define SC2731_DCDC_CPU1_VOL 0xc64
#define SC2731_DCDC_RF_VOL 0xcb8
#define SC2731_LDO_CAMA0_VOL 0xd00
#define SC2731_LDO_CAMA1_VOL 0xd08
#define SC2731_LDO_CAMMOT_VOL 0xd10
#define SC2731_LDO_VLDO_VOL 0xd28
#define SC2731_LDO_EMMCCORE_VOL 0xd30
#define SC2731_LDO_SDCORE_VOL 0xd38
#define SC2731_LDO_SDIO_VOL 0xd40
#define SC2731_LDO_WIFIPA_VOL 0xd50
#define SC2731_LDO_USB33_VOL 0xd60
#define SC2731_LDO_CAMD0_VOL 0xd80
#define SC2731_LDO_CAMD1_VOL 0xd88
#define SC2731_LDO_CON_VOL 0xd90
#define SC2731_LDO_CAMIO_VOL 0xd98
#define SC2731_LDO_SRAM_VOL 0xdB0
/*
* SC2731 vsel register mask
*/
#define SC2731_DCDC_CPU0_VOL_MASK GENMASK(8, 0)
#define SC2731_DCDC_CPU1_VOL_MASK GENMASK(8, 0)
#define SC2731_DCDC_RF_VOL_MASK GENMASK(8, 0)
#define SC2731_LDO_CAMA0_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_CAMA1_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_CAMMOT_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_VLDO_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_EMMCCORE_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_SDCORE_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_SDIO_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_WIFIPA_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_USB33_VOL_MASK GENMASK(7, 0)
#define SC2731_LDO_CAMD0_VOL_MASK GENMASK(6, 0)
#define SC2731_LDO_CAMD1_VOL_MASK GENMASK(6, 0)
#define SC2731_LDO_CON_VOL_MASK GENMASK(6, 0)
#define SC2731_LDO_CAMIO_VOL_MASK GENMASK(6, 0)
#define SC2731_LDO_SRAM_VOL_MASK GENMASK(6, 0)
enum sc2731_regulator_id {
SC2731_BUCK_CPU0,
SC2731_BUCK_CPU1,
SC2731_BUCK_RF,
SC2731_LDO_CAMA0,
SC2731_LDO_CAMA1,
SC2731_LDO_CAMMOT,
SC2731_LDO_VLDO,
SC2731_LDO_EMMCCORE,
SC2731_LDO_SDCORE,
SC2731_LDO_SDIO,
SC2731_LDO_WIFIPA,
SC2731_LDO_USB33,
SC2731_LDO_CAMD0,
SC2731_LDO_CAMD1,
SC2731_LDO_CON,
SC2731_LDO_CAMIO,
SC2731_LDO_SRAM,
};
static const struct regulator_ops sc2731_regu_linear_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
#define SC2731_REGU_LINEAR(_id, en_reg, en_mask, vreg, vmask, \
vstep, vmin, vmax) { \
.name = #_id, \
.of_match = of_match_ptr(#_id), \
.ops = &sc2731_regu_linear_ops, \
.type = REGULATOR_VOLTAGE, \
.id = SC2731_##_id, \
.owner = THIS_MODULE, \
.min_uV = vmin, \
.n_voltages = ((vmax) - (vmin)) / (vstep) + 1, \
.uV_step = vstep, \
.enable_is_inverted = true, \
.enable_val = 0, \
.enable_reg = en_reg, \
.enable_mask = en_mask, \
.vsel_reg = vreg, \
.vsel_mask = vmask, \
}
static const struct regulator_desc regulators[] = {
SC2731_REGU_LINEAR(BUCK_CPU0, SC2731_POWER_PD_SW,
SC2731_DCDC_CPU0_PD_MASK, SC2731_DCDC_CPU0_VOL,
SC2731_DCDC_CPU0_VOL_MASK, 3125, 400000, 1996875),
SC2731_REGU_LINEAR(BUCK_CPU1, SC2731_POWER_PD_SW,
SC2731_DCDC_CPU1_PD_MASK, SC2731_DCDC_CPU1_VOL,
SC2731_DCDC_CPU1_VOL_MASK, 3125, 400000, 1996875),
SC2731_REGU_LINEAR(BUCK_RF, SC2731_POWER_PD_SW, SC2731_DCDC_RF_PD_MASK,
SC2731_DCDC_RF_VOL, SC2731_DCDC_RF_VOL_MASK,
3125, 600000, 2196875),
SC2731_REGU_LINEAR(LDO_CAMA0, SC2731_LDO_CAMA0_PD,
SC2731_LDO_CAMA0_PD_MASK, SC2731_LDO_CAMA0_VOL,
SC2731_LDO_CAMA0_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_CAMA1, SC2731_LDO_CAMA1_PD,
SC2731_LDO_CAMA1_PD_MASK, SC2731_LDO_CAMA1_VOL,
SC2731_LDO_CAMA1_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_CAMMOT, SC2731_LDO_CAMMOT_PD,
SC2731_LDO_CAMMOT_PD_MASK, SC2731_LDO_CAMMOT_VOL,
SC2731_LDO_CAMMOT_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_VLDO, SC2731_LDO_VLDO_PD,
SC2731_LDO_VLDO_PD_MASK, SC2731_LDO_VLDO_VOL,
SC2731_LDO_VLDO_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_EMMCCORE, SC2731_LDO_EMMCCORE_PD,
SC2731_LDO_EMMCCORE_PD_MASK, SC2731_LDO_EMMCCORE_VOL,
SC2731_LDO_EMMCCORE_VOL_MASK, 10000, 1200000,
3750000),
SC2731_REGU_LINEAR(LDO_SDCORE, SC2731_LDO_SDCORE_PD,
SC2731_LDO_SDCORE_PD_MASK, SC2731_LDO_SDCORE_VOL,
SC2731_LDO_SDCORE_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_SDIO, SC2731_LDO_SDIO_PD,
SC2731_LDO_SDIO_PD_MASK, SC2731_LDO_SDIO_VOL,
SC2731_LDO_SDIO_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_WIFIPA, SC2731_LDO_WIFIPA_PD,
SC2731_LDO_WIFIPA_PD_MASK, SC2731_LDO_WIFIPA_VOL,
SC2731_LDO_WIFIPA_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_USB33, SC2731_LDO_USB33_PD,
SC2731_LDO_USB33_PD_MASK, SC2731_LDO_USB33_VOL,
SC2731_LDO_USB33_VOL_MASK, 10000, 1200000, 3750000),
SC2731_REGU_LINEAR(LDO_CAMD0, SC2731_LDO_CAMD0_PD,
SC2731_LDO_CAMD0_PD_MASK, SC2731_LDO_CAMD0_VOL,
SC2731_LDO_CAMD0_VOL_MASK, 6250, 1000000, 1793750),
SC2731_REGU_LINEAR(LDO_CAMD1, SC2731_LDO_CAMD1_PD,
SC2731_LDO_CAMD1_PD_MASK, SC2731_LDO_CAMD1_VOL,
SC2731_LDO_CAMD1_VOL_MASK, 6250, 1000000, 1793750),
SC2731_REGU_LINEAR(LDO_CON, SC2731_LDO_CON_PD,
SC2731_LDO_CON_PD_MASK, SC2731_LDO_CON_VOL,
SC2731_LDO_CON_VOL_MASK, 6250, 1000000, 1793750),
SC2731_REGU_LINEAR(LDO_CAMIO, SC2731_LDO_CAMIO_PD,
SC2731_LDO_CAMIO_PD_MASK, SC2731_LDO_CAMIO_VOL,
SC2731_LDO_CAMIO_VOL_MASK, 6250, 1000000, 1793750),
SC2731_REGU_LINEAR(LDO_SRAM, SC2731_LDO_SRAM_PD,
SC2731_LDO_SRAM_PD_MASK, SC2731_LDO_SRAM_VOL,
SC2731_LDO_SRAM_VOL_MASK, 6250, 1000000, 1793750),
};
static int sc2731_regulator_unlock(struct regmap *regmap)
{
return regmap_write(regmap, SC2731_PWR_WR_PROT,
SC2731_WR_UNLOCK_VALUE);
}
static int sc2731_regulator_probe(struct platform_device *pdev)
{
int i, ret;
struct regmap *regmap;
struct regulator_config config = { };
struct regulator_dev *rdev;
regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!regmap) {
dev_err(&pdev->dev, "failed to get regmap.\n");
return -ENODEV;
}
ret = sc2731_regulator_unlock(regmap);
if (ret) {
dev_err(&pdev->dev, "failed to release regulator lock\n");
return ret;
}
config.dev = &pdev->dev;
config.regmap = regmap;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
regulators[i].name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver sc2731_regulator_driver = {
.driver = {
.name = "sc27xx-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = sc2731_regulator_probe,
};
module_platform_driver(sc2731_regulator_driver);
MODULE_AUTHOR("Chen Junhui <[email protected]>");
MODULE_DESCRIPTION("Spreadtrum SC2731 regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/sc2731-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
//
// max77826-regulator.c - regulator driver for Maxim MAX77826
//
// Author: Iskren Chernev <[email protected]>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
enum max77826_registers {
MAX77826_REG_INT_SRC = 0x00,
MAX77826_REG_SYS_INT,
MAX77826_REG_INT1,
MAX77826_REG_INT2,
MAX77826_REG_BB_INT,
MAX77826_REG_INT_SRC_M,
MAX77826_REG_TOPSYS_INT_M,
MAX77826_REG_INT1_M,
MAX77826_REG_INT2_M,
MAX77826_REG_BB_INT_M,
MAX77826_REG_TOPSYS_STAT,
MAX77826_REG_STAT1,
MAX77826_REG_STAT2,
MAX77826_REG_BB_STAT,
/* 0x0E - 0x0F: Reserved */
MAX77826_REG_LDO_OPMD1 = 0x10,
MAX77826_REG_LDO_OPMD2,
MAX77826_REG_LDO_OPMD3,
MAX77826_REG_LDO_OPMD4,
MAX77826_REG_B_BB_OPMD,
/* 0x15 - 0x1F: Reserved */
MAX77826_REG_LDO1_CFG = 0x20,
MAX77826_REG_LDO2_CFG,
MAX77826_REG_LDO3_CFG,
MAX77826_REG_LDO4_CFG,
MAX77826_REG_LDO5_CFG,
MAX77826_REG_LDO6_CFG,
MAX77826_REG_LDO7_CFG,
MAX77826_REG_LDO8_CFG,
MAX77826_REG_LDO9_CFG,
MAX77826_REG_LDO10_CFG,
MAX77826_REG_LDO11_CFG,
MAX77826_REG_LDO12_CFG,
MAX77826_REG_LDO13_CFG,
MAX77826_REG_LDO14_CFG,
MAX77826_REG_LDO15_CFG,
/* 0x2F: Reserved */
MAX77826_REG_BUCK_CFG = 0x30,
MAX77826_REG_BUCK_VOUT,
MAX77826_REG_BB_CFG,
MAX77826_REG_BB_VOUT,
/* 0x34 - 0x3F: Reserved */
MAX77826_REG_BUCK_SS_FREQ = 0x40,
MAX77826_REG_UVLO_FALL,
/* 0x42 - 0xCE: Reserved */
MAX77826_REG_DEVICE_ID = 0xCF,
};
enum max77826_regulators {
MAX77826_LDO1 = 0,
MAX77826_LDO2,
MAX77826_LDO3,
MAX77826_LDO4,
MAX77826_LDO5,
MAX77826_LDO6,
MAX77826_LDO7,
MAX77826_LDO8,
MAX77826_LDO9,
MAX77826_LDO10,
MAX77826_LDO11,
MAX77826_LDO12,
MAX77826_LDO13,
MAX77826_LDO14,
MAX77826_LDO15,
MAX77826_BUCK,
MAX77826_BUCKBOOST,
MAX77826_MAX_REGULATORS,
};
#define MAX77826_MASK_LDO 0x7f
#define MAX77826_MASK_BUCK 0xff
#define MAX77826_MASK_BUCKBOOST 0x7f
#define MAX77826_BUCK_RAMP_DELAY 12500
/* values in mV */
/* for LDO1-3 */
#define MAX77826_NMOS_LDO_VOLT_MIN 600000
#define MAX77826_NMOS_LDO_VOLT_MAX 2187500
#define MAX77826_NMOS_LDO_VOLT_STEP 12500
/* for LDO4-15 */
#define MAX77826_PMOS_LDO_VOLT_MIN 800000
#define MAX77826_PMOS_LDO_VOLT_MAX 3975000
#define MAX77826_PMOS_LDO_VOLT_STEP 25000
/* for BUCK */
#define MAX77826_BUCK_VOLT_MIN 500000
#define MAX77826_BUCK_VOLT_MAX 1800000
#define MAX77826_BUCK_VOLT_STEP 6250
/* for BUCKBOOST */
#define MAX77826_BUCKBOOST_VOLT_MIN 2600000
#define MAX77826_BUCKBOOST_VOLT_MAX 4187500
#define MAX77826_BUCKBOOST_VOLT_STEP 12500
#define MAX77826_VOLT_RANGE(_type) \
((MAX77826_ ## _type ## _VOLT_MAX - \
MAX77826_ ## _type ## _VOLT_MIN) / \
MAX77826_ ## _type ## _VOLT_STEP + 1)
#define MAX77826_LDO(_id, _type) \
[MAX77826_LDO ## _id] = { \
.id = MAX77826_LDO ## _id, \
.name = "LDO"#_id, \
.of_match = of_match_ptr("LDO"#_id), \
.regulators_node = "regulators", \
.ops = &max77826_most_ops, \
.min_uV = MAX77826_ ## _type ## _LDO_VOLT_MIN, \
.uV_step = MAX77826_ ## _type ## _LDO_VOLT_STEP, \
.n_voltages = MAX77826_VOLT_RANGE(_type ## _LDO), \
.enable_reg = MAX77826_REG_LDO_OPMD1 + (_id - 1) / 4, \
.enable_mask = BIT(((_id - 1) % 4) * 2 + 1), \
.vsel_reg = MAX77826_REG_LDO1_CFG + (_id - 1), \
.vsel_mask = MAX77826_MASK_LDO, \
.owner = THIS_MODULE, \
}
#define MAX77826_BUCK(_idx, _id, _ops) \
[MAX77826_ ## _id] = { \
.id = MAX77826_ ## _id, \
.name = #_id, \
.of_match = of_match_ptr(#_id), \
.regulators_node = "regulators", \
.ops = &_ops, \
.min_uV = MAX77826_ ## _id ## _VOLT_MIN, \
.uV_step = MAX77826_ ## _id ## _VOLT_STEP, \
.n_voltages = MAX77826_VOLT_RANGE(_id), \
.enable_reg = MAX77826_REG_B_BB_OPMD, \
.enable_mask = BIT(_idx * 2 + 1), \
.vsel_reg = MAX77826_REG_BUCK_VOUT + _idx * 2, \
.vsel_mask = MAX77826_MASK_ ## _id, \
.owner = THIS_MODULE, \
}
struct max77826_regulator_info {
struct regmap *regmap;
struct regulator_desc *rdesc;
};
static const struct regmap_config max77826_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MAX77826_REG_DEVICE_ID,
};
static int max77826_set_voltage_time_sel(struct regulator_dev *,
unsigned int old_selector,
unsigned int new_selector);
static const struct regulator_ops max77826_most_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_ops max77826_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = max77826_set_voltage_time_sel,
};
static struct regulator_desc max77826_regulators_desc[] = {
MAX77826_LDO(1, NMOS),
MAX77826_LDO(2, NMOS),
MAX77826_LDO(3, NMOS),
MAX77826_LDO(4, PMOS),
MAX77826_LDO(5, PMOS),
MAX77826_LDO(6, PMOS),
MAX77826_LDO(7, PMOS),
MAX77826_LDO(8, PMOS),
MAX77826_LDO(9, PMOS),
MAX77826_LDO(10, PMOS),
MAX77826_LDO(11, PMOS),
MAX77826_LDO(12, PMOS),
MAX77826_LDO(13, PMOS),
MAX77826_LDO(14, PMOS),
MAX77826_LDO(15, PMOS),
MAX77826_BUCK(0, BUCK, max77826_buck_ops),
MAX77826_BUCK(1, BUCKBOOST, max77826_most_ops),
};
static int max77826_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
if (new_selector > old_selector) {
return DIV_ROUND_UP(MAX77826_BUCK_VOLT_STEP *
(new_selector - old_selector),
MAX77826_BUCK_RAMP_DELAY);
}
return 0;
}
static int max77826_read_device_id(struct regmap *regmap, struct device *dev)
{
unsigned int device_id;
int res;
res = regmap_read(regmap, MAX77826_REG_DEVICE_ID, &device_id);
if (!res)
dev_dbg(dev, "DEVICE_ID: 0x%x\n", device_id);
return res;
}
static int max77826_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct max77826_regulator_info *info;
struct regulator_config config = {};
struct regulator_dev *rdev;
struct regmap *regmap;
int i;
info = devm_kzalloc(dev, sizeof(struct max77826_regulator_info),
GFP_KERNEL);
if (!info)
return -ENOMEM;
info->rdesc = max77826_regulators_desc;
regmap = devm_regmap_init_i2c(client, &max77826_regmap_config);
if (IS_ERR(regmap)) {
dev_err(dev, "Failed to allocate regmap!\n");
return PTR_ERR(regmap);
}
info->regmap = regmap;
i2c_set_clientdata(client, info);
config.dev = dev;
config.regmap = regmap;
config.driver_data = info;
for (i = 0; i < MAX77826_MAX_REGULATORS; i++) {
rdev = devm_regulator_register(dev,
&max77826_regulators_desc[i],
&config);
if (IS_ERR(rdev)) {
dev_err(dev, "Failed to register regulator!\n");
return PTR_ERR(rdev);
}
}
return max77826_read_device_id(regmap, dev);
}
static const struct of_device_id __maybe_unused max77826_of_match[] = {
{ .compatible = "maxim,max77826" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, max77826_of_match);
static const struct i2c_device_id max77826_id[] = {
{ "max77826-regulator" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, max77826_id);
static struct i2c_driver max77826_regulator_driver = {
.driver = {
.name = "max77826",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(max77826_of_match),
},
.probe = max77826_i2c_probe,
.id_table = max77826_id,
};
module_i2c_driver(max77826_regulator_driver);
MODULE_AUTHOR("Iskren Chernev <[email protected]>");
MODULE_DESCRIPTION("MAX77826 PMIC regulator driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max77826-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for Ricoh RN5T618 PMIC
*
* Copyright (C) 2014 Beniamino Galvani <[email protected]>
*/
#include <linux/mfd/rn5t618.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
static const struct regulator_ops rn5t618_reg_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
#define REG(rid, ereg, emask, vreg, vmask, min, max, step) \
{ \
.name = #rid, \
.of_match = of_match_ptr(#rid), \
.regulators_node = of_match_ptr("regulators"), \
.id = RN5T618_##rid, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.ops = &rn5t618_reg_ops, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.uV_step = (step), \
.enable_reg = RN5T618_##ereg, \
.enable_mask = (emask), \
.vsel_reg = RN5T618_##vreg, \
.vsel_mask = (vmask), \
}
static const struct regulator_desc rn5t567_regulators[] = {
/* DCDC */
REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),
/* LDO */
REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
/* LDO RTC */
REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1200000, 3500000, 25000),
REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
};
static const struct regulator_desc rn5t618_regulators[] = {
/* DCDC */
REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
/* LDO */
REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
/* LDO RTC */
REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
};
static const struct regulator_desc rc5t619_regulators[] = {
/* DCDC */
REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),
REG(DCDC5, DC5CTL, BIT(0), DC5DAC, 0xff, 600000, 3500000, 12500),
/* LDO */
REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 600000, 3500000, 25000),
REG(LDO6, LDOEN1, BIT(5), LDO6DAC, 0x7f, 600000, 3500000, 25000),
REG(LDO7, LDOEN1, BIT(6), LDO7DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO8, LDOEN1, BIT(7), LDO8DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO9, LDOEN2, BIT(0), LDO9DAC, 0x7f, 900000, 3500000, 25000),
REG(LDO10, LDOEN2, BIT(1), LDO10DAC, 0x7f, 900000, 3500000, 25000),
/* LDO RTC */
REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
};
static int rn5t618_regulator_probe(struct platform_device *pdev)
{
struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
struct regulator_dev *rdev;
const struct regulator_desc *regulators;
int i;
int num_regulators = 0;
switch (rn5t618->variant) {
case RN5T567:
regulators = rn5t567_regulators;
num_regulators = ARRAY_SIZE(rn5t567_regulators);
break;
case RN5T618:
regulators = rn5t618_regulators;
num_regulators = ARRAY_SIZE(rn5t618_regulators);
break;
case RC5T619:
regulators = rc5t619_regulators;
num_regulators = ARRAY_SIZE(rc5t619_regulators);
break;
default:
return -EINVAL;
}
config.dev = pdev->dev.parent;
config.regmap = rn5t618->regmap;
for (i = 0; i < num_regulators; i++) {
rdev = devm_regulator_register(&pdev->dev,
®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s regulator\n",
regulators[i].name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver rn5t618_regulator_driver = {
.probe = rn5t618_regulator_probe,
.driver = {
.name = "rn5t618-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
module_platform_driver(rn5t618_regulator_driver);
MODULE_ALIAS("platform:rn5t618-regulator");
MODULE_AUTHOR("Beniamino Galvani <[email protected]>");
MODULE_DESCRIPTION("RN5T618 regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rn5t618-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Broadcom BCM590xx regulator driver
*
* Copyright 2014 Linaro Limited
* Author: Matt Porter <[email protected]>
*/
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mfd/bcm590xx.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* I2C slave 0 registers */
#define BCM590XX_RFLDOPMCTRL1 0x60
#define BCM590XX_IOSR1PMCTRL1 0x7a
#define BCM590XX_IOSR2PMCTRL1 0x7c
#define BCM590XX_CSRPMCTRL1 0x7e
#define BCM590XX_SDSR1PMCTRL1 0x82
#define BCM590XX_SDSR2PMCTRL1 0x86
#define BCM590XX_MSRPMCTRL1 0x8a
#define BCM590XX_VSRPMCTRL1 0x8e
#define BCM590XX_RFLDOCTRL 0x96
#define BCM590XX_CSRVOUT1 0xc0
/* I2C slave 1 registers */
#define BCM590XX_GPLDO5PMCTRL1 0x16
#define BCM590XX_GPLDO6PMCTRL1 0x18
#define BCM590XX_GPLDO1CTRL 0x1a
#define BCM590XX_GPLDO2CTRL 0x1b
#define BCM590XX_GPLDO3CTRL 0x1c
#define BCM590XX_GPLDO4CTRL 0x1d
#define BCM590XX_GPLDO5CTRL 0x1e
#define BCM590XX_GPLDO6CTRL 0x1f
#define BCM590XX_OTG_CTRL 0x40
#define BCM590XX_GPLDO1PMCTRL1 0x57
#define BCM590XX_GPLDO2PMCTRL1 0x59
#define BCM590XX_GPLDO3PMCTRL1 0x5b
#define BCM590XX_GPLDO4PMCTRL1 0x5d
#define BCM590XX_REG_ENABLE BIT(7)
#define BCM590XX_VBUS_ENABLE BIT(2)
#define BCM590XX_LDO_VSEL_MASK GENMASK(5, 3)
#define BCM590XX_SR_VSEL_MASK GENMASK(5, 0)
/*
* RFLDO to VSR regulators are
* accessed via I2C slave 0
*/
/* LDO regulator IDs */
#define BCM590XX_REG_RFLDO 0
#define BCM590XX_REG_CAMLDO1 1
#define BCM590XX_REG_CAMLDO2 2
#define BCM590XX_REG_SIMLDO1 3
#define BCM590XX_REG_SIMLDO2 4
#define BCM590XX_REG_SDLDO 5
#define BCM590XX_REG_SDXLDO 6
#define BCM590XX_REG_MMCLDO1 7
#define BCM590XX_REG_MMCLDO2 8
#define BCM590XX_REG_AUDLDO 9
#define BCM590XX_REG_MICLDO 10
#define BCM590XX_REG_USBLDO 11
#define BCM590XX_REG_VIBLDO 12
/* DCDC regulator IDs */
#define BCM590XX_REG_CSR 13
#define BCM590XX_REG_IOSR1 14
#define BCM590XX_REG_IOSR2 15
#define BCM590XX_REG_MSR 16
#define BCM590XX_REG_SDSR1 17
#define BCM590XX_REG_SDSR2 18
#define BCM590XX_REG_VSR 19
/*
* GPLDO1 to VBUS regulators are
* accessed via I2C slave 1
*/
#define BCM590XX_REG_GPLDO1 20
#define BCM590XX_REG_GPLDO2 21
#define BCM590XX_REG_GPLDO3 22
#define BCM590XX_REG_GPLDO4 23
#define BCM590XX_REG_GPLDO5 24
#define BCM590XX_REG_GPLDO6 25
#define BCM590XX_REG_VBUS 26
#define BCM590XX_NUM_REGS 27
#define BCM590XX_REG_IS_LDO(n) (n < BCM590XX_REG_CSR)
#define BCM590XX_REG_IS_GPLDO(n) \
((n > BCM590XX_REG_VSR) && (n < BCM590XX_REG_VBUS))
#define BCM590XX_REG_IS_VBUS(n) (n == BCM590XX_REG_VBUS)
/* LDO group A: supported voltages in microvolts */
static const unsigned int ldo_a_table[] = {
1200000, 1800000, 2500000, 2700000, 2800000,
2900000, 3000000, 3300000,
};
/* LDO group C: supported voltages in microvolts */
static const unsigned int ldo_c_table[] = {
3100000, 1800000, 2500000, 2700000, 2800000,
2900000, 3000000, 3300000,
};
static const unsigned int ldo_vbus[] = {
5000000,
};
/* DCDC group CSR: supported voltages in microvolts */
static const struct linear_range dcdc_csr_ranges[] = {
REGULATOR_LINEAR_RANGE(860000, 2, 50, 10000),
REGULATOR_LINEAR_RANGE(1360000, 51, 55, 20000),
REGULATOR_LINEAR_RANGE(900000, 56, 63, 0),
};
/* DCDC group IOSR1: supported voltages in microvolts */
static const struct linear_range dcdc_iosr1_ranges[] = {
REGULATOR_LINEAR_RANGE(860000, 2, 51, 10000),
REGULATOR_LINEAR_RANGE(1500000, 52, 52, 0),
REGULATOR_LINEAR_RANGE(1800000, 53, 53, 0),
REGULATOR_LINEAR_RANGE(900000, 54, 63, 0),
};
/* DCDC group SDSR1: supported voltages in microvolts */
static const struct linear_range dcdc_sdsr1_ranges[] = {
REGULATOR_LINEAR_RANGE(860000, 2, 50, 10000),
REGULATOR_LINEAR_RANGE(1340000, 51, 51, 0),
REGULATOR_LINEAR_RANGE(900000, 52, 63, 0),
};
struct bcm590xx_info {
const char *name;
const char *vin_name;
u8 n_voltages;
const unsigned int *volt_table;
u8 n_linear_ranges;
const struct linear_range *linear_ranges;
};
#define BCM590XX_REG_TABLE(_name, _table) \
{ \
.name = #_name, \
.n_voltages = ARRAY_SIZE(_table), \
.volt_table = _table, \
}
#define BCM590XX_REG_RANGES(_name, _ranges) \
{ \
.name = #_name, \
.n_voltages = 64, \
.n_linear_ranges = ARRAY_SIZE(_ranges), \
.linear_ranges = _ranges, \
}
static struct bcm590xx_info bcm590xx_regs[] = {
BCM590XX_REG_TABLE(rfldo, ldo_a_table),
BCM590XX_REG_TABLE(camldo1, ldo_c_table),
BCM590XX_REG_TABLE(camldo2, ldo_c_table),
BCM590XX_REG_TABLE(simldo1, ldo_a_table),
BCM590XX_REG_TABLE(simldo2, ldo_a_table),
BCM590XX_REG_TABLE(sdldo, ldo_c_table),
BCM590XX_REG_TABLE(sdxldo, ldo_a_table),
BCM590XX_REG_TABLE(mmcldo1, ldo_a_table),
BCM590XX_REG_TABLE(mmcldo2, ldo_a_table),
BCM590XX_REG_TABLE(audldo, ldo_a_table),
BCM590XX_REG_TABLE(micldo, ldo_a_table),
BCM590XX_REG_TABLE(usbldo, ldo_a_table),
BCM590XX_REG_TABLE(vibldo, ldo_c_table),
BCM590XX_REG_RANGES(csr, dcdc_csr_ranges),
BCM590XX_REG_RANGES(iosr1, dcdc_iosr1_ranges),
BCM590XX_REG_RANGES(iosr2, dcdc_iosr1_ranges),
BCM590XX_REG_RANGES(msr, dcdc_iosr1_ranges),
BCM590XX_REG_RANGES(sdsr1, dcdc_sdsr1_ranges),
BCM590XX_REG_RANGES(sdsr2, dcdc_iosr1_ranges),
BCM590XX_REG_RANGES(vsr, dcdc_iosr1_ranges),
BCM590XX_REG_TABLE(gpldo1, ldo_a_table),
BCM590XX_REG_TABLE(gpldo2, ldo_a_table),
BCM590XX_REG_TABLE(gpldo3, ldo_a_table),
BCM590XX_REG_TABLE(gpldo4, ldo_a_table),
BCM590XX_REG_TABLE(gpldo5, ldo_a_table),
BCM590XX_REG_TABLE(gpldo6, ldo_a_table),
BCM590XX_REG_TABLE(vbus, ldo_vbus),
};
struct bcm590xx_reg {
struct regulator_desc *desc;
struct bcm590xx *mfd;
};
static int bcm590xx_get_vsel_register(int id)
{
if (BCM590XX_REG_IS_LDO(id))
return BCM590XX_RFLDOCTRL + id;
else if (BCM590XX_REG_IS_GPLDO(id))
return BCM590XX_GPLDO1CTRL + id;
else
return BCM590XX_CSRVOUT1 + (id - BCM590XX_REG_CSR) * 3;
}
static int bcm590xx_get_enable_register(int id)
{
int reg = 0;
if (BCM590XX_REG_IS_LDO(id))
reg = BCM590XX_RFLDOPMCTRL1 + id * 2;
else if (BCM590XX_REG_IS_GPLDO(id))
reg = BCM590XX_GPLDO1PMCTRL1 + id * 2;
else
switch (id) {
case BCM590XX_REG_CSR:
reg = BCM590XX_CSRPMCTRL1;
break;
case BCM590XX_REG_IOSR1:
reg = BCM590XX_IOSR1PMCTRL1;
break;
case BCM590XX_REG_IOSR2:
reg = BCM590XX_IOSR2PMCTRL1;
break;
case BCM590XX_REG_MSR:
reg = BCM590XX_MSRPMCTRL1;
break;
case BCM590XX_REG_SDSR1:
reg = BCM590XX_SDSR1PMCTRL1;
break;
case BCM590XX_REG_SDSR2:
reg = BCM590XX_SDSR2PMCTRL1;
break;
case BCM590XX_REG_VSR:
reg = BCM590XX_VSRPMCTRL1;
break;
case BCM590XX_REG_VBUS:
reg = BCM590XX_OTG_CTRL;
break;
}
return reg;
}
static const struct regulator_ops bcm590xx_ops_ldo = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
};
static const struct regulator_ops bcm590xx_ops_dcdc = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static const struct regulator_ops bcm590xx_ops_vbus = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static int bcm590xx_probe(struct platform_device *pdev)
{
struct bcm590xx *bcm590xx = dev_get_drvdata(pdev->dev.parent);
struct bcm590xx_reg *pmu;
struct regulator_config config = { };
struct bcm590xx_info *info;
struct regulator_dev *rdev;
int i;
pmu = devm_kzalloc(&pdev->dev, sizeof(*pmu), GFP_KERNEL);
if (!pmu)
return -ENOMEM;
pmu->mfd = bcm590xx;
platform_set_drvdata(pdev, pmu);
pmu->desc = devm_kcalloc(&pdev->dev,
BCM590XX_NUM_REGS,
sizeof(struct regulator_desc),
GFP_KERNEL);
if (!pmu->desc)
return -ENOMEM;
info = bcm590xx_regs;
for (i = 0; i < BCM590XX_NUM_REGS; i++, info++) {
/* Register the regulators */
pmu->desc[i].name = info->name;
pmu->desc[i].of_match = of_match_ptr(info->name);
pmu->desc[i].regulators_node = of_match_ptr("regulators");
pmu->desc[i].supply_name = info->vin_name;
pmu->desc[i].id = i;
pmu->desc[i].volt_table = info->volt_table;
pmu->desc[i].n_voltages = info->n_voltages;
pmu->desc[i].linear_ranges = info->linear_ranges;
pmu->desc[i].n_linear_ranges = info->n_linear_ranges;
if ((BCM590XX_REG_IS_LDO(i)) || (BCM590XX_REG_IS_GPLDO(i))) {
pmu->desc[i].ops = &bcm590xx_ops_ldo;
pmu->desc[i].vsel_mask = BCM590XX_LDO_VSEL_MASK;
} else if (BCM590XX_REG_IS_VBUS(i))
pmu->desc[i].ops = &bcm590xx_ops_vbus;
else {
pmu->desc[i].ops = &bcm590xx_ops_dcdc;
pmu->desc[i].vsel_mask = BCM590XX_SR_VSEL_MASK;
}
if (BCM590XX_REG_IS_VBUS(i))
pmu->desc[i].enable_mask = BCM590XX_VBUS_ENABLE;
else {
pmu->desc[i].vsel_reg = bcm590xx_get_vsel_register(i);
pmu->desc[i].enable_is_inverted = true;
pmu->desc[i].enable_mask = BCM590XX_REG_ENABLE;
}
pmu->desc[i].enable_reg = bcm590xx_get_enable_register(i);
pmu->desc[i].type = REGULATOR_VOLTAGE;
pmu->desc[i].owner = THIS_MODULE;
config.dev = bcm590xx->dev;
config.driver_data = pmu;
if (BCM590XX_REG_IS_GPLDO(i) || BCM590XX_REG_IS_VBUS(i))
config.regmap = bcm590xx->regmap_sec;
else
config.regmap = bcm590xx->regmap_pri;
rdev = devm_regulator_register(&pdev->dev, &pmu->desc[i],
&config);
if (IS_ERR(rdev)) {
dev_err(bcm590xx->dev,
"failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver bcm590xx_regulator_driver = {
.driver = {
.name = "bcm590xx-vregs",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = bcm590xx_probe,
};
module_platform_driver(bcm590xx_regulator_driver);
MODULE_AUTHOR("Matt Porter <[email protected]>");
MODULE_DESCRIPTION("BCM590xx voltage regulator driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bcm590xx-vregs");
| linux-master | drivers/regulator/bcm590xx-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// wm831x-dcdc.c -- DC-DC buck converter driver for the WM831x series
//
// Copyright 2009 Wolfson Microelectronics PLC.
//
// Author: Mark Brown <[email protected]>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/regulator.h>
#include <linux/mfd/wm831x/pdata.h>
#define WM831X_BUCKV_MAX_SELECTOR 0x68
#define WM831X_BUCKP_MAX_SELECTOR 0x66
#define WM831X_DCDC_MODE_FAST 0
#define WM831X_DCDC_MODE_NORMAL 1
#define WM831X_DCDC_MODE_IDLE 2
#define WM831X_DCDC_MODE_STANDBY 3
#define WM831X_DCDC_MAX_NAME 9
/* Register offsets in control block */
#define WM831X_DCDC_CONTROL_1 0
#define WM831X_DCDC_CONTROL_2 1
#define WM831X_DCDC_ON_CONFIG 2
#define WM831X_DCDC_SLEEP_CONTROL 3
#define WM831X_DCDC_DVS_CONTROL 4
/*
* Shared
*/
struct wm831x_dcdc {
char name[WM831X_DCDC_MAX_NAME];
char supply_name[WM831X_DCDC_MAX_NAME];
struct regulator_desc desc;
int base;
struct wm831x *wm831x;
struct regulator_dev *regulator;
struct gpio_desc *dvs_gpiod;
int dvs_gpio_state;
int on_vsel;
int dvs_vsel;
};
static unsigned int wm831x_dcdc_get_mode(struct regulator_dev *rdev)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
int val;
val = wm831x_reg_read(wm831x, reg);
if (val < 0)
return val;
val = (val & WM831X_DC1_ON_MODE_MASK) >> WM831X_DC1_ON_MODE_SHIFT;
switch (val) {
case WM831X_DCDC_MODE_FAST:
return REGULATOR_MODE_FAST;
case WM831X_DCDC_MODE_NORMAL:
return REGULATOR_MODE_NORMAL;
case WM831X_DCDC_MODE_STANDBY:
return REGULATOR_MODE_STANDBY;
case WM831X_DCDC_MODE_IDLE:
return REGULATOR_MODE_IDLE;
default:
BUG();
return -EINVAL;
}
}
static int wm831x_dcdc_set_mode_int(struct wm831x *wm831x, int reg,
unsigned int mode)
{
int val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = WM831X_DCDC_MODE_FAST;
break;
case REGULATOR_MODE_NORMAL:
val = WM831X_DCDC_MODE_NORMAL;
break;
case REGULATOR_MODE_STANDBY:
val = WM831X_DCDC_MODE_STANDBY;
break;
case REGULATOR_MODE_IDLE:
val = WM831X_DCDC_MODE_IDLE;
break;
default:
return -EINVAL;
}
return wm831x_set_bits(wm831x, reg, WM831X_DC1_ON_MODE_MASK,
val << WM831X_DC1_ON_MODE_SHIFT);
}
static int wm831x_dcdc_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
return wm831x_dcdc_set_mode_int(wm831x, reg, mode);
}
static int wm831x_dcdc_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
return wm831x_dcdc_set_mode_int(wm831x, reg, mode);
}
static int wm831x_dcdc_get_status(struct regulator_dev *rdev)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
int ret;
/* First, check for errors */
ret = wm831x_reg_read(wm831x, WM831X_DCDC_UV_STATUS);
if (ret < 0)
return ret;
if (ret & (1 << rdev_get_id(rdev))) {
dev_dbg(wm831x->dev, "DCDC%d under voltage\n",
rdev_get_id(rdev) + 1);
return REGULATOR_STATUS_ERROR;
}
/* DCDC1 and DCDC2 can additionally detect high voltage/current */
if (rdev_get_id(rdev) < 2) {
if (ret & (WM831X_DC1_OV_STS << rdev_get_id(rdev))) {
dev_dbg(wm831x->dev, "DCDC%d over voltage\n",
rdev_get_id(rdev) + 1);
return REGULATOR_STATUS_ERROR;
}
if (ret & (WM831X_DC1_HC_STS << rdev_get_id(rdev))) {
dev_dbg(wm831x->dev, "DCDC%d over current\n",
rdev_get_id(rdev) + 1);
return REGULATOR_STATUS_ERROR;
}
}
/* Is the regulator on? */
ret = wm831x_reg_read(wm831x, WM831X_DCDC_STATUS);
if (ret < 0)
return ret;
if (!(ret & (1 << rdev_get_id(rdev))))
return REGULATOR_STATUS_OFF;
/* TODO: When we handle hardware control modes so we can report the
* current mode. */
return REGULATOR_STATUS_ON;
}
static irqreturn_t wm831x_dcdc_uv_irq(int irq, void *data)
{
struct wm831x_dcdc *dcdc = data;
regulator_notifier_call_chain(dcdc->regulator,
REGULATOR_EVENT_UNDER_VOLTAGE,
NULL);
return IRQ_HANDLED;
}
static irqreturn_t wm831x_dcdc_oc_irq(int irq, void *data)
{
struct wm831x_dcdc *dcdc = data;
regulator_notifier_call_chain(dcdc->regulator,
REGULATOR_EVENT_OVER_CURRENT,
NULL);
return IRQ_HANDLED;
}
/*
* BUCKV specifics
*/
static const struct linear_range wm831x_buckv_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 0x7, 0),
REGULATOR_LINEAR_RANGE(600000, 0x8, 0x68, 12500),
};
static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
if (state == dcdc->dvs_gpio_state)
return 0;
dcdc->dvs_gpio_state = state;
gpiod_set_value(dcdc->dvs_gpiod, state);
/* Should wait for DVS state change to be asserted if we have
* a GPIO for it, for now assume the device is configured
* for the fastest possible transition.
*/
return 0;
}
static int wm831x_buckv_set_voltage_sel(struct regulator_dev *rdev,
unsigned vsel)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
int on_reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
int dvs_reg = dcdc->base + WM831X_DCDC_DVS_CONTROL;
int ret;
/* If this value is already set then do a GPIO update if we can */
if (dcdc->dvs_gpiod && dcdc->on_vsel == vsel)
return wm831x_buckv_set_dvs(rdev, 0);
if (dcdc->dvs_gpiod && dcdc->dvs_vsel == vsel)
return wm831x_buckv_set_dvs(rdev, 1);
/* Always set the ON status to the minimum voltage */
ret = wm831x_set_bits(wm831x, on_reg, WM831X_DC1_ON_VSEL_MASK, vsel);
if (ret < 0)
return ret;
dcdc->on_vsel = vsel;
if (!dcdc->dvs_gpiod)
return ret;
/* Kick the voltage transition now */
ret = wm831x_buckv_set_dvs(rdev, 0);
if (ret < 0)
return ret;
/*
* If this VSEL is higher than the last one we've seen then
* remember it as the DVS VSEL. This is optimised for CPUfreq
* usage where we want to get to the highest voltage very
* quickly.
*/
if (vsel > dcdc->dvs_vsel) {
ret = wm831x_set_bits(wm831x, dvs_reg,
WM831X_DC1_DVS_VSEL_MASK,
vsel);
if (ret == 0)
dcdc->dvs_vsel = vsel;
else
dev_warn(wm831x->dev,
"Failed to set DCDC DVS VSEL: %d\n", ret);
}
return 0;
}
static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev,
int uV)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
int vsel;
vsel = regulator_map_voltage_linear_range(rdev, uV, uV);
if (vsel < 0)
return vsel;
return wm831x_set_bits(wm831x, reg, WM831X_DC1_SLP_VSEL_MASK, vsel);
}
static int wm831x_buckv_get_voltage_sel(struct regulator_dev *rdev)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
if (dcdc->dvs_gpiod && dcdc->dvs_gpio_state)
return dcdc->dvs_vsel;
else
return dcdc->on_vsel;
}
/* Current limit options */
static const unsigned int wm831x_dcdc_ilim[] = {
125000, 250000, 375000, 500000, 625000, 750000, 875000, 1000000
};
static const struct regulator_ops wm831x_buckv_ops = {
.set_voltage_sel = wm831x_buckv_set_voltage_sel,
.get_voltage_sel = wm831x_buckv_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_suspend_voltage = wm831x_buckv_set_suspend_voltage,
.set_current_limit = regulator_set_current_limit_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_status = wm831x_dcdc_get_status,
.get_mode = wm831x_dcdc_get_mode,
.set_mode = wm831x_dcdc_set_mode,
.set_suspend_mode = wm831x_dcdc_set_suspend_mode,
};
/*
* Set up DVS control. We just log errors since we can still run
* (with reduced performance) if we fail.
*/
static void wm831x_buckv_dvs_init(struct platform_device *pdev,
struct wm831x_dcdc *dcdc,
struct wm831x_buckv_pdata *pdata)
{
struct wm831x *wm831x = dcdc->wm831x;
int ret;
u16 ctrl;
if (!pdata)
return;
/* gpiolib won't let us read the GPIO status so pick the higher
* of the two existing voltages so we take it as platform data.
*/
dcdc->dvs_gpio_state = pdata->dvs_init_state;
dcdc->dvs_gpiod = devm_gpiod_get(&pdev->dev, "dvs",
dcdc->dvs_gpio_state ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
if (IS_ERR(dcdc->dvs_gpiod)) {
dev_err(wm831x->dev, "Failed to get %s DVS GPIO: %ld\n",
dcdc->name, PTR_ERR(dcdc->dvs_gpiod));
return;
}
switch (pdata->dvs_control_src) {
case 1:
ctrl = 2 << WM831X_DC1_DVS_SRC_SHIFT;
break;
case 2:
ctrl = 3 << WM831X_DC1_DVS_SRC_SHIFT;
break;
default:
dev_err(wm831x->dev, "Invalid DVS control source %d for %s\n",
pdata->dvs_control_src, dcdc->name);
return;
}
/* If DVS_VSEL is set to the minimum value then raise it to ON_VSEL
* to make bootstrapping a bit smoother.
*/
if (!dcdc->dvs_vsel) {
ret = wm831x_set_bits(wm831x,
dcdc->base + WM831X_DCDC_DVS_CONTROL,
WM831X_DC1_DVS_VSEL_MASK, dcdc->on_vsel);
if (ret == 0)
dcdc->dvs_vsel = dcdc->on_vsel;
else
dev_warn(wm831x->dev, "Failed to set DVS_VSEL: %d\n",
ret);
}
ret = wm831x_set_bits(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL,
WM831X_DC1_DVS_SRC_MASK, ctrl);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to set %s DVS source: %d\n",
dcdc->name, ret);
}
}
static int wm831x_buckv_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev);
struct regulator_config config = { };
int id;
struct wm831x_dcdc *dcdc;
struct resource *res;
int ret, irq;
if (pdata && pdata->wm831x_num)
id = (pdata->wm831x_num * 10) + 1;
else
id = 0;
id = pdev->id - id;
dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc),
GFP_KERNEL);
if (!dcdc)
return -ENOMEM;
dcdc->wm831x = wm831x;
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
if (res == NULL) {
dev_err(&pdev->dev, "No REG resource\n");
ret = -EINVAL;
goto err;
}
dcdc->base = res->start;
snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
dcdc->desc.name = dcdc->name;
snprintf(dcdc->supply_name, sizeof(dcdc->supply_name),
"DC%dVDD", id + 1);
dcdc->desc.supply_name = dcdc->supply_name;
dcdc->desc.id = id;
dcdc->desc.type = REGULATOR_VOLTAGE;
dcdc->desc.n_voltages = WM831X_BUCKV_MAX_SELECTOR + 1;
dcdc->desc.linear_ranges = wm831x_buckv_ranges;
dcdc->desc.n_linear_ranges = ARRAY_SIZE(wm831x_buckv_ranges);
dcdc->desc.ops = &wm831x_buckv_ops;
dcdc->desc.owner = THIS_MODULE;
dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
dcdc->desc.enable_mask = 1 << id;
dcdc->desc.csel_reg = dcdc->base + WM831X_DCDC_CONTROL_2;
dcdc->desc.csel_mask = WM831X_DC1_HC_THR_MASK;
dcdc->desc.n_current_limits = ARRAY_SIZE(wm831x_dcdc_ilim);
dcdc->desc.curr_table = wm831x_dcdc_ilim;
ret = wm831x_reg_read(wm831x, dcdc->base + WM831X_DCDC_ON_CONFIG);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read ON VSEL: %d\n", ret);
goto err;
}
dcdc->on_vsel = ret & WM831X_DC1_ON_VSEL_MASK;
ret = wm831x_reg_read(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL);
if (ret < 0) {
dev_err(wm831x->dev, "Failed to read DVS VSEL: %d\n", ret);
goto err;
}
dcdc->dvs_vsel = ret & WM831X_DC1_DVS_VSEL_MASK;
if (pdata && pdata->dcdc[id])
wm831x_buckv_dvs_init(pdev, dcdc,
pdata->dcdc[id]->driver_data);
config.dev = pdev->dev.parent;
if (pdata)
config.init_data = pdata->dcdc[id];
config.driver_data = dcdc;
config.regmap = wm831x->regmap;
dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
&config);
if (IS_ERR(dcdc->regulator)) {
ret = PTR_ERR(dcdc->regulator);
dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
id + 1, ret);
goto err;
}
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dcdc->name, dcdc);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
irq, ret);
goto err;
}
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC"));
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
wm831x_dcdc_oc_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dcdc->name, dcdc);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n",
irq, ret);
goto err;
}
platform_set_drvdata(pdev, dcdc);
return 0;
err:
return ret;
}
static struct platform_driver wm831x_buckv_driver = {
.probe = wm831x_buckv_probe,
.driver = {
.name = "wm831x-buckv",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
/*
* BUCKP specifics
*/
static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
int sel;
sel = regulator_map_voltage_linear(rdev, uV, uV);
if (sel < 0)
return sel;
return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, sel);
}
static const struct regulator_ops wm831x_buckp_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_suspend_voltage = wm831x_buckp_set_suspend_voltage,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_status = wm831x_dcdc_get_status,
.get_mode = wm831x_dcdc_get_mode,
.set_mode = wm831x_dcdc_set_mode,
.set_suspend_mode = wm831x_dcdc_set_suspend_mode,
};
static int wm831x_buckp_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev);
struct regulator_config config = { };
int id;
struct wm831x_dcdc *dcdc;
struct resource *res;
int ret, irq;
if (pdata && pdata->wm831x_num)
id = (pdata->wm831x_num * 10) + 1;
else
id = 0;
id = pdev->id - id;
dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc),
GFP_KERNEL);
if (!dcdc)
return -ENOMEM;
dcdc->wm831x = wm831x;
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
if (res == NULL) {
dev_err(&pdev->dev, "No REG resource\n");
ret = -EINVAL;
goto err;
}
dcdc->base = res->start;
snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
dcdc->desc.name = dcdc->name;
snprintf(dcdc->supply_name, sizeof(dcdc->supply_name),
"DC%dVDD", id + 1);
dcdc->desc.supply_name = dcdc->supply_name;
dcdc->desc.id = id;
dcdc->desc.type = REGULATOR_VOLTAGE;
dcdc->desc.n_voltages = WM831X_BUCKP_MAX_SELECTOR + 1;
dcdc->desc.ops = &wm831x_buckp_ops;
dcdc->desc.owner = THIS_MODULE;
dcdc->desc.vsel_reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
dcdc->desc.vsel_mask = WM831X_DC3_ON_VSEL_MASK;
dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
dcdc->desc.enable_mask = 1 << id;
dcdc->desc.min_uV = 850000;
dcdc->desc.uV_step = 25000;
config.dev = pdev->dev.parent;
if (pdata)
config.init_data = pdata->dcdc[id];
config.driver_data = dcdc;
config.regmap = wm831x->regmap;
dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
&config);
if (IS_ERR(dcdc->regulator)) {
ret = PTR_ERR(dcdc->regulator);
dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
id + 1, ret);
goto err;
}
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dcdc->name, dcdc);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
irq, ret);
goto err;
}
platform_set_drvdata(pdev, dcdc);
return 0;
err:
return ret;
}
static struct platform_driver wm831x_buckp_driver = {
.probe = wm831x_buckp_probe,
.driver = {
.name = "wm831x-buckp",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
/*
* DCDC boost convertors
*/
static int wm831x_boostp_get_status(struct regulator_dev *rdev)
{
struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
struct wm831x *wm831x = dcdc->wm831x;
int ret;
/* First, check for errors */
ret = wm831x_reg_read(wm831x, WM831X_DCDC_UV_STATUS);
if (ret < 0)
return ret;
if (ret & (1 << rdev_get_id(rdev))) {
dev_dbg(wm831x->dev, "DCDC%d under voltage\n",
rdev_get_id(rdev) + 1);
return REGULATOR_STATUS_ERROR;
}
/* Is the regulator on? */
ret = wm831x_reg_read(wm831x, WM831X_DCDC_STATUS);
if (ret < 0)
return ret;
if (ret & (1 << rdev_get_id(rdev)))
return REGULATOR_STATUS_ON;
else
return REGULATOR_STATUS_OFF;
}
static const struct regulator_ops wm831x_boostp_ops = {
.get_status = wm831x_boostp_get_status,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static int wm831x_boostp_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev);
struct regulator_config config = { };
int id = pdev->id % ARRAY_SIZE(pdata->dcdc);
struct wm831x_dcdc *dcdc;
struct resource *res;
int ret, irq;
dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
if (pdata == NULL || pdata->dcdc[id] == NULL)
return -ENODEV;
dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc), GFP_KERNEL);
if (!dcdc)
return -ENOMEM;
dcdc->wm831x = wm831x;
res = platform_get_resource(pdev, IORESOURCE_REG, 0);
if (res == NULL) {
dev_err(&pdev->dev, "No REG resource\n");
return -EINVAL;
}
dcdc->base = res->start;
snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
dcdc->desc.name = dcdc->name;
dcdc->desc.id = id;
dcdc->desc.type = REGULATOR_VOLTAGE;
dcdc->desc.ops = &wm831x_boostp_ops;
dcdc->desc.owner = THIS_MODULE;
dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
dcdc->desc.enable_mask = 1 << id;
config.dev = pdev->dev.parent;
if (pdata)
config.init_data = pdata->dcdc[id];
config.driver_data = dcdc;
config.regmap = wm831x->regmap;
dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
&config);
if (IS_ERR(dcdc->regulator)) {
ret = PTR_ERR(dcdc->regulator);
dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
id + 1, ret);
return ret;
}
irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
wm831x_dcdc_uv_irq,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
dcdc->name,
dcdc);
if (ret != 0) {
dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
irq, ret);
return ret;
}
platform_set_drvdata(pdev, dcdc);
return 0;
}
static struct platform_driver wm831x_boostp_driver = {
.probe = wm831x_boostp_probe,
.driver = {
.name = "wm831x-boostp",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
/*
* External Power Enable
*
* These aren't actually DCDCs but look like them in hardware so share
* code.
*/
#define WM831X_EPE_BASE 6
static const struct regulator_ops wm831x_epe_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_status = wm831x_dcdc_get_status,
};
static int wm831x_epe_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
struct wm831x_pdata *pdata = dev_get_platdata(wm831x->dev);
struct regulator_config config = { };
int id = pdev->id % ARRAY_SIZE(pdata->epe);
struct wm831x_dcdc *dcdc;
int ret;
dev_dbg(&pdev->dev, "Probing EPE%d\n", id + 1);
dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc), GFP_KERNEL);
if (!dcdc)
return -ENOMEM;
dcdc->wm831x = wm831x;
/* For current parts this is correct; probably need to revisit
* in future.
*/
snprintf(dcdc->name, sizeof(dcdc->name), "EPE%d", id + 1);
dcdc->desc.name = dcdc->name;
dcdc->desc.id = id + WM831X_EPE_BASE; /* Offset in DCDC registers */
dcdc->desc.ops = &wm831x_epe_ops;
dcdc->desc.type = REGULATOR_VOLTAGE;
dcdc->desc.owner = THIS_MODULE;
dcdc->desc.enable_reg = WM831X_DCDC_ENABLE;
dcdc->desc.enable_mask = 1 << dcdc->desc.id;
config.dev = pdev->dev.parent;
if (pdata)
config.init_data = pdata->epe[id];
config.driver_data = dcdc;
config.regmap = wm831x->regmap;
dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
&config);
if (IS_ERR(dcdc->regulator)) {
ret = PTR_ERR(dcdc->regulator);
dev_err(wm831x->dev, "Failed to register EPE%d: %d\n",
id + 1, ret);
goto err;
}
platform_set_drvdata(pdev, dcdc);
return 0;
err:
return ret;
}
static struct platform_driver wm831x_epe_driver = {
.probe = wm831x_epe_probe,
.driver = {
.name = "wm831x-epe",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static struct platform_driver * const drivers[] = {
&wm831x_buckv_driver,
&wm831x_buckp_driver,
&wm831x_boostp_driver,
&wm831x_epe_driver,
};
static int __init wm831x_dcdc_init(void)
{
return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
subsys_initcall(wm831x_dcdc_init);
static void __exit wm831x_dcdc_exit(void)
{
platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_exit(wm831x_dcdc_exit);
/* Module information */
MODULE_AUTHOR("Mark Brown");
MODULE_DESCRIPTION("WM831x DC-DC convertor driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm831x-buckv");
MODULE_ALIAS("platform:wm831x-buckp");
MODULE_ALIAS("platform:wm831x-boostp");
MODULE_ALIAS("platform:wm831x-epe");
| linux-master | drivers/regulator/wm831x-dcdc.c |
// SPDX-License-Identifier: GPL-2.0+
//
// max77686.c - Regulator driver for the Maxim 77686
//
// Copyright (C) 2012 Samsung Electronics
// Chiwoong Byun <[email protected]>
// Jonghwa Lee <[email protected]>
//
// This driver is based on max8997.c
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/max77686.h>
#include <linux/mfd/max77686-private.h>
#define MAX77686_LDO_MINUV 800000
#define MAX77686_LDO_UVSTEP 50000
#define MAX77686_LDO_LOW_MINUV 800000
#define MAX77686_LDO_LOW_UVSTEP 25000
#define MAX77686_BUCK_MINUV 750000
#define MAX77686_BUCK_UVSTEP 50000
#define MAX77686_BUCK_ENABLE_TIME 40 /* us */
#define MAX77686_DVS_ENABLE_TIME 22 /* us */
#define MAX77686_RAMP_DELAY 100000 /* uV/us */
#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */
#define MAX77686_DVS_MINUV 600000
#define MAX77686_DVS_UVSTEP 12500
/*
* Value for configuring buck[89] and LDO{20,21,22} as GPIO control.
* It is the same as 'off' for other regulators.
*/
#define MAX77686_GPIO_CONTROL 0x0
/*
* Values used for configuring LDOs and bucks.
* Forcing low power mode: LDO1, 3-5, 9, 13, 17-26
*/
#define MAX77686_LDO_LOWPOWER 0x1
/*
* On/off controlled by PWRREQ:
* - LDO2, 6-8, 10-12, 14-16
* - buck[1234]
*/
#define MAX77686_OFF_PWRREQ 0x1
/* Low power mode controlled by PWRREQ: All LDOs */
#define MAX77686_LDO_LOWPOWER_PWRREQ 0x2
/* Forcing low power mode: buck[234] */
#define MAX77686_BUCK_LOWPOWER 0x2
#define MAX77686_NORMAL 0x3
#define MAX77686_OPMODE_SHIFT 6
#define MAX77686_OPMODE_BUCK234_SHIFT 4
#define MAX77686_OPMODE_MASK 0x3
#define MAX77686_VSEL_MASK 0x3F
#define MAX77686_DVS_VSEL_MASK 0xFF
#define MAX77686_RAMP_RATE_MASK 0xC0
#define MAX77686_REGULATORS MAX77686_REG_MAX
#define MAX77686_LDOS 26
struct max77686_data {
struct device *dev;
DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS);
/* Array indexed by regulator id */
unsigned int opmode[MAX77686_REGULATORS];
};
static unsigned int max77686_get_opmode_shift(int id)
{
switch (id) {
case MAX77686_BUCK1:
case MAX77686_BUCK5 ... MAX77686_BUCK9:
return 0;
case MAX77686_BUCK2 ... MAX77686_BUCK4:
return MAX77686_OPMODE_BUCK234_SHIFT;
default:
/* all LDOs */
return MAX77686_OPMODE_SHIFT;
}
}
/*
* When regulator is configured for GPIO control then it
* replaces "normal" mode. Any change from low power mode to normal
* should actually change to GPIO control.
* Map normal mode to proper value for such regulators.
*/
static unsigned int max77686_map_normal_mode(struct max77686_data *max77686,
int id)
{
switch (id) {
case MAX77686_BUCK8:
case MAX77686_BUCK9:
case MAX77686_LDO20 ... MAX77686_LDO22:
if (test_bit(id, max77686->gpio_enabled))
return MAX77686_GPIO_CONTROL;
}
return MAX77686_NORMAL;
}
/* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */
static int max77686_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int val, shift;
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
shift = max77686_get_opmode_shift(id);
val = MAX77686_OFF_PWRREQ;
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val << shift);
if (ret)
return ret;
max77686->opmode[id] = val;
return 0;
}
/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
static int max77686_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
unsigned int val;
int ret, id = rdev_get_id(rdev);
/* BUCK[5-9] doesn't support this feature */
if (id >= MAX77686_BUCK5)
return 0;
switch (mode) {
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77686_LDO_LOWPOWER_PWRREQ;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = max77686_map_normal_mode(max77686, id);
break;
default:
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
rdev->desc->name, mode);
return -EINVAL;
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
val << MAX77686_OPMODE_SHIFT);
if (ret)
return ret;
max77686->opmode[id] = val;
return 0;
}
/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
unsigned int val;
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
switch (mode) {
case REGULATOR_MODE_STANDBY: /* switch off */
val = MAX77686_OFF_PWRREQ;
break;
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77686_LDO_LOWPOWER_PWRREQ;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = max77686_map_normal_mode(max77686, id);
break;
default:
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
rdev->desc->name, mode);
return -EINVAL;
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
val << MAX77686_OPMODE_SHIFT);
if (ret)
return ret;
max77686->opmode[id] = val;
return 0;
}
static int max77686_enable(struct regulator_dev *rdev)
{
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
unsigned int shift;
int id = rdev_get_id(rdev);
shift = max77686_get_opmode_shift(id);
if (max77686->opmode[id] == MAX77686_OFF_PWRREQ)
max77686->opmode[id] = max77686_map_normal_mode(max77686, id);
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
max77686->opmode[id] << shift);
}
static int max77686_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct max77686_data *max77686 = config->driver_data;
int ret;
switch (desc->id) {
case MAX77686_BUCK8:
case MAX77686_BUCK9:
case MAX77686_LDO20 ... MAX77686_LDO22:
config->ena_gpiod = fwnode_gpiod_get_index(
of_fwnode_handle(np),
"maxim,ena",
0,
GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
"max77686-regulator");
if (IS_ERR(config->ena_gpiod))
config->ena_gpiod = NULL;
break;
default:
return 0;
}
if (config->ena_gpiod) {
set_bit(desc->id, max77686->gpio_enabled);
ret = regmap_update_bits(config->regmap, desc->enable_reg,
desc->enable_mask,
MAX77686_GPIO_CONTROL);
if (ret) {
gpiod_put(config->ena_gpiod);
config->ena_gpiod = NULL;
}
}
return 0;
}
static const unsigned int max77686_buck_dvs_ramp_table[] = {
13750, 27500, 55000, 100000
};
static const struct regulator_ops max77686_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_mode = max77686_set_suspend_mode,
};
static const struct regulator_ops max77686_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_mode = max77686_ldo_set_suspend_mode,
.set_suspend_disable = max77686_set_suspend_disable,
};
static const struct regulator_ops max77686_buck1_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_disable = max77686_set_suspend_disable,
};
static const struct regulator_ops max77686_buck_dvs_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_suspend_disable = max77686_set_suspend_disable,
};
#define regulator_desc_ldo(num) { \
.name = "LDO"#num, \
.of_match = of_match_ptr("LDO"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.of_parse_cb = max77686_of_parse_cb, \
.id = MAX77686_LDO##num, \
.ops = &max77686_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_LDO_MINUV, \
.uV_step = MAX77686_LDO_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_SHIFT, \
}
#define regulator_desc_lpm_ldo(num) { \
.name = "LDO"#num, \
.of_match = of_match_ptr("LDO"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.id = MAX77686_LDO##num, \
.ops = &max77686_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_LDO_MINUV, \
.uV_step = MAX77686_LDO_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_SHIFT, \
}
#define regulator_desc_ldo_low(num) { \
.name = "LDO"#num, \
.of_match = of_match_ptr("LDO"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.id = MAX77686_LDO##num, \
.ops = &max77686_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_LDO_LOW_MINUV, \
.uV_step = MAX77686_LDO_LOW_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_SHIFT, \
}
#define regulator_desc_ldo1_low(num) { \
.name = "LDO"#num, \
.of_match = of_match_ptr("LDO"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.id = MAX77686_LDO##num, \
.ops = &max77686_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_LDO_LOW_MINUV, \
.uV_step = MAX77686_LDO_LOW_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_SHIFT, \
}
#define regulator_desc_buck(num) { \
.name = "BUCK"#num, \
.of_match = of_match_ptr("BUCK"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.of_parse_cb = max77686_of_parse_cb, \
.id = MAX77686_BUCK##num, \
.ops = &max77686_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_BUCK_MINUV, \
.uV_step = MAX77686_BUCK_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.enable_time = MAX77686_BUCK_ENABLE_TIME, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \
.enable_mask = MAX77686_OPMODE_MASK, \
}
#define regulator_desc_buck1(num) { \
.name = "BUCK"#num, \
.of_match = of_match_ptr("BUCK"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.id = MAX77686_BUCK##num, \
.ops = &max77686_buck1_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_BUCK_MINUV, \
.uV_step = MAX77686_BUCK_UVSTEP, \
.ramp_delay = MAX77686_RAMP_DELAY, \
.enable_time = MAX77686_BUCK_ENABLE_TIME, \
.n_voltages = MAX77686_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK1OUT, \
.vsel_mask = MAX77686_VSEL_MASK, \
.enable_reg = MAX77686_REG_BUCK1CTRL, \
.enable_mask = MAX77686_OPMODE_MASK, \
}
#define regulator_desc_buck_dvs(num) { \
.name = "BUCK"#num, \
.of_match = of_match_ptr("BUCK"#num), \
.regulators_node = of_match_ptr("voltage-regulators"), \
.id = MAX77686_BUCK##num, \
.ops = &max77686_buck_dvs_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_DVS_MINUV, \
.uV_step = MAX77686_DVS_UVSTEP, \
.ramp_delay = MAX77686_DVS_RAMP_DELAY, \
.enable_time = MAX77686_DVS_ENABLE_TIME, \
.n_voltages = MAX77686_DVS_VSEL_MASK + 1, \
.vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \
.vsel_mask = MAX77686_DVS_VSEL_MASK, \
.enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_BUCK234_SHIFT, \
.ramp_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \
.ramp_mask = MAX77686_RAMP_RATE_MASK, \
.ramp_delay_table = max77686_buck_dvs_ramp_table, \
.n_ramp_values = ARRAY_SIZE(max77686_buck_dvs_ramp_table), \
}
static const struct regulator_desc regulators[] = {
regulator_desc_ldo1_low(1),
regulator_desc_ldo_low(2),
regulator_desc_ldo(3),
regulator_desc_ldo(4),
regulator_desc_ldo(5),
regulator_desc_ldo_low(6),
regulator_desc_ldo_low(7),
regulator_desc_ldo_low(8),
regulator_desc_ldo(9),
regulator_desc_lpm_ldo(10),
regulator_desc_lpm_ldo(11),
regulator_desc_lpm_ldo(12),
regulator_desc_ldo(13),
regulator_desc_lpm_ldo(14),
regulator_desc_ldo_low(15),
regulator_desc_lpm_ldo(16),
regulator_desc_ldo(17),
regulator_desc_ldo(18),
regulator_desc_ldo(19),
regulator_desc_ldo(20),
regulator_desc_ldo(21),
regulator_desc_ldo(22),
regulator_desc_ldo(23),
regulator_desc_ldo(24),
regulator_desc_ldo(25),
regulator_desc_ldo(26),
regulator_desc_buck1(1),
regulator_desc_buck_dvs(2),
regulator_desc_buck_dvs(3),
regulator_desc_buck_dvs(4),
regulator_desc_buck(5),
regulator_desc_buck(6),
regulator_desc_buck(7),
regulator_desc_buck(8),
regulator_desc_buck(9),
};
static int max77686_pmic_probe(struct platform_device *pdev)
{
struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max77686_data *max77686;
int i;
struct regulator_config config = { };
dev_dbg(&pdev->dev, "%s\n", __func__);
max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data),
GFP_KERNEL);
if (!max77686)
return -ENOMEM;
max77686->dev = &pdev->dev;
config.dev = iodev->dev;
config.regmap = iodev->regmap;
config.driver_data = max77686;
platform_set_drvdata(pdev, max77686);
for (i = 0; i < MAX77686_REGULATORS; i++) {
struct regulator_dev *rdev;
int id = regulators[i].id;
max77686->opmode[id] = MAX77686_NORMAL;
rdev = devm_regulator_register(&pdev->dev,
®ulators[i], &config);
if (IS_ERR(rdev)) {
int ret = PTR_ERR(rdev);
dev_err(&pdev->dev,
"regulator init failed for %d: %d\n", i, ret);
return ret;
}
}
return 0;
}
static const struct platform_device_id max77686_pmic_id[] = {
{"max77686-pmic", 0},
{ },
};
MODULE_DEVICE_TABLE(platform, max77686_pmic_id);
static struct platform_driver max77686_pmic_driver = {
.driver = {
.name = "max77686-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max77686_pmic_probe,
.id_table = max77686_pmic_id,
};
module_platform_driver(max77686_pmic_driver);
MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver");
MODULE_AUTHOR("Chiwoong Byun <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max77686-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <dt-bindings/regulator/richtek,rt5190a-regulator.h>
#include <linux/bits.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#define RT5190A_REG_MANUFACTURE 0x00
#define RT5190A_REG_BUCK2VSEL 0x04
#define RT5190A_REG_BUCK3VSEL 0x05
#define RT5190A_REG_DCDCCNTL 0x06
#define RT5190A_REG_ENABLE 0x07
#define RT5190A_REG_DISCHARGE 0x09
#define RT5190A_REG_PROTMODE 0x0A
#define RT5190A_REG_MUTECNTL 0x0B
#define RT5190A_REG_PGSTAT 0x0F
#define RT5190A_REG_OVINT 0x10
#define RT5190A_REG_HOTDIEMASK 0x17
#define RT5190A_VSEL_MASK GENMASK(6, 0)
#define RT5190A_RID_BITMASK(rid) BIT(rid + 1)
#define RT5190A_BUCK1_DISCHG_MASK GENMASK(1, 0)
#define RT5190A_BUCK1_DISCHG_ONVAL 0x01
#define RT5190A_OVERVOLT_MASK GENMASK(7, 0)
#define RT5190A_UNDERVOLT_MASK GENMASK(15, 8)
#define RT5190A_CH234OT_MASK BIT(29)
#define RT5190A_CHIPOT_MASK BIT(28)
#define RT5190A_BUCK23_MINUV 600000
#define RT5190A_BUCK23_MAXUV 1400000
#define RT5190A_BUCK23_STEPUV 10000
#define RT5190A_BUCK23_STEPNUM ((1400000 - 600000) / 10000 + 1)
enum {
RT5190A_IDX_BUCK1 = 0,
RT5190A_IDX_BUCK2,
RT5190A_IDX_BUCK3,
RT5190A_IDX_BUCK4,
RT5190A_IDX_LDO,
RT5190A_MAX_IDX
};
struct rt5190a_priv {
struct device *dev;
struct regmap *regmap;
struct regulator_desc rdesc[RT5190A_MAX_IDX];
struct regulator_dev *rdev[RT5190A_MAX_IDX];
};
static int rt5190a_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int rid = rdev_get_id(rdev);
unsigned int pgood_stat;
int ret;
ret = regmap_read(regmap, RT5190A_REG_PGSTAT, &pgood_stat);
if (ret)
return ret;
if (!(pgood_stat & RT5190A_RID_BITMASK(rid)))
*flags = REGULATOR_ERROR_FAIL;
else
*flags = 0;
return 0;
}
static int rt5190a_fixed_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int rid = rdev_get_id(rdev);
unsigned int mask = RT5190A_RID_BITMASK(rid), val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = mask;
break;
case REGULATOR_MODE_NORMAL:
val = 0;
break;
default:
return -EINVAL;
}
return regmap_update_bits(regmap, RT5190A_REG_DCDCCNTL, mask, val);
}
static unsigned int rt5190a_fixed_buck_get_mode(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int rid = rdev_get_id(rdev);
unsigned int val;
int ret;
ret = regmap_read(regmap, RT5190A_REG_DCDCCNTL, &val);
if (ret) {
dev_err(&rdev->dev, "Failed to get mode [%d]\n", ret);
return ret;
}
if (val & RT5190A_RID_BITMASK(rid))
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static const struct regulator_ops rt5190a_ranged_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_active_discharge = regulator_set_active_discharge_regmap,
.get_error_flags = rt5190a_get_error_flags,
};
static const struct regulator_ops rt5190a_fixed_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_mode = rt5190a_fixed_buck_set_mode,
.get_mode = rt5190a_fixed_buck_get_mode,
.get_error_flags = rt5190a_get_error_flags,
};
static const struct regulator_ops rt5190a_fixed_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.get_error_flags = rt5190a_get_error_flags,
};
static irqreturn_t rt5190a_irq_handler(int irq, void *data)
{
struct rt5190a_priv *priv = data;
__le32 raws;
unsigned int events, fields;
static const struct {
unsigned int bitmask;
unsigned int report;
} event_tbl[] = {
{ RT5190A_OVERVOLT_MASK, REGULATOR_ERROR_REGULATION_OUT },
{ RT5190A_UNDERVOLT_MASK, REGULATOR_ERROR_UNDER_VOLTAGE }
};
int i, j, ret;
ret = regmap_raw_read(priv->regmap, RT5190A_REG_OVINT, &raws,
sizeof(raws));
if (ret) {
dev_err(priv->dev, "Failed to read events\n");
return IRQ_NONE;
}
events = le32_to_cpu(raws);
ret = regmap_raw_write(priv->regmap, RT5190A_REG_OVINT, &raws,
sizeof(raws));
if (ret)
dev_err(priv->dev, "Failed to write-clear events\n");
/* Handle OV,UV events */
for (i = 0; i < ARRAY_SIZE(event_tbl); i++) {
fields = events & event_tbl[i].bitmask;
fields >>= ffs(event_tbl[i].bitmask) - 1;
for (j = 0; j < RT5190A_MAX_IDX; j++) {
if (!(fields & RT5190A_RID_BITMASK(j)))
continue;
regulator_notifier_call_chain(priv->rdev[j],
event_tbl[i].report,
NULL);
}
}
/* Handle CH234 OT event */
if (events & RT5190A_CH234OT_MASK) {
for (j = RT5190A_IDX_BUCK2; j < RT5190A_IDX_LDO; j++) {
regulator_notifier_call_chain(priv->rdev[j],
REGULATOR_ERROR_OVER_TEMP,
NULL);
}
}
/* Warning if CHIP OT occur */
if (events & RT5190A_CHIPOT_MASK)
dev_warn(priv->dev, "CHIP overheat\n");
return IRQ_HANDLED;
}
static unsigned int rt5190a_of_map_mode(unsigned int mode)
{
switch (mode) {
case RT5190A_OPMODE_AUTO:
return REGULATOR_MODE_NORMAL;
case RT5190A_OPMODE_FPWM:
return REGULATOR_MODE_FAST;
default:
return REGULATOR_MODE_INVALID;
}
}
static int rt5190a_of_parse_cb(struct rt5190a_priv *priv, int rid,
struct of_regulator_match *match)
{
struct regulator_desc *desc = priv->rdesc + rid;
struct regulator_init_data *init_data = match->init_data;
struct device_node *np = match->of_node;
bool latchup_enable;
unsigned int mask = RT5190A_RID_BITMASK(rid), val;
if (!init_data)
return 0;
switch (rid) {
case RT5190A_IDX_BUCK1:
case RT5190A_IDX_BUCK4:
case RT5190A_IDX_LDO:
init_data->constraints.apply_uV = 0;
if (init_data->constraints.min_uV ==
init_data->constraints.max_uV)
desc->fixed_uV = init_data->constraints.min_uV;
else {
dev_err(priv->dev,
"Variable voltage for fixed regulator\n");
return -EINVAL;
}
break;
default:
break;
}
latchup_enable = of_property_read_bool(np, "richtek,latchup-enable");
/* latchup: 0, default hiccup: 1 */
val = !latchup_enable ? mask : 0;
return regmap_update_bits(priv->regmap, RT5190A_REG_PROTMODE, mask, val);
}
static void rt5190a_fillin_regulator_desc(struct regulator_desc *desc, int rid)
{
static const char * const regu_name[] = { "buck1", "buck2",
"buck3", "buck4",
"ldo" };
static const char * const supply[] = { NULL, "vin2", "vin3", "vin4",
"vinldo" };
desc->name = regu_name[rid];
desc->supply_name = supply[rid];
desc->owner = THIS_MODULE;
desc->type = REGULATOR_VOLTAGE;
desc->id = rid;
desc->enable_reg = RT5190A_REG_ENABLE;
desc->enable_mask = RT5190A_RID_BITMASK(rid);
desc->active_discharge_reg = RT5190A_REG_DISCHARGE;
desc->active_discharge_mask = RT5190A_RID_BITMASK(rid);
desc->active_discharge_on = RT5190A_RID_BITMASK(rid);
switch (rid) {
case RT5190A_IDX_BUCK1:
desc->active_discharge_mask = RT5190A_BUCK1_DISCHG_MASK;
desc->active_discharge_on = RT5190A_BUCK1_DISCHG_ONVAL;
desc->n_voltages = 1;
desc->ops = &rt5190a_fixed_buck_ops;
desc->of_map_mode = rt5190a_of_map_mode;
break;
case RT5190A_IDX_BUCK2:
desc->vsel_reg = RT5190A_REG_BUCK2VSEL;
desc->vsel_mask = RT5190A_VSEL_MASK;
desc->min_uV = RT5190A_BUCK23_MINUV;
desc->uV_step = RT5190A_BUCK23_STEPUV;
desc->n_voltages = RT5190A_BUCK23_STEPNUM;
desc->ops = &rt5190a_ranged_buck_ops;
break;
case RT5190A_IDX_BUCK3:
desc->vsel_reg = RT5190A_REG_BUCK3VSEL;
desc->vsel_mask = RT5190A_VSEL_MASK;
desc->min_uV = RT5190A_BUCK23_MINUV;
desc->uV_step = RT5190A_BUCK23_STEPUV;
desc->n_voltages = RT5190A_BUCK23_STEPNUM;
desc->ops = &rt5190a_ranged_buck_ops;
break;
case RT5190A_IDX_BUCK4:
desc->n_voltages = 1;
desc->ops = &rt5190a_fixed_buck_ops;
desc->of_map_mode = rt5190a_of_map_mode;
break;
case RT5190A_IDX_LDO:
desc->n_voltages = 1;
desc->ops = &rt5190a_fixed_ldo_ops;
break;
}
}
static struct of_regulator_match rt5190a_regulator_match[] = {
{ .name = "buck1", },
{ .name = "buck2", },
{ .name = "buck3", },
{ .name = "buck4", },
{ .name = "ldo", }
};
static int rt5190a_parse_regulator_dt_data(struct rt5190a_priv *priv)
{
struct device_node *regulator_np;
struct regulator_desc *reg_desc;
struct of_regulator_match *match;
int i, ret;
for (i = 0; i < RT5190A_MAX_IDX; i++) {
reg_desc = priv->rdesc + i;
match = rt5190a_regulator_match + i;
rt5190a_fillin_regulator_desc(reg_desc, i);
match->desc = reg_desc;
}
regulator_np = of_get_child_by_name(priv->dev->of_node, "regulators");
if (!regulator_np) {
dev_err(priv->dev, "Could not find 'regulators' node\n");
return -ENODEV;
}
ret = of_regulator_match(priv->dev, regulator_np,
rt5190a_regulator_match,
ARRAY_SIZE(rt5190a_regulator_match));
of_node_put(regulator_np);
if (ret < 0) {
dev_err(priv->dev,
"Error parsing regulator init data: %d\n", ret);
return ret;
}
for (i = 0; i < RT5190A_MAX_IDX; i++) {
match = rt5190a_regulator_match + i;
ret = rt5190a_of_parse_cb(priv, i, match);
if (ret) {
dev_err(priv->dev, "Failed in [%d] of_parse_cb\n", i);
return ret;
}
}
return 0;
}
static const struct reg_sequence rt5190a_init_patch[] = {
{ 0x09, 0x3d, },
{ 0x0a, 0x3e, },
{ 0x0b, 0x01, },
{ 0x10, 0xff, },
{ 0x11, 0xff, },
{ 0x12, 0xff, },
{ 0x13, 0xff, },
{ 0x14, 0, },
{ 0x15, 0, },
{ 0x16, 0x3e, },
{ 0x17, 0, }
};
static int rt5190a_device_initialize(struct rt5190a_priv *priv)
{
bool mute_enable;
int ret;
ret = regmap_register_patch(priv->regmap, rt5190a_init_patch,
ARRAY_SIZE(rt5190a_init_patch));
if (ret) {
dev_err(priv->dev, "Failed to do register patch\n");
return ret;
}
mute_enable = device_property_read_bool(priv->dev,
"richtek,mute-enable");
if (mute_enable) {
ret = regmap_write(priv->regmap, RT5190A_REG_MUTECNTL, 0x00);
if (ret) {
dev_err(priv->dev, "Failed to enable mute function\n");
return ret;
}
}
return 0;
}
static int rt5190a_device_check(struct rt5190a_priv *priv)
{
u16 devid;
int ret;
ret = regmap_raw_read(priv->regmap, RT5190A_REG_MANUFACTURE, &devid,
sizeof(devid));
if (ret)
return ret;
if (devid) {
dev_err(priv->dev, "Incorrect device id 0x%04x\n", devid);
return -ENODEV;
}
return 0;
}
static const struct regmap_config rt5190a_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RT5190A_REG_HOTDIEMASK,
};
static int rt5190a_probe(struct i2c_client *i2c)
{
struct rt5190a_priv *priv;
struct regulator_config cfg = {};
int i, ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = &i2c->dev;
priv->regmap = devm_regmap_init_i2c(i2c, &rt5190a_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(&i2c->dev, "Failed to allocate regmap\n");
return PTR_ERR(priv->regmap);
}
ret = rt5190a_device_check(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to check device %d\n", ret);
return ret;
}
ret = rt5190a_device_initialize(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to initialize the device\n");
return ret;
}
ret = rt5190a_parse_regulator_dt_data(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to parse regulator dt\n");
return ret;
}
cfg.dev = &i2c->dev;
cfg.regmap = priv->regmap;
for (i = 0; i < RT5190A_MAX_IDX; i++) {
struct regulator_desc *desc = priv->rdesc + i;
struct of_regulator_match *match = rt5190a_regulator_match + i;
cfg.init_data = match->init_data;
cfg.of_node = match->of_node;
priv->rdev[i] = devm_regulator_register(&i2c->dev, desc, &cfg);
if (IS_ERR(priv->rdev[i])) {
dev_err(&i2c->dev, "Failed to register regulator %s\n",
desc->name);
return PTR_ERR(priv->rdev[i]);
}
}
if (i2c->irq) {
ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
rt5190a_irq_handler,
IRQF_ONESHOT,
dev_name(&i2c->dev), priv);
if (ret) {
dev_err(&i2c->dev, "Failed to register interrupt\n");
return ret;
}
}
return 0;
}
static const struct of_device_id __maybe_unused rt5190a_device_table[] = {
{ .compatible = "richtek,rt5190a", },
{}
};
MODULE_DEVICE_TABLE(of, rt5190a_device_table);
static struct i2c_driver rt5190a_driver = {
.driver = {
.name = "rt5190a",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = rt5190a_device_table,
},
.probe = rt5190a_probe,
};
module_i2c_driver(rt5190a_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_DESCRIPTION("Richtek RT5190A Regulator Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rt5190a-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// max14577.c - Regulator driver for the Maxim 14577/77836
//
// Copyright (C) 2013,2014 Samsung Electronics
// Krzysztof Kozlowski <[email protected]>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/max14577.h>
#include <linux/mfd/max14577-private.h>
#include <linux/regulator/of_regulator.h>
static int max14577_reg_is_enabled(struct regulator_dev *rdev)
{
int rid = rdev_get_id(rdev);
struct regmap *rmap = rdev->regmap;
u8 reg_data;
switch (rid) {
case MAX14577_CHARGER:
max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL2, ®_data);
if ((reg_data & CHGCTRL2_MBCHOSTEN_MASK) == 0)
return 0;
max14577_read_reg(rmap, MAX14577_CHG_REG_STATUS3, ®_data);
if ((reg_data & STATUS3_CGMBC_MASK) == 0)
return 0;
/* MBCHOSTEN and CGMBC are on */
return 1;
default:
return -EINVAL;
}
}
static int max14577_reg_get_current_limit(struct regulator_dev *rdev)
{
u8 reg_data;
struct regmap *rmap = rdev->regmap;
struct max14577 *max14577 = rdev_get_drvdata(rdev);
const struct maxim_charger_current *limits =
&maxim_charger_currents[max14577->dev_type];
if (rdev_get_id(rdev) != MAX14577_CHARGER)
return -EINVAL;
max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL4, ®_data);
if ((reg_data & CHGCTRL4_MBCICHWRCL_MASK) == 0)
return limits->min;
reg_data = ((reg_data & CHGCTRL4_MBCICHWRCH_MASK) >>
CHGCTRL4_MBCICHWRCH_SHIFT);
return limits->high_start + reg_data * limits->high_step;
}
static int max14577_reg_set_current_limit(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
u8 reg_data;
int ret;
struct max14577 *max14577 = rdev_get_drvdata(rdev);
const struct maxim_charger_current *limits =
&maxim_charger_currents[max14577->dev_type];
if (rdev_get_id(rdev) != MAX14577_CHARGER)
return -EINVAL;
ret = maxim_charger_calc_reg_current(limits, min_uA, max_uA, ®_data);
if (ret)
return ret;
return max14577_update_reg(rdev->regmap, MAX14577_CHG_REG_CHG_CTRL4,
CHGCTRL4_MBCICHWRCL_MASK | CHGCTRL4_MBCICHWRCH_MASK,
reg_data);
}
static const struct regulator_ops max14577_safeout_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_ops max14577_charger_ops = {
.is_enabled = max14577_reg_is_enabled,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_current_limit = max14577_reg_get_current_limit,
.set_current_limit = max14577_reg_set_current_limit,
};
#define MAX14577_SAFEOUT_REG { \
.name = "SAFEOUT", \
.of_match = of_match_ptr("SAFEOUT"), \
.regulators_node = of_match_ptr("regulators"), \
.id = MAX14577_SAFEOUT, \
.ops = &max14577_safeout_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.min_uV = MAX14577_REGULATOR_SAFEOUT_VOLTAGE, \
.enable_reg = MAX14577_REG_CONTROL2, \
.enable_mask = CTRL2_SFOUTORD_MASK, \
}
#define MAX14577_CHARGER_REG { \
.name = "CHARGER", \
.of_match = of_match_ptr("CHARGER"), \
.regulators_node = of_match_ptr("regulators"), \
.id = MAX14577_CHARGER, \
.ops = &max14577_charger_ops, \
.type = REGULATOR_CURRENT, \
.owner = THIS_MODULE, \
.enable_reg = MAX14577_CHG_REG_CHG_CTRL2, \
.enable_mask = CHGCTRL2_MBCHOSTEN_MASK, \
}
static const struct regulator_desc max14577_supported_regulators[] = {
[MAX14577_SAFEOUT] = MAX14577_SAFEOUT_REG,
[MAX14577_CHARGER] = MAX14577_CHARGER_REG,
};
static const struct regulator_ops max77836_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
/* TODO: add .set_suspend_mode */
};
#define MAX77836_LDO_REG(num) { \
.name = "LDO" # num, \
.of_match = of_match_ptr("LDO" # num), \
.regulators_node = of_match_ptr("regulators"), \
.id = MAX77836_LDO ## num, \
.ops = &max77836_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.n_voltages = MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM, \
.min_uV = MAX77836_REGULATOR_LDO_VOLTAGE_MIN, \
.uV_step = MAX77836_REGULATOR_LDO_VOLTAGE_STEP, \
.enable_reg = MAX77836_LDO_REG_CNFG1_LDO ## num, \
.enable_mask = MAX77836_CNFG1_LDO_PWRMD_MASK, \
.vsel_reg = MAX77836_LDO_REG_CNFG1_LDO ## num, \
.vsel_mask = MAX77836_CNFG1_LDO_TV_MASK, \
}
static const struct regulator_desc max77836_supported_regulators[] = {
[MAX14577_SAFEOUT] = MAX14577_SAFEOUT_REG,
[MAX14577_CHARGER] = MAX14577_CHARGER_REG,
[MAX77836_LDO1] = MAX77836_LDO_REG(1),
[MAX77836_LDO2] = MAX77836_LDO_REG(2),
};
/*
* Registers for regulators of max77836 use different I2C slave addresses so
* different regmaps must be used for them.
*
* Returns proper regmap for accessing regulator passed by id.
*/
static struct regmap *max14577_get_regmap(struct max14577 *max14577,
int reg_id)
{
switch (max14577->dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
switch (reg_id) {
case MAX77836_SAFEOUT ... MAX77836_CHARGER:
return max14577->regmap;
default:
/* MAX77836_LDO1 ... MAX77836_LDO2 */
return max14577->regmap_pmic;
}
case MAXIM_DEVICE_TYPE_MAX14577:
default:
return max14577->regmap;
}
}
static int max14577_regulator_probe(struct platform_device *pdev)
{
struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
struct max14577_platform_data *pdata = dev_get_platdata(max14577->dev);
int i, ret = 0;
struct regulator_config config = {};
const struct regulator_desc *supported_regulators;
unsigned int supported_regulators_size;
enum maxim_device_type dev_type = max14577->dev_type;
switch (dev_type) {
case MAXIM_DEVICE_TYPE_MAX77836:
supported_regulators = max77836_supported_regulators;
supported_regulators_size = ARRAY_SIZE(max77836_supported_regulators);
break;
case MAXIM_DEVICE_TYPE_MAX14577:
default:
supported_regulators = max14577_supported_regulators;
supported_regulators_size = ARRAY_SIZE(max14577_supported_regulators);
}
config.dev = max14577->dev;
config.driver_data = max14577;
for (i = 0; i < supported_regulators_size; i++) {
struct regulator_dev *regulator;
/*
* Index of supported_regulators[] is also the id and must
* match index of pdata->regulators[].
*/
if (pdata && pdata->regulators) {
config.init_data = pdata->regulators[i].initdata;
config.of_node = pdata->regulators[i].of_node;
}
config.regmap = max14577_get_regmap(max14577,
supported_regulators[i].id);
regulator = devm_regulator_register(&pdev->dev,
&supported_regulators[i], &config);
if (IS_ERR(regulator)) {
ret = PTR_ERR(regulator);
dev_err(&pdev->dev,
"Regulator init failed for %d/%s with error: %d\n",
i, supported_regulators[i].name, ret);
return ret;
}
}
return ret;
}
static const struct platform_device_id max14577_regulator_id[] = {
{ "max14577-regulator", MAXIM_DEVICE_TYPE_MAX14577, },
{ "max77836-regulator", MAXIM_DEVICE_TYPE_MAX77836, },
{ }
};
MODULE_DEVICE_TABLE(platform, max14577_regulator_id);
static struct platform_driver max14577_regulator_driver = {
.driver = {
.name = "max14577-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max14577_regulator_probe,
.id_table = max14577_regulator_id,
};
static int __init max14577_regulator_init(void)
{
BUILD_BUG_ON(ARRAY_SIZE(max14577_supported_regulators) != MAX14577_REGULATOR_NUM);
BUILD_BUG_ON(ARRAY_SIZE(max77836_supported_regulators) != MAX77836_REGULATOR_NUM);
BUILD_BUG_ON(MAX77836_REGULATOR_LDO_VOLTAGE_MIN +
(MAX77836_REGULATOR_LDO_VOLTAGE_STEP *
(MAX77836_REGULATOR_LDO_VOLTAGE_STEPS_NUM - 1)) !=
MAX77836_REGULATOR_LDO_VOLTAGE_MAX);
return platform_driver_register(&max14577_regulator_driver);
}
subsys_initcall(max14577_regulator_init);
static void __exit max14577_regulator_exit(void)
{
platform_driver_unregister(&max14577_regulator_driver);
}
module_exit(max14577_regulator_exit);
MODULE_AUTHOR("Krzysztof Kozlowski <[email protected]>");
MODULE_DESCRIPTION("Maxim 14577/77836 regulator driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max14577-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
enum fan53880_regulator_ids {
FAN53880_LDO1,
FAN53880_LDO2,
FAN53880_LDO3,
FAN53880_LDO4,
FAN53880_BUCK,
FAN53880_BOOST,
};
enum fan53880_registers {
FAN53880_PRODUCT_ID = 0x00,
FAN53880_SILICON_REV,
FAN53880_BUCKVOUT,
FAN53880_BOOSTVOUT,
FAN53880_LDO1VOUT,
FAN53880_LDO2VOUT,
FAN53880_LDO3VOUT,
FAN53880_LDO4VOUT,
FAN53880_IOUT,
FAN53880_ENABLE,
FAN53880_ENABLE_BOOST,
};
#define FAN53880_ID 0x01
static const struct regulator_ops fan53880_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
#define FAN53880_LDO(_num, _supply, _default) \
[FAN53880_LDO ## _num] = { \
.name = "LDO"#_num, \
.of_match = "LDO"#_num, \
.regulators_node = "regulators", \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.linear_ranges = (struct linear_range[]) { \
REGULATOR_LINEAR_RANGE(_default, 0x0, 0x0, 0), \
REGULATOR_LINEAR_RANGE(800000, 0xf, 0x73, 25000), \
}, \
.n_linear_ranges = 2, \
.n_voltages = 0x74, \
.vsel_reg = FAN53880_LDO ## _num ## VOUT, \
.vsel_mask = 0x7f, \
.enable_reg = FAN53880_ENABLE, \
.enable_mask = BIT(_num - 1), \
.enable_time = 150, \
.supply_name = _supply, \
.ops = &fan53880_ops, \
}
static const struct regulator_desc fan53880_regulators[] = {
FAN53880_LDO(1, "VIN12", 2800000),
FAN53880_LDO(2, "VIN12", 2800000),
FAN53880_LDO(3, "VIN3", 1800000),
FAN53880_LDO(4, "VIN4", 1800000),
[FAN53880_BUCK] = {
.name = "BUCK",
.of_match = "BUCK",
.regulators_node = "regulators",
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.linear_ranges = (struct linear_range[]) {
REGULATOR_LINEAR_RANGE(1100000, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(600000, 0x1f, 0xf7, 12500),
},
.n_linear_ranges = 2,
.n_voltages = 0xf8,
.vsel_reg = FAN53880_BUCKVOUT,
.vsel_mask = 0xff,
.enable_reg = FAN53880_ENABLE,
.enable_mask = 0x10,
.enable_time = 480,
.supply_name = "PVIN",
.ops = &fan53880_ops,
},
[FAN53880_BOOST] = {
.name = "BOOST",
.of_match = "BOOST",
.regulators_node = "regulators",
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.linear_ranges = (struct linear_range[]) {
REGULATOR_LINEAR_RANGE(5000000, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(3000000, 0x4, 0x70, 25000),
},
.n_linear_ranges = 2,
.n_voltages = 0x71,
.vsel_reg = FAN53880_BOOSTVOUT,
.vsel_mask = 0x7f,
.enable_reg = FAN53880_ENABLE_BOOST,
.enable_mask = 0xff,
.enable_time = 580,
.supply_name = "PVIN",
.ops = &fan53880_ops,
},
};
static const struct regmap_config fan53880_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = FAN53880_ENABLE_BOOST,
};
static int fan53880_i2c_probe(struct i2c_client *i2c)
{
struct regulator_config config = { };
struct regulator_dev *rdev;
struct regmap *regmap;
int i, ret;
unsigned int data;
regmap = devm_regmap_init_i2c(i2c, &fan53880_regmap);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);
return ret;
}
ret = regmap_read(regmap, FAN53880_PRODUCT_ID, &data);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to read PRODUCT_ID: %d\n", ret);
return ret;
}
if (data != FAN53880_ID) {
dev_err(&i2c->dev, "Unsupported device id: 0x%x.\n", data);
return -ENODEV;
}
config.dev = &i2c->dev;
config.init_data = NULL;
for (i = 0; i < ARRAY_SIZE(fan53880_regulators); i++) {
rdev = devm_regulator_register(&i2c->dev,
&fan53880_regulators[i],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&i2c->dev, "Failed to register %s: %d\n",
fan53880_regulators[i].name, ret);
return ret;
}
}
return 0;
}
static const struct of_device_id fan53880_dt_ids[] = {
{ .compatible = "onnn,fan53880", },
{}
};
MODULE_DEVICE_TABLE(of, fan53880_dt_ids);
static const struct i2c_device_id fan53880_i2c_id[] = {
{ "fan53880", },
{}
};
MODULE_DEVICE_TABLE(i2c, fan53880_i2c_id);
static struct i2c_driver fan53880_regulator_driver = {
.driver = {
.name = "fan53880",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = fan53880_dt_ids,
},
.probe = fan53880_i2c_probe,
.id_table = fan53880_i2c_id,
};
module_i2c_driver(fan53880_regulator_driver);
MODULE_DESCRIPTION("FAN53880 PMIC voltage regulator driver");
MODULE_AUTHOR("Christoph Fritz <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/fan53880.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for tps65090 power management chip.
*
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/tps65090.h>
#define MAX_CTRL_READ_TRIES 5
#define MAX_FET_ENABLE_TRIES 1000
#define CTRL_EN_BIT 0 /* Regulator enable bit, active high */
#define CTRL_WT_BIT 2 /* Regulator wait time 0 bit */
#define CTRL_PG_BIT 4 /* Regulator power good bit, 1=good */
#define CTRL_TO_BIT 7 /* Regulator timeout bit, 1=wait */
#define MAX_OVERCURRENT_WAIT 3 /* Overcurrent wait must be <= this */
/**
* struct tps65090_regulator - Per-regulator data for a tps65090 regulator
*
* @dev: Pointer to our device.
* @desc: The struct regulator_desc for the regulator.
* @rdev: The struct regulator_dev for the regulator.
* @overcurrent_wait_valid: True if overcurrent_wait is valid.
* @overcurrent_wait: For FETs, the value to put in the WTFET bitfield.
*/
struct tps65090_regulator {
struct device *dev;
struct regulator_desc *desc;
struct regulator_dev *rdev;
bool overcurrent_wait_valid;
int overcurrent_wait;
};
static const struct regulator_ops tps65090_ext_control_ops = {
};
/**
* tps65090_reg_set_overcurrent_wait - Setup overcurrent wait
*
* This will set the overcurrent wait time based on what's in the regulator
* info.
*
* @ri: Overall regulator data
* @rdev: Regulator device
*
* Return: 0 if no error, non-zero if there was an error writing the register.
*/
static int tps65090_reg_set_overcurrent_wait(struct tps65090_regulator *ri,
struct regulator_dev *rdev)
{
int ret;
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
MAX_OVERCURRENT_WAIT << CTRL_WT_BIT,
ri->overcurrent_wait << CTRL_WT_BIT);
if (ret) {
dev_err(&rdev->dev, "Error updating overcurrent wait %#x\n",
rdev->desc->enable_reg);
}
return ret;
}
/**
* tps65090_try_enable_fet - Try to enable a FET
*
* @rdev: Regulator device
*
* Return: 0 if ok, -ENOTRECOVERABLE if the FET power good bit did not get
* set, or some other -ve value if another error occurred (e.g. i2c error)
*/
static int tps65090_try_enable_fet(struct regulator_dev *rdev)
{
unsigned int control;
int ret, i;
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
rdev->desc->enable_mask);
if (ret < 0) {
dev_err(&rdev->dev, "Error in updating reg %#x\n",
rdev->desc->enable_reg);
return ret;
}
for (i = 0; i < MAX_CTRL_READ_TRIES; i++) {
ret = regmap_read(rdev->regmap, rdev->desc->enable_reg,
&control);
if (ret < 0)
return ret;
if (!(control & BIT(CTRL_TO_BIT)))
break;
usleep_range(1000, 1500);
}
if (!(control & BIT(CTRL_PG_BIT)))
return -ENOTRECOVERABLE;
return 0;
}
/**
* tps65090_fet_enable - Enable a FET, trying a few times if it fails
*
* Some versions of the tps65090 have issues when turning on the FETs.
* This function goes through several steps to ensure the best chance of the
* FET going on. Specifically:
* - We'll make sure that we bump the "overcurrent wait" to the maximum, which
* increases the chances that we'll turn on properly.
* - We'll retry turning the FET on multiple times (turning off in between).
*
* @rdev: Regulator device
*
* Return: 0 if ok, non-zero if it fails.
*/
static int tps65090_fet_enable(struct regulator_dev *rdev)
{
int ret, tries;
/*
* Try enabling multiple times until we succeed since sometimes the
* first try times out.
*/
tries = 0;
while (true) {
ret = tps65090_try_enable_fet(rdev);
if (!ret)
break;
if (ret != -ENOTRECOVERABLE || tries == MAX_FET_ENABLE_TRIES)
goto err;
/* Try turning the FET off (and then on again) */
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, 0);
if (ret)
goto err;
tries++;
}
if (tries)
dev_warn(&rdev->dev, "reg %#x enable ok after %d tries\n",
rdev->desc->enable_reg, tries);
return 0;
err:
dev_warn(&rdev->dev, "reg %#x enable failed\n", rdev->desc->enable_reg);
WARN_ON(1);
return ret;
}
static const struct regulator_ops tps65090_reg_control_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops tps65090_fet_control_ops = {
.enable = tps65090_fet_enable,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops tps65090_ldo_ops = {
};
#define tps65090_REG_DESC(_id, _sname, _en_reg, _en_bits, _nvolt, _volt, _ops) \
{ \
.name = "TPS65090_RAILS"#_id, \
.supply_name = _sname, \
.id = TPS65090_REGULATOR_##_id, \
.n_voltages = _nvolt, \
.ops = &_ops, \
.fixed_uV = _volt, \
.enable_reg = _en_reg, \
.enable_val = _en_bits, \
.enable_mask = _en_bits, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
#define tps65090_REG_FIXEDV(_id, _sname, en_reg, _en_bits, _volt, _ops) \
tps65090_REG_DESC(_id, _sname, en_reg, _en_bits, 1, _volt, _ops)
#define tps65090_REG_SWITCH(_id, _sname, en_reg, _en_bits, _ops) \
tps65090_REG_DESC(_id, _sname, en_reg, _en_bits, 0, 0, _ops)
static struct regulator_desc tps65090_regulator_desc[] = {
tps65090_REG_FIXEDV(DCDC1, "vsys1", 0x0C, BIT(CTRL_EN_BIT), 5000000,
tps65090_reg_control_ops),
tps65090_REG_FIXEDV(DCDC2, "vsys2", 0x0D, BIT(CTRL_EN_BIT), 3300000,
tps65090_reg_control_ops),
tps65090_REG_SWITCH(DCDC3, "vsys3", 0x0E, BIT(CTRL_EN_BIT),
tps65090_reg_control_ops),
tps65090_REG_SWITCH(FET1, "infet1", 0x0F,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET2, "infet2", 0x10,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET3, "infet3", 0x11,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET4, "infet4", 0x12,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET5, "infet5", 0x13,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET6, "infet6", 0x14,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_SWITCH(FET7, "infet7", 0x15,
BIT(CTRL_EN_BIT) | BIT(CTRL_PG_BIT),
tps65090_fet_control_ops),
tps65090_REG_FIXEDV(LDO1, "vsys-l1", 0, 0, 5000000,
tps65090_ldo_ops),
tps65090_REG_FIXEDV(LDO2, "vsys-l2", 0, 0, 3300000,
tps65090_ldo_ops),
};
static inline bool is_dcdc(int id)
{
switch (id) {
case TPS65090_REGULATOR_DCDC1:
case TPS65090_REGULATOR_DCDC2:
case TPS65090_REGULATOR_DCDC3:
return true;
default:
return false;
}
}
static int tps65090_config_ext_control(
struct tps65090_regulator *ri, bool enable)
{
int ret;
struct device *parent = ri->dev->parent;
unsigned int reg_en_reg = ri->desc->enable_reg;
if (enable)
ret = tps65090_set_bits(parent, reg_en_reg, 1);
else
ret = tps65090_clr_bits(parent, reg_en_reg, 1);
if (ret < 0)
dev_err(ri->dev, "Error in updating reg 0x%x\n", reg_en_reg);
return ret;
}
static int tps65090_regulator_disable_ext_control(
struct tps65090_regulator *ri,
struct tps65090_regulator_plat_data *tps_pdata)
{
int ret = 0;
struct device *parent = ri->dev->parent;
unsigned int reg_en_reg = ri->desc->enable_reg;
/*
* First enable output for internal control if require.
* And then disable external control.
*/
if (tps_pdata->reg_init_data->constraints.always_on ||
tps_pdata->reg_init_data->constraints.boot_on) {
ret = tps65090_set_bits(parent, reg_en_reg, 0);
if (ret < 0) {
dev_err(ri->dev, "Error in set reg 0x%x\n", reg_en_reg);
return ret;
}
}
return tps65090_config_ext_control(ri, false);
}
#ifdef CONFIG_OF
static struct of_regulator_match tps65090_matches[] = {
{ .name = "dcdc1", },
{ .name = "dcdc2", },
{ .name = "dcdc3", },
{ .name = "fet1", },
{ .name = "fet2", },
{ .name = "fet3", },
{ .name = "fet4", },
{ .name = "fet5", },
{ .name = "fet6", },
{ .name = "fet7", },
{ .name = "ldo1", },
{ .name = "ldo2", },
};
static struct tps65090_platform_data *tps65090_parse_dt_reg_data(
struct platform_device *pdev,
struct of_regulator_match **tps65090_reg_matches)
{
struct tps65090_platform_data *tps65090_pdata;
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
int idx = 0, ret;
struct tps65090_regulator_plat_data *reg_pdata;
tps65090_pdata = devm_kzalloc(&pdev->dev, sizeof(*tps65090_pdata),
GFP_KERNEL);
if (!tps65090_pdata)
return ERR_PTR(-ENOMEM);
reg_pdata = devm_kcalloc(&pdev->dev,
TPS65090_REGULATOR_MAX, sizeof(*reg_pdata),
GFP_KERNEL);
if (!reg_pdata)
return ERR_PTR(-ENOMEM);
regulators = of_get_child_by_name(np, "regulators");
if (!regulators) {
dev_err(&pdev->dev, "regulator node not found\n");
return ERR_PTR(-ENODEV);
}
ret = of_regulator_match(&pdev->dev, regulators, tps65090_matches,
ARRAY_SIZE(tps65090_matches));
of_node_put(regulators);
if (ret < 0) {
dev_err(&pdev->dev,
"Error parsing regulator init data: %d\n", ret);
return ERR_PTR(ret);
}
*tps65090_reg_matches = tps65090_matches;
for (idx = 0; idx < ARRAY_SIZE(tps65090_matches); idx++) {
struct regulator_init_data *ri_data;
struct tps65090_regulator_plat_data *rpdata;
struct device_node *np;
rpdata = ®_pdata[idx];
ri_data = tps65090_matches[idx].init_data;
if (!ri_data)
continue;
np = tps65090_matches[idx].of_node;
if (!np)
continue;
rpdata->reg_init_data = ri_data;
rpdata->enable_ext_control = of_property_read_bool(np,
"ti,enable-ext-control");
if (rpdata->enable_ext_control) {
enum gpiod_flags gflags;
if (ri_data->constraints.always_on ||
ri_data->constraints.boot_on)
gflags = GPIOD_OUT_HIGH;
else
gflags = GPIOD_OUT_LOW;
gflags |= GPIOD_FLAGS_BIT_NONEXCLUSIVE;
rpdata->gpiod = devm_fwnode_gpiod_get(
&pdev->dev,
of_fwnode_handle(np),
"dcdc-ext-control",
gflags,
"tps65090");
if (PTR_ERR(rpdata->gpiod) == -ENOENT) {
dev_err(&pdev->dev,
"could not find DCDC external control GPIO\n");
rpdata->gpiod = NULL;
} else if (IS_ERR(rpdata->gpiod))
return ERR_CAST(rpdata->gpiod);
}
if (of_property_read_u32(np, "ti,overcurrent-wait",
&rpdata->overcurrent_wait) == 0)
rpdata->overcurrent_wait_valid = true;
tps65090_pdata->reg_pdata[idx] = rpdata;
}
return tps65090_pdata;
}
#else
static inline struct tps65090_platform_data *tps65090_parse_dt_reg_data(
struct platform_device *pdev,
struct of_regulator_match **tps65090_reg_matches)
{
*tps65090_reg_matches = NULL;
return NULL;
}
#endif
static int tps65090_regulator_probe(struct platform_device *pdev)
{
struct tps65090 *tps65090_mfd = dev_get_drvdata(pdev->dev.parent);
struct tps65090_regulator *ri = NULL;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct tps65090_regulator_plat_data *tps_pdata;
struct tps65090_regulator *pmic;
struct tps65090_platform_data *tps65090_pdata;
struct of_regulator_match *tps65090_reg_matches = NULL;
int num;
int ret;
dev_dbg(&pdev->dev, "Probing regulator\n");
tps65090_pdata = dev_get_platdata(pdev->dev.parent);
if (!tps65090_pdata && tps65090_mfd->dev->of_node)
tps65090_pdata = tps65090_parse_dt_reg_data(pdev,
&tps65090_reg_matches);
if (IS_ERR_OR_NULL(tps65090_pdata)) {
dev_err(&pdev->dev, "Platform data missing\n");
return tps65090_pdata ? PTR_ERR(tps65090_pdata) : -EINVAL;
}
pmic = devm_kcalloc(&pdev->dev,
TPS65090_REGULATOR_MAX, sizeof(*pmic),
GFP_KERNEL);
if (!pmic)
return -ENOMEM;
for (num = 0; num < TPS65090_REGULATOR_MAX; num++) {
tps_pdata = tps65090_pdata->reg_pdata[num];
ri = &pmic[num];
ri->dev = &pdev->dev;
ri->desc = &tps65090_regulator_desc[num];
if (tps_pdata) {
ri->overcurrent_wait_valid =
tps_pdata->overcurrent_wait_valid;
ri->overcurrent_wait = tps_pdata->overcurrent_wait;
}
/*
* TPS5090 DCDC support the control from external digital input.
* Configure it as per platform data.
*/
if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data) {
if (tps_pdata->enable_ext_control) {
config.ena_gpiod = tps_pdata->gpiod;
ri->desc->ops = &tps65090_ext_control_ops;
} else {
ret = tps65090_regulator_disable_ext_control(
ri, tps_pdata);
if (ret < 0) {
dev_err(&pdev->dev,
"failed disable ext control\n");
return ret;
}
}
}
config.dev = pdev->dev.parent;
config.driver_data = ri;
config.regmap = tps65090_mfd->rmap;
if (tps_pdata)
config.init_data = tps_pdata->reg_init_data;
else
config.init_data = NULL;
if (tps65090_reg_matches)
config.of_node = tps65090_reg_matches[num].of_node;
else
config.of_node = NULL;
/*
* Hand the GPIO descriptor management over to the regulator
* core, remove it from devres management.
*/
if (config.ena_gpiod)
devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod);
rdev = devm_regulator_register(&pdev->dev, ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
ri->desc->name);
return PTR_ERR(rdev);
}
ri->rdev = rdev;
if (ri->overcurrent_wait_valid) {
ret = tps65090_reg_set_overcurrent_wait(ri, rdev);
if (ret < 0)
return ret;
}
/* Enable external control if it is require */
if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data &&
tps_pdata->enable_ext_control) {
ret = tps65090_config_ext_control(ri, true);
if (ret < 0)
return ret;
}
}
platform_set_drvdata(pdev, pmic);
return 0;
}
static struct platform_driver tps65090_regulator_driver = {
.driver = {
.name = "tps65090-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65090_regulator_probe,
};
static int __init tps65090_regulator_init(void)
{
return platform_driver_register(&tps65090_regulator_driver);
}
subsys_initcall(tps65090_regulator_init);
static void __exit tps65090_regulator_exit(void)
{
platform_driver_unregister(&tps65090_regulator_driver);
}
module_exit(tps65090_regulator_exit);
MODULE_DESCRIPTION("tps65090 regulator driver");
MODULE_AUTHOR("Venu Byravarasu <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tps65090-pmic");
| linux-master | drivers/regulator/tps65090-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#define RTMV20_REG_DEVINFO 0x00
#define RTMV20_REG_PULSEDELAY 0x01
#define RTMV20_REG_PULSEWIDTH 0x03
#define RTMV20_REG_LDCTRL1 0x05
#define RTMV20_REG_ESPULSEWIDTH 0x06
#define RTMV20_REG_ESLDCTRL1 0x08
#define RTMV20_REG_LBP 0x0A
#define RTMV20_REG_LDCTRL2 0x0B
#define RTMV20_REG_FSIN1CTRL1 0x0D
#define RTMV20_REG_FSIN1CTRL3 0x0F
#define RTMV20_REG_FSIN2CTRL1 0x10
#define RTMV20_REG_FSIN2CTRL3 0x12
#define RTMV20_REG_ENCTRL 0x13
#define RTMV20_REG_STRBVSYNDLYL 0x29
#define RTMV20_REG_LDIRQ 0x30
#define RTMV20_REG_LDSTAT 0x40
#define RTMV20_REG_LDMASK 0x50
#define RTMV20_MAX_REGS (RTMV20_REG_LDMASK + 1)
#define RTMV20_VID_MASK GENMASK(7, 4)
#define RICHTEK_VID 0x80
#define RTMV20_LDCURR_MASK GENMASK(7, 0)
#define RTMV20_DELAY_MASK GENMASK(9, 0)
#define RTMV20_WIDTH_MASK GENMASK(13, 0)
#define RTMV20_WIDTH2_MASK GENMASK(7, 0)
#define RTMV20_LBPLVL_MASK GENMASK(3, 0)
#define RTMV20_LBPEN_MASK BIT(7)
#define RTMV20_STROBEPOL_MASK BIT(0)
#define RTMV20_VSYNPOL_MASK BIT(1)
#define RTMV20_FSINEN_MASK BIT(7)
#define RTMV20_ESEN_MASK BIT(6)
#define RTMV20_FSINOUT_MASK BIT(2)
#define LDENABLE_MASK (BIT(3) | BIT(0))
#define OTPEVT_MASK BIT(4)
#define SHORTEVT_MASK BIT(3)
#define OPENEVT_MASK BIT(2)
#define LBPEVT_MASK BIT(1)
#define OCPEVT_MASK BIT(0)
#define FAILEVT_MASK (SHORTEVT_MASK | OPENEVT_MASK | LBPEVT_MASK)
#define RTMV20_LSW_MINUA 0
#define RTMV20_LSW_MAXUA 6000000
#define RTMV20_LSW_STEPUA 30000
#define RTMV20_LSW_DEFAULTUA 3000000
#define RTMV20_I2CRDY_TIMEUS 200
#define RTMV20_CSRDY_TIMEUS 2000
struct rtmv20_priv {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *enable_gpio;
struct regulator_dev *rdev;
};
static int rtmv20_lsw_enable(struct regulator_dev *rdev)
{
struct rtmv20_priv *priv = rdev_get_drvdata(rdev);
int ret;
gpiod_set_value(priv->enable_gpio, 1);
/* Wait for I2C can be accessed */
usleep_range(RTMV20_I2CRDY_TIMEUS, RTMV20_I2CRDY_TIMEUS + 100);
/* HW re-enable, disable cache only and sync regcache here */
regcache_cache_only(priv->regmap, false);
ret = regcache_sync(priv->regmap);
if (ret)
return ret;
return regulator_enable_regmap(rdev);
}
static int rtmv20_lsw_disable(struct regulator_dev *rdev)
{
struct rtmv20_priv *priv = rdev_get_drvdata(rdev);
int ret;
ret = regulator_disable_regmap(rdev);
if (ret)
return ret;
/* Mark the regcache as dirty and cache only before HW disabled */
regcache_cache_only(priv->regmap, true);
regcache_mark_dirty(priv->regmap);
gpiod_set_value(priv->enable_gpio, 0);
return 0;
}
static int rtmv20_lsw_set_current_limit(struct regulator_dev *rdev, int min_uA,
int max_uA)
{
int sel;
if (min_uA > RTMV20_LSW_MAXUA || max_uA < RTMV20_LSW_MINUA)
return -EINVAL;
if (max_uA > RTMV20_LSW_MAXUA)
max_uA = RTMV20_LSW_MAXUA;
sel = (max_uA - RTMV20_LSW_MINUA) / RTMV20_LSW_STEPUA;
/* Ensure the selected setting is still in range */
if ((sel * RTMV20_LSW_STEPUA + RTMV20_LSW_MINUA) < min_uA)
return -EINVAL;
sel <<= ffs(rdev->desc->csel_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->csel_reg,
rdev->desc->csel_mask, sel);
}
static int rtmv20_lsw_get_current_limit(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->csel_reg, &val);
if (ret)
return ret;
val &= rdev->desc->csel_mask;
val >>= ffs(rdev->desc->csel_mask) - 1;
return val * RTMV20_LSW_STEPUA + RTMV20_LSW_MINUA;
}
static const struct regulator_ops rtmv20_regulator_ops = {
.set_current_limit = rtmv20_lsw_set_current_limit,
.get_current_limit = rtmv20_lsw_get_current_limit,
.enable = rtmv20_lsw_enable,
.disable = rtmv20_lsw_disable,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc rtmv20_lsw_desc = {
.name = "rtmv20,lsw",
.of_match = of_match_ptr("lsw"),
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
.ops = &rtmv20_regulator_ops,
.csel_reg = RTMV20_REG_LDCTRL1,
.csel_mask = RTMV20_LDCURR_MASK,
.enable_reg = RTMV20_REG_ENCTRL,
.enable_mask = LDENABLE_MASK,
.enable_time = RTMV20_CSRDY_TIMEUS,
};
static irqreturn_t rtmv20_irq_handler(int irq, void *data)
{
struct rtmv20_priv *priv = data;
unsigned int val;
int ret;
ret = regmap_read(priv->regmap, RTMV20_REG_LDIRQ, &val);
if (ret) {
dev_err(priv->dev, "Failed to get irq flags\n");
return IRQ_NONE;
}
if (val & OTPEVT_MASK)
regulator_notifier_call_chain(priv->rdev, REGULATOR_EVENT_OVER_TEMP, NULL);
if (val & OCPEVT_MASK)
regulator_notifier_call_chain(priv->rdev, REGULATOR_EVENT_OVER_CURRENT, NULL);
if (val & FAILEVT_MASK)
regulator_notifier_call_chain(priv->rdev, REGULATOR_EVENT_FAIL, NULL);
return IRQ_HANDLED;
}
static u32 clamp_to_selector(u32 val, u32 min, u32 max, u32 step)
{
u32 retval = clamp_val(val, min, max);
return (retval - min) / step;
}
static int rtmv20_properties_init(struct rtmv20_priv *priv)
{
const struct {
const char *name;
u32 def;
u32 min;
u32 max;
u32 step;
u32 addr;
u32 mask;
} props[] = {
{ "richtek,ld-pulse-delay-us", 0, 0, 100000, 100, RTMV20_REG_PULSEDELAY,
RTMV20_DELAY_MASK },
{ "richtek,ld-pulse-width-us", 1200, 0, 10000, 1, RTMV20_REG_PULSEWIDTH,
RTMV20_WIDTH_MASK },
{ "richtek,fsin1-delay-us", 23000, 0, 100000, 100, RTMV20_REG_FSIN1CTRL1,
RTMV20_DELAY_MASK },
{ "richtek,fsin1-width-us", 160, 40, 10000, 40, RTMV20_REG_FSIN1CTRL3,
RTMV20_WIDTH2_MASK },
{ "richtek,fsin2-delay-us", 23000, 0, 100000, 100, RTMV20_REG_FSIN2CTRL1,
RTMV20_DELAY_MASK },
{ "richtek,fsin2-width-us", 160, 40, 10000, 40, RTMV20_REG_FSIN2CTRL3,
RTMV20_WIDTH2_MASK },
{ "richtek,es-pulse-width-us", 1200, 0, 10000, 1, RTMV20_REG_ESPULSEWIDTH,
RTMV20_WIDTH_MASK },
{ "richtek,es-ld-current-microamp", 3000000, 0, 6000000, 30000,
RTMV20_REG_ESLDCTRL1, RTMV20_LDCURR_MASK },
{ "richtek,lbp-level-microvolt", 2700000, 2400000, 3700000, 100000, RTMV20_REG_LBP,
RTMV20_LBPLVL_MASK },
{ "richtek,lbp-enable", 0, 0, 1, 1, RTMV20_REG_LBP, RTMV20_LBPEN_MASK },
{ "richtek,strobe-polarity-high", 1, 0, 1, 1, RTMV20_REG_LDCTRL2,
RTMV20_STROBEPOL_MASK },
{ "richtek,vsync-polarity-high", 1, 0, 1, 1, RTMV20_REG_LDCTRL2,
RTMV20_VSYNPOL_MASK },
{ "richtek,fsin-enable", 0, 0, 1, 1, RTMV20_REG_ENCTRL, RTMV20_FSINEN_MASK },
{ "richtek,fsin-output", 0, 0, 1, 1, RTMV20_REG_ENCTRL, RTMV20_FSINOUT_MASK },
{ "richtek,es-enable", 0, 0, 1, 1, RTMV20_REG_ENCTRL, RTMV20_ESEN_MASK },
};
int i, ret;
for (i = 0; i < ARRAY_SIZE(props); i++) {
__be16 bval16;
u16 val16;
u32 temp;
int significant_bit = fls(props[i].mask);
int shift = ffs(props[i].mask) - 1;
if (props[i].max > 1) {
ret = device_property_read_u32(priv->dev, props[i].name, &temp);
if (ret)
temp = props[i].def;
} else
temp = device_property_read_bool(priv->dev, props[i].name);
temp = clamp_to_selector(temp, props[i].min, props[i].max, props[i].step);
/* If significant bit is over 8, two byte access, others one */
if (significant_bit > 8) {
ret = regmap_raw_read(priv->regmap, props[i].addr, &bval16, sizeof(bval16));
if (ret)
return ret;
val16 = be16_to_cpu(bval16);
val16 &= ~props[i].mask;
val16 |= (temp << shift);
bval16 = cpu_to_be16(val16);
ret = regmap_raw_write(priv->regmap, props[i].addr, &bval16,
sizeof(bval16));
} else {
ret = regmap_update_bits(priv->regmap, props[i].addr, props[i].mask,
temp << shift);
}
if (ret)
return ret;
}
return 0;
}
static int rtmv20_check_chip_exist(struct rtmv20_priv *priv)
{
unsigned int val;
int ret;
ret = regmap_read(priv->regmap, RTMV20_REG_DEVINFO, &val);
if (ret)
return ret;
if ((val & RTMV20_VID_MASK) != RICHTEK_VID)
return -ENODEV;
return 0;
}
static bool rtmv20_is_accessible_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case RTMV20_REG_DEVINFO ... RTMV20_REG_STRBVSYNDLYL:
case RTMV20_REG_LDIRQ:
case RTMV20_REG_LDSTAT:
case RTMV20_REG_LDMASK:
return true;
}
return false;
}
static bool rtmv20_is_volatile_reg(struct device *dev, unsigned int reg)
{
if (reg == RTMV20_REG_LDIRQ || reg == RTMV20_REG_LDSTAT)
return true;
return false;
}
static const struct regmap_config rtmv20_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.max_register = RTMV20_REG_LDMASK,
.num_reg_defaults_raw = RTMV20_MAX_REGS,
.writeable_reg = rtmv20_is_accessible_reg,
.readable_reg = rtmv20_is_accessible_reg,
.volatile_reg = rtmv20_is_volatile_reg,
};
static int rtmv20_probe(struct i2c_client *i2c)
{
struct rtmv20_priv *priv;
struct regulator_config config = {};
int ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = &i2c->dev;
/* Before regmap register, configure HW enable to make I2C accessible */
priv->enable_gpio = devm_gpiod_get(&i2c->dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(priv->enable_gpio)) {
dev_err(&i2c->dev, "Failed to get enable gpio\n");
return PTR_ERR(priv->enable_gpio);
}
/* Wait for I2C can be accessed */
usleep_range(RTMV20_I2CRDY_TIMEUS, RTMV20_I2CRDY_TIMEUS + 100);
priv->regmap = devm_regmap_init_i2c(i2c, &rtmv20_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(&i2c->dev, "Failed to allocate register map\n");
return PTR_ERR(priv->regmap);
}
ret = rtmv20_check_chip_exist(priv);
if (ret) {
dev_err(&i2c->dev, "Chip vendor info is not matched\n");
return ret;
}
ret = rtmv20_properties_init(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to init properties\n");
return ret;
}
/*
* keep in shutdown mode to minimize the current consumption
* and also mark regcache as dirty
*/
regcache_cache_only(priv->regmap, true);
regcache_mark_dirty(priv->regmap);
gpiod_set_value(priv->enable_gpio, 0);
config.dev = &i2c->dev;
config.regmap = priv->regmap;
config.driver_data = priv;
priv->rdev = devm_regulator_register(&i2c->dev, &rtmv20_lsw_desc, &config);
if (IS_ERR(priv->rdev)) {
dev_err(&i2c->dev, "Failed to register regulator\n");
return PTR_ERR(priv->rdev);
}
/* Unmask all events before IRQ registered */
ret = regmap_write(priv->regmap, RTMV20_REG_LDMASK, 0);
if (ret)
return ret;
return devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, rtmv20_irq_handler,
IRQF_ONESHOT, dev_name(&i2c->dev), priv);
}
static int __maybe_unused rtmv20_suspend(struct device *dev)
{
struct i2c_client *i2c = to_i2c_client(dev);
/*
* When system suspend, disable irq to prevent interrupt trigger
* during I2C bus suspend
*/
disable_irq(i2c->irq);
if (device_may_wakeup(dev))
enable_irq_wake(i2c->irq);
return 0;
}
static int __maybe_unused rtmv20_resume(struct device *dev)
{
struct i2c_client *i2c = to_i2c_client(dev);
/* Enable irq after I2C bus already resume */
enable_irq(i2c->irq);
if (device_may_wakeup(dev))
disable_irq_wake(i2c->irq);
return 0;
}
static SIMPLE_DEV_PM_OPS(rtmv20_pm, rtmv20_suspend, rtmv20_resume);
static const struct of_device_id __maybe_unused rtmv20_of_id[] = {
{ .compatible = "richtek,rtmv20", },
{}
};
MODULE_DEVICE_TABLE(of, rtmv20_of_id);
static struct i2c_driver rtmv20_driver = {
.driver = {
.name = "rtmv20",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(rtmv20_of_id),
.pm = &rtmv20_pm,
},
.probe = rtmv20_probe,
};
module_i2c_driver(rtmv20_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_DESCRIPTION("Richtek RTMV20 Regulator Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rtmv20-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// Functions to access SY3686A power management chip voltages
//
// Copyright (C) 2019 reMarkable AS - http://www.remarkable.com/
//
// Authors: Lars Ivar Miljeteig <[email protected]>
// Alistair Francis <[email protected]>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/mfd/sy7636a.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
struct sy7636a_data {
struct regmap *regmap;
struct gpio_desc *pgood_gpio;
};
static int sy7636a_get_vcom_voltage_op(struct regulator_dev *rdev)
{
int ret;
unsigned int val, val_h;
ret = regmap_read(rdev->regmap, SY7636A_REG_VCOM_ADJUST_CTRL_L, &val);
if (ret)
return ret;
ret = regmap_read(rdev->regmap, SY7636A_REG_VCOM_ADJUST_CTRL_H, &val_h);
if (ret)
return ret;
val |= (val_h << VCOM_ADJUST_CTRL_SHIFT);
return (val & VCOM_ADJUST_CTRL_MASK) * VCOM_ADJUST_CTRL_SCAL;
}
static int sy7636a_get_status(struct regulator_dev *rdev)
{
struct sy7636a_data *data = dev_get_drvdata(rdev->dev.parent);
int ret = 0;
ret = gpiod_get_value_cansleep(data->pgood_gpio);
if (ret < 0)
dev_err(&rdev->dev, "Failed to read pgood gpio: %d\n", ret);
return ret;
}
static const struct regulator_ops sy7636a_vcom_volt_ops = {
.get_voltage = sy7636a_get_vcom_voltage_op,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = sy7636a_get_status,
};
static const struct regulator_desc desc = {
.name = "vcom",
.id = 0,
.ops = &sy7636a_vcom_volt_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.enable_reg = SY7636A_REG_OPERATION_MODE_CRL,
.enable_mask = SY7636A_OPERATION_MODE_CRL_ONOFF,
.regulators_node = of_match_ptr("regulators"),
.of_match = of_match_ptr("vcom"),
};
static int sy7636a_regulator_probe(struct platform_device *pdev)
{
struct regmap *regmap = dev_get_regmap(pdev->dev.parent, NULL);
struct regulator_config config = { };
struct regulator_dev *rdev;
struct gpio_desc *gdp;
struct sy7636a_data *data;
int ret;
if (!regmap)
return -EPROBE_DEFER;
gdp = devm_gpiod_get(pdev->dev.parent, "epd-pwr-good", GPIOD_IN);
if (IS_ERR(gdp)) {
dev_err(pdev->dev.parent, "Power good GPIO fault %ld\n", PTR_ERR(gdp));
return PTR_ERR(gdp);
}
data = devm_kzalloc(&pdev->dev, sizeof(struct sy7636a_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->regmap = regmap;
data->pgood_gpio = gdp;
platform_set_drvdata(pdev, data);
ret = regmap_write(regmap, SY7636A_REG_POWER_ON_DELAY_TIME, 0x0);
if (ret) {
dev_err(pdev->dev.parent, "Failed to initialize regulator: %d\n", ret);
return ret;
}
config.dev = &pdev->dev;
config.dev->of_node = pdev->dev.parent->of_node;
config.regmap = regmap;
rdev = devm_regulator_register(&pdev->dev, &desc, &config);
if (IS_ERR(rdev)) {
dev_err(pdev->dev.parent, "Failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
return 0;
}
static const struct platform_device_id sy7636a_regulator_id_table[] = {
{ "sy7636a-regulator", },
{ }
};
MODULE_DEVICE_TABLE(platform, sy7636a_regulator_id_table);
static struct platform_driver sy7636a_regulator_driver = {
.driver = {
.name = "sy7636a-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = sy7636a_regulator_probe,
.id_table = sy7636a_regulator_id_table,
};
module_platform_driver(sy7636a_regulator_driver);
MODULE_AUTHOR("Lars Ivar Miljeteig <[email protected]>");
MODULE_DESCRIPTION("SY7636A voltage regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/sy7636a-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for STw4810/STw4811 VMMC regulator.
*
* Copyright (C) 2013 ST-Ericsson SA
* Written on behalf of Linaro for ST-Ericsson
*
* Author: Linus Walleij <[email protected]>
*/
#include <linux/err.h>
#include <linux/init.h>
#include <linux/mfd/stw481x.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
static const unsigned int stw481x_vmmc_voltages[] = {
1800000,
1800000,
2850000,
3000000,
1850000,
2600000,
2700000,
3300000,
};
static const struct regulator_ops stw481x_vmmc_ops = {
.list_voltage = regulator_list_voltage_table,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_desc vmmc_regulator = {
.name = "VMMC",
.id = 0,
.ops = &stw481x_vmmc_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = ARRAY_SIZE(stw481x_vmmc_voltages),
.volt_table = stw481x_vmmc_voltages,
.enable_time = 200, /* FIXME: look this up */
.enable_reg = STW_CONF1,
.enable_mask = STW_CONF1_PDN_VMMC | STW_CONF1_MMC_LS_STATUS,
.enable_val = STW_CONF1_PDN_VMMC,
.vsel_reg = STW_CONF1,
.vsel_mask = STW_CONF1_VMMC_MASK,
};
static int stw481x_vmmc_regulator_probe(struct platform_device *pdev)
{
struct stw481x *stw481x = dev_get_platdata(&pdev->dev);
struct regulator_config config = { };
struct regulator_dev *rdev;
int ret;
/* First disable the external VMMC if it's active */
ret = regmap_update_bits(stw481x->map, STW_CONF2,
STW_CONF2_VMMC_EXT, 0);
if (ret) {
dev_err(&pdev->dev, "could not disable external VMMC\n");
return ret;
}
/* Register VMMC regulator */
config.dev = &pdev->dev;
config.driver_data = stw481x;
config.regmap = stw481x->map;
config.of_node = pdev->dev.of_node;
config.init_data = of_get_regulator_init_data(&pdev->dev,
pdev->dev.of_node,
&vmmc_regulator);
rdev = devm_regulator_register(&pdev->dev, &vmmc_regulator, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev,
"error initializing STw481x VMMC regulator\n");
return PTR_ERR(rdev);
}
dev_info(&pdev->dev, "initialized STw481x VMMC regulator\n");
return 0;
}
static const struct of_device_id stw481x_vmmc_match[] = {
{ .compatible = "st,stw481x-vmmc", },
{},
};
static struct platform_driver stw481x_vmmc_regulator_driver = {
.driver = {
.name = "stw481x-vmmc-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = stw481x_vmmc_match,
},
.probe = stw481x_vmmc_regulator_probe,
};
module_platform_driver(stw481x_vmmc_regulator_driver);
| linux-master | drivers/regulator/stw481x-vmmc.c |
// SPDX-License-Identifier: GPL-2.0+
//
// max77693.c - Regulator driver for the Maxim 77693 and 77843
//
// Copyright (C) 2013-2015 Samsung Electronics
// Jonghwa Lee <[email protected]>
// Krzysztof Kozlowski <[email protected]>
//
// This driver is based on max77686.c
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/export.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/max77693.h>
#include <linux/mfd/max77693-common.h>
#include <linux/mfd/max77693-private.h>
#include <linux/mfd/max77843-private.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>
/*
* ID for MAX77843 regulators.
* There is no need for such for MAX77693.
*/
enum max77843_regulator_type {
MAX77843_SAFEOUT1 = 0,
MAX77843_SAFEOUT2,
MAX77843_CHARGER,
MAX77843_NUM,
};
/* Register differences between chargers: MAX77693 and MAX77843 */
struct chg_reg_data {
unsigned int linear_reg;
unsigned int linear_mask;
unsigned int uA_step;
unsigned int min_sel;
};
/*
* MAX77693 CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA
* 0x00, 0x01, 0x2, 0x03 = 60 mA
* 0x04 ~ 0x7E = (60 + (X - 3) * 20) mA
* Actually for MAX77693 the driver manipulates the maximum input current,
* not the fast charge current (output). This should be fixed.
*
* On MAX77843 the calculation formula is the same (except values).
* Fortunately it properly manipulates the fast charge current.
*/
static int max77693_chg_get_current_limit(struct regulator_dev *rdev)
{
const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
unsigned int chg_min_uA = rdev->constraints->min_uA;
unsigned int chg_max_uA = rdev->constraints->max_uA;
unsigned int reg, sel;
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, reg_data->linear_reg, ®);
if (ret < 0)
return ret;
sel = reg & reg_data->linear_mask;
/* the first four codes for charger current are all 60mA */
if (sel <= reg_data->min_sel)
sel = 0;
else
sel -= reg_data->min_sel;
val = chg_min_uA + reg_data->uA_step * sel;
if (val > chg_max_uA)
return -EINVAL;
return val;
}
static int max77693_chg_set_current_limit(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev);
unsigned int chg_min_uA = rdev->constraints->min_uA;
int sel = 0;
while (chg_min_uA + reg_data->uA_step * sel < min_uA)
sel++;
if (chg_min_uA + reg_data->uA_step * sel > max_uA)
return -EINVAL;
/* the first four codes for charger current are all 60mA */
sel += reg_data->min_sel;
return regmap_write(rdev->regmap, reg_data->linear_reg, sel);
}
/* end of CHARGER regulator ops */
/* Returns regmap suitable for given regulator on chosen device */
static struct regmap *max77693_get_regmap(enum max77693_types type,
struct max77693_dev *max77693,
int reg_id)
{
if (type == TYPE_MAX77693)
return max77693->regmap;
/* Else: TYPE_MAX77843 */
switch (reg_id) {
case MAX77843_SAFEOUT1:
case MAX77843_SAFEOUT2:
return max77693->regmap;
case MAX77843_CHARGER:
return max77693->regmap_chg;
default:
return max77693->regmap;
}
}
static const unsigned int max77693_safeout_table[] = {
4850000,
4900000,
4950000,
3300000,
};
static const struct regulator_ops max77693_safeout_ops = {
.list_voltage = regulator_list_voltage_table,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_ops max77693_charger_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_current_limit = max77693_chg_get_current_limit,
.set_current_limit = max77693_chg_set_current_limit,
};
#define max77693_regulator_desc_esafeout(_num) { \
.name = "ESAFEOUT"#_num, \
.id = MAX77693_ESAFEOUT##_num, \
.of_match = of_match_ptr("ESAFEOUT"#_num), \
.regulators_node = of_match_ptr("regulators"), \
.n_voltages = 4, \
.ops = &max77693_safeout_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.volt_table = max77693_safeout_table, \
.vsel_reg = MAX77693_CHG_REG_SAFEOUT_CTRL, \
.vsel_mask = SAFEOUT_CTRL_SAFEOUT##_num##_MASK, \
.enable_reg = MAX77693_CHG_REG_SAFEOUT_CTRL, \
.enable_mask = SAFEOUT_CTRL_ENSAFEOUT##_num##_MASK , \
}
static const struct regulator_desc max77693_supported_regulators[] = {
max77693_regulator_desc_esafeout(1),
max77693_regulator_desc_esafeout(2),
{
.name = "CHARGER",
.id = MAX77693_CHARGER,
.of_match = of_match_ptr("CHARGER"),
.regulators_node = of_match_ptr("regulators"),
.ops = &max77693_charger_ops,
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
.enable_reg = MAX77693_CHG_REG_CHG_CNFG_00,
.enable_mask = CHG_CNFG_00_CHG_MASK |
CHG_CNFG_00_BUCK_MASK,
.enable_val = CHG_CNFG_00_CHG_MASK | CHG_CNFG_00_BUCK_MASK,
},
};
static const struct chg_reg_data max77693_chg_reg_data = {
.linear_reg = MAX77693_CHG_REG_CHG_CNFG_09,
.linear_mask = CHG_CNFG_09_CHGIN_ILIM_MASK,
.uA_step = 20000,
.min_sel = 3,
};
#define max77843_regulator_desc_esafeout(num) { \
.name = "SAFEOUT" # num, \
.id = MAX77843_SAFEOUT ## num, \
.ops = &max77693_safeout_ops, \
.of_match = of_match_ptr("SAFEOUT" # num), \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(max77693_safeout_table), \
.volt_table = max77693_safeout_table, \
.enable_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \
.enable_mask = MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT ## num, \
.vsel_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \
.vsel_mask = MAX77843_REG_SAFEOUTCTRL_SAFEOUT ## num ## _MASK, \
}
static const struct regulator_desc max77843_supported_regulators[] = {
[MAX77843_SAFEOUT1] = max77843_regulator_desc_esafeout(1),
[MAX77843_SAFEOUT2] = max77843_regulator_desc_esafeout(2),
[MAX77843_CHARGER] = {
.name = "CHARGER",
.id = MAX77843_CHARGER,
.ops = &max77693_charger_ops,
.of_match = of_match_ptr("CHARGER"),
.regulators_node = of_match_ptr("regulators"),
.type = REGULATOR_CURRENT,
.owner = THIS_MODULE,
.enable_reg = MAX77843_CHG_REG_CHG_CNFG_00,
.enable_mask = MAX77843_CHG_MASK,
.enable_val = MAX77843_CHG_MASK,
},
};
static const struct chg_reg_data max77843_chg_reg_data = {
.linear_reg = MAX77843_CHG_REG_CHG_CNFG_02,
.linear_mask = MAX77843_CHG_FAST_CHG_CURRENT_MASK,
.uA_step = MAX77843_CHG_FAST_CHG_CURRENT_STEP,
.min_sel = 2,
};
static int max77693_pmic_probe(struct platform_device *pdev)
{
enum max77693_types type = platform_get_device_id(pdev)->driver_data;
struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
const struct regulator_desc *regulators;
unsigned int regulators_size;
int i;
struct regulator_config config = { };
config.dev = iodev->dev;
switch (type) {
case TYPE_MAX77693:
regulators = max77693_supported_regulators;
regulators_size = ARRAY_SIZE(max77693_supported_regulators);
config.driver_data = (void *)&max77693_chg_reg_data;
break;
case TYPE_MAX77843:
regulators = max77843_supported_regulators;
regulators_size = ARRAY_SIZE(max77843_supported_regulators);
config.driver_data = (void *)&max77843_chg_reg_data;
break;
default:
dev_err(&pdev->dev, "Unsupported device type: %u\n", type);
return -ENODEV;
}
for (i = 0; i < regulators_size; i++) {
struct regulator_dev *rdev;
config.regmap = max77693_get_regmap(type, iodev,
regulators[i].id);
rdev = devm_regulator_register(&pdev->dev,
®ulators[i], &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev,
"Failed to initialize regulator-%d\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id max77693_pmic_id[] = {
{ "max77693-pmic", TYPE_MAX77693 },
{ "max77843-regulator", TYPE_MAX77843 },
{},
};
MODULE_DEVICE_TABLE(platform, max77693_pmic_id);
static struct platform_driver max77693_pmic_driver = {
.driver = {
.name = "max77693-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max77693_pmic_probe,
.id_table = max77693_pmic_id,
};
static int __init max77693_pmic_init(void)
{
return platform_driver_register(&max77693_pmic_driver);
}
subsys_initcall(max77693_pmic_init);
static void __exit max77693_pmic_cleanup(void)
{
platform_driver_unregister(&max77693_pmic_driver);
}
module_exit(max77693_pmic_cleanup);
MODULE_DESCRIPTION("MAXIM 77693/77843 regulator driver");
MODULE_AUTHOR("Jonghwa Lee <[email protected]>");
MODULE_AUTHOR("Krzysztof Kozlowski <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max77693-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/bitops.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
enum {
RTQ2134_IDX_BUCK1 = 0,
RTQ2134_IDX_BUCK2,
RTQ2134_IDX_BUCK3,
RTQ2134_IDX_MAX
};
#define RTQ2134_AUTO_MODE 0
#define RTQ2134_FCCM_MODE 1
#define RTQ2134_BUCK_DVS0_CTRL 0
#define RTQ2134_BUCK_VSEL_CTRL 2
#define RTQ2134_REG_IO_CHIPNAME 0x01
#define RTQ2134_REG_FLT_RECORDTEMP 0x13
#define RTQ2134_REG_FLT_RECORDBUCK(_id) (0x14 + (_id))
#define RTQ2134_REG_FLT_BUCKCTRL(_id) (0x37 + (_id))
#define RTQ2134_REG_BUCK1_CFG0 0x42
#define RTQ2134_REG_BUCK1_DVS0CFG1 0x48
#define RTQ2134_REG_BUCK1_DVS0CFG0 0x49
#define RTQ2134_REG_BUCK1_DVS1CFG1 0x4A
#define RTQ2134_REG_BUCK1_DVS1CFG0 0x4B
#define RTQ2134_REG_BUCK1_DVSCFG 0x52
#define RTQ2134_REG_BUCK1_RSPCFG 0x54
#define RTQ2134_REG_BUCK2_CFG0 0x5F
#define RTQ2134_REG_BUCK2_DVS0CFG1 0x62
#define RTQ2134_REG_BUCK2_DVS0CFG0 0x63
#define RTQ2134_REG_BUCK2_DVS1CFG1 0x64
#define RTQ2134_REG_BUCK2_DVS1CFG0 0x65
#define RTQ2134_REG_BUCK2_DVSCFG 0x6C
#define RTQ2134_REG_BUCK2_RSPCFG 0x6E
#define RTQ2134_REG_BUCK3_CFG0 0x79
#define RTQ2134_REG_BUCK3_DVS0CFG1 0x7C
#define RTQ2134_REG_BUCK3_DVS0CFG0 0x7D
#define RTQ2134_REG_BUCK3_DVS1CFG1 0x7E
#define RTQ2134_REG_BUCK3_DVS1CFG0 0x7F
#define RTQ2134_REG_BUCK3_DVSCFG 0x86
#define RTQ2134_REG_BUCK3_RSPCFG 0x88
#define RTQ2134_REG_BUCK3_SLEWCTRL 0x89
#define RTQ2134_VOUT_MAXNUM 256
#define RTQ2134_VOUT_MASK 0xFF
#define RTQ2134_VOUTEN_MASK BIT(0)
#define RTQ2134_ACTDISCHG_MASK BIT(0)
#define RTQ2134_RSPUP_MASK GENMASK(6, 4)
#define RTQ2134_FCCM_MASK BIT(5)
#define RTQ2134_UVHICCUP_MASK BIT(3)
#define RTQ2134_BUCKDVS_CTRL_MASK GENMASK(1, 0)
#define RTQ2134_CHIPOT_MASK BIT(2)
#define RTQ2134_BUCKOV_MASK BIT(5)
#define RTQ2134_BUCKUV_MASK BIT(4)
struct rtq2134_regulator_desc {
struct regulator_desc desc;
/* Extension for proprietary register and mask */
unsigned int mode_reg;
unsigned int mode_mask;
unsigned int suspend_enable_reg;
unsigned int suspend_enable_mask;
unsigned int suspend_vsel_reg;
unsigned int suspend_vsel_mask;
unsigned int suspend_mode_reg;
unsigned int suspend_mode_mask;
unsigned int dvs_ctrl_reg;
};
static int rtq2134_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
unsigned int val;
if (mode == REGULATOR_MODE_NORMAL)
val = RTQ2134_AUTO_MODE;
else if (mode == REGULATOR_MODE_FAST)
val = RTQ2134_FCCM_MODE;
else
return -EINVAL;
val <<= ffs(desc->mode_mask) - 1;
return regmap_update_bits(rdev->regmap, desc->mode_reg, desc->mode_mask,
val);
}
static unsigned int rtq2134_buck_get_mode(struct regulator_dev *rdev)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
unsigned int mode;
int ret;
ret = regmap_read(rdev->regmap, desc->mode_reg, &mode);
if (ret)
return ret;
if (mode & desc->mode_mask)
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static int rtq2134_buck_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
int sel;
sel = regulator_map_voltage_linear_range(rdev, uV, uV);
if (sel < 0)
return sel;
sel <<= ffs(desc->suspend_vsel_mask) - 1;
return regmap_update_bits(rdev->regmap, desc->suspend_vsel_reg,
desc->suspend_vsel_mask, sel);
}
static int rtq2134_buck_set_suspend_enable(struct regulator_dev *rdev)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
unsigned int val = desc->suspend_enable_mask;
return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg,
desc->suspend_enable_mask, val);
}
static int rtq2134_buck_set_suspend_disable(struct regulator_dev *rdev)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg,
desc->suspend_enable_mask, 0);
}
static int rtq2134_buck_set_suspend_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct rtq2134_regulator_desc *desc =
(struct rtq2134_regulator_desc *)rdev->desc;
unsigned int val;
if (mode == REGULATOR_MODE_NORMAL)
val = RTQ2134_AUTO_MODE;
else if (mode == REGULATOR_MODE_FAST)
val = RTQ2134_FCCM_MODE;
else
return -EINVAL;
val <<= ffs(desc->suspend_mode_mask) - 1;
return regmap_update_bits(rdev->regmap, desc->suspend_mode_reg,
desc->suspend_mode_mask, val);
}
static int rtq2134_buck_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
int rid = rdev_get_id(rdev);
unsigned int chip_error, buck_error, events = 0;
int ret;
ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDTEMP,
&chip_error);
if (ret) {
dev_err(&rdev->dev, "Failed to get chip error flag\n");
return ret;
}
ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDBUCK(rid),
&buck_error);
if (ret) {
dev_err(&rdev->dev, "Failed to get buck error flag\n");
return ret;
}
if (chip_error & RTQ2134_CHIPOT_MASK)
events |= REGULATOR_ERROR_OVER_TEMP;
if (buck_error & RTQ2134_BUCKUV_MASK)
events |= REGULATOR_ERROR_UNDER_VOLTAGE;
if (buck_error & RTQ2134_BUCKOV_MASK)
events |= REGULATOR_ERROR_REGULATION_OUT;
*flags = events;
return 0;
}
static const struct regulator_ops rtq2134_buck_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.set_mode = rtq2134_buck_set_mode,
.get_mode = rtq2134_buck_get_mode,
.set_suspend_voltage = rtq2134_buck_set_suspend_voltage,
.set_suspend_enable = rtq2134_buck_set_suspend_enable,
.set_suspend_disable = rtq2134_buck_set_suspend_disable,
.set_suspend_mode = rtq2134_buck_set_suspend_mode,
.get_error_flags = rtq2134_buck_get_error_flags,
};
static const struct linear_range rtq2134_buck_vout_ranges[] = {
REGULATOR_LINEAR_RANGE(300000, 0, 200, 5000),
REGULATOR_LINEAR_RANGE(1310000, 201, 255, 10000)
};
static unsigned int rtq2134_buck_of_map_mode(unsigned int mode)
{
switch (mode) {
case RTQ2134_AUTO_MODE:
return REGULATOR_MODE_NORMAL;
case RTQ2134_FCCM_MODE:
return REGULATOR_MODE_FAST;
}
return REGULATOR_MODE_INVALID;
}
static int rtq2134_buck_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct rtq2134_regulator_desc *rdesc =
(struct rtq2134_regulator_desc *)desc;
int rid = desc->id;
bool uv_shutdown, vsel_dvs;
unsigned int val;
int ret;
vsel_dvs = of_property_read_bool(np, "richtek,use-vsel-dvs");
if (vsel_dvs)
val = RTQ2134_BUCK_VSEL_CTRL;
else
val = RTQ2134_BUCK_DVS0_CTRL;
ret = regmap_update_bits(cfg->regmap, rdesc->dvs_ctrl_reg,
RTQ2134_BUCKDVS_CTRL_MASK, val);
if (ret)
return ret;
uv_shutdown = of_property_read_bool(np, "richtek,uv-shutdown");
if (uv_shutdown)
val = 0;
else
val = RTQ2134_UVHICCUP_MASK;
return regmap_update_bits(cfg->regmap, RTQ2134_REG_FLT_BUCKCTRL(rid),
RTQ2134_UVHICCUP_MASK, val);
}
static const unsigned int rtq2134_buck_ramp_delay_table[] = {
0, 16000, 0, 8000, 4000, 2000, 1000, 500
};
#define RTQ2134_BUCK_DESC(_id) { \
.desc = { \
.name = "rtq2134_buck" #_id, \
.of_match = of_match_ptr("buck" #_id), \
.regulators_node = of_match_ptr("regulators"), \
.id = RTQ2134_IDX_BUCK##_id, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.ops = &rtq2134_buck_ops, \
.n_voltages = RTQ2134_VOUT_MAXNUM, \
.linear_ranges = rtq2134_buck_vout_ranges, \
.n_linear_ranges = ARRAY_SIZE(rtq2134_buck_vout_ranges), \
.vsel_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG1, \
.vsel_mask = RTQ2134_VOUT_MASK, \
.enable_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \
.enable_mask = RTQ2134_VOUTEN_MASK, \
.active_discharge_reg = RTQ2134_REG_BUCK##_id##_CFG0, \
.active_discharge_mask = RTQ2134_ACTDISCHG_MASK, \
.active_discharge_on = RTQ2134_ACTDISCHG_MASK, \
.ramp_reg = RTQ2134_REG_BUCK##_id##_RSPCFG, \
.ramp_mask = RTQ2134_RSPUP_MASK, \
.ramp_delay_table = rtq2134_buck_ramp_delay_table, \
.n_ramp_values = ARRAY_SIZE(rtq2134_buck_ramp_delay_table), \
.of_map_mode = rtq2134_buck_of_map_mode, \
.of_parse_cb = rtq2134_buck_of_parse_cb, \
}, \
.mode_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \
.mode_mask = RTQ2134_FCCM_MASK, \
.suspend_mode_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \
.suspend_mode_mask = RTQ2134_FCCM_MASK, \
.suspend_enable_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \
.suspend_enable_mask = RTQ2134_VOUTEN_MASK, \
.suspend_vsel_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG1, \
.suspend_vsel_mask = RTQ2134_VOUT_MASK, \
.dvs_ctrl_reg = RTQ2134_REG_BUCK##_id##_DVSCFG, \
}
static const struct rtq2134_regulator_desc rtq2134_regulator_descs[] = {
RTQ2134_BUCK_DESC(1),
RTQ2134_BUCK_DESC(2),
RTQ2134_BUCK_DESC(3)
};
static bool rtq2134_is_accissible_reg(struct device *dev, unsigned int reg)
{
if (reg >= RTQ2134_REG_IO_CHIPNAME && reg <= RTQ2134_REG_BUCK3_SLEWCTRL)
return true;
return false;
}
static const struct regmap_config rtq2134_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RTQ2134_REG_BUCK3_SLEWCTRL,
.readable_reg = rtq2134_is_accissible_reg,
.writeable_reg = rtq2134_is_accissible_reg,
};
static int rtq2134_probe(struct i2c_client *i2c)
{
struct regmap *regmap;
struct regulator_dev *rdev;
struct regulator_config regulator_cfg = {};
int i;
regmap = devm_regmap_init_i2c(i2c, &rtq2134_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&i2c->dev, "Failed to allocate regmap\n");
return PTR_ERR(regmap);
}
regulator_cfg.dev = &i2c->dev;
regulator_cfg.regmap = regmap;
for (i = 0; i < ARRAY_SIZE(rtq2134_regulator_descs); i++) {
rdev = devm_regulator_register(&i2c->dev,
&rtq2134_regulator_descs[i].desc,
®ulator_cfg);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to init %d regulator\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct of_device_id __maybe_unused rtq2134_device_tables[] = {
{ .compatible = "richtek,rtq2134", },
{}
};
MODULE_DEVICE_TABLE(of, rtq2134_device_tables);
static struct i2c_driver rtq2134_driver = {
.driver = {
.name = "rtq2134",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = rtq2134_device_tables,
},
.probe = rtq2134_probe,
};
module_i2c_driver(rtq2134_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_DESCRIPTION("Richtek RTQ2134 Regulator Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rtq2134-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Motorola CPCAP PMIC regulator driver
*
* Based on cpcap-regulator.c from Motorola Linux kernel tree
* Copyright (C) 2009-2011 Motorola, Inc.
*
* Rewritten for mainline kernel to use device tree and regmap
* Copyright (C) 2017 Tony Lindgren <[email protected]>
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/motorola-cpcap.h>
/*
* Resource assignment register bits. These seem to control the state
* idle modes adn are used at least for omap4.
*/
/* CPCAP_REG_ASSIGN2 bits - Resource Assignment 2 */
#define CPCAP_BIT_VSDIO_SEL BIT(15)
#define CPCAP_BIT_VDIG_SEL BIT(14)
#define CPCAP_BIT_VCAM_SEL BIT(13)
#define CPCAP_BIT_SW6_SEL BIT(12)
#define CPCAP_BIT_SW5_SEL BIT(11)
#define CPCAP_BIT_SW4_SEL BIT(10)
#define CPCAP_BIT_SW3_SEL BIT(9)
#define CPCAP_BIT_SW2_SEL BIT(8)
#define CPCAP_BIT_SW1_SEL BIT(7)
/* CPCAP_REG_ASSIGN3 bits - Resource Assignment 3 */
#define CPCAP_BIT_VUSBINT2_SEL BIT(15)
#define CPCAP_BIT_VUSBINT1_SEL BIT(14)
#define CPCAP_BIT_VVIB_SEL BIT(13)
#define CPCAP_BIT_VWLAN1_SEL BIT(12)
#define CPCAP_BIT_VRF1_SEL BIT(11)
#define CPCAP_BIT_VHVIO_SEL BIT(10)
#define CPCAP_BIT_VDAC_SEL BIT(9)
#define CPCAP_BIT_VUSB_SEL BIT(8)
#define CPCAP_BIT_VSIM_SEL BIT(7)
#define CPCAP_BIT_VRFREF_SEL BIT(6)
#define CPCAP_BIT_VPLL_SEL BIT(5)
#define CPCAP_BIT_VFUSE_SEL BIT(4)
#define CPCAP_BIT_VCSI_SEL BIT(3)
#define CPCAP_BIT_SPARE_14_2 BIT(2)
#define CPCAP_BIT_VWLAN2_SEL BIT(1)
#define CPCAP_BIT_VRF2_SEL BIT(0)
/* CPCAP_REG_ASSIGN4 bits - Resource Assignment 4 */
#define CPCAP_BIT_VAUDIO_SEL BIT(0)
/*
* Enable register bits. At least CPCAP_BIT_AUDIO_LOW_PWR is generic,
* and not limited to audio regulator. Let's use the Motorola kernel
* naming for now until we have a better understanding of the other
* enable register bits. No idea why BIT(3) is not defined.
*/
#define CPCAP_BIT_AUDIO_LOW_PWR BIT(6)
#define CPCAP_BIT_AUD_LOWPWR_SPEED BIT(5)
#define CPCAP_BIT_VAUDIOPRISTBY BIT(4)
#define CPCAP_BIT_VAUDIO_MODE1 BIT(2)
#define CPCAP_BIT_VAUDIO_MODE0 BIT(1)
#define CPCAP_BIT_V_AUDIO_EN BIT(0)
#define CPCAP_BIT_AUDIO_NORMAL_MODE 0x00
/*
* Off mode configuration bit. Used currently only by SW5 on omap4. There's
* the following comment in Motorola Linux kernel tree for it:
*
* When set in the regulator mode, the regulator assignment will be changed
* to secondary when the regulator is disabled. The mode will be set back to
* primary when the regulator is turned on.
*/
#define CPCAP_REG_OFF_MODE_SEC BIT(15)
/*
* SoC specific configuration for CPCAP regulator. There are at least three
* different SoCs each with their own parameters: omap3, omap4 and tegra2.
*
* The assign_reg and assign_mask seem to allow toggling between primary
* and secondary mode that at least omap4 uses for off mode.
*/
struct cpcap_regulator {
struct regulator_desc rdesc;
const u16 assign_reg;
const u16 assign_mask;
};
#define CPCAP_REG(_ID, reg, assignment_reg, assignment_mask, val_tbl, \
mode_mask, volt_mask, mode_val, off_val, \
volt_trans_time) { \
.rdesc = { \
.name = #_ID, \
.of_match = of_match_ptr(#_ID), \
.ops = &cpcap_regulator_ops, \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.id = CPCAP_##_ID, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(val_tbl), \
.volt_table = (val_tbl), \
.vsel_reg = (reg), \
.vsel_mask = (volt_mask), \
.enable_reg = (reg), \
.enable_mask = (mode_mask), \
.enable_val = (mode_val), \
.disable_val = (off_val), \
.ramp_delay = (volt_trans_time), \
.of_map_mode = cpcap_map_mode, \
}, \
.assign_reg = (assignment_reg), \
.assign_mask = (assignment_mask), \
}
struct cpcap_ddata {
struct regmap *reg;
struct device *dev;
const struct cpcap_regulator *soc;
};
enum cpcap_regulator_id {
CPCAP_SW1,
CPCAP_SW2,
CPCAP_SW3,
CPCAP_SW4,
CPCAP_SW5,
CPCAP_SW6,
CPCAP_VCAM,
CPCAP_VCSI,
CPCAP_VDAC,
CPCAP_VDIG,
CPCAP_VFUSE,
CPCAP_VHVIO,
CPCAP_VSDIO,
CPCAP_VPLL,
CPCAP_VRF1,
CPCAP_VRF2,
CPCAP_VRFREF,
CPCAP_VWLAN1,
CPCAP_VWLAN2,
CPCAP_VSIM,
CPCAP_VSIMCARD,
CPCAP_VVIB,
CPCAP_VUSB,
CPCAP_VAUDIO,
CPCAP_NR_REGULATORS,
};
/*
* We need to also configure regulator idle mode for SoC off mode if
* CPCAP_REG_OFF_MODE_SEC is set.
*/
static int cpcap_regulator_enable(struct regulator_dev *rdev)
{
struct cpcap_regulator *regulator = rdev_get_drvdata(rdev);
int error;
error = regulator_enable_regmap(rdev);
if (error)
return error;
if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) {
error = regmap_update_bits(rdev->regmap, regulator->assign_reg,
regulator->assign_mask,
regulator->assign_mask);
if (error)
regulator_disable_regmap(rdev);
}
return error;
}
/*
* We need to also configure regulator idle mode for SoC off mode if
* CPCAP_REG_OFF_MODE_SEC is set.
*/
static int cpcap_regulator_disable(struct regulator_dev *rdev)
{
struct cpcap_regulator *regulator = rdev_get_drvdata(rdev);
int error;
if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) {
error = regmap_update_bits(rdev->regmap, regulator->assign_reg,
regulator->assign_mask, 0);
if (error)
return error;
}
error = regulator_disable_regmap(rdev);
if (error && (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC)) {
regmap_update_bits(rdev->regmap, regulator->assign_reg,
regulator->assign_mask,
regulator->assign_mask);
}
return error;
}
static unsigned int cpcap_map_mode(unsigned int mode)
{
switch (mode) {
case CPCAP_BIT_AUDIO_NORMAL_MODE:
return REGULATOR_MODE_NORMAL;
case CPCAP_BIT_AUDIO_LOW_PWR:
return REGULATOR_MODE_STANDBY;
default:
return REGULATOR_MODE_INVALID;
}
}
static unsigned int cpcap_regulator_get_mode(struct regulator_dev *rdev)
{
int value;
regmap_read(rdev->regmap, rdev->desc->enable_reg, &value);
if (value & CPCAP_BIT_AUDIO_LOW_PWR)
return REGULATOR_MODE_STANDBY;
return REGULATOR_MODE_NORMAL;
}
static int cpcap_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
int value;
switch (mode) {
case REGULATOR_MODE_NORMAL:
value = CPCAP_BIT_AUDIO_NORMAL_MODE;
break;
case REGULATOR_MODE_STANDBY:
value = CPCAP_BIT_AUDIO_LOW_PWR;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
CPCAP_BIT_AUDIO_LOW_PWR, value);
}
static const struct regulator_ops cpcap_regulator_ops = {
.enable = cpcap_regulator_enable,
.disable = cpcap_regulator_disable,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_mode = cpcap_regulator_get_mode,
.set_mode = cpcap_regulator_set_mode,
};
static const unsigned int unknown_val_tbl[] = { 0, };
static const unsigned int sw2_sw4_val_tbl[] = { 612500, 625000, 637500,
650000, 662500, 675000,
687500, 700000, 712500,
725000, 737500, 750000,
762500, 775000, 787500,
800000, 812500, 825000,
837500, 850000, 862500,
875000, 887500, 900000,
912500, 925000, 937500,
950000, 962500, 975000,
987500, 1000000, 1012500,
1025000, 1037500, 1050000,
1062500, 1075000, 1087500,
1100000, 1112500, 1125000,
1137500, 1150000, 1162500,
1175000, 1187500, 1200000,
1212500, 1225000, 1237500,
1250000, 1262500, 1275000,
1287500, 1300000, 1312500,
1325000, 1337500, 1350000,
1362500, 1375000, 1387500,
1400000, 1412500, 1425000,
1437500, 1450000, 1462500, };
static const unsigned int sw5_val_tbl[] = { 0, 5050000, };
static const unsigned int vcam_val_tbl[] = { 2600000, 2700000, 2800000,
2900000, };
static const unsigned int vcsi_val_tbl[] = { 1200000, 1800000, };
static const unsigned int vdac_val_tbl[] = { 1200000, 1500000, 1800000,
2500000,};
static const unsigned int vdig_val_tbl[] = { 1200000, 1350000, 1500000,
1875000, };
static const unsigned int vfuse_val_tbl[] = { 1500000, 1600000, 1700000,
1800000, 1900000, 2000000,
2100000, 2200000, 2300000,
2400000, 2500000, 2600000,
2700000, 3150000, };
static const unsigned int vhvio_val_tbl[] = { 2775000, };
static const unsigned int vsdio_val_tbl[] = { 1500000, 1600000, 1800000,
2600000, 2700000, 2800000,
2900000, 3000000, };
static const unsigned int vpll_val_tbl[] = { 1200000, 1300000, 1400000,
1800000, };
/* Quirk: 2775000 is before 2500000 for vrf1 regulator */
static const unsigned int vrf1_val_tbl[] = { 2775000, 2500000, };
static const unsigned int vrf2_val_tbl[] = { 0, 2775000, };
static const unsigned int vrfref_val_tbl[] = { 2500000, 2775000, };
static const unsigned int vwlan1_val_tbl[] = { 1800000, 1900000, };
static const unsigned int vwlan2_val_tbl[] = { 2775000, 3000000, 3300000,
3300000, };
static const unsigned int vsim_val_tbl[] = { 1800000, 2900000, };
static const unsigned int vsimcard_val_tbl[] = { 1800000, 2900000, };
static const unsigned int vvib_val_tbl[] = { 1300000, 1800000, 2000000,
3000000, };
static const unsigned int vusb_val_tbl[] = { 0, 3300000, };
static const unsigned int vaudio_val_tbl[] = { 0, 2775000, };
/*
* SoC specific configuration for omap4. The data below is comes from Motorola
* Linux kernel tree. It's basically the values of cpcap_regltr_data,
* cpcap_regulator_mode_values and cpcap_regulator_off_mode_values, see
* CPCAP_REG macro above.
*
* SW1 to SW4 and SW6 seems to be unused for mapphone. Note that VSIM and
* VSIMCARD have a shared resource assignment bit.
*/
static const struct cpcap_regulator omap4_regulators[] = {
CPCAP_REG(SW1, CPCAP_REG_S1C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW1_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW2, CPCAP_REG_S2C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW2_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW3, CPCAP_REG_S3C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW3_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW4, CPCAP_REG_S4C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW4_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW5, CPCAP_REG_S5C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW5_SEL, sw5_val_tbl,
0x28, 0, 0x20 | CPCAP_REG_OFF_MODE_SEC, 0, 0),
CPCAP_REG(SW6, CPCAP_REG_S6C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW6_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(VCAM, CPCAP_REG_VCAMC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VCAM_SEL, vcam_val_tbl,
0x87, 0x30, 0x3, 0, 420),
CPCAP_REG(VCSI, CPCAP_REG_VCSIC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VCSI_SEL, vcsi_val_tbl,
0x47, 0x10, 0x43, 0x41, 350),
CPCAP_REG(VDAC, CPCAP_REG_VDACC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VDAC_SEL, vdac_val_tbl,
0x87, 0x30, 0x3, 0, 420),
CPCAP_REG(VDIG, CPCAP_REG_VDIGC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VDIG_SEL, vdig_val_tbl,
0x87, 0x30, 0x82, 0, 420),
CPCAP_REG(VFUSE, CPCAP_REG_VFUSEC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VFUSE_SEL, vfuse_val_tbl,
0x80, 0xf, 0x80, 0, 420),
CPCAP_REG(VHVIO, CPCAP_REG_VHVIOC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VHVIO_SEL, vhvio_val_tbl,
0x17, 0, 0, 0x12, 0),
CPCAP_REG(VSDIO, CPCAP_REG_VSDIOC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VSDIO_SEL, vsdio_val_tbl,
0x87, 0x38, 0x82, 0, 420),
CPCAP_REG(VPLL, CPCAP_REG_VPLLC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VPLL_SEL, vpll_val_tbl,
0x43, 0x18, 0x2, 0, 420),
CPCAP_REG(VRF1, CPCAP_REG_VRF1C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRF1_SEL, vrf1_val_tbl,
0xac, 0x2, 0x4, 0, 10),
CPCAP_REG(VRF2, CPCAP_REG_VRF2C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRF2_SEL, vrf2_val_tbl,
0x23, 0x8, 0, 0, 10),
CPCAP_REG(VRFREF, CPCAP_REG_VRFREFC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRFREF_SEL, vrfref_val_tbl,
0x23, 0x8, 0, 0, 420),
CPCAP_REG(VWLAN1, CPCAP_REG_VWLAN1C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VWLAN1_SEL, vwlan1_val_tbl,
0x47, 0x10, 0, 0, 420),
CPCAP_REG(VWLAN2, CPCAP_REG_VWLAN2C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VWLAN2_SEL, vwlan2_val_tbl,
0x20c, 0xc0, 0x20c, 0, 420),
CPCAP_REG(VSIM, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3,
0xffff, vsim_val_tbl,
0x23, 0x8, 0x3, 0, 420),
CPCAP_REG(VSIMCARD, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3,
0xffff, vsimcard_val_tbl,
0x1e80, 0x8, 0x1e00, 0, 420),
CPCAP_REG(VVIB, CPCAP_REG_VVIBC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VVIB_SEL, vvib_val_tbl,
0x1, 0xc, 0x1, 0, 500),
CPCAP_REG(VUSB, CPCAP_REG_VUSBC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VUSB_SEL, vusb_val_tbl,
0x11c, 0x40, 0xc, 0, 0),
CPCAP_REG(VAUDIO, CPCAP_REG_VAUDIOC, CPCAP_REG_ASSIGN4,
CPCAP_BIT_VAUDIO_SEL, vaudio_val_tbl,
0x16, 0x1, 0x4, 0, 0),
{ /* sentinel */ },
};
static const struct cpcap_regulator xoom_regulators[] = {
CPCAP_REG(SW1, CPCAP_REG_S1C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW1_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW2, CPCAP_REG_S2C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW2_SEL, sw2_sw4_val_tbl,
0xf00, 0x7f, 0x800, 0, 120),
CPCAP_REG(SW3, CPCAP_REG_S3C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW3_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(SW4, CPCAP_REG_S4C1, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW4_SEL, sw2_sw4_val_tbl,
0xf00, 0x7f, 0x900, 0, 100),
CPCAP_REG(SW5, CPCAP_REG_S5C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW5_SEL, sw5_val_tbl,
0x2a, 0, 0x22, 0, 0),
CPCAP_REG(SW6, CPCAP_REG_S6C, CPCAP_REG_ASSIGN2,
CPCAP_BIT_SW6_SEL, unknown_val_tbl,
0, 0, 0, 0, 0),
CPCAP_REG(VCAM, CPCAP_REG_VCAMC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VCAM_SEL, vcam_val_tbl,
0x87, 0x30, 0x7, 0, 420),
CPCAP_REG(VCSI, CPCAP_REG_VCSIC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VCSI_SEL, vcsi_val_tbl,
0x47, 0x10, 0x7, 0, 350),
CPCAP_REG(VDAC, CPCAP_REG_VDACC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VDAC_SEL, vdac_val_tbl,
0x87, 0x30, 0x3, 0, 420),
CPCAP_REG(VDIG, CPCAP_REG_VDIGC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VDIG_SEL, vdig_val_tbl,
0x87, 0x30, 0x5, 0, 420),
CPCAP_REG(VFUSE, CPCAP_REG_VFUSEC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VFUSE_SEL, vfuse_val_tbl,
0x80, 0xf, 0x80, 0, 420),
CPCAP_REG(VHVIO, CPCAP_REG_VHVIOC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VHVIO_SEL, vhvio_val_tbl,
0x17, 0, 0x2, 0, 0),
CPCAP_REG(VSDIO, CPCAP_REG_VSDIOC, CPCAP_REG_ASSIGN2,
CPCAP_BIT_VSDIO_SEL, vsdio_val_tbl,
0x87, 0x38, 0x2, 0, 420),
CPCAP_REG(VPLL, CPCAP_REG_VPLLC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VPLL_SEL, vpll_val_tbl,
0x43, 0x18, 0x1, 0, 420),
CPCAP_REG(VRF1, CPCAP_REG_VRF1C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRF1_SEL, vrf1_val_tbl,
0xac, 0x2, 0xc, 0, 10),
CPCAP_REG(VRF2, CPCAP_REG_VRF2C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRF2_SEL, vrf2_val_tbl,
0x23, 0x8, 0x3, 0, 10),
CPCAP_REG(VRFREF, CPCAP_REG_VRFREFC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VRFREF_SEL, vrfref_val_tbl,
0x23, 0x8, 0x3, 0, 420),
CPCAP_REG(VWLAN1, CPCAP_REG_VWLAN1C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VWLAN1_SEL, vwlan1_val_tbl,
0x47, 0x10, 0x5, 0, 420),
CPCAP_REG(VWLAN2, CPCAP_REG_VWLAN2C, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VWLAN2_SEL, vwlan2_val_tbl,
0x20c, 0xc0, 0x8, 0, 420),
CPCAP_REG(VSIM, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3,
0xffff, vsim_val_tbl,
0x23, 0x8, 0x3, 0, 420),
CPCAP_REG(VSIMCARD, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3,
0xffff, vsimcard_val_tbl,
0x1e80, 0x8, 0x1e00, 0, 420),
CPCAP_REG(VVIB, CPCAP_REG_VVIBC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VVIB_SEL, vvib_val_tbl,
0x1, 0xc, 0, 0x1, 500),
CPCAP_REG(VUSB, CPCAP_REG_VUSBC, CPCAP_REG_ASSIGN3,
CPCAP_BIT_VUSB_SEL, vusb_val_tbl,
0x11c, 0x40, 0xc, 0, 0),
CPCAP_REG(VAUDIO, CPCAP_REG_VAUDIOC, CPCAP_REG_ASSIGN4,
CPCAP_BIT_VAUDIO_SEL, vaudio_val_tbl,
0x16, 0x1, 0x4, 0, 0),
{ /* sentinel */ },
};
static const struct of_device_id cpcap_regulator_id_table[] = {
{
.compatible = "motorola,cpcap-regulator",
},
{
.compatible = "motorola,mapphone-cpcap-regulator",
.data = omap4_regulators,
},
{
.compatible = "motorola,xoom-cpcap-regulator",
.data = xoom_regulators,
},
{},
};
MODULE_DEVICE_TABLE(of, cpcap_regulator_id_table);
static int cpcap_regulator_probe(struct platform_device *pdev)
{
struct cpcap_ddata *ddata;
const struct cpcap_regulator *match_data;
struct regulator_config config;
int i;
match_data = of_device_get_match_data(&pdev->dev);
if (!match_data) {
dev_err(&pdev->dev, "no configuration data found\n");
return -ENODEV;
}
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
ddata->reg = dev_get_regmap(pdev->dev.parent, NULL);
if (!ddata->reg)
return -ENODEV;
ddata->dev = &pdev->dev;
ddata->soc = match_data;
platform_set_drvdata(pdev, ddata);
memset(&config, 0, sizeof(config));
config.dev = &pdev->dev;
config.regmap = ddata->reg;
for (i = 0; i < CPCAP_NR_REGULATORS; i++) {
const struct cpcap_regulator *regulator = &ddata->soc[i];
struct regulator_dev *rdev;
if (!regulator->rdesc.name)
break;
if (regulator->rdesc.volt_table == unknown_val_tbl)
continue;
config.driver_data = (void *)regulator;
rdev = devm_regulator_register(&pdev->dev,
®ulator->rdesc,
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
regulator->rdesc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver cpcap_regulator_driver = {
.probe = cpcap_regulator_probe,
.driver = {
.name = "cpcap-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(cpcap_regulator_id_table),
},
};
module_platform_driver(cpcap_regulator_driver);
MODULE_ALIAS("platform:cpcap-regulator");
MODULE_AUTHOR("Tony Lindgren <[email protected]>");
MODULE_DESCRIPTION("CPCAP regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/cpcap-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* dummy.c
*
* Copyright 2010 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <[email protected]>
*
* This is useful for systems with mixed controllable and
* non-controllable regulators, as well as for allowing testing on
* systems with no controllable regulators.
*/
#include <linux/err.h>
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include "dummy.h"
struct regulator_dev *dummy_regulator_rdev;
static const struct regulator_init_data dummy_initdata = {
.constraints = {
.always_on = 1,
},
};
static const struct regulator_ops dummy_ops;
static const struct regulator_desc dummy_desc = {
.name = "regulator-dummy",
.id = -1,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.ops = &dummy_ops,
};
static int dummy_regulator_probe(struct platform_device *pdev)
{
struct regulator_config config = { };
int ret;
config.dev = &pdev->dev;
config.init_data = &dummy_initdata;
dummy_regulator_rdev = devm_regulator_register(&pdev->dev, &dummy_desc,
&config);
if (IS_ERR(dummy_regulator_rdev)) {
ret = PTR_ERR(dummy_regulator_rdev);
pr_err("Failed to register regulator: %d\n", ret);
return ret;
}
return 0;
}
static struct platform_driver dummy_regulator_driver = {
.probe = dummy_regulator_probe,
.driver = {
.name = "reg-dummy",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static struct platform_device *dummy_pdev;
void __init regulator_dummy_init(void)
{
int ret;
dummy_pdev = platform_device_alloc("reg-dummy", -1);
if (!dummy_pdev) {
pr_err("Failed to allocate dummy regulator device\n");
return;
}
ret = platform_device_add(dummy_pdev);
if (ret != 0) {
pr_err("Failed to register dummy regulator device: %d\n", ret);
platform_device_put(dummy_pdev);
return;
}
ret = platform_driver_register(&dummy_regulator_driver);
if (ret != 0) {
pr_err("Failed to register dummy regulator driver: %d\n", ret);
platform_device_unregister(dummy_pdev);
}
}
| linux-master | drivers/regulator/dummy.c |
// SPDX-License-Identifier: GPL-2.0-or-later
//
// helpers.c -- Voltage/Current Regulator framework helper functions.
//
// Copyright 2007, 2008 Wolfson Microelectronics PLC.
// Copyright 2008 SlimLogic Ltd.
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include "internal.h"
/**
* regulator_is_enabled_regmap - standard is_enabled() for regmap users
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O can set the
* enable_reg and enable_mask fields in their descriptor and then use
* this as their is_enabled operation, saving some code.
*/
int regulator_is_enabled_regmap(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
if (ret != 0)
return ret;
val &= rdev->desc->enable_mask;
if (rdev->desc->enable_is_inverted) {
if (rdev->desc->enable_val)
return val != rdev->desc->enable_val;
return val == 0;
} else {
if (rdev->desc->enable_val)
return val == rdev->desc->enable_val;
return val != 0;
}
}
EXPORT_SYMBOL_GPL(regulator_is_enabled_regmap);
/**
* regulator_enable_regmap - standard enable() for regmap users
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O can set the
* enable_reg and enable_mask fields in their descriptor and then use
* this as their enable() operation, saving some code.
*/
int regulator_enable_regmap(struct regulator_dev *rdev)
{
unsigned int val;
if (rdev->desc->enable_is_inverted) {
val = rdev->desc->disable_val;
} else {
val = rdev->desc->enable_val;
if (!val)
val = rdev->desc->enable_mask;
}
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_enable_regmap);
/**
* regulator_disable_regmap - standard disable() for regmap users
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O can set the
* enable_reg and enable_mask fields in their descriptor and then use
* this as their disable() operation, saving some code.
*/
int regulator_disable_regmap(struct regulator_dev *rdev)
{
unsigned int val;
if (rdev->desc->enable_is_inverted) {
val = rdev->desc->enable_val;
if (!val)
val = rdev->desc->enable_mask;
} else {
val = rdev->desc->disable_val;
}
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_disable_regmap);
static int regulator_range_selector_to_index(struct regulator_dev *rdev,
unsigned int rval)
{
int i;
if (!rdev->desc->linear_range_selectors_bitfield)
return -EINVAL;
rval &= rdev->desc->vsel_range_mask;
rval >>= ffs(rdev->desc->vsel_range_mask) - 1;
for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
if (rdev->desc->linear_range_selectors_bitfield[i] == rval)
return i;
}
return -EINVAL;
}
/**
* regulator_get_voltage_sel_pickable_regmap - pickable range get_voltage_sel
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O and use pickable
* ranges can set the vsel_reg, vsel_mask, vsel_range_reg and vsel_range_mask
* fields in their descriptor and then use this as their get_voltage_vsel
* operation, saving some code.
*/
int regulator_get_voltage_sel_pickable_regmap(struct regulator_dev *rdev)
{
unsigned int r_val;
int range;
unsigned int val;
int ret;
unsigned int voltages = 0;
const struct linear_range *r = rdev->desc->linear_ranges;
if (!r)
return -EINVAL;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (ret != 0)
return ret;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_range_reg, &r_val);
if (ret != 0)
return ret;
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
range = regulator_range_selector_to_index(rdev, r_val);
if (range < 0)
return -EINVAL;
voltages = linear_range_values_in_range_array(r, range);
return val + voltages;
}
EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_pickable_regmap);
/**
* regulator_set_voltage_sel_pickable_regmap - pickable range set_voltage_sel
*
* @rdev: regulator to operate on
* @sel: Selector to set
*
* Regulators that use regmap for their register I/O and use pickable
* ranges can set the vsel_reg, vsel_mask, vsel_range_reg and vsel_range_mask
* fields in their descriptor and then use this as their set_voltage_vsel
* operation, saving some code.
*/
int regulator_set_voltage_sel_pickable_regmap(struct regulator_dev *rdev,
unsigned int sel)
{
unsigned int range;
int ret, i;
unsigned int voltages_in_range = 0;
for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
const struct linear_range *r;
r = &rdev->desc->linear_ranges[i];
voltages_in_range = linear_range_values_in_range(r);
if (sel < voltages_in_range)
break;
sel -= voltages_in_range;
}
if (i == rdev->desc->n_linear_ranges)
return -EINVAL;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
sel += rdev->desc->linear_ranges[i].min_sel;
range = rdev->desc->linear_range_selectors_bitfield[i];
range <<= ffs(rdev->desc->vsel_range_mask) - 1;
if (rdev->desc->vsel_reg == rdev->desc->vsel_range_reg) {
ret = regmap_update_bits(rdev->regmap,
rdev->desc->vsel_reg,
rdev->desc->vsel_range_mask |
rdev->desc->vsel_mask, sel | range);
} else {
ret = regmap_update_bits(rdev->regmap,
rdev->desc->vsel_range_reg,
rdev->desc->vsel_range_mask, range);
if (ret)
return ret;
ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
rdev->desc->vsel_mask, sel);
}
if (ret)
return ret;
if (rdev->desc->apply_bit)
ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg,
rdev->desc->apply_bit,
rdev->desc->apply_bit);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_pickable_regmap);
/**
* regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O can set the
* vsel_reg and vsel_mask fields in their descriptor and then use this
* as their get_voltage_vsel operation, saving some code.
*/
int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (ret != 0)
return ret;
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
return val;
}
EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap);
/**
* regulator_set_voltage_sel_regmap - standard set_voltage_sel for regmap users
*
* @rdev: regulator to operate on
* @sel: Selector to set
*
* Regulators that use regmap for their register I/O can set the
* vsel_reg and vsel_mask fields in their descriptor and then use this
* as their set_voltage_vsel operation, saving some code.
*/
int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel)
{
int ret;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
ret = regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
rdev->desc->vsel_mask, sel);
if (ret)
return ret;
if (rdev->desc->apply_bit)
ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg,
rdev->desc->apply_bit,
rdev->desc->apply_bit);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_sel_regmap);
/**
* regulator_map_voltage_iterate - map_voltage() based on list_voltage()
*
* @rdev: Regulator to operate on
* @min_uV: Lower bound for voltage
* @max_uV: Upper bound for voltage
*
* Drivers implementing set_voltage_sel() and list_voltage() can use
* this as their map_voltage() operation. It will find a suitable
* voltage by calling list_voltage() until it gets something in bounds
* for the requested voltages.
*/
int regulator_map_voltage_iterate(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
int best_val = INT_MAX;
int selector = 0;
int i, ret;
/* Find the smallest voltage that falls within the specified
* range.
*/
for (i = 0; i < rdev->desc->n_voltages; i++) {
ret = rdev->desc->ops->list_voltage(rdev, i);
if (ret < 0)
continue;
if (ret < best_val && ret >= min_uV && ret <= max_uV) {
best_val = ret;
selector = i;
}
}
if (best_val != INT_MAX)
return selector;
else
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_iterate);
/**
* regulator_map_voltage_ascend - map_voltage() for ascendant voltage list
*
* @rdev: Regulator to operate on
* @min_uV: Lower bound for voltage
* @max_uV: Upper bound for voltage
*
* Drivers that have ascendant voltage list can use this as their
* map_voltage() operation.
*/
int regulator_map_voltage_ascend(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
int i, ret;
for (i = 0; i < rdev->desc->n_voltages; i++) {
ret = rdev->desc->ops->list_voltage(rdev, i);
if (ret < 0)
continue;
if (ret > max_uV)
break;
if (ret >= min_uV && ret <= max_uV)
return i;
}
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_ascend);
/**
* regulator_map_voltage_linear - map_voltage() for simple linear mappings
*
* @rdev: Regulator to operate on
* @min_uV: Lower bound for voltage
* @max_uV: Upper bound for voltage
*
* Drivers providing min_uV and uV_step in their regulator_desc can
* use this as their map_voltage() operation.
*/
int regulator_map_voltage_linear(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
int ret, voltage;
/* Allow uV_step to be 0 for fixed voltage */
if (rdev->desc->n_voltages == 1 && rdev->desc->uV_step == 0) {
if (min_uV <= rdev->desc->min_uV && rdev->desc->min_uV <= max_uV)
return 0;
else
return -EINVAL;
}
if (!rdev->desc->uV_step) {
BUG_ON(!rdev->desc->uV_step);
return -EINVAL;
}
if (min_uV < rdev->desc->min_uV)
min_uV = rdev->desc->min_uV;
ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
if (ret < 0)
return ret;
ret += rdev->desc->linear_min_sel;
/* Map back into a voltage to verify we're still in bounds */
voltage = rdev->desc->ops->list_voltage(rdev, ret);
if (voltage < min_uV || voltage > max_uV)
return -EINVAL;
return ret;
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_linear);
/**
* regulator_map_voltage_linear_range - map_voltage() for multiple linear ranges
*
* @rdev: Regulator to operate on
* @min_uV: Lower bound for voltage
* @max_uV: Upper bound for voltage
*
* Drivers providing linear_ranges in their descriptor can use this as
* their map_voltage() callback.
*/
int regulator_map_voltage_linear_range(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
const struct linear_range *range;
int ret = -EINVAL;
unsigned int sel;
bool found;
int voltage, i;
if (!rdev->desc->n_linear_ranges) {
BUG_ON(!rdev->desc->n_linear_ranges);
return -EINVAL;
}
for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
range = &rdev->desc->linear_ranges[i];
ret = linear_range_get_selector_high(range, min_uV, &sel,
&found);
if (ret)
continue;
ret = sel;
/*
* Map back into a voltage to verify we're still in bounds.
* If we are not, then continue checking rest of the ranges.
*/
voltage = rdev->desc->ops->list_voltage(rdev, sel);
if (voltage >= min_uV && voltage <= max_uV)
break;
}
if (i == rdev->desc->n_linear_ranges)
return -EINVAL;
return ret;
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range);
/**
* regulator_map_voltage_pickable_linear_range - map_voltage, pickable ranges
*
* @rdev: Regulator to operate on
* @min_uV: Lower bound for voltage
* @max_uV: Upper bound for voltage
*
* Drivers providing pickable linear_ranges in their descriptor can use
* this as their map_voltage() callback.
*/
int regulator_map_voltage_pickable_linear_range(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
const struct linear_range *range;
int ret = -EINVAL;
int voltage, i;
unsigned int selector = 0;
if (!rdev->desc->n_linear_ranges) {
BUG_ON(!rdev->desc->n_linear_ranges);
return -EINVAL;
}
for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
int linear_max_uV;
bool found;
unsigned int sel;
range = &rdev->desc->linear_ranges[i];
linear_max_uV = linear_range_get_max_value(range);
if (!(min_uV <= linear_max_uV && max_uV >= range->min)) {
selector += linear_range_values_in_range(range);
continue;
}
ret = linear_range_get_selector_high(range, min_uV, &sel,
&found);
if (ret) {
selector += linear_range_values_in_range(range);
continue;
}
ret = selector + sel - range->min_sel;
voltage = rdev->desc->ops->list_voltage(rdev, ret);
/*
* Map back into a voltage to verify we're still in bounds.
* We may have overlapping voltage ranges. Hence we don't
* exit but retry until we have checked all ranges.
*/
if (voltage < min_uV || voltage > max_uV)
selector += linear_range_values_in_range(range);
else
break;
}
if (i == rdev->desc->n_linear_ranges)
return -EINVAL;
return ret;
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_pickable_linear_range);
/**
* regulator_desc_list_voltage_linear - List voltages with simple calculation
*
* @desc: Regulator desc for regulator which volatges are to be listed
* @selector: Selector to convert into a voltage
*
* Regulators with a simple linear mapping between voltages and
* selectors can set min_uV and uV_step in the regulator descriptor
* and then use this function prior regulator registration to list
* the voltages. This is useful when voltages need to be listed during
* device-tree parsing.
*/
int regulator_desc_list_voltage_linear(const struct regulator_desc *desc,
unsigned int selector)
{
if (selector >= desc->n_voltages)
return -EINVAL;
if (selector < desc->linear_min_sel)
return 0;
selector -= desc->linear_min_sel;
return desc->min_uV + (desc->uV_step * selector);
}
EXPORT_SYMBOL_GPL(regulator_desc_list_voltage_linear);
/**
* regulator_list_voltage_linear - List voltages with simple calculation
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a simple linear mapping between voltages and
* selectors can set min_uV and uV_step in the regulator descriptor
* and then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear(struct regulator_dev *rdev,
unsigned int selector)
{
return regulator_desc_list_voltage_linear(rdev->desc, selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear);
/**
* regulator_list_voltage_pickable_linear_range - pickable range list voltages
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* list_voltage() operation, intended to be used by drivers utilizing pickable
* ranges helpers.
*/
int regulator_list_voltage_pickable_linear_range(struct regulator_dev *rdev,
unsigned int selector)
{
const struct linear_range *range;
int i;
unsigned int all_sels = 0;
if (!rdev->desc->n_linear_ranges) {
BUG_ON(!rdev->desc->n_linear_ranges);
return -EINVAL;
}
for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
unsigned int sel_indexes;
range = &rdev->desc->linear_ranges[i];
sel_indexes = linear_range_values_in_range(range) - 1;
if (all_sels + sel_indexes >= selector) {
selector -= all_sels;
/*
* As we see here, pickable ranges work only as
* long as the first selector for each pickable
* range is 0, and the each subsequent range for
* this 'pick' follow immediately at next unused
* selector (Eg. there is no gaps between ranges).
* I think this is fine but it probably should be
* documented. OTOH, whole pickable range stuff
* might benefit from some documentation
*/
return range->min + (range->step * selector);
}
all_sels += (sel_indexes + 1);
}
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_pickable_linear_range);
/**
* regulator_desc_list_voltage_linear_range - List voltages for linear ranges
*
* @desc: Regulator desc for regulator which volatges are to be listed
* @selector: Selector to convert into a voltage
*
* Regulators with a series of simple linear mappings between voltages
* and selectors who have set linear_ranges in the regulator descriptor
* can use this function prior regulator registration to list voltages.
* This is useful when voltages need to be listed during device-tree
* parsing.
*/
int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc,
unsigned int selector)
{
unsigned int val;
int ret;
BUG_ON(!desc->n_linear_ranges);
ret = linear_range_get_value_array(desc->linear_ranges,
desc->n_linear_ranges, selector,
&val);
if (ret)
return ret;
return val;
}
EXPORT_SYMBOL_GPL(regulator_desc_list_voltage_linear_range);
/**
* regulator_list_voltage_linear_range - List voltages for linear ranges
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a series of simple linear mappings between voltages
* and selectors can set linear_ranges in the regulator descriptor and
* then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear_range(struct regulator_dev *rdev,
unsigned int selector)
{
return regulator_desc_list_voltage_linear_range(rdev->desc, selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear_range);
/**
* regulator_list_voltage_table - List voltages with table based mapping
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with table based mapping between voltages and
* selectors can set volt_table in the regulator descriptor
* and then use this function as their list_voltage() operation.
*/
int regulator_list_voltage_table(struct regulator_dev *rdev,
unsigned int selector)
{
if (!rdev->desc->volt_table) {
BUG_ON(!rdev->desc->volt_table);
return -EINVAL;
}
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector < rdev->desc->linear_min_sel)
return 0;
return rdev->desc->volt_table[selector];
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_table);
/**
* regulator_set_bypass_regmap - Default set_bypass() using regmap
*
* @rdev: device to operate on.
* @enable: state to set.
*/
int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable)
{
unsigned int val;
if (enable) {
val = rdev->desc->bypass_val_on;
if (!val)
val = rdev->desc->bypass_mask;
} else {
val = rdev->desc->bypass_val_off;
}
return regmap_update_bits(rdev->regmap, rdev->desc->bypass_reg,
rdev->desc->bypass_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap);
/**
* regulator_set_soft_start_regmap - Default set_soft_start() using regmap
*
* @rdev: device to operate on.
*/
int regulator_set_soft_start_regmap(struct regulator_dev *rdev)
{
unsigned int val;
val = rdev->desc->soft_start_val_on;
if (!val)
val = rdev->desc->soft_start_mask;
return regmap_update_bits(rdev->regmap, rdev->desc->soft_start_reg,
rdev->desc->soft_start_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_set_soft_start_regmap);
/**
* regulator_set_pull_down_regmap - Default set_pull_down() using regmap
*
* @rdev: device to operate on.
*/
int regulator_set_pull_down_regmap(struct regulator_dev *rdev)
{
unsigned int val;
val = rdev->desc->pull_down_val_on;
if (!val)
val = rdev->desc->pull_down_mask;
return regmap_update_bits(rdev->regmap, rdev->desc->pull_down_reg,
rdev->desc->pull_down_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_set_pull_down_regmap);
/**
* regulator_get_bypass_regmap - Default get_bypass() using regmap
*
* @rdev: device to operate on.
* @enable: current state.
*/
int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
{
unsigned int val;
unsigned int val_on = rdev->desc->bypass_val_on;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val);
if (ret != 0)
return ret;
if (!val_on)
val_on = rdev->desc->bypass_mask;
*enable = (val & rdev->desc->bypass_mask) == val_on;
return 0;
}
EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap);
/**
* regulator_set_active_discharge_regmap - Default set_active_discharge()
* using regmap
*
* @rdev: device to operate on.
* @enable: state to set, 0 to disable and 1 to enable.
*/
int regulator_set_active_discharge_regmap(struct regulator_dev *rdev,
bool enable)
{
unsigned int val;
if (enable)
val = rdev->desc->active_discharge_on;
else
val = rdev->desc->active_discharge_off;
return regmap_update_bits(rdev->regmap,
rdev->desc->active_discharge_reg,
rdev->desc->active_discharge_mask, val);
}
EXPORT_SYMBOL_GPL(regulator_set_active_discharge_regmap);
/**
* regulator_set_current_limit_regmap - set_current_limit for regmap users
*
* @rdev: regulator to operate on
* @min_uA: Lower bound for current limit
* @max_uA: Upper bound for current limit
*
* Regulators that use regmap for their register I/O can set curr_table,
* csel_reg and csel_mask fields in their descriptor and then use this
* as their set_current_limit operation, saving some code.
*/
int regulator_set_current_limit_regmap(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
unsigned int n_currents = rdev->desc->n_current_limits;
int i, sel = -1;
if (n_currents == 0)
return -EINVAL;
if (rdev->desc->curr_table) {
const unsigned int *curr_table = rdev->desc->curr_table;
bool ascend = curr_table[n_currents - 1] > curr_table[0];
/* search for closest to maximum */
if (ascend) {
for (i = n_currents - 1; i >= 0; i--) {
if (min_uA <= curr_table[i] &&
curr_table[i] <= max_uA) {
sel = i;
break;
}
}
} else {
for (i = 0; i < n_currents; i++) {
if (min_uA <= curr_table[i] &&
curr_table[i] <= max_uA) {
sel = i;
break;
}
}
}
}
if (sel < 0)
return -EINVAL;
sel <<= ffs(rdev->desc->csel_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->csel_reg,
rdev->desc->csel_mask, sel);
}
EXPORT_SYMBOL_GPL(regulator_set_current_limit_regmap);
/**
* regulator_get_current_limit_regmap - get_current_limit for regmap users
*
* @rdev: regulator to operate on
*
* Regulators that use regmap for their register I/O can set the
* csel_reg and csel_mask fields in their descriptor and then use this
* as their get_current_limit operation, saving some code.
*/
int regulator_get_current_limit_regmap(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->csel_reg, &val);
if (ret != 0)
return ret;
val &= rdev->desc->csel_mask;
val >>= ffs(rdev->desc->csel_mask) - 1;
if (rdev->desc->curr_table) {
if (val >= rdev->desc->n_current_limits)
return -EINVAL;
return rdev->desc->curr_table[val];
}
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_get_current_limit_regmap);
/**
* regulator_bulk_set_supply_names - initialize the 'supply' fields in an array
* of regulator_bulk_data structs
*
* @consumers: array of regulator_bulk_data entries to initialize
* @supply_names: array of supply name strings
* @num_supplies: number of supply names to initialize
*
* Note: the 'consumers' array must be the size of 'num_supplies'.
*/
void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
const char *const *supply_names,
unsigned int num_supplies)
{
unsigned int i;
for (i = 0; i < num_supplies; i++)
consumers[i].supply = supply_names[i];
}
EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);
/**
* regulator_is_equal - test whether two regulators are the same
*
* @reg1: first regulator to operate on
* @reg2: second regulator to operate on
*/
bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2)
{
return reg1->rdev == reg2->rdev;
}
EXPORT_SYMBOL_GPL(regulator_is_equal);
/**
* regulator_find_closest_bigger - helper to find offset in ramp delay table
*
* @target: targeted ramp_delay
* @table: table with supported ramp delays
* @num_sel: number of entries in the table
* @sel: Pointer to store table offset
*
* This is the internal helper used by regulator_set_ramp_delay_regmap to
* map ramp delay to register value. It should only be used directly if
* regulator_set_ramp_delay_regmap cannot handle a specific device setup
* (e.g. because the value is split over multiple registers).
*/
int regulator_find_closest_bigger(unsigned int target, const unsigned int *table,
unsigned int num_sel, unsigned int *sel)
{
unsigned int s, tmp, max, maxsel = 0;
bool found = false;
max = table[0];
for (s = 0; s < num_sel; s++) {
if (table[s] > max) {
max = table[s];
maxsel = s;
}
if (table[s] >= target) {
if (!found || table[s] - target < tmp - target) {
tmp = table[s];
*sel = s;
found = true;
if (tmp == target)
break;
}
}
}
if (!found) {
*sel = maxsel;
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL_GPL(regulator_find_closest_bigger);
/**
* regulator_set_ramp_delay_regmap - set_ramp_delay() helper
*
* @rdev: regulator to operate on
* @ramp_delay: ramp-rate value given in units V/S (uV/uS)
*
* Regulators that use regmap for their register I/O can set the ramp_reg
* and ramp_mask fields in their descriptor and then use this as their
* set_ramp_delay operation, saving some code.
*/
int regulator_set_ramp_delay_regmap(struct regulator_dev *rdev, int ramp_delay)
{
int ret;
unsigned int sel;
if (WARN_ON(!rdev->desc->n_ramp_values || !rdev->desc->ramp_delay_table))
return -EINVAL;
ret = regulator_find_closest_bigger(ramp_delay, rdev->desc->ramp_delay_table,
rdev->desc->n_ramp_values, &sel);
if (ret) {
dev_warn(rdev_get_dev(rdev),
"Can't set ramp-delay %u, setting %u\n", ramp_delay,
rdev->desc->ramp_delay_table[sel]);
}
sel <<= ffs(rdev->desc->ramp_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->ramp_reg,
rdev->desc->ramp_mask, sel);
}
EXPORT_SYMBOL_GPL(regulator_set_ramp_delay_regmap);
| linux-master | drivers/regulator/helpers.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018-2021, The Linux Foundation. All rights reserved.
#define pr_fmt(fmt) "%s: " fmt, __func__
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <soc/qcom/cmd-db.h>
#include <soc/qcom/rpmh.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
/**
* enum rpmh_regulator_type - supported RPMh accelerator types
* @VRM: RPMh VRM accelerator which supports voting on enable, voltage,
* and mode of LDO, SMPS, and BOB type PMIC regulators.
* @XOB: RPMh XOB accelerator which supports voting on the enable state
* of PMIC regulators.
*/
enum rpmh_regulator_type {
VRM,
XOB,
};
#define RPMH_REGULATOR_REG_VRM_VOLTAGE 0x0
#define RPMH_REGULATOR_REG_ENABLE 0x4
#define RPMH_REGULATOR_REG_VRM_MODE 0x8
#define PMIC4_LDO_MODE_RETENTION 4
#define PMIC4_LDO_MODE_LPM 5
#define PMIC4_LDO_MODE_HPM 7
#define PMIC4_SMPS_MODE_RETENTION 4
#define PMIC4_SMPS_MODE_PFM 5
#define PMIC4_SMPS_MODE_AUTO 6
#define PMIC4_SMPS_MODE_PWM 7
#define PMIC4_BOB_MODE_PASS 0
#define PMIC4_BOB_MODE_PFM 1
#define PMIC4_BOB_MODE_AUTO 2
#define PMIC4_BOB_MODE_PWM 3
#define PMIC5_LDO_MODE_RETENTION 3
#define PMIC5_LDO_MODE_LPM 4
#define PMIC5_LDO_MODE_HPM 7
#define PMIC5_SMPS_MODE_RETENTION 3
#define PMIC5_SMPS_MODE_PFM 4
#define PMIC5_SMPS_MODE_AUTO 6
#define PMIC5_SMPS_MODE_PWM 7
#define PMIC5_BOB_MODE_PASS 2
#define PMIC5_BOB_MODE_PFM 4
#define PMIC5_BOB_MODE_AUTO 6
#define PMIC5_BOB_MODE_PWM 7
/**
* struct rpmh_vreg_hw_data - RPMh regulator hardware configurations
* @regulator_type: RPMh accelerator type used to manage this
* regulator
* @ops: Pointer to regulator ops callback structure
* @voltage_range: The single range of voltages supported by this
* PMIC regulator type
* @n_voltages: The number of unique voltage set points defined
* by voltage_range
* @hpm_min_load_uA: Minimum load current in microamps that requires
* high power mode (HPM) operation. This is used
* for LDO hardware type regulators only.
* @pmic_mode_map: Array indexed by regulator framework mode
* containing PMIC hardware modes. Must be large
* enough to index all framework modes supported
* by this regulator hardware type.
* @of_map_mode: Maps an RPMH_REGULATOR_MODE_* mode value defined
* in device tree to a regulator framework mode
*/
struct rpmh_vreg_hw_data {
enum rpmh_regulator_type regulator_type;
const struct regulator_ops *ops;
const struct linear_range voltage_range;
int n_voltages;
int hpm_min_load_uA;
const int *pmic_mode_map;
unsigned int (*of_map_mode)(unsigned int mode);
};
/**
* struct rpmh_vreg - individual RPMh regulator data structure encapsulating a
* single regulator device
* @dev: Device pointer for the top-level PMIC RPMh
* regulator parent device. This is used as a
* handle in RPMh write requests.
* @addr: Base address of the regulator resource within
* an RPMh accelerator
* @rdesc: Regulator descriptor
* @hw_data: PMIC regulator configuration data for this RPMh
* regulator
* @always_wait_for_ack: Boolean flag indicating if a request must always
* wait for an ACK from RPMh before continuing even
* if it corresponds to a strictly lower power
* state (e.g. enabled --> disabled).
* @enabled: Flag indicating if the regulator is enabled or
* not
* @bypassed: Boolean indicating if the regulator is in
* bypass (pass-through) mode or not. This is
* only used by BOB rpmh-regulator resources.
* @voltage_selector: Selector used for get_voltage_sel() and
* set_voltage_sel() callbacks
* @mode: RPMh VRM regulator current framework mode
*/
struct rpmh_vreg {
struct device *dev;
u32 addr;
struct regulator_desc rdesc;
const struct rpmh_vreg_hw_data *hw_data;
bool always_wait_for_ack;
int enabled;
bool bypassed;
int voltage_selector;
unsigned int mode;
};
/**
* struct rpmh_vreg_init_data - initialization data for an RPMh regulator
* @name: Name for the regulator which also corresponds
* to the device tree subnode name of the regulator
* @resource_name: RPMh regulator resource name format string.
* This must include exactly one field: '%s' which
* is filled at run-time with the PMIC ID provided
* by device tree property qcom,pmic-id. Example:
* "ldo%s1" for RPMh resource "ldoa1".
* @supply_name: Parent supply regulator name
* @hw_data: Configuration data for this PMIC regulator type
*/
struct rpmh_vreg_init_data {
const char *name;
const char *resource_name;
const char *supply_name;
const struct rpmh_vreg_hw_data *hw_data;
};
/**
* rpmh_regulator_send_request() - send the request to RPMh
* @vreg: Pointer to the RPMh regulator
* @cmd: Pointer to the RPMh command to send
* @wait_for_ack: Boolean indicating if execution must wait until the
* request has been acknowledged as complete
*
* Return: 0 on success, errno on failure
*/
static int rpmh_regulator_send_request(struct rpmh_vreg *vreg,
struct tcs_cmd *cmd, bool wait_for_ack)
{
int ret;
if (wait_for_ack || vreg->always_wait_for_ack)
ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1);
else
ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd,
1);
return ret;
}
static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector, bool wait_for_ack)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
struct tcs_cmd cmd = {
.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE,
};
int ret;
/* VRM voltage control register is set with voltage in millivolts. */
cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev,
selector), 1000);
ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack);
if (!ret)
vreg->voltage_selector = selector;
return ret;
}
static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
if (vreg->enabled == -EINVAL) {
/*
* Cache the voltage and send it later when the regulator is
* enabled or disabled.
*/
vreg->voltage_selector = selector;
return 0;
}
return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector,
selector > vreg->voltage_selector);
}
static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
return vreg->voltage_selector;
}
static int rpmh_regulator_is_enabled(struct regulator_dev *rdev)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
return vreg->enabled;
}
static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev,
bool enable)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
struct tcs_cmd cmd = {
.addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE,
.data = enable,
};
int ret;
if (vreg->enabled == -EINVAL &&
vreg->voltage_selector != -ENOTRECOVERABLE) {
ret = _rpmh_regulator_vrm_set_voltage_sel(rdev,
vreg->voltage_selector, true);
if (ret < 0)
return ret;
}
ret = rpmh_regulator_send_request(vreg, &cmd, enable);
if (!ret)
vreg->enabled = enable;
return ret;
}
static int rpmh_regulator_enable(struct regulator_dev *rdev)
{
return rpmh_regulator_set_enable_state(rdev, true);
}
static int rpmh_regulator_disable(struct regulator_dev *rdev)
{
return rpmh_regulator_set_enable_state(rdev, false);
}
static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg,
unsigned int mode, bool bypassed)
{
struct tcs_cmd cmd = {
.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE,
};
int pmic_mode;
if (mode > REGULATOR_MODE_STANDBY)
return -EINVAL;
pmic_mode = vreg->hw_data->pmic_mode_map[mode];
if (pmic_mode < 0)
return pmic_mode;
if (bypassed)
cmd.data = PMIC4_BOB_MODE_PASS;
else
cmd.data = pmic_mode;
return rpmh_regulator_send_request(vreg, &cmd, true);
}
static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
int ret;
if (mode == vreg->mode)
return 0;
ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed);
if (!ret)
vreg->mode = mode;
return ret;
}
static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
return vreg->mode;
}
/**
* rpmh_regulator_vrm_get_optimum_mode() - get the mode based on the load
* @rdev: Regulator device pointer for the rpmh-regulator
* @input_uV: Input voltage
* @output_uV: Output voltage
* @load_uA: Aggregated load current in microamps
*
* This function is used in the regulator_ops for VRM type RPMh regulator
* devices.
*
* Return: 0 on success, errno on failure
*/
static unsigned int rpmh_regulator_vrm_get_optimum_mode(
struct regulator_dev *rdev, int input_uV, int output_uV, int load_uA)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
if (load_uA >= vreg->hw_data->hpm_min_load_uA)
return REGULATOR_MODE_NORMAL;
else
return REGULATOR_MODE_IDLE;
}
static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev,
bool enable)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
int ret;
if (vreg->bypassed == enable)
return 0;
ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable);
if (!ret)
vreg->bypassed = enable;
return ret;
}
static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev,
bool *enable)
{
struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
*enable = vreg->bypassed;
return 0;
}
static const struct regulator_ops rpmh_regulator_vrm_ops = {
.enable = rpmh_regulator_enable,
.disable = rpmh_regulator_disable,
.is_enabled = rpmh_regulator_is_enabled,
.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.set_mode = rpmh_regulator_vrm_set_mode,
.get_mode = rpmh_regulator_vrm_get_mode,
};
static const struct regulator_ops rpmh_regulator_vrm_drms_ops = {
.enable = rpmh_regulator_enable,
.disable = rpmh_regulator_disable,
.is_enabled = rpmh_regulator_is_enabled,
.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.set_mode = rpmh_regulator_vrm_set_mode,
.get_mode = rpmh_regulator_vrm_get_mode,
.get_optimum_mode = rpmh_regulator_vrm_get_optimum_mode,
};
static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = {
.enable = rpmh_regulator_enable,
.disable = rpmh_regulator_disable,
.is_enabled = rpmh_regulator_is_enabled,
.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.set_mode = rpmh_regulator_vrm_set_mode,
.get_mode = rpmh_regulator_vrm_get_mode,
.set_bypass = rpmh_regulator_vrm_set_bypass,
.get_bypass = rpmh_regulator_vrm_get_bypass,
};
static const struct regulator_ops rpmh_regulator_xob_ops = {
.enable = rpmh_regulator_enable,
.disable = rpmh_regulator_disable,
.is_enabled = rpmh_regulator_is_enabled,
};
/**
* rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator
* @vreg: Pointer to the individual rpmh-regulator resource
* @dev: Pointer to the top level rpmh-regulator PMIC device
* @node: Pointer to the individual rpmh-regulator resource
* device node
* @pmic_id: String used to identify the top level rpmh-regulator
* PMIC device on the board
* @pmic_rpmh_data: Pointer to a null-terminated array of rpmh-regulator
* resources defined for the top level PMIC device
*
* Return: 0 on success, errno on failure
*/
static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev,
struct device_node *node, const char *pmic_id,
const struct rpmh_vreg_init_data *pmic_rpmh_data)
{
struct regulator_config reg_config = {};
char rpmh_resource_name[20] = "";
const struct rpmh_vreg_init_data *rpmh_data;
struct regulator_init_data *init_data;
struct regulator_dev *rdev;
int ret;
vreg->dev = dev;
for (rpmh_data = pmic_rpmh_data; rpmh_data->name; rpmh_data++)
if (of_node_name_eq(node, rpmh_data->name))
break;
if (!rpmh_data->name) {
dev_err(dev, "Unknown regulator %pOFn\n", node);
return -EINVAL;
}
scnprintf(rpmh_resource_name, sizeof(rpmh_resource_name),
rpmh_data->resource_name, pmic_id);
vreg->addr = cmd_db_read_addr(rpmh_resource_name);
if (!vreg->addr) {
dev_err(dev, "%pOFn: could not find RPMh address for resource %s\n",
node, rpmh_resource_name);
return -ENODEV;
}
vreg->rdesc.name = rpmh_data->name;
vreg->rdesc.supply_name = rpmh_data->supply_name;
vreg->hw_data = rpmh_data->hw_data;
vreg->enabled = -EINVAL;
vreg->voltage_selector = -ENOTRECOVERABLE;
vreg->mode = REGULATOR_MODE_INVALID;
if (rpmh_data->hw_data->n_voltages) {
vreg->rdesc.linear_ranges = &rpmh_data->hw_data->voltage_range;
vreg->rdesc.n_linear_ranges = 1;
vreg->rdesc.n_voltages = rpmh_data->hw_data->n_voltages;
}
vreg->always_wait_for_ack = of_property_read_bool(node,
"qcom,always-wait-for-ack");
vreg->rdesc.owner = THIS_MODULE;
vreg->rdesc.type = REGULATOR_VOLTAGE;
vreg->rdesc.ops = vreg->hw_data->ops;
vreg->rdesc.of_map_mode = vreg->hw_data->of_map_mode;
init_data = of_get_regulator_init_data(dev, node, &vreg->rdesc);
if (!init_data)
return -ENOMEM;
if (rpmh_data->hw_data->regulator_type == XOB &&
init_data->constraints.min_uV &&
init_data->constraints.min_uV == init_data->constraints.max_uV) {
vreg->rdesc.fixed_uV = init_data->constraints.min_uV;
vreg->rdesc.n_voltages = 1;
}
reg_config.dev = dev;
reg_config.init_data = init_data;
reg_config.of_node = node;
reg_config.driver_data = vreg;
rdev = devm_regulator_register(dev, &vreg->rdesc, ®_config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n",
node, ret);
return ret;
}
dev_dbg(dev, "%pOFn regulator registered for RPMh resource %s @ 0x%05X\n",
node, rpmh_resource_name, vreg->addr);
return 0;
}
static const int pmic_mode_map_pmic4_ldo[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = PMIC4_LDO_MODE_RETENTION,
[REGULATOR_MODE_IDLE] = PMIC4_LDO_MODE_LPM,
[REGULATOR_MODE_NORMAL] = PMIC4_LDO_MODE_HPM,
[REGULATOR_MODE_FAST] = -EINVAL,
};
static const int pmic_mode_map_pmic5_ldo[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = PMIC5_LDO_MODE_RETENTION,
[REGULATOR_MODE_IDLE] = PMIC5_LDO_MODE_LPM,
[REGULATOR_MODE_NORMAL] = PMIC5_LDO_MODE_HPM,
[REGULATOR_MODE_FAST] = -EINVAL,
};
static unsigned int rpmh_regulator_pmic4_ldo_of_map_mode(unsigned int rpmh_mode)
{
unsigned int mode;
switch (rpmh_mode) {
case RPMH_REGULATOR_MODE_HPM:
mode = REGULATOR_MODE_NORMAL;
break;
case RPMH_REGULATOR_MODE_LPM:
mode = REGULATOR_MODE_IDLE;
break;
case RPMH_REGULATOR_MODE_RET:
mode = REGULATOR_MODE_STANDBY;
break;
default:
mode = REGULATOR_MODE_INVALID;
break;
}
return mode;
}
static const int pmic_mode_map_pmic4_smps[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = PMIC4_SMPS_MODE_RETENTION,
[REGULATOR_MODE_IDLE] = PMIC4_SMPS_MODE_PFM,
[REGULATOR_MODE_NORMAL] = PMIC4_SMPS_MODE_AUTO,
[REGULATOR_MODE_FAST] = PMIC4_SMPS_MODE_PWM,
};
static const int pmic_mode_map_pmic5_smps[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = PMIC5_SMPS_MODE_RETENTION,
[REGULATOR_MODE_IDLE] = PMIC5_SMPS_MODE_PFM,
[REGULATOR_MODE_NORMAL] = PMIC5_SMPS_MODE_AUTO,
[REGULATOR_MODE_FAST] = PMIC5_SMPS_MODE_PWM,
};
static unsigned int
rpmh_regulator_pmic4_smps_of_map_mode(unsigned int rpmh_mode)
{
unsigned int mode;
switch (rpmh_mode) {
case RPMH_REGULATOR_MODE_HPM:
mode = REGULATOR_MODE_FAST;
break;
case RPMH_REGULATOR_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case RPMH_REGULATOR_MODE_LPM:
mode = REGULATOR_MODE_IDLE;
break;
case RPMH_REGULATOR_MODE_RET:
mode = REGULATOR_MODE_STANDBY;
break;
default:
mode = REGULATOR_MODE_INVALID;
break;
}
return mode;
}
static const int pmic_mode_map_pmic4_bob[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = -EINVAL,
[REGULATOR_MODE_IDLE] = PMIC4_BOB_MODE_PFM,
[REGULATOR_MODE_NORMAL] = PMIC4_BOB_MODE_AUTO,
[REGULATOR_MODE_FAST] = PMIC4_BOB_MODE_PWM,
};
static const int pmic_mode_map_pmic5_bob[REGULATOR_MODE_STANDBY + 1] = {
[REGULATOR_MODE_INVALID] = -EINVAL,
[REGULATOR_MODE_STANDBY] = -EINVAL,
[REGULATOR_MODE_IDLE] = PMIC5_BOB_MODE_PFM,
[REGULATOR_MODE_NORMAL] = PMIC5_BOB_MODE_AUTO,
[REGULATOR_MODE_FAST] = PMIC5_BOB_MODE_PWM,
};
static unsigned int rpmh_regulator_pmic4_bob_of_map_mode(unsigned int rpmh_mode)
{
unsigned int mode;
switch (rpmh_mode) {
case RPMH_REGULATOR_MODE_HPM:
mode = REGULATOR_MODE_FAST;
break;
case RPMH_REGULATOR_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case RPMH_REGULATOR_MODE_LPM:
mode = REGULATOR_MODE_IDLE;
break;
default:
mode = REGULATOR_MODE_INVALID;
break;
}
return mode;
}
static const struct rpmh_vreg_hw_data pmic4_pldo = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000),
.n_voltages = 256,
.hpm_min_load_uA = 10000,
.pmic_mode_map = pmic_mode_map_pmic4_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_pldo_lv = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000),
.n_voltages = 128,
.hpm_min_load_uA = 10000,
.pmic_mode_map = pmic_mode_map_pmic4_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_nldo = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000),
.n_voltages = 128,
.hpm_min_load_uA = 30000,
.pmic_mode_map = pmic_mode_map_pmic4_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_hfsmps3 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
.n_voltages = 216,
.pmic_mode_map = pmic_mode_map_pmic4_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_ftsmps426 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000),
.n_voltages = 259,
.pmic_mode_map = pmic_mode_map_pmic4_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_bob = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_bypass_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000),
.n_voltages = 84,
.pmic_mode_map = pmic_mode_map_pmic4_bob,
.of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic4_lvs = {
.regulator_type = XOB,
.ops = &rpmh_regulator_xob_ops,
/* LVS hardware does not support voltage or mode configuration. */
};
static const struct rpmh_vreg_hw_data pmic5_pldo = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 255, 8000),
.n_voltages = 256,
.hpm_min_load_uA = 10000,
.pmic_mode_map = pmic_mode_map_pmic5_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_pldo_lv = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1504000, 0, 62, 8000),
.n_voltages = 63,
.hpm_min_load_uA = 10000,
.pmic_mode_map = pmic_mode_map_pmic5_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_pldo515_mv = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(1800000, 0, 187, 8000),
.n_voltages = 188,
.hpm_min_load_uA = 10000,
.pmic_mode_map = pmic_mode_map_pmic5_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_nldo = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 123, 8000),
.n_voltages = 124,
.hpm_min_load_uA = 30000,
.pmic_mode_map = pmic_mode_map_pmic5_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_nldo515 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_drms_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 210, 8000),
.n_voltages = 211,
.hpm_min_load_uA = 30000,
.pmic_mode_map = pmic_mode_map_pmic5_ldo,
.of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_hfsmps510 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
.n_voltages = 216,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_ftsmps510 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 263, 4000),
.n_voltages = 264,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_ftsmps520 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 263, 4000),
.n_voltages = 264,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_ftsmps525_lv = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(300000, 0, 267, 4000),
.n_voltages = 268,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_ftsmps525_mv = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(600000, 0, 267, 8000),
.n_voltages = 268,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_ftsmps527 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
.n_voltages = 215,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_hfsmps515 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 235, 16000),
.n_voltages = 236,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_hfsmps515_1 = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(900000, 0, 4, 16000),
.n_voltages = 5,
.pmic_mode_map = pmic_mode_map_pmic5_smps,
.of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode,
};
static const struct rpmh_vreg_hw_data pmic5_bob = {
.regulator_type = VRM,
.ops = &rpmh_regulator_vrm_bypass_ops,
.voltage_range = REGULATOR_LINEAR_RANGE(3000000, 0, 31, 32000),
.n_voltages = 32,
.pmic_mode_map = pmic_mode_map_pmic5_bob,
.of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode,
};
#define RPMH_VREG(_name, _resource_name, _hw_data, _supply_name) \
{ \
.name = _name, \
.resource_name = _resource_name, \
.hw_data = _hw_data, \
.supply_name = _supply_name, \
}
static const struct rpmh_vreg_init_data pm8998_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic4_hfsmps3, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic4_hfsmps3, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic4_hfsmps3, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic4_ftsmps426, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic4_ftsmps426, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic4_ftsmps426, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic4_ftsmps426, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic4_ftsmps426, "vdd-s10"),
RPMH_VREG("smps11", "smp%s11", &pmic4_ftsmps426, "vdd-s11"),
RPMH_VREG("smps12", "smp%s12", &pmic4_ftsmps426, "vdd-s12"),
RPMH_VREG("smps13", "smp%s13", &pmic4_ftsmps426, "vdd-s13"),
RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l27"),
RPMH_VREG("ldo2", "ldo%s2", &pmic4_nldo, "vdd-l2-l8-l17"),
RPMH_VREG("ldo3", "ldo%s3", &pmic4_nldo, "vdd-l3-l11"),
RPMH_VREG("ldo4", "ldo%s4", &pmic4_nldo, "vdd-l4-l5"),
RPMH_VREG("ldo5", "ldo%s5", &pmic4_nldo, "vdd-l4-l5"),
RPMH_VREG("ldo6", "ldo%s6", &pmic4_pldo, "vdd-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo8", "ldo%s8", &pmic4_nldo, "vdd-l2-l8-l17"),
RPMH_VREG("ldo9", "ldo%s9", &pmic4_pldo, "vdd-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic4_pldo, "vdd-l10-l23-l25"),
RPMH_VREG("ldo11", "ldo%s11", &pmic4_nldo, "vdd-l3-l11"),
RPMH_VREG("ldo12", "ldo%s12", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo13", "ldo%s13", &pmic4_pldo, "vdd-l13-l19-l21"),
RPMH_VREG("ldo14", "ldo%s14", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo15", "ldo%s15", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic4_pldo, "vdd-l16-l28"),
RPMH_VREG("ldo17", "ldo%s17", &pmic4_nldo, "vdd-l2-l8-l17"),
RPMH_VREG("ldo18", "ldo%s18", &pmic4_pldo, "vdd-l18-l22"),
RPMH_VREG("ldo19", "ldo%s19", &pmic4_pldo, "vdd-l13-l19-l21"),
RPMH_VREG("ldo20", "ldo%s20", &pmic4_pldo, "vdd-l20-l24"),
RPMH_VREG("ldo21", "ldo%s21", &pmic4_pldo, "vdd-l13-l19-l21"),
RPMH_VREG("ldo22", "ldo%s22", &pmic4_pldo, "vdd-l18-l22"),
RPMH_VREG("ldo23", "ldo%s23", &pmic4_pldo, "vdd-l10-l23-l25"),
RPMH_VREG("ldo24", "ldo%s24", &pmic4_pldo, "vdd-l20-l24"),
RPMH_VREG("ldo25", "ldo%s25", &pmic4_pldo, "vdd-l10-l23-l25"),
RPMH_VREG("ldo26", "ldo%s26", &pmic4_nldo, "vdd-l26"),
RPMH_VREG("ldo27", "ldo%s27", &pmic4_nldo, "vdd-l1-l27"),
RPMH_VREG("ldo28", "ldo%s28", &pmic4_pldo, "vdd-l16-l28"),
RPMH_VREG("lvs1", "vs%s1", &pmic4_lvs, "vin-lvs-1-2"),
RPMH_VREG("lvs2", "vs%s2", &pmic4_lvs, "vin-lvs-1-2"),
{}
};
static const struct rpmh_vreg_init_data pmg1110_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
{}
};
static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = {
RPMH_VREG("bob", "bob%s1", &pmic4_bob, "vdd-bob"),
{}
};
static const struct rpmh_vreg_init_data pm8005_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic4_ftsmps426, "vdd-s4"),
{}
};
static const struct rpmh_vreg_init_data pm8150_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l10"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l2-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
{}
};
static const struct rpmh_vreg_init_data pm8150l_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_pldo_lv, "vdd-l1-l8"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l11"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l1-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l9-l10"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l9-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l7-l11"),
RPMH_VREG("bob", "bob%s1", &pmic5_bob, "vdd-bob"),
{}
};
static const struct rpmh_vreg_init_data pmm8155au_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l10"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l2-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo, "vdd-l1-l8-l11"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l7-l12-l14-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l13-l16-l17"),
RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, "vdd-l3-l4-l5-l18"),
{}
};
static const struct rpmh_vreg_init_data pmm8654au_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps527, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps527, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps527, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps527, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps527, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps527, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps527, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps527, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps527, "vdd-s9"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo515, "vdd-s9"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo515, "vdd-l2-l3"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo515, "vdd-l2-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo515, "vdd-s9"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo515, "vdd-s9"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo515, "vdd-l6-l7"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_nldo515, "vdd-l6-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo515_mv, "vdd-l8-l9"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l8-l9"),
{}
};
static const struct rpmh_vreg_init_data pm8350_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic5_hfsmps510, "vdd-s10"),
RPMH_VREG("smps11", "smp%s11", &pmic5_hfsmps510, "vdd-s11"),
RPMH_VREG("smps12", "smp%s12", &pmic5_hfsmps510, "vdd-s12"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l4"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l7"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l5"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l1-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l3-l5"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9-l10"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l2-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9-l10"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_nldo, "vdd-l6-l9-l10"),
{}
};
static const struct rpmh_vreg_init_data pm8350c_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps515, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps510, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps510, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps510, "vdd-s10"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_pldo_lv, "vdd-l1-l12"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo_lv, "vdd-l2-l8"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_pldo, "vdd-l3-l4-l5-l7-l13"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo, "vdd-l3-l4-l5-l7-l13"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l3-l4-l5-l7-l13"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l6-l9-l11"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l3-l4-l5-l7-l13"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo_lv, "vdd-l2-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l6-l9-l11"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_nldo, "vdd-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l6-l9-l11"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l1-l12"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l3-l4-l5-l7-l13"),
RPMH_VREG("bob", "bob%s1", &pmic5_bob, "vdd-bob"),
{}
};
static const struct rpmh_vreg_init_data pm8450_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps520, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps520, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps520, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps520, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps520, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps520, "vdd-s6"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo_lv, "vdd-l4"),
{}
};
static const struct rpmh_vreg_init_data pm8550_vreg_data[] = {
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo515, "vdd-l1-l4-l10"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l13-l14"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo515, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo515, "vdd-l1-l4-l10"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l16"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l6-l7"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l6-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo, "vdd-l8-l9"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l8-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_nldo515, "vdd-l1-l4-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_nldo515, "vdd-l11"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_nldo515, "vdd-l12"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l2-l13-l14"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo, "vdd-l2-l13-l14"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo515, "vdd-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l5-l16"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l17"),
RPMH_VREG("bob1", "bob%s1", &pmic5_bob, "vdd-bob1"),
RPMH_VREG("bob2", "bob%s2", &pmic5_bob, "vdd-bob2"),
{}
};
static const struct rpmh_vreg_init_data pm8550vs_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps525_lv, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps525_lv, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps525_lv, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps525_lv, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps525_lv, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps525_mv, "vdd-s6"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo515, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo515, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo515, "vdd-l3"),
{}
};
static const struct rpmh_vreg_init_data pm8550ve_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps525_lv, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps525_lv, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps525_lv, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps525_lv, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps525_lv, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps525_lv, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps525_lv, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps525_lv, "vdd-s8"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo515, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo515, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo515, "vdd-l3"),
{}
};
static const struct rpmh_vreg_init_data pm8009_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps515, "vdd-s2"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo_lv, "vdd-l7"),
{}
};
static const struct rpmh_vreg_init_data pm8009_1_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps515_1, "vdd-s2"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo_lv, "vdd-l7"),
{}
};
static const struct rpmh_vreg_init_data pm6150_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4-l7-l8"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l16-l17-l18-l19"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_nldo, "vdd-l4-l7-l8"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l4-l7-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo_lv, "vdd-l10-l14-l15"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo_lv, "vdd-l11-l12-l13"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo_lv, "vdd-l11-l12-l13"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo_lv, "vdd-l11-l12-l13"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo_lv, "vdd-l10-l14-l15"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_pldo_lv, "vdd-l10-l14-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l5-l16-l17-l18-l19"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo, "vdd-l5-l16-l17-l18-l19"),
RPMH_VREG("ldo18", "ldo%s18", &pmic5_pldo, "vdd-l5-l16-l17-l18-l19"),
RPMH_VREG("ldo19", "ldo%s19", &pmic5_pldo, "vdd-l5-l16-l17-l18-l19"),
{}
};
static const struct rpmh_vreg_init_data pm6150l_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_pldo_lv, "vdd-l1-l8"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l4-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-l11"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo, "vdd-l1-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, "vdd-l9-l10"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l9-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l7-l11"),
RPMH_VREG("bob", "bob%s1", &pmic5_bob, "vdd-bob"),
{}
};
static const struct rpmh_vreg_init_data pm6350_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, NULL),
RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps510, NULL),
/* smps3 - smps5 not configured */
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, NULL),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, NULL),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_pldo, NULL),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, NULL),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, NULL),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, NULL),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, NULL),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_pldo, NULL),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_pldo, NULL),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, NULL),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, NULL),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_pldo, NULL),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_nldo, NULL),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_pldo, NULL),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo, NULL),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_nldo, NULL),
/* ldo17 not configured */
RPMH_VREG("ldo18", "ldo%s18", &pmic5_nldo, NULL),
RPMH_VREG("ldo19", "ldo%s19", &pmic5_nldo, NULL),
RPMH_VREG("ldo20", "ldo%s20", &pmic5_nldo, NULL),
RPMH_VREG("ldo21", "ldo%s21", &pmic5_nldo, NULL),
RPMH_VREG("ldo22", "ldo%s22", &pmic5_nldo, NULL),
};
static const struct rpmh_vreg_init_data pmx55_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_hfsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_hfsmps510, "vdd-s7"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l2"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l1-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3-l9"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4-l12"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_nldo, "vdd-l7-l8"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l7-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l3-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l10-l11-l13"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l10-l11-l13"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_nldo, "vdd-l4-l12"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l10-l11-l13"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_nldo, "vdd-l14"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo, "vdd-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l16"),
{}
};
static const struct rpmh_vreg_init_data pmx65_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_hfsmps510, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_hfsmps510, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_hfsmps510, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_hfsmps510, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps510, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_hfsmps510, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l2-l18"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo, "vdd-l5-l6-l16"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo, "vdd-l5-l6-l16"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_nldo, "vdd-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l8-l9"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l8-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l11-l13"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_nldo, "vdd-l12"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l11-l13"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_nldo, "vdd-l14"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo, "vdd-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_pldo, "vdd-l5-l6-l16"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_nldo, "vdd-l17"),
/* ldo18 not configured */
RPMH_VREG("ldo19", "ldo%s19", &pmic5_nldo, "vdd-l19"),
RPMH_VREG("ldo20", "ldo%s20", &pmic5_nldo, "vdd-l20"),
RPMH_VREG("ldo21", "ldo%s21", &pmic5_nldo, "vdd-l21"),
{}
};
static const struct rpmh_vreg_init_data pmx75_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps525_lv, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps525_lv, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps525_lv, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps525_mv, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps525_lv, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps525_lv, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps525_lv, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_ftsmps525_lv, "vdd-s8"),
RPMH_VREG("smps9", "smp%s9", &pmic5_ftsmps525_lv, "vdd-s9"),
RPMH_VREG("smps10", "smp%s10", &pmic5_ftsmps525_lv, "vdd-s10"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo515, "vdd-l1"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo515, "vdd-l2-18"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo515, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo515, "vdd-l4-l16"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_pldo_lv, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_pldo_lv, "vdd-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_nldo515, "vdd-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo515, "vdd-l8-l9"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo515, "vdd-l8-l9"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_pldo, "vdd-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo, "vdd-l11-l13"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_nldo515, "vdd-l12"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_pldo, "vdd-l11-l13"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_nldo515, "vdd-l14"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo515, "vdd-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_nldo515, "vdd-l4-l16"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_nldo515, "vdd-l17"),
/* ldo18 not configured */
RPMH_VREG("ldo19", "ldo%s19", &pmic5_nldo515, "vdd-l19"),
RPMH_VREG("ldo20", "ldo%s20", &pmic5_nldo515, "vdd-l20-l21"),
RPMH_VREG("ldo21", "ldo%s21", &pmic5_nldo515, "vdd-l20-l21"),
};
static const struct rpmh_vreg_init_data pm7325_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_hfsmps510, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps520, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_ftsmps520, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic5_ftsmps520, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic5_ftsmps520, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic5_ftsmps520, "vdd-s6"),
RPMH_VREG("smps7", "smp%s7", &pmic5_ftsmps520, "vdd-s7"),
RPMH_VREG("smps8", "smp%s8", &pmic5_hfsmps510, "vdd-s8"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l4-l12-l15"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_pldo, "vdd-l2-l7"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_nldo, "vdd-l1-l4-l12-l15"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l5"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l6-l9-l10"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l2-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic5_nldo, "vdd-l8"),
RPMH_VREG("ldo9", "ldo%s9", &pmic5_nldo, "vdd-l6-l9-l10"),
RPMH_VREG("ldo10", "ldo%s10", &pmic5_nldo, "vdd-l6-l9-l10"),
RPMH_VREG("ldo11", "ldo%s11", &pmic5_pldo_lv, "vdd-l11-l17-l18-l19"),
RPMH_VREG("ldo12", "ldo%s12", &pmic5_nldo, "vdd-l1-l4-l12-l15"),
RPMH_VREG("ldo13", "ldo%s13", &pmic5_nldo, "vdd-l13"),
RPMH_VREG("ldo14", "ldo%s14", &pmic5_nldo, "vdd-l14-l16"),
RPMH_VREG("ldo15", "ldo%s15", &pmic5_nldo, "vdd-l1-l4-l12-l15"),
RPMH_VREG("ldo16", "ldo%s16", &pmic5_nldo, "vdd-l14-l16"),
RPMH_VREG("ldo17", "ldo%s17", &pmic5_pldo_lv, "vdd-l11-l17-l18-l19"),
RPMH_VREG("ldo18", "ldo%s18", &pmic5_pldo_lv, "vdd-l11-l17-l18-l19"),
RPMH_VREG("ldo19", "ldo%s19", &pmic5_pldo_lv, "vdd-l11-l17-l18-l19"),
{}
};
static const struct rpmh_vreg_init_data pmr735a_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic5_ftsmps520, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic5_ftsmps520, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic5_hfsmps515, "vdd-s3"),
RPMH_VREG("ldo1", "ldo%s1", &pmic5_nldo, "vdd-l1-l2"),
RPMH_VREG("ldo2", "ldo%s2", &pmic5_nldo, "vdd-l1-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic5_nldo, "vdd-l3"),
RPMH_VREG("ldo4", "ldo%s4", &pmic5_pldo_lv, "vdd-l4"),
RPMH_VREG("ldo5", "ldo%s5", &pmic5_nldo, "vdd-l5-l6"),
RPMH_VREG("ldo6", "ldo%s6", &pmic5_nldo, "vdd-l5-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic5_pldo, "vdd-l7-bob"),
{}
};
static const struct rpmh_vreg_init_data pm660_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3"),
RPMH_VREG("smps4", "smp%s4", &pmic4_hfsmps3, "vdd-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic4_hfsmps3, "vdd-s5"),
RPMH_VREG("smps6", "smp%s6", &pmic4_hfsmps3, "vdd-s6"),
RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l6-l7"),
RPMH_VREG("ldo2", "ldo%s2", &pmic4_nldo, "vdd-l2-l3"),
RPMH_VREG("ldo3", "ldo%s3", &pmic4_nldo, "vdd-l2-l3"),
/* ldo4 is inaccessible on PM660 */
RPMH_VREG("ldo5", "ldo%s5", &pmic4_nldo, "vdd-l5"),
RPMH_VREG("ldo6", "ldo%s6", &pmic4_nldo, "vdd-l1-l6-l7"),
RPMH_VREG("ldo7", "ldo%s7", &pmic4_nldo, "vdd-l1-l6-l7"),
RPMH_VREG("ldo8", "ldo%s8", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo9", "ldo%s9", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo10", "ldo%s10", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo11", "ldo%s11", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo12", "ldo%s12", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo13", "ldo%s13", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo14", "ldo%s14", &pmic4_pldo_lv, "vdd-l8-l9-l10-l11-l12-l13-l14"),
RPMH_VREG("ldo15", "ldo%s15", &pmic4_pldo, "vdd-l15-l16-l17-l18-l19"),
RPMH_VREG("ldo16", "ldo%s16", &pmic4_pldo, "vdd-l15-l16-l17-l18-l19"),
RPMH_VREG("ldo17", "ldo%s17", &pmic4_pldo, "vdd-l15-l16-l17-l18-l19"),
RPMH_VREG("ldo18", "ldo%s18", &pmic4_pldo, "vdd-l15-l16-l17-l18-l19"),
RPMH_VREG("ldo19", "ldo%s19", &pmic4_pldo, "vdd-l15-l16-l17-l18-l19"),
{}
};
static const struct rpmh_vreg_init_data pm660l_vreg_data[] = {
RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"),
RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"),
RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3-s4"),
RPMH_VREG("smps5", "smp%s5", &pmic4_ftsmps426, "vdd-s5"),
RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l9-l10"),
RPMH_VREG("ldo2", "ldo%s2", &pmic4_pldo, "vdd-l2"),
RPMH_VREG("ldo3", "ldo%s3", &pmic4_pldo, "vdd-l3-l5-l7-l8"),
RPMH_VREG("ldo4", "ldo%s4", &pmic4_pldo, "vdd-l4-l6"),
RPMH_VREG("ldo5", "ldo%s5", &pmic4_pldo, "vdd-l3-l5-l7-l8"),
RPMH_VREG("ldo6", "ldo%s6", &pmic4_pldo, "vdd-l4-l6"),
RPMH_VREG("ldo7", "ldo%s7", &pmic4_pldo, "vdd-l3-l5-l7-l8"),
RPMH_VREG("ldo8", "ldo%s8", &pmic4_pldo, "vdd-l3-l5-l7-l8"),
RPMH_VREG("bob", "bob%s1", &pmic4_bob, "vdd-bob"),
{}
};
static int rpmh_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct rpmh_vreg_init_data *vreg_data;
struct device_node *node;
struct rpmh_vreg *vreg;
const char *pmic_id;
int ret;
vreg_data = of_device_get_match_data(dev);
if (!vreg_data)
return -ENODEV;
ret = of_property_read_string(dev->of_node, "qcom,pmic-id", &pmic_id);
if (ret < 0) {
dev_err(dev, "qcom,pmic-id missing in DT node\n");
return ret;
}
for_each_available_child_of_node(dev->of_node, node) {
vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL);
if (!vreg) {
of_node_put(node);
return -ENOMEM;
}
ret = rpmh_regulator_init_vreg(vreg, dev, node, pmic_id,
vreg_data);
if (ret < 0) {
of_node_put(node);
return ret;
}
}
return 0;
}
static const struct of_device_id __maybe_unused rpmh_regulator_match_table[] = {
{
.compatible = "qcom,pm8005-rpmh-regulators",
.data = pm8005_vreg_data,
},
{
.compatible = "qcom,pm8009-rpmh-regulators",
.data = pm8009_vreg_data,
},
{
.compatible = "qcom,pm8009-1-rpmh-regulators",
.data = pm8009_1_vreg_data,
},
{
.compatible = "qcom,pm8150-rpmh-regulators",
.data = pm8150_vreg_data,
},
{
.compatible = "qcom,pm8150l-rpmh-regulators",
.data = pm8150l_vreg_data,
},
{
.compatible = "qcom,pm8350-rpmh-regulators",
.data = pm8350_vreg_data,
},
{
.compatible = "qcom,pm8350c-rpmh-regulators",
.data = pm8350c_vreg_data,
},
{
.compatible = "qcom,pm8450-rpmh-regulators",
.data = pm8450_vreg_data,
},
{
.compatible = "qcom,pm8550-rpmh-regulators",
.data = pm8550_vreg_data,
},
{
.compatible = "qcom,pm8550ve-rpmh-regulators",
.data = pm8550ve_vreg_data,
},
{
.compatible = "qcom,pm8550vs-rpmh-regulators",
.data = pm8550vs_vreg_data,
},
{
.compatible = "qcom,pm8998-rpmh-regulators",
.data = pm8998_vreg_data,
},
{
.compatible = "qcom,pmg1110-rpmh-regulators",
.data = pmg1110_vreg_data,
},
{
.compatible = "qcom,pmi8998-rpmh-regulators",
.data = pmi8998_vreg_data,
},
{
.compatible = "qcom,pm6150-rpmh-regulators",
.data = pm6150_vreg_data,
},
{
.compatible = "qcom,pm6150l-rpmh-regulators",
.data = pm6150l_vreg_data,
},
{
.compatible = "qcom,pm6350-rpmh-regulators",
.data = pm6350_vreg_data,
},
{
.compatible = "qcom,pmc8180-rpmh-regulators",
.data = pm8150_vreg_data,
},
{
.compatible = "qcom,pmc8180c-rpmh-regulators",
.data = pm8150l_vreg_data,
},
{
.compatible = "qcom,pmm8155au-rpmh-regulators",
.data = pmm8155au_vreg_data,
},
{
.compatible = "qcom,pmm8654au-rpmh-regulators",
.data = pmm8654au_vreg_data,
},
{
.compatible = "qcom,pmx55-rpmh-regulators",
.data = pmx55_vreg_data,
},
{
.compatible = "qcom,pmx65-rpmh-regulators",
.data = pmx65_vreg_data,
},
{
.compatible = "qcom,pmx75-rpmh-regulators",
.data = pmx75_vreg_data,
},
{
.compatible = "qcom,pm7325-rpmh-regulators",
.data = pm7325_vreg_data,
},
{
.compatible = "qcom,pmr735a-rpmh-regulators",
.data = pmr735a_vreg_data,
},
{
.compatible = "qcom,pm660-rpmh-regulators",
.data = pm660_vreg_data,
},
{
.compatible = "qcom,pm660l-rpmh-regulators",
.data = pm660l_vreg_data,
},
{}
};
MODULE_DEVICE_TABLE(of, rpmh_regulator_match_table);
static struct platform_driver rpmh_regulator_driver = {
.driver = {
.name = "qcom-rpmh-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(rpmh_regulator_match_table),
},
.probe = rpmh_regulator_probe,
};
module_platform_driver(rpmh_regulator_driver);
MODULE_DESCRIPTION("Qualcomm RPMh regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/qcom-rpmh-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/bits.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define RT5759_REG_VENDORINFO 0x00
#define RT5759_REG_FREQ 0x01
#define RT5759_REG_VSEL 0x02
#define RT5759_REG_DCDCCTRL 0x03
#define RT5759_REG_STATUS 0x04
#define RT5759_REG_DCDCSET 0x05
#define RT5759A_REG_WDTEN 0x42
#define RT5759_TSTEP_MASK GENMASK(3, 2)
#define RT5759_VSEL_MASK GENMASK(6, 0)
#define RT5759_DISCHARGE_MASK BIT(3)
#define RT5759_FPWM_MASK BIT(2)
#define RT5759_ENABLE_MASK BIT(1)
#define RT5759_OT_MASK BIT(1)
#define RT5759_UV_MASK BIT(0)
#define RT5957_OCLVL_MASK GENMASK(7, 6)
#define RT5759_OCLVL_SHIFT 6
#define RT5957_OTLVL_MASK GENMASK(5, 4)
#define RT5759_OTLVL_SHIFT 4
#define RT5759A_WDTEN_MASK BIT(1)
#define RT5759_MANUFACTURER_ID 0x82
/* vsel range 0x00 ~ 0x5A */
#define RT5759_NUM_VOLTS 91
#define RT5759_MIN_UV 600000
#define RT5759_STEP_UV 10000
#define RT5759A_STEP_UV 12500
#define RT5759_MINSS_TIMEUS 1500
#define RT5759_PSKIP_MODE 0
#define RT5759_FPWM_MODE 1
enum {
CHIP_TYPE_RT5759 = 0,
CHIP_TYPE_RT5759A,
CHIP_TYPE_MAX
};
struct rt5759_priv {
struct device *dev;
struct regmap *regmap;
struct regulator_desc desc;
unsigned long chip_type;
};
static int rt5759_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int mode_val;
switch (mode) {
case REGULATOR_MODE_NORMAL:
mode_val = 0;
break;
case REGULATOR_MODE_FAST:
mode_val = RT5759_FPWM_MASK;
break;
default:
return -EINVAL;
}
return regmap_update_bits(regmap, RT5759_REG_STATUS, RT5759_FPWM_MASK,
mode_val);
}
static unsigned int rt5759_get_mode(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int regval;
int ret;
ret = regmap_read(regmap, RT5759_REG_DCDCCTRL, ®val);
if (ret)
return REGULATOR_MODE_INVALID;
if (regval & RT5759_FPWM_MASK)
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static int rt5759_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int status, events = 0;
int ret;
ret = regmap_read(regmap, RT5759_REG_STATUS, &status);
if (ret)
return ret;
if (status & RT5759_OT_MASK)
events |= REGULATOR_ERROR_OVER_TEMP;
if (status & RT5759_UV_MASK)
events |= REGULATOR_ERROR_UNDER_VOLTAGE;
*flags = events;
return 0;
}
static int rt5759_set_ocp(struct regulator_dev *rdev, int lim_uA, int severity,
bool enable)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int ocp_lvl[] = { 9800000, 10800000, 11800000 };
unsigned int ocp_regval;
int i;
/* Only support over current protection parameter */
if (severity != REGULATOR_SEVERITY_PROT)
return 0;
if (enable) {
/* Default ocp level is 10.8A */
if (lim_uA == 0)
lim_uA = 10800000;
for (i = 0; i < ARRAY_SIZE(ocp_lvl); i++) {
if (lim_uA <= ocp_lvl[i])
break;
}
if (i == ARRAY_SIZE(ocp_lvl))
i = ARRAY_SIZE(ocp_lvl) - 1;
ocp_regval = i + 1;
} else
ocp_regval = 0;
return regmap_update_bits(regmap, RT5759_REG_DCDCSET, RT5957_OCLVL_MASK,
ocp_regval << RT5759_OCLVL_SHIFT);
}
static int rt5759_set_otp(struct regulator_dev *rdev, int lim, int severity,
bool enable)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int otp_lvl[] = { 140, 150, 170 };
unsigned int otp_regval;
int i;
/* Only support over temperature protection parameter */
if (severity != REGULATOR_SEVERITY_PROT)
return 0;
if (enable) {
/* Default otp level is 150'c */
if (lim == 0)
lim = 150;
for (i = 0; i < ARRAY_SIZE(otp_lvl); i++) {
if (lim <= otp_lvl[i])
break;
}
if (i == ARRAY_SIZE(otp_lvl))
i = ARRAY_SIZE(otp_lvl) - 1;
otp_regval = i + 1;
} else
otp_regval = 0;
return regmap_update_bits(regmap, RT5759_REG_DCDCSET, RT5957_OTLVL_MASK,
otp_regval << RT5759_OTLVL_SHIFT);
}
static const struct regulator_ops rt5759_regulator_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_mode = rt5759_set_mode,
.get_mode = rt5759_get_mode,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
.get_error_flags = rt5759_get_error_flags,
.set_over_current_protection = rt5759_set_ocp,
.set_thermal_protection = rt5759_set_otp,
};
static unsigned int rt5759_of_map_mode(unsigned int mode)
{
switch (mode) {
case RT5759_FPWM_MODE:
return REGULATOR_MODE_FAST;
case RT5759_PSKIP_MODE:
return REGULATOR_MODE_NORMAL;
default:
return REGULATOR_MODE_INVALID;
}
}
static const unsigned int rt5759_ramp_table[] = { 20000, 15000, 10000, 5000 };
static int rt5759_regulator_register(struct rt5759_priv *priv)
{
struct device_node *np = priv->dev->of_node;
struct regulator_desc *reg_desc = &priv->desc;
struct regulator_config reg_cfg;
struct regulator_dev *rdev;
int ret;
reg_desc->name = "rt5759-buck";
reg_desc->type = REGULATOR_VOLTAGE;
reg_desc->owner = THIS_MODULE;
reg_desc->ops = &rt5759_regulator_ops;
reg_desc->n_voltages = RT5759_NUM_VOLTS;
reg_desc->min_uV = RT5759_MIN_UV;
reg_desc->uV_step = RT5759_STEP_UV;
reg_desc->vsel_reg = RT5759_REG_VSEL;
reg_desc->vsel_mask = RT5759_VSEL_MASK;
reg_desc->enable_reg = RT5759_REG_DCDCCTRL;
reg_desc->enable_mask = RT5759_ENABLE_MASK;
reg_desc->active_discharge_reg = RT5759_REG_DCDCCTRL;
reg_desc->active_discharge_mask = RT5759_DISCHARGE_MASK;
reg_desc->active_discharge_on = RT5759_DISCHARGE_MASK;
reg_desc->ramp_reg = RT5759_REG_FREQ;
reg_desc->ramp_mask = RT5759_TSTEP_MASK;
reg_desc->ramp_delay_table = rt5759_ramp_table;
reg_desc->n_ramp_values = ARRAY_SIZE(rt5759_ramp_table);
reg_desc->enable_time = RT5759_MINSS_TIMEUS;
reg_desc->of_map_mode = rt5759_of_map_mode;
/*
* RT5759 step uV = 10000
* RT5759A step uV = 12500
*/
if (priv->chip_type == CHIP_TYPE_RT5759A)
reg_desc->uV_step = RT5759A_STEP_UV;
memset(®_cfg, 0, sizeof(reg_cfg));
reg_cfg.dev = priv->dev;
reg_cfg.of_node = np;
reg_cfg.init_data = of_get_regulator_init_data(priv->dev, np, reg_desc);
reg_cfg.regmap = priv->regmap;
rdev = devm_regulator_register(priv->dev, reg_desc, ®_cfg);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(priv->dev, "Failed to register regulator (%d)\n", ret);
return ret;
}
return 0;
}
static int rt5759_init_device_property(struct rt5759_priv *priv)
{
unsigned int val = 0;
/*
* Only RT5759A support external watchdog input
*/
if (priv->chip_type != CHIP_TYPE_RT5759A)
return 0;
if (device_property_read_bool(priv->dev, "richtek,watchdog-enable"))
val = RT5759A_WDTEN_MASK;
return regmap_update_bits(priv->regmap, RT5759A_REG_WDTEN,
RT5759A_WDTEN_MASK, val);
}
static int rt5759_manufacturer_check(struct rt5759_priv *priv)
{
unsigned int vendor;
int ret;
ret = regmap_read(priv->regmap, RT5759_REG_VENDORINFO, &vendor);
if (ret)
return ret;
if (vendor != RT5759_MANUFACTURER_ID) {
dev_err(priv->dev, "vendor info not correct (%d)\n", vendor);
return -EINVAL;
}
return 0;
}
static bool rt5759_is_accessible_reg(struct device *dev, unsigned int reg)
{
struct rt5759_priv *priv = dev_get_drvdata(dev);
if (reg <= RT5759_REG_DCDCSET)
return true;
if (priv->chip_type == CHIP_TYPE_RT5759A && reg == RT5759A_REG_WDTEN)
return true;
return false;
}
static const struct regmap_config rt5759_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RT5759A_REG_WDTEN,
.readable_reg = rt5759_is_accessible_reg,
.writeable_reg = rt5759_is_accessible_reg,
};
static int rt5759_probe(struct i2c_client *i2c)
{
struct rt5759_priv *priv;
int ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = &i2c->dev;
priv->chip_type = (unsigned long)of_device_get_match_data(&i2c->dev);
i2c_set_clientdata(i2c, priv);
priv->regmap = devm_regmap_init_i2c(i2c, &rt5759_regmap_config);
if (IS_ERR(priv->regmap)) {
ret = PTR_ERR(priv->regmap);
dev_err(&i2c->dev, "Failed to allocate regmap (%d)\n", ret);
return ret;
}
ret = rt5759_manufacturer_check(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to check device (%d)\n", ret);
return ret;
}
ret = rt5759_init_device_property(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to init device (%d)\n", ret);
return ret;
}
return rt5759_regulator_register(priv);
}
static const struct of_device_id __maybe_unused rt5759_device_table[] = {
{ .compatible = "richtek,rt5759", .data = (void *)CHIP_TYPE_RT5759 },
{ .compatible = "richtek,rt5759a", .data = (void *)CHIP_TYPE_RT5759A },
{}
};
MODULE_DEVICE_TABLE(of, rt5759_device_table);
static struct i2c_driver rt5759_driver = {
.driver = {
.name = "rt5759",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(rt5759_device_table),
},
.probe = rt5759_probe,
};
module_i2c_driver(rt5759_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_DESCRIPTION("Richtek RT5759 Regulator Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rt5759-regulator.c |
// SPDX-License-Identifier: GPL-2.0
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
struct fixed_regulator_data {
struct fixed_voltage_config cfg;
struct regulator_init_data init_data;
struct platform_device pdev;
};
static void regulator_fixed_release(struct device *dev)
{
struct fixed_regulator_data *data = container_of(dev,
struct fixed_regulator_data, pdev.dev);
kfree(data->cfg.supply_name);
kfree(data);
}
/**
* regulator_register_always_on - register an always-on regulator with a fixed name
* @id: platform device id
* @name: name to be used for the regulator
* @supplies: consumers for this regulator
* @num_supplies: number of consumers
* @uv: voltage in microvolts
*/
struct platform_device *regulator_register_always_on(int id, const char *name,
struct regulator_consumer_supply *supplies, int num_supplies, int uv)
{
struct fixed_regulator_data *data;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return NULL;
data->cfg.supply_name = kstrdup(name, GFP_KERNEL);
if (!data->cfg.supply_name) {
kfree(data);
return NULL;
}
data->cfg.microvolts = uv;
data->cfg.enabled_at_boot = 1;
data->cfg.init_data = &data->init_data;
data->init_data.constraints.always_on = 1;
data->init_data.consumer_supplies = supplies;
data->init_data.num_consumer_supplies = num_supplies;
data->pdev.name = "reg-fixed-voltage";
data->pdev.id = id;
data->pdev.dev.platform_data = &data->cfg;
data->pdev.dev.release = regulator_fixed_release;
platform_device_register(&data->pdev);
return &data->pdev;
}
| linux-master | drivers/regulator/fixed-helper.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for TI TPS65912x PMICs
*
* Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
* Andrew F. Davis <[email protected]>
*
* Based on the TPS65218 driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <[email protected]>
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/tps65912.h>
enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \
[_id] = { \
.name = _name, \
.of_match = _of_match, \
.regulators_node = "regulators", \
.id = _id, \
.ops = &_ops, \
.n_voltages = 64, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = 0x3f, \
.enable_reg = _er, \
.enable_mask = BIT(7), \
.volt_table = NULL, \
.linear_ranges = _lr, \
.n_linear_ranges = ARRAY_SIZE(_lr), \
}
static const struct linear_range tps65912_dcdc_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
};
static const struct linear_range tps65912_ldo_ranges[] = {
REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
};
/* Operations permitted on DCDCx */
static const struct regulator_ops tps65912_ops_dcdc = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
};
/* Operations permitted on LDOx */
static const struct regulator_ops tps65912_ops_ldo = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static const struct regulator_desc regulators[] = {
TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
tps65912_dcdc_ranges),
TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
TPS65912_LDO5, TPS65912_LDO5,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
TPS65912_LDO6, TPS65912_LDO6,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
TPS65912_LDO7, TPS65912_LDO7,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
TPS65912_LDO8, TPS65912_LDO8,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
TPS65912_LDO9, TPS65912_LDO9,
tps65912_ldo_ranges),
TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
TPS65912_LDO10, TPS65912_LDO10,
tps65912_ldo_ranges),
};
static int tps65912_regulator_probe(struct platform_device *pdev)
{
struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
struct regulator_dev *rdev;
int i;
platform_set_drvdata(pdev, tps);
config.dev = &pdev->dev;
config.driver_data = tps;
config.dev->of_node = tps->dev->of_node;
config.regmap = tps->regmap;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id tps65912_regulator_id_table[] = {
{ "tps65912-regulator", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
static struct platform_driver tps65912_regulator_driver = {
.driver = {
.name = "tps65912-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65912_regulator_probe,
.id_table = tps65912_regulator_id_table,
};
module_platform_driver(tps65912_regulator_driver);
MODULE_AUTHOR("Andrew F. Davis <[email protected]>");
MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/tps65912-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* tps6507x-regulator.c
*
* Regulator driver for TPS65073 PMIC
*
* Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/mfd/tps6507x.h>
#include <linux/regulator/of_regulator.h>
/* DCDC's */
#define TPS6507X_DCDC_1 0
#define TPS6507X_DCDC_2 1
#define TPS6507X_DCDC_3 2
/* LDOs */
#define TPS6507X_LDO_1 3
#define TPS6507X_LDO_2 4
#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
/* Number of step-down converters available */
#define TPS6507X_NUM_DCDC 3
/* Number of LDO voltage regulators available */
#define TPS6507X_NUM_LDO 2
/* Number of total regulators available */
#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
/* Supported voltage values for regulators (in microVolts) */
static const unsigned int VDCDCx_VSEL_table[] = {
725000, 750000, 775000, 800000,
825000, 850000, 875000, 900000,
925000, 950000, 975000, 1000000,
1025000, 1050000, 1075000, 1100000,
1125000, 1150000, 1175000, 1200000,
1225000, 1250000, 1275000, 1300000,
1325000, 1350000, 1375000, 1400000,
1425000, 1450000, 1475000, 1500000,
1550000, 1600000, 1650000, 1700000,
1750000, 1800000, 1850000, 1900000,
1950000, 2000000, 2050000, 2100000,
2150000, 2200000, 2250000, 2300000,
2350000, 2400000, 2450000, 2500000,
2550000, 2600000, 2650000, 2700000,
2750000, 2800000, 2850000, 2900000,
3000000, 3100000, 3200000, 3300000,
};
static const unsigned int LDO1_VSEL_table[] = {
1000000, 1100000, 1200000, 1250000,
1300000, 1350000, 1400000, 1500000,
1600000, 1800000, 2500000, 2750000,
2800000, 3000000, 3100000, 3300000,
};
/* The voltage mapping table for LDO2 is the same as VDCDCx */
#define LDO2_VSEL_table VDCDCx_VSEL_table
struct tps_info {
const char *name;
u8 table_len;
const unsigned int *table;
/* Does DCDC high or the low register defines output voltage? */
bool defdcdc_default;
};
static struct tps_info tps6507x_pmic_regs[] = {
{
.name = "VDCDC1",
.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
.table = VDCDCx_VSEL_table,
},
{
.name = "VDCDC2",
.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
.table = VDCDCx_VSEL_table,
},
{
.name = "VDCDC3",
.table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
.table = VDCDCx_VSEL_table,
},
{
.name = "LDO1",
.table_len = ARRAY_SIZE(LDO1_VSEL_table),
.table = LDO1_VSEL_table,
},
{
.name = "LDO2",
.table_len = ARRAY_SIZE(LDO2_VSEL_table),
.table = LDO2_VSEL_table,
},
};
struct tps6507x_pmic {
struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
struct tps6507x_dev *mfd;
struct tps_info *info[TPS6507X_NUM_REGULATOR];
struct mutex io_lock;
};
static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
{
u8 val;
int err;
err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
if (err)
return err;
return val;
}
static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
{
return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
}
static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
{
int err, data;
mutex_lock(&tps->io_lock);
data = tps6507x_pmic_read(tps, reg);
if (data < 0) {
dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
err = data;
goto out;
}
data |= mask;
err = tps6507x_pmic_write(tps, reg, data);
if (err)
dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps->io_lock);
return err;
}
static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
{
int err, data;
mutex_lock(&tps->io_lock);
data = tps6507x_pmic_read(tps, reg);
if (data < 0) {
dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
err = data;
goto out;
}
data &= ~mask;
err = tps6507x_pmic_write(tps, reg, data);
if (err)
dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps->io_lock);
return err;
}
static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
{
int data;
mutex_lock(&tps->io_lock);
data = tps6507x_pmic_read(tps, reg);
if (data < 0)
dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
mutex_unlock(&tps->io_lock);
return data;
}
static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
{
int err;
mutex_lock(&tps->io_lock);
err = tps6507x_pmic_write(tps, reg, val);
if (err < 0)
dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
mutex_unlock(&tps->io_lock);
return err;
}
static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
{
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
int data, rid = rdev_get_id(dev);
u8 shift;
if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
shift = TPS6507X_MAX_REG_ID - rid;
data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
if (data < 0)
return data;
else
return (data & 1<<shift) ? 1 : 0;
}
static int tps6507x_pmic_enable(struct regulator_dev *dev)
{
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
int rid = rdev_get_id(dev);
u8 shift;
if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
shift = TPS6507X_MAX_REG_ID - rid;
return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
}
static int tps6507x_pmic_disable(struct regulator_dev *dev)
{
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
int rid = rdev_get_id(dev);
u8 shift;
if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
return -EINVAL;
shift = TPS6507X_MAX_REG_ID - rid;
return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
1 << shift);
}
static int tps6507x_pmic_get_voltage_sel(struct regulator_dev *dev)
{
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
int data, rid = rdev_get_id(dev);
u8 reg, mask;
switch (rid) {
case TPS6507X_DCDC_1:
reg = TPS6507X_REG_DEFDCDC1;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_2:
if (tps->info[rid]->defdcdc_default)
reg = TPS6507X_REG_DEFDCDC2_HIGH;
else
reg = TPS6507X_REG_DEFDCDC2_LOW;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_3:
if (tps->info[rid]->defdcdc_default)
reg = TPS6507X_REG_DEFDCDC3_HIGH;
else
reg = TPS6507X_REG_DEFDCDC3_LOW;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_LDO_1:
reg = TPS6507X_REG_LDO_CTRL1;
mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
break;
case TPS6507X_LDO_2:
reg = TPS6507X_REG_DEFLDO2;
mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
break;
default:
return -EINVAL;
}
data = tps6507x_pmic_reg_read(tps, reg);
if (data < 0)
return data;
data &= mask;
return data;
}
static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
int data, rid = rdev_get_id(dev);
u8 reg, mask;
switch (rid) {
case TPS6507X_DCDC_1:
reg = TPS6507X_REG_DEFDCDC1;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_2:
if (tps->info[rid]->defdcdc_default)
reg = TPS6507X_REG_DEFDCDC2_HIGH;
else
reg = TPS6507X_REG_DEFDCDC2_LOW;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_DCDC_3:
if (tps->info[rid]->defdcdc_default)
reg = TPS6507X_REG_DEFDCDC3_HIGH;
else
reg = TPS6507X_REG_DEFDCDC3_LOW;
mask = TPS6507X_DEFDCDCX_DCDC_MASK;
break;
case TPS6507X_LDO_1:
reg = TPS6507X_REG_LDO_CTRL1;
mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
break;
case TPS6507X_LDO_2:
reg = TPS6507X_REG_DEFLDO2;
mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
break;
default:
return -EINVAL;
}
data = tps6507x_pmic_reg_read(tps, reg);
if (data < 0)
return data;
data &= ~mask;
data |= selector;
return tps6507x_pmic_reg_write(tps, reg, data);
}
static const struct regulator_ops tps6507x_pmic_ops = {
.is_enabled = tps6507x_pmic_is_enabled,
.enable = tps6507x_pmic_enable,
.disable = tps6507x_pmic_disable,
.get_voltage_sel = tps6507x_pmic_get_voltage_sel,
.set_voltage_sel = tps6507x_pmic_set_voltage_sel,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
};
static int tps6507x_pmic_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct tps6507x_pmic *tps = config->driver_data;
struct tps_info *info = tps->info[desc->id];
u32 prop;
int ret;
ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
if (!ret)
info->defdcdc_default = prop;
return 0;
}
static int tps6507x_pmic_probe(struct platform_device *pdev)
{
struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
struct tps_info *info = &tps6507x_pmic_regs[0];
struct regulator_config config = { };
struct regulator_init_data *init_data = NULL;
struct regulator_dev *rdev;
struct tps6507x_pmic *tps;
struct tps6507x_board *tps_board;
int i;
/**
* tps_board points to pmic related constants
* coming from the board-evm file.
*/
tps_board = dev_get_platdata(tps6507x_dev->dev);
if (tps_board)
init_data = tps_board->tps6507x_pmic_init_data;
tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
mutex_init(&tps->io_lock);
/* common for all regulators */
tps->mfd = tps6507x_dev;
for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++) {
/* Register the regulators */
tps->info[i] = info;
if (init_data && init_data[i].driver_data) {
struct tps6507x_reg_platform_data *data =
init_data[i].driver_data;
info->defdcdc_default = data->defdcdc_default;
}
tps->desc[i].name = info->name;
tps->desc[i].of_match = of_match_ptr(info->name);
tps->desc[i].regulators_node = of_match_ptr("regulators");
tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
tps->desc[i].id = i;
tps->desc[i].n_voltages = info->table_len;
tps->desc[i].volt_table = info->table;
tps->desc[i].ops = &tps6507x_pmic_ops;
tps->desc[i].type = REGULATOR_VOLTAGE;
tps->desc[i].owner = THIS_MODULE;
config.dev = tps6507x_dev->dev;
config.init_data = init_data;
config.driver_data = tps;
rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
&config);
if (IS_ERR(rdev)) {
dev_err(tps6507x_dev->dev,
"failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
}
tps6507x_dev->pmic = tps;
platform_set_drvdata(pdev, tps6507x_dev);
return 0;
}
static struct platform_driver tps6507x_pmic_driver = {
.driver = {
.name = "tps6507x-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps6507x_pmic_probe,
};
static int __init tps6507x_pmic_init(void)
{
return platform_driver_register(&tps6507x_pmic_driver);
}
subsys_initcall(tps6507x_pmic_init);
static void __exit tps6507x_pmic_cleanup(void)
{
platform_driver_unregister(&tps6507x_pmic_driver);
}
module_exit(tps6507x_pmic_cleanup);
MODULE_AUTHOR("Texas Instruments");
MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:tps6507x-pmic");
| linux-master | drivers/regulator/tps6507x-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// da9210-regulator.c - Regulator device driver for DA9210
// Copyright (C) 2013 Dialog Semiconductor Ltd.
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/of_device.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>
#include "da9210-regulator.h"
struct da9210 {
struct regulator_dev *rdev;
struct regmap *regmap;
};
static const struct regmap_config da9210_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static const struct regulator_ops da9210_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_current_limit = regulator_set_current_limit_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
};
/* Default limits measured in millivolts and milliamps */
#define DA9210_MIN_MV 300
#define DA9210_MAX_MV 1570
#define DA9210_STEP_MV 10
/* Current limits for buck (uA) indices corresponds with register values */
static const unsigned int da9210_buck_limits[] = {
1600000, 1800000, 2000000, 2200000, 2400000, 2600000, 2800000, 3000000,
3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 4600000
};
static const struct regulator_desc da9210_reg = {
.name = "DA9210",
.id = 0,
.ops = &da9210_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = ((DA9210_MAX_MV - DA9210_MIN_MV) / DA9210_STEP_MV) + 1,
.min_uV = (DA9210_MIN_MV * 1000),
.uV_step = (DA9210_STEP_MV * 1000),
.vsel_reg = DA9210_REG_VBUCK_A,
.vsel_mask = DA9210_VBUCK_MASK,
.enable_reg = DA9210_REG_BUCK_CONT,
.enable_mask = DA9210_BUCK_EN,
.owner = THIS_MODULE,
.curr_table = da9210_buck_limits,
.n_current_limits = ARRAY_SIZE(da9210_buck_limits),
.csel_reg = DA9210_REG_BUCK_ILIM,
.csel_mask = DA9210_BUCK_ILIM_MASK,
};
static irqreturn_t da9210_irq_handler(int irq, void *data)
{
struct da9210 *chip = data;
unsigned int val, handled = 0;
int error, ret = IRQ_NONE;
error = regmap_read(chip->regmap, DA9210_REG_EVENT_B, &val);
if (error < 0)
goto error_i2c;
if (val & DA9210_E_OVCURR) {
regulator_notifier_call_chain(chip->rdev,
REGULATOR_EVENT_OVER_CURRENT,
NULL);
handled |= DA9210_E_OVCURR;
}
if (val & DA9210_E_NPWRGOOD) {
regulator_notifier_call_chain(chip->rdev,
REGULATOR_EVENT_UNDER_VOLTAGE,
NULL);
handled |= DA9210_E_NPWRGOOD;
}
if (val & (DA9210_E_TEMP_WARN | DA9210_E_TEMP_CRIT)) {
regulator_notifier_call_chain(chip->rdev,
REGULATOR_EVENT_OVER_TEMP, NULL);
handled |= val & (DA9210_E_TEMP_WARN | DA9210_E_TEMP_CRIT);
}
if (val & DA9210_E_VMAX) {
regulator_notifier_call_chain(chip->rdev,
REGULATOR_EVENT_REGULATION_OUT,
NULL);
handled |= DA9210_E_VMAX;
}
if (handled) {
/* Clear handled events */
error = regmap_write(chip->regmap, DA9210_REG_EVENT_B, handled);
if (error < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
return ret;
error_i2c:
dev_err(regmap_get_device(chip->regmap), "I2C error : %d\n", error);
return ret;
}
/*
* I2C driver interface functions
*/
static const struct of_device_id __maybe_unused da9210_dt_ids[] = {
{ .compatible = "dlg,da9210", },
{ }
};
MODULE_DEVICE_TABLE(of, da9210_dt_ids);
static int da9210_i2c_probe(struct i2c_client *i2c)
{
struct da9210 *chip;
struct device *dev = &i2c->dev;
struct da9210_pdata *pdata = dev_get_platdata(dev);
struct regulator_dev *rdev = NULL;
struct regulator_config config = { };
int error;
const struct of_device_id *match;
if (i2c->dev.of_node && !pdata) {
match = of_match_device(of_match_ptr(da9210_dt_ids),
&i2c->dev);
if (!match) {
dev_err(&i2c->dev, "Error: No device match found\n");
return -ENODEV;
}
}
chip = devm_kzalloc(&i2c->dev, sizeof(struct da9210), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->regmap = devm_regmap_init_i2c(i2c, &da9210_regmap_config);
if (IS_ERR(chip->regmap)) {
error = PTR_ERR(chip->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
config.dev = &i2c->dev;
config.init_data = pdata ? &pdata->da9210_constraints :
of_get_regulator_init_data(dev, dev->of_node, &da9210_reg);
config.driver_data = chip;
config.regmap = chip->regmap;
config.of_node = dev->of_node;
/* Mask all interrupt sources to deassert interrupt line */
error = regmap_write(chip->regmap, DA9210_REG_MASK_A, ~0);
if (!error)
error = regmap_write(chip->regmap, DA9210_REG_MASK_B, ~0);
if (error) {
dev_err(&i2c->dev, "Failed to write to mask reg: %d\n", error);
return error;
}
rdev = devm_regulator_register(&i2c->dev, &da9210_reg, &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to register DA9210 regulator\n");
return PTR_ERR(rdev);
}
chip->rdev = rdev;
if (i2c->irq) {
error = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
da9210_irq_handler,
IRQF_TRIGGER_LOW |
IRQF_ONESHOT | IRQF_SHARED,
"da9210", chip);
if (error) {
dev_err(&i2c->dev, "Failed to request IRQ%u: %d\n",
i2c->irq, error);
return error;
}
error = regmap_update_bits(chip->regmap, DA9210_REG_MASK_B,
DA9210_M_OVCURR | DA9210_M_NPWRGOOD |
DA9210_M_TEMP_WARN |
DA9210_M_TEMP_CRIT | DA9210_M_VMAX, 0);
if (error < 0) {
dev_err(&i2c->dev, "Failed to update mask reg: %d\n",
error);
return error;
}
} else {
dev_warn(&i2c->dev, "No IRQ configured\n");
}
i2c_set_clientdata(i2c, chip);
return 0;
}
static const struct i2c_device_id da9210_i2c_id[] = {
{"da9210", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, da9210_i2c_id);
static struct i2c_driver da9210_regulator_driver = {
.driver = {
.name = "da9210",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(da9210_dt_ids),
},
.probe = da9210_i2c_probe,
.id_table = da9210_i2c_id,
};
module_i2c_driver(da9210_regulator_driver);
MODULE_AUTHOR("S Twiss <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Dialog DA9210");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/da9210-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for RICOH RC5T583 power management chip.
*
* Copyright (c) 2011-2012, NVIDIA CORPORATION. All rights reserved.
* Author: Laxman dewangan <[email protected]>
*
* based on code
* Copyright (C) 2011 RICOH COMPANY,LTD
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/rc5t583.h>
struct rc5t583_regulator_info {
int deepsleep_id;
/* Regulator register address.*/
uint8_t reg_disc_reg;
uint8_t disc_bit;
uint8_t deepsleep_reg;
/* Regulator specific turn-on delay and voltage settling time*/
int enable_uv_per_us;
/* Used by regulator core */
struct regulator_desc desc;
};
static int rc5t583_regulator_enable_time(struct regulator_dev *rdev)
{
struct rc5t583_regulator_info *reg_info = rdev_get_drvdata(rdev);
int vsel = regulator_get_voltage_sel_regmap(rdev);
int curr_uV = regulator_list_voltage_linear(rdev, vsel);
return DIV_ROUND_UP(curr_uV, reg_info->enable_uv_per_us);
}
static const struct regulator_ops rc5t583_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.enable_time = rc5t583_regulator_enable_time,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
#define RC5T583_REG(_id, _en_reg, _en_bit, _disc_reg, _disc_bit, \
_vout_mask, _min_mv, _max_mv, _step_uV, _enable_mv) \
{ \
.reg_disc_reg = RC5T583_REG_##_disc_reg, \
.disc_bit = _disc_bit, \
.deepsleep_reg = RC5T583_REG_##_id##DAC_DS, \
.enable_uv_per_us = _enable_mv * 1000, \
.deepsleep_id = RC5T583_DS_##_id, \
.desc = { \
.name = "rc5t583-regulator-"#_id, \
.id = RC5T583_REGULATOR_##_id, \
.n_voltages = (_max_mv - _min_mv) * 1000 / _step_uV + 1, \
.ops = &rc5t583_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = RC5T583_REG_##_id##DAC, \
.vsel_mask = _vout_mask, \
.enable_reg = RC5T583_REG_##_en_reg, \
.enable_mask = BIT(_en_bit), \
.min_uV = _min_mv * 1000, \
.uV_step = _step_uV, \
.ramp_delay = 40 * 1000, \
}, \
}
static struct rc5t583_regulator_info rc5t583_reg_info[RC5T583_REGULATOR_MAX] = {
RC5T583_REG(DC0, DC0CTL, 0, DC0CTL, 1, 0x7F, 700, 1500, 12500, 4),
RC5T583_REG(DC1, DC1CTL, 0, DC1CTL, 1, 0x7F, 700, 1500, 12500, 14),
RC5T583_REG(DC2, DC2CTL, 0, DC2CTL, 1, 0x7F, 900, 2400, 12500, 14),
RC5T583_REG(DC3, DC3CTL, 0, DC3CTL, 1, 0x7F, 900, 2400, 12500, 14),
RC5T583_REG(LDO0, LDOEN2, 0, LDODIS2, 0, 0x7F, 900, 3400, 25000, 160),
RC5T583_REG(LDO1, LDOEN2, 1, LDODIS2, 1, 0x7F, 900, 3400, 25000, 160),
RC5T583_REG(LDO2, LDOEN2, 2, LDODIS2, 2, 0x7F, 900, 3400, 25000, 160),
RC5T583_REG(LDO3, LDOEN2, 3, LDODIS2, 3, 0x7F, 900, 3400, 25000, 160),
RC5T583_REG(LDO4, LDOEN2, 4, LDODIS2, 4, 0x3F, 750, 1500, 12500, 133),
RC5T583_REG(LDO5, LDOEN2, 5, LDODIS2, 5, 0x7F, 900, 3400, 25000, 267),
RC5T583_REG(LDO6, LDOEN2, 6, LDODIS2, 6, 0x7F, 900, 3400, 25000, 133),
RC5T583_REG(LDO7, LDOEN2, 7, LDODIS2, 7, 0x7F, 900, 3400, 25000, 233),
RC5T583_REG(LDO8, LDOEN1, 0, LDODIS1, 0, 0x7F, 900, 3400, 25000, 233),
RC5T583_REG(LDO9, LDOEN1, 1, LDODIS1, 1, 0x7F, 900, 3400, 25000, 133),
};
static int rc5t583_regulator_probe(struct platform_device *pdev)
{
struct rc5t583 *rc5t583 = dev_get_drvdata(pdev->dev.parent);
struct rc5t583_platform_data *pdata = dev_get_platdata(rc5t583->dev);
struct regulator_config config = { };
struct regulator_dev *rdev;
struct rc5t583_regulator_info *ri;
int ret;
int id;
if (!pdata) {
dev_err(&pdev->dev, "No platform data, exiting...\n");
return -ENODEV;
}
for (id = 0; id < RC5T583_REGULATOR_MAX; ++id) {
ri = &rc5t583_reg_info[id];
if (ri->deepsleep_id == RC5T583_DS_NONE)
goto skip_ext_pwr_config;
ret = rc5t583_ext_power_req_config(rc5t583->dev,
ri->deepsleep_id,
pdata->regulator_ext_pwr_control[id],
pdata->regulator_deepsleep_slot[id]);
/*
* Configuring external control is not a major issue,
* just give warning.
*/
if (ret < 0)
dev_warn(&pdev->dev,
"Failed to configure ext control %d\n", id);
skip_ext_pwr_config:
config.dev = &pdev->dev;
config.init_data = pdata->reg_init_data[id];
config.driver_data = ri;
config.regmap = rc5t583->regmap;
rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "Failed to register regulator %s\n",
ri->desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver rc5t583_regulator_driver = {
.driver = {
.name = "rc5t583-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = rc5t583_regulator_probe,
};
static int __init rc5t583_regulator_init(void)
{
return platform_driver_register(&rc5t583_regulator_driver);
}
subsys_initcall(rc5t583_regulator_init);
static void __exit rc5t583_regulator_exit(void)
{
platform_driver_unregister(&rc5t583_regulator_driver);
}
module_exit(rc5t583_regulator_exit);
MODULE_AUTHOR("Laxman Dewangan <[email protected]>");
MODULE_DESCRIPTION("RC5T583 regulator driver");
MODULE_ALIAS("platform:rc5t583-regulator");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rc5t583-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
//
// core.c -- Voltage/Current Regulator framework.
//
// Copyright 2007, 2008 Wolfson Microelectronics PLC.
// Copyright 2008 SlimLogic Ltd.
//
// Author: Liam Girdwood <[email protected]>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/async.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/suspend.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/coupler.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/module.h>
#define CREATE_TRACE_POINTS
#include <trace/events/regulator.h>
#include "dummy.h"
#include "internal.h"
static DEFINE_WW_CLASS(regulator_ww_class);
static DEFINE_MUTEX(regulator_nesting_mutex);
static DEFINE_MUTEX(regulator_list_mutex);
static LIST_HEAD(regulator_map_list);
static LIST_HEAD(regulator_ena_gpio_list);
static LIST_HEAD(regulator_supply_alias_list);
static LIST_HEAD(regulator_coupler_list);
static bool has_full_constraints;
static struct dentry *debugfs_root;
/*
* struct regulator_map
*
* Used to provide symbolic supply names to devices.
*/
struct regulator_map {
struct list_head list;
const char *dev_name; /* The dev_name() for the consumer */
const char *supply;
struct regulator_dev *regulator;
};
/*
* struct regulator_enable_gpio
*
* Management for shared enable GPIO pin
*/
struct regulator_enable_gpio {
struct list_head list;
struct gpio_desc *gpiod;
u32 enable_count; /* a number of enabled shared GPIO */
u32 request_count; /* a number of requested shared GPIO */
};
/*
* struct regulator_supply_alias
*
* Used to map lookups for a supply onto an alternative device.
*/
struct regulator_supply_alias {
struct list_head list;
struct device *src_dev;
const char *src_supply;
struct device *alias_dev;
const char *alias_supply;
};
static int _regulator_is_enabled(struct regulator_dev *rdev);
static int _regulator_disable(struct regulator *regulator);
static int _regulator_get_error_flags(struct regulator_dev *rdev, unsigned int *flags);
static int _regulator_get_current_limit(struct regulator_dev *rdev);
static unsigned int _regulator_get_mode(struct regulator_dev *rdev);
static int _notifier_call_chain(struct regulator_dev *rdev,
unsigned long event, void *data);
static int _regulator_do_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV);
static int regulator_balance_voltage(struct regulator_dev *rdev,
suspend_state_t state);
static struct regulator *create_regulator(struct regulator_dev *rdev,
struct device *dev,
const char *supply_name);
static void destroy_regulator(struct regulator *regulator);
static void _regulator_put(struct regulator *regulator);
const char *rdev_get_name(struct regulator_dev *rdev)
{
if (rdev->constraints && rdev->constraints->name)
return rdev->constraints->name;
else if (rdev->desc->name)
return rdev->desc->name;
else
return "";
}
EXPORT_SYMBOL_GPL(rdev_get_name);
static bool have_full_constraints(void)
{
return has_full_constraints || of_have_populated_dt();
}
static bool regulator_ops_is_valid(struct regulator_dev *rdev, int ops)
{
if (!rdev->constraints) {
rdev_err(rdev, "no constraints\n");
return false;
}
if (rdev->constraints->valid_ops_mask & ops)
return true;
return false;
}
/**
* regulator_lock_nested - lock a single regulator
* @rdev: regulator source
* @ww_ctx: w/w mutex acquire context
*
* This function can be called many times by one task on
* a single regulator and its mutex will be locked only
* once. If a task, which is calling this function is other
* than the one, which initially locked the mutex, it will
* wait on mutex.
*/
static inline int regulator_lock_nested(struct regulator_dev *rdev,
struct ww_acquire_ctx *ww_ctx)
{
bool lock = false;
int ret = 0;
mutex_lock(®ulator_nesting_mutex);
if (!ww_mutex_trylock(&rdev->mutex, ww_ctx)) {
if (rdev->mutex_owner == current)
rdev->ref_cnt++;
else
lock = true;
if (lock) {
mutex_unlock(®ulator_nesting_mutex);
ret = ww_mutex_lock(&rdev->mutex, ww_ctx);
mutex_lock(®ulator_nesting_mutex);
}
} else {
lock = true;
}
if (lock && ret != -EDEADLK) {
rdev->ref_cnt++;
rdev->mutex_owner = current;
}
mutex_unlock(®ulator_nesting_mutex);
return ret;
}
/**
* regulator_lock - lock a single regulator
* @rdev: regulator source
*
* This function can be called many times by one task on
* a single regulator and its mutex will be locked only
* once. If a task, which is calling this function is other
* than the one, which initially locked the mutex, it will
* wait on mutex.
*/
static void regulator_lock(struct regulator_dev *rdev)
{
regulator_lock_nested(rdev, NULL);
}
/**
* regulator_unlock - unlock a single regulator
* @rdev: regulator_source
*
* This function unlocks the mutex when the
* reference counter reaches 0.
*/
static void regulator_unlock(struct regulator_dev *rdev)
{
mutex_lock(®ulator_nesting_mutex);
if (--rdev->ref_cnt == 0) {
rdev->mutex_owner = NULL;
ww_mutex_unlock(&rdev->mutex);
}
WARN_ON_ONCE(rdev->ref_cnt < 0);
mutex_unlock(®ulator_nesting_mutex);
}
/**
* regulator_lock_two - lock two regulators
* @rdev1: first regulator
* @rdev2: second regulator
* @ww_ctx: w/w mutex acquire context
*
* Locks both rdevs using the regulator_ww_class.
*/
static void regulator_lock_two(struct regulator_dev *rdev1,
struct regulator_dev *rdev2,
struct ww_acquire_ctx *ww_ctx)
{
struct regulator_dev *held, *contended;
int ret;
ww_acquire_init(ww_ctx, ®ulator_ww_class);
/* Try to just grab both of them */
ret = regulator_lock_nested(rdev1, ww_ctx);
WARN_ON(ret);
ret = regulator_lock_nested(rdev2, ww_ctx);
if (ret != -EDEADLOCK) {
WARN_ON(ret);
goto exit;
}
held = rdev1;
contended = rdev2;
while (true) {
regulator_unlock(held);
ww_mutex_lock_slow(&contended->mutex, ww_ctx);
contended->ref_cnt++;
contended->mutex_owner = current;
swap(held, contended);
ret = regulator_lock_nested(contended, ww_ctx);
if (ret != -EDEADLOCK) {
WARN_ON(ret);
break;
}
}
exit:
ww_acquire_done(ww_ctx);
}
/**
* regulator_unlock_two - unlock two regulators
* @rdev1: first regulator
* @rdev2: second regulator
* @ww_ctx: w/w mutex acquire context
*
* The inverse of regulator_lock_two().
*/
static void regulator_unlock_two(struct regulator_dev *rdev1,
struct regulator_dev *rdev2,
struct ww_acquire_ctx *ww_ctx)
{
regulator_unlock(rdev2);
regulator_unlock(rdev1);
ww_acquire_fini(ww_ctx);
}
static bool regulator_supply_is_couple(struct regulator_dev *rdev)
{
struct regulator_dev *c_rdev;
int i;
for (i = 1; i < rdev->coupling_desc.n_coupled; i++) {
c_rdev = rdev->coupling_desc.coupled_rdevs[i];
if (rdev->supply->rdev == c_rdev)
return true;
}
return false;
}
static void regulator_unlock_recursive(struct regulator_dev *rdev,
unsigned int n_coupled)
{
struct regulator_dev *c_rdev, *supply_rdev;
int i, supply_n_coupled;
for (i = n_coupled; i > 0; i--) {
c_rdev = rdev->coupling_desc.coupled_rdevs[i - 1];
if (!c_rdev)
continue;
if (c_rdev->supply && !regulator_supply_is_couple(c_rdev)) {
supply_rdev = c_rdev->supply->rdev;
supply_n_coupled = supply_rdev->coupling_desc.n_coupled;
regulator_unlock_recursive(supply_rdev,
supply_n_coupled);
}
regulator_unlock(c_rdev);
}
}
static int regulator_lock_recursive(struct regulator_dev *rdev,
struct regulator_dev **new_contended_rdev,
struct regulator_dev **old_contended_rdev,
struct ww_acquire_ctx *ww_ctx)
{
struct regulator_dev *c_rdev;
int i, err;
for (i = 0; i < rdev->coupling_desc.n_coupled; i++) {
c_rdev = rdev->coupling_desc.coupled_rdevs[i];
if (!c_rdev)
continue;
if (c_rdev != *old_contended_rdev) {
err = regulator_lock_nested(c_rdev, ww_ctx);
if (err) {
if (err == -EDEADLK) {
*new_contended_rdev = c_rdev;
goto err_unlock;
}
/* shouldn't happen */
WARN_ON_ONCE(err != -EALREADY);
}
} else {
*old_contended_rdev = NULL;
}
if (c_rdev->supply && !regulator_supply_is_couple(c_rdev)) {
err = regulator_lock_recursive(c_rdev->supply->rdev,
new_contended_rdev,
old_contended_rdev,
ww_ctx);
if (err) {
regulator_unlock(c_rdev);
goto err_unlock;
}
}
}
return 0;
err_unlock:
regulator_unlock_recursive(rdev, i);
return err;
}
/**
* regulator_unlock_dependent - unlock regulator's suppliers and coupled
* regulators
* @rdev: regulator source
* @ww_ctx: w/w mutex acquire context
*
* Unlock all regulators related with rdev by coupling or supplying.
*/
static void regulator_unlock_dependent(struct regulator_dev *rdev,
struct ww_acquire_ctx *ww_ctx)
{
regulator_unlock_recursive(rdev, rdev->coupling_desc.n_coupled);
ww_acquire_fini(ww_ctx);
}
/**
* regulator_lock_dependent - lock regulator's suppliers and coupled regulators
* @rdev: regulator source
* @ww_ctx: w/w mutex acquire context
*
* This function as a wrapper on regulator_lock_recursive(), which locks
* all regulators related with rdev by coupling or supplying.
*/
static void regulator_lock_dependent(struct regulator_dev *rdev,
struct ww_acquire_ctx *ww_ctx)
{
struct regulator_dev *new_contended_rdev = NULL;
struct regulator_dev *old_contended_rdev = NULL;
int err;
mutex_lock(®ulator_list_mutex);
ww_acquire_init(ww_ctx, ®ulator_ww_class);
do {
if (new_contended_rdev) {
ww_mutex_lock_slow(&new_contended_rdev->mutex, ww_ctx);
old_contended_rdev = new_contended_rdev;
old_contended_rdev->ref_cnt++;
old_contended_rdev->mutex_owner = current;
}
err = regulator_lock_recursive(rdev,
&new_contended_rdev,
&old_contended_rdev,
ww_ctx);
if (old_contended_rdev)
regulator_unlock(old_contended_rdev);
} while (err == -EDEADLK);
ww_acquire_done(ww_ctx);
mutex_unlock(®ulator_list_mutex);
}
/**
* of_get_child_regulator - get a child regulator device node
* based on supply name
* @parent: Parent device node
* @prop_name: Combination regulator supply name and "-supply"
*
* Traverse all child nodes.
* Extract the child regulator device node corresponding to the supply name.
* returns the device node corresponding to the regulator if found, else
* returns NULL.
*/
static struct device_node *of_get_child_regulator(struct device_node *parent,
const char *prop_name)
{
struct device_node *regnode = NULL;
struct device_node *child = NULL;
for_each_child_of_node(parent, child) {
regnode = of_parse_phandle(child, prop_name, 0);
if (!regnode) {
regnode = of_get_child_regulator(child, prop_name);
if (regnode)
goto err_node_put;
} else {
goto err_node_put;
}
}
return NULL;
err_node_put:
of_node_put(child);
return regnode;
}
/**
* of_get_regulator - get a regulator device node based on supply name
* @dev: Device pointer for the consumer (of regulator) device
* @supply: regulator supply name
*
* Extract the regulator device node corresponding to the supply name.
* returns the device node corresponding to the regulator if found, else
* returns NULL.
*/
static struct device_node *of_get_regulator(struct device *dev, const char *supply)
{
struct device_node *regnode = NULL;
char prop_name[64]; /* 64 is max size of property name */
dev_dbg(dev, "Looking up %s-supply from device tree\n", supply);
snprintf(prop_name, 64, "%s-supply", supply);
regnode = of_parse_phandle(dev->of_node, prop_name, 0);
if (!regnode) {
regnode = of_get_child_regulator(dev->of_node, prop_name);
if (regnode)
return regnode;
dev_dbg(dev, "Looking up %s property in node %pOF failed\n",
prop_name, dev->of_node);
return NULL;
}
return regnode;
}
/* Platform voltage constraint check */
int regulator_check_voltage(struct regulator_dev *rdev,
int *min_uV, int *max_uV)
{
BUG_ON(*min_uV > *max_uV);
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
rdev_err(rdev, "voltage operation not allowed\n");
return -EPERM;
}
if (*max_uV > rdev->constraints->max_uV)
*max_uV = rdev->constraints->max_uV;
if (*min_uV < rdev->constraints->min_uV)
*min_uV = rdev->constraints->min_uV;
if (*min_uV > *max_uV) {
rdev_err(rdev, "unsupportable voltage range: %d-%duV\n",
*min_uV, *max_uV);
return -EINVAL;
}
return 0;
}
/* return 0 if the state is valid */
static int regulator_check_states(suspend_state_t state)
{
return (state > PM_SUSPEND_MAX || state == PM_SUSPEND_TO_IDLE);
}
/* Make sure we select a voltage that suits the needs of all
* regulator consumers
*/
int regulator_check_consumers(struct regulator_dev *rdev,
int *min_uV, int *max_uV,
suspend_state_t state)
{
struct regulator *regulator;
struct regulator_voltage *voltage;
list_for_each_entry(regulator, &rdev->consumer_list, list) {
voltage = ®ulator->voltage[state];
/*
* Assume consumers that didn't say anything are OK
* with anything in the constraint range.
*/
if (!voltage->min_uV && !voltage->max_uV)
continue;
if (*max_uV > voltage->max_uV)
*max_uV = voltage->max_uV;
if (*min_uV < voltage->min_uV)
*min_uV = voltage->min_uV;
}
if (*min_uV > *max_uV) {
rdev_err(rdev, "Restricting voltage, %u-%uuV\n",
*min_uV, *max_uV);
return -EINVAL;
}
return 0;
}
/* current constraint check */
static int regulator_check_current_limit(struct regulator_dev *rdev,
int *min_uA, int *max_uA)
{
BUG_ON(*min_uA > *max_uA);
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_CURRENT)) {
rdev_err(rdev, "current operation not allowed\n");
return -EPERM;
}
if (*max_uA > rdev->constraints->max_uA)
*max_uA = rdev->constraints->max_uA;
if (*min_uA < rdev->constraints->min_uA)
*min_uA = rdev->constraints->min_uA;
if (*min_uA > *max_uA) {
rdev_err(rdev, "unsupportable current range: %d-%duA\n",
*min_uA, *max_uA);
return -EINVAL;
}
return 0;
}
/* operating mode constraint check */
static int regulator_mode_constrain(struct regulator_dev *rdev,
unsigned int *mode)
{
switch (*mode) {
case REGULATOR_MODE_FAST:
case REGULATOR_MODE_NORMAL:
case REGULATOR_MODE_IDLE:
case REGULATOR_MODE_STANDBY:
break;
default:
rdev_err(rdev, "invalid mode %x specified\n", *mode);
return -EINVAL;
}
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_MODE)) {
rdev_err(rdev, "mode operation not allowed\n");
return -EPERM;
}
/* The modes are bitmasks, the most power hungry modes having
* the lowest values. If the requested mode isn't supported
* try higher modes.
*/
while (*mode) {
if (rdev->constraints->valid_modes_mask & *mode)
return 0;
*mode /= 2;
}
return -EINVAL;
}
static inline struct regulator_state *
regulator_get_suspend_state(struct regulator_dev *rdev, suspend_state_t state)
{
if (rdev->constraints == NULL)
return NULL;
switch (state) {
case PM_SUSPEND_STANDBY:
return &rdev->constraints->state_standby;
case PM_SUSPEND_MEM:
return &rdev->constraints->state_mem;
case PM_SUSPEND_MAX:
return &rdev->constraints->state_disk;
default:
return NULL;
}
}
static const struct regulator_state *
regulator_get_suspend_state_check(struct regulator_dev *rdev, suspend_state_t state)
{
const struct regulator_state *rstate;
rstate = regulator_get_suspend_state(rdev, state);
if (rstate == NULL)
return NULL;
/* If we have no suspend mode configuration don't set anything;
* only warn if the driver implements set_suspend_voltage or
* set_suspend_mode callback.
*/
if (rstate->enabled != ENABLE_IN_SUSPEND &&
rstate->enabled != DISABLE_IN_SUSPEND) {
if (rdev->desc->ops->set_suspend_voltage ||
rdev->desc->ops->set_suspend_mode)
rdev_warn(rdev, "No configuration\n");
return NULL;
}
return rstate;
}
static ssize_t microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
int uV;
regulator_lock(rdev);
uV = regulator_get_voltage_rdev(rdev);
regulator_unlock(rdev);
if (uV < 0)
return uV;
return sprintf(buf, "%d\n", uV);
}
static DEVICE_ATTR_RO(microvolts);
static ssize_t microamps_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", _regulator_get_current_limit(rdev));
}
static DEVICE_ATTR_RO(microamps);
static ssize_t name_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", rdev_get_name(rdev));
}
static DEVICE_ATTR_RO(name);
static const char *regulator_opmode_to_str(int mode)
{
switch (mode) {
case REGULATOR_MODE_FAST:
return "fast";
case REGULATOR_MODE_NORMAL:
return "normal";
case REGULATOR_MODE_IDLE:
return "idle";
case REGULATOR_MODE_STANDBY:
return "standby";
}
return "unknown";
}
static ssize_t regulator_print_opmode(char *buf, int mode)
{
return sprintf(buf, "%s\n", regulator_opmode_to_str(mode));
}
static ssize_t opmode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_opmode(buf, _regulator_get_mode(rdev));
}
static DEVICE_ATTR_RO(opmode);
static ssize_t regulator_print_state(char *buf, int state)
{
if (state > 0)
return sprintf(buf, "enabled\n");
else if (state == 0)
return sprintf(buf, "disabled\n");
else
return sprintf(buf, "unknown\n");
}
static ssize_t state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
ssize_t ret;
regulator_lock(rdev);
ret = regulator_print_state(buf, _regulator_is_enabled(rdev));
regulator_unlock(rdev);
return ret;
}
static DEVICE_ATTR_RO(state);
static ssize_t status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
int status;
char *label;
status = rdev->desc->ops->get_status(rdev);
if (status < 0)
return status;
switch (status) {
case REGULATOR_STATUS_OFF:
label = "off";
break;
case REGULATOR_STATUS_ON:
label = "on";
break;
case REGULATOR_STATUS_ERROR:
label = "error";
break;
case REGULATOR_STATUS_FAST:
label = "fast";
break;
case REGULATOR_STATUS_NORMAL:
label = "normal";
break;
case REGULATOR_STATUS_IDLE:
label = "idle";
break;
case REGULATOR_STATUS_STANDBY:
label = "standby";
break;
case REGULATOR_STATUS_BYPASS:
label = "bypass";
break;
case REGULATOR_STATUS_UNDEFINED:
label = "undefined";
break;
default:
return -ERANGE;
}
return sprintf(buf, "%s\n", label);
}
static DEVICE_ATTR_RO(status);
static ssize_t min_microamps_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
if (!rdev->constraints)
return sprintf(buf, "constraint not defined\n");
return sprintf(buf, "%d\n", rdev->constraints->min_uA);
}
static DEVICE_ATTR_RO(min_microamps);
static ssize_t max_microamps_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
if (!rdev->constraints)
return sprintf(buf, "constraint not defined\n");
return sprintf(buf, "%d\n", rdev->constraints->max_uA);
}
static DEVICE_ATTR_RO(max_microamps);
static ssize_t min_microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
if (!rdev->constraints)
return sprintf(buf, "constraint not defined\n");
return sprintf(buf, "%d\n", rdev->constraints->min_uV);
}
static DEVICE_ATTR_RO(min_microvolts);
static ssize_t max_microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
if (!rdev->constraints)
return sprintf(buf, "constraint not defined\n");
return sprintf(buf, "%d\n", rdev->constraints->max_uV);
}
static DEVICE_ATTR_RO(max_microvolts);
static ssize_t requested_microamps_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
struct regulator *regulator;
int uA = 0;
regulator_lock(rdev);
list_for_each_entry(regulator, &rdev->consumer_list, list) {
if (regulator->enable_count)
uA += regulator->uA_load;
}
regulator_unlock(rdev);
return sprintf(buf, "%d\n", uA);
}
static DEVICE_ATTR_RO(requested_microamps);
static ssize_t num_users_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", rdev->use_count);
}
static DEVICE_ATTR_RO(num_users);
static ssize_t type_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
switch (rdev->desc->type) {
case REGULATOR_VOLTAGE:
return sprintf(buf, "voltage\n");
case REGULATOR_CURRENT:
return sprintf(buf, "current\n");
}
return sprintf(buf, "unknown\n");
}
static DEVICE_ATTR_RO(type);
static ssize_t suspend_mem_microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", rdev->constraints->state_mem.uV);
}
static DEVICE_ATTR_RO(suspend_mem_microvolts);
static ssize_t suspend_disk_microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", rdev->constraints->state_disk.uV);
}
static DEVICE_ATTR_RO(suspend_disk_microvolts);
static ssize_t suspend_standby_microvolts_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", rdev->constraints->state_standby.uV);
}
static DEVICE_ATTR_RO(suspend_standby_microvolts);
static ssize_t suspend_mem_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_opmode(buf,
rdev->constraints->state_mem.mode);
}
static DEVICE_ATTR_RO(suspend_mem_mode);
static ssize_t suspend_disk_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_opmode(buf,
rdev->constraints->state_disk.mode);
}
static DEVICE_ATTR_RO(suspend_disk_mode);
static ssize_t suspend_standby_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_opmode(buf,
rdev->constraints->state_standby.mode);
}
static DEVICE_ATTR_RO(suspend_standby_mode);
static ssize_t suspend_mem_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_state(buf,
rdev->constraints->state_mem.enabled);
}
static DEVICE_ATTR_RO(suspend_mem_state);
static ssize_t suspend_disk_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_state(buf,
rdev->constraints->state_disk.enabled);
}
static DEVICE_ATTR_RO(suspend_disk_state);
static ssize_t suspend_standby_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
return regulator_print_state(buf,
rdev->constraints->state_standby.enabled);
}
static DEVICE_ATTR_RO(suspend_standby_state);
static ssize_t bypass_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
const char *report;
bool bypass;
int ret;
ret = rdev->desc->ops->get_bypass(rdev, &bypass);
if (ret != 0)
report = "unknown";
else if (bypass)
report = "enabled";
else
report = "disabled";
return sprintf(buf, "%s\n", report);
}
static DEVICE_ATTR_RO(bypass);
#define REGULATOR_ERROR_ATTR(name, bit) \
static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
char *buf) \
{ \
int ret; \
unsigned int flags; \
struct regulator_dev *rdev = dev_get_drvdata(dev); \
ret = _regulator_get_error_flags(rdev, &flags); \
if (ret) \
return ret; \
return sysfs_emit(buf, "%d\n", !!(flags & (bit))); \
} \
static DEVICE_ATTR_RO(name)
REGULATOR_ERROR_ATTR(under_voltage, REGULATOR_ERROR_UNDER_VOLTAGE);
REGULATOR_ERROR_ATTR(over_current, REGULATOR_ERROR_OVER_CURRENT);
REGULATOR_ERROR_ATTR(regulation_out, REGULATOR_ERROR_REGULATION_OUT);
REGULATOR_ERROR_ATTR(fail, REGULATOR_ERROR_FAIL);
REGULATOR_ERROR_ATTR(over_temp, REGULATOR_ERROR_OVER_TEMP);
REGULATOR_ERROR_ATTR(under_voltage_warn, REGULATOR_ERROR_UNDER_VOLTAGE_WARN);
REGULATOR_ERROR_ATTR(over_current_warn, REGULATOR_ERROR_OVER_CURRENT_WARN);
REGULATOR_ERROR_ATTR(over_voltage_warn, REGULATOR_ERROR_OVER_VOLTAGE_WARN);
REGULATOR_ERROR_ATTR(over_temp_warn, REGULATOR_ERROR_OVER_TEMP_WARN);
/* Calculate the new optimum regulator operating mode based on the new total
* consumer load. All locks held by caller
*/
static int drms_uA_update(struct regulator_dev *rdev)
{
struct regulator *sibling;
int current_uA = 0, output_uV, input_uV, err;
unsigned int mode;
/*
* first check to see if we can set modes at all, otherwise just
* tell the consumer everything is OK.
*/
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS)) {
rdev_dbg(rdev, "DRMS operation not allowed\n");
return 0;
}
if (!rdev->desc->ops->get_optimum_mode &&
!rdev->desc->ops->set_load)
return 0;
if (!rdev->desc->ops->set_mode &&
!rdev->desc->ops->set_load)
return -EINVAL;
/* calc total requested load */
list_for_each_entry(sibling, &rdev->consumer_list, list) {
if (sibling->enable_count)
current_uA += sibling->uA_load;
}
current_uA += rdev->constraints->system_load;
if (rdev->desc->ops->set_load) {
/* set the optimum mode for our new total regulator load */
err = rdev->desc->ops->set_load(rdev, current_uA);
if (err < 0)
rdev_err(rdev, "failed to set load %d: %pe\n",
current_uA, ERR_PTR(err));
} else {
/*
* Unfortunately in some cases the constraints->valid_ops has
* REGULATOR_CHANGE_DRMS but there are no valid modes listed.
* That's not really legit but we won't consider it a fatal
* error here. We'll treat it as if REGULATOR_CHANGE_DRMS
* wasn't set.
*/
if (!rdev->constraints->valid_modes_mask) {
rdev_dbg(rdev, "Can change modes; but no valid mode\n");
return 0;
}
/* get output voltage */
output_uV = regulator_get_voltage_rdev(rdev);
/*
* Don't return an error; if regulator driver cares about
* output_uV then it's up to the driver to validate.
*/
if (output_uV <= 0)
rdev_dbg(rdev, "invalid output voltage found\n");
/* get input voltage */
input_uV = 0;
if (rdev->supply)
input_uV = regulator_get_voltage_rdev(rdev->supply->rdev);
if (input_uV <= 0)
input_uV = rdev->constraints->input_uV;
/*
* Don't return an error; if regulator driver cares about
* input_uV then it's up to the driver to validate.
*/
if (input_uV <= 0)
rdev_dbg(rdev, "invalid input voltage found\n");
/* now get the optimum mode for our new total regulator load */
mode = rdev->desc->ops->get_optimum_mode(rdev, input_uV,
output_uV, current_uA);
/* check the new mode is allowed */
err = regulator_mode_constrain(rdev, &mode);
if (err < 0) {
rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV: %pe\n",
current_uA, input_uV, output_uV, ERR_PTR(err));
return err;
}
err = rdev->desc->ops->set_mode(rdev, mode);
if (err < 0)
rdev_err(rdev, "failed to set optimum mode %x: %pe\n",
mode, ERR_PTR(err));
}
return err;
}
static int __suspend_set_state(struct regulator_dev *rdev,
const struct regulator_state *rstate)
{
int ret = 0;
if (rstate->enabled == ENABLE_IN_SUSPEND &&
rdev->desc->ops->set_suspend_enable)
ret = rdev->desc->ops->set_suspend_enable(rdev);
else if (rstate->enabled == DISABLE_IN_SUSPEND &&
rdev->desc->ops->set_suspend_disable)
ret = rdev->desc->ops->set_suspend_disable(rdev);
else /* OK if set_suspend_enable or set_suspend_disable is NULL */
ret = 0;
if (ret < 0) {
rdev_err(rdev, "failed to enabled/disable: %pe\n", ERR_PTR(ret));
return ret;
}
if (rdev->desc->ops->set_suspend_voltage && rstate->uV > 0) {
ret = rdev->desc->ops->set_suspend_voltage(rdev, rstate->uV);
if (ret < 0) {
rdev_err(rdev, "failed to set voltage: %pe\n", ERR_PTR(ret));
return ret;
}
}
if (rdev->desc->ops->set_suspend_mode && rstate->mode > 0) {
ret = rdev->desc->ops->set_suspend_mode(rdev, rstate->mode);
if (ret < 0) {
rdev_err(rdev, "failed to set mode: %pe\n", ERR_PTR(ret));
return ret;
}
}
return ret;
}
static int suspend_set_initial_state(struct regulator_dev *rdev)
{
const struct regulator_state *rstate;
rstate = regulator_get_suspend_state_check(rdev,
rdev->constraints->initial_state);
if (!rstate)
return 0;
return __suspend_set_state(rdev, rstate);
}
#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
static void print_constraints_debug(struct regulator_dev *rdev)
{
struct regulation_constraints *constraints = rdev->constraints;
char buf[160] = "";
size_t len = sizeof(buf) - 1;
int count = 0;
int ret;
if (constraints->min_uV && constraints->max_uV) {
if (constraints->min_uV == constraints->max_uV)
count += scnprintf(buf + count, len - count, "%d mV ",
constraints->min_uV / 1000);
else
count += scnprintf(buf + count, len - count,
"%d <--> %d mV ",
constraints->min_uV / 1000,
constraints->max_uV / 1000);
}
if (!constraints->min_uV ||
constraints->min_uV != constraints->max_uV) {
ret = regulator_get_voltage_rdev(rdev);
if (ret > 0)
count += scnprintf(buf + count, len - count,
"at %d mV ", ret / 1000);
}
if (constraints->uV_offset)
count += scnprintf(buf + count, len - count, "%dmV offset ",
constraints->uV_offset / 1000);
if (constraints->min_uA && constraints->max_uA) {
if (constraints->min_uA == constraints->max_uA)
count += scnprintf(buf + count, len - count, "%d mA ",
constraints->min_uA / 1000);
else
count += scnprintf(buf + count, len - count,
"%d <--> %d mA ",
constraints->min_uA / 1000,
constraints->max_uA / 1000);
}
if (!constraints->min_uA ||
constraints->min_uA != constraints->max_uA) {
ret = _regulator_get_current_limit(rdev);
if (ret > 0)
count += scnprintf(buf + count, len - count,
"at %d mA ", ret / 1000);
}
if (constraints->valid_modes_mask & REGULATOR_MODE_FAST)
count += scnprintf(buf + count, len - count, "fast ");
if (constraints->valid_modes_mask & REGULATOR_MODE_NORMAL)
count += scnprintf(buf + count, len - count, "normal ");
if (constraints->valid_modes_mask & REGULATOR_MODE_IDLE)
count += scnprintf(buf + count, len - count, "idle ");
if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
count += scnprintf(buf + count, len - count, "standby ");
if (!count)
count = scnprintf(buf, len, "no parameters");
else
--count;
count += scnprintf(buf + count, len - count, ", %s",
_regulator_is_enabled(rdev) ? "enabled" : "disabled");
rdev_dbg(rdev, "%s\n", buf);
}
#else /* !DEBUG && !CONFIG_DYNAMIC_DEBUG */
static inline void print_constraints_debug(struct regulator_dev *rdev) {}
#endif /* !DEBUG && !CONFIG_DYNAMIC_DEBUG */
static void print_constraints(struct regulator_dev *rdev)
{
struct regulation_constraints *constraints = rdev->constraints;
print_constraints_debug(rdev);
if ((constraints->min_uV != constraints->max_uV) &&
!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE))
rdev_warn(rdev,
"Voltage range but no REGULATOR_CHANGE_VOLTAGE\n");
}
static int machine_constraints_voltage(struct regulator_dev *rdev,
struct regulation_constraints *constraints)
{
const struct regulator_ops *ops = rdev->desc->ops;
int ret;
/* do we need to apply the constraint voltage */
if (rdev->constraints->apply_uV &&
rdev->constraints->min_uV && rdev->constraints->max_uV) {
int target_min, target_max;
int current_uV = regulator_get_voltage_rdev(rdev);
if (current_uV == -ENOTRECOVERABLE) {
/* This regulator can't be read and must be initialized */
rdev_info(rdev, "Setting %d-%duV\n",
rdev->constraints->min_uV,
rdev->constraints->max_uV);
_regulator_do_set_voltage(rdev,
rdev->constraints->min_uV,
rdev->constraints->max_uV);
current_uV = regulator_get_voltage_rdev(rdev);
}
if (current_uV < 0) {
if (current_uV != -EPROBE_DEFER)
rdev_err(rdev,
"failed to get the current voltage: %pe\n",
ERR_PTR(current_uV));
return current_uV;
}
/*
* If we're below the minimum voltage move up to the
* minimum voltage, if we're above the maximum voltage
* then move down to the maximum.
*/
target_min = current_uV;
target_max = current_uV;
if (current_uV < rdev->constraints->min_uV) {
target_min = rdev->constraints->min_uV;
target_max = rdev->constraints->min_uV;
}
if (current_uV > rdev->constraints->max_uV) {
target_min = rdev->constraints->max_uV;
target_max = rdev->constraints->max_uV;
}
if (target_min != current_uV || target_max != current_uV) {
rdev_info(rdev, "Bringing %duV into %d-%duV\n",
current_uV, target_min, target_max);
ret = _regulator_do_set_voltage(
rdev, target_min, target_max);
if (ret < 0) {
rdev_err(rdev,
"failed to apply %d-%duV constraint: %pe\n",
target_min, target_max, ERR_PTR(ret));
return ret;
}
}
}
/* constrain machine-level voltage specs to fit
* the actual range supported by this regulator.
*/
if (ops->list_voltage && rdev->desc->n_voltages) {
int count = rdev->desc->n_voltages;
int i;
int min_uV = INT_MAX;
int max_uV = INT_MIN;
int cmin = constraints->min_uV;
int cmax = constraints->max_uV;
/* it's safe to autoconfigure fixed-voltage supplies
* and the constraints are used by list_voltage.
*/
if (count == 1 && !cmin) {
cmin = 1;
cmax = INT_MAX;
constraints->min_uV = cmin;
constraints->max_uV = cmax;
}
/* voltage constraints are optional */
if ((cmin == 0) && (cmax == 0))
return 0;
/* else require explicit machine-level constraints */
if (cmin <= 0 || cmax <= 0 || cmax < cmin) {
rdev_err(rdev, "invalid voltage constraints\n");
return -EINVAL;
}
/* no need to loop voltages if range is continuous */
if (rdev->desc->continuous_voltage_range)
return 0;
/* initial: [cmin..cmax] valid, [min_uV..max_uV] not */
for (i = 0; i < count; i++) {
int value;
value = ops->list_voltage(rdev, i);
if (value <= 0)
continue;
/* maybe adjust [min_uV..max_uV] */
if (value >= cmin && value < min_uV)
min_uV = value;
if (value <= cmax && value > max_uV)
max_uV = value;
}
/* final: [min_uV..max_uV] valid iff constraints valid */
if (max_uV < min_uV) {
rdev_err(rdev,
"unsupportable voltage constraints %u-%uuV\n",
min_uV, max_uV);
return -EINVAL;
}
/* use regulator's subset of machine constraints */
if (constraints->min_uV < min_uV) {
rdev_dbg(rdev, "override min_uV, %d -> %d\n",
constraints->min_uV, min_uV);
constraints->min_uV = min_uV;
}
if (constraints->max_uV > max_uV) {
rdev_dbg(rdev, "override max_uV, %d -> %d\n",
constraints->max_uV, max_uV);
constraints->max_uV = max_uV;
}
}
return 0;
}
static int machine_constraints_current(struct regulator_dev *rdev,
struct regulation_constraints *constraints)
{
const struct regulator_ops *ops = rdev->desc->ops;
int ret;
if (!constraints->min_uA && !constraints->max_uA)
return 0;
if (constraints->min_uA > constraints->max_uA) {
rdev_err(rdev, "Invalid current constraints\n");
return -EINVAL;
}
if (!ops->set_current_limit || !ops->get_current_limit) {
rdev_warn(rdev, "Operation of current configuration missing\n");
return 0;
}
/* Set regulator current in constraints range */
ret = ops->set_current_limit(rdev, constraints->min_uA,
constraints->max_uA);
if (ret < 0) {
rdev_err(rdev, "Failed to set current constraint, %d\n", ret);
return ret;
}
return 0;
}
static int _regulator_do_enable(struct regulator_dev *rdev);
static int notif_set_limit(struct regulator_dev *rdev,
int (*set)(struct regulator_dev *, int, int, bool),
int limit, int severity)
{
bool enable;
if (limit == REGULATOR_NOTIF_LIMIT_DISABLE) {
enable = false;
limit = 0;
} else {
enable = true;
}
if (limit == REGULATOR_NOTIF_LIMIT_ENABLE)
limit = 0;
return set(rdev, limit, severity, enable);
}
static int handle_notify_limits(struct regulator_dev *rdev,
int (*set)(struct regulator_dev *, int, int, bool),
struct notification_limit *limits)
{
int ret = 0;
if (!set)
return -EOPNOTSUPP;
if (limits->prot)
ret = notif_set_limit(rdev, set, limits->prot,
REGULATOR_SEVERITY_PROT);
if (ret)
return ret;
if (limits->err)
ret = notif_set_limit(rdev, set, limits->err,
REGULATOR_SEVERITY_ERR);
if (ret)
return ret;
if (limits->warn)
ret = notif_set_limit(rdev, set, limits->warn,
REGULATOR_SEVERITY_WARN);
return ret;
}
/**
* set_machine_constraints - sets regulator constraints
* @rdev: regulator source
*
* Allows platform initialisation code to define and constrain
* regulator circuits e.g. valid voltage/current ranges, etc. NOTE:
* Constraints *must* be set by platform code in order for some
* regulator operations to proceed i.e. set_voltage, set_current_limit,
* set_mode.
*/
static int set_machine_constraints(struct regulator_dev *rdev)
{
int ret = 0;
const struct regulator_ops *ops = rdev->desc->ops;
ret = machine_constraints_voltage(rdev, rdev->constraints);
if (ret != 0)
return ret;
ret = machine_constraints_current(rdev, rdev->constraints);
if (ret != 0)
return ret;
if (rdev->constraints->ilim_uA && ops->set_input_current_limit) {
ret = ops->set_input_current_limit(rdev,
rdev->constraints->ilim_uA);
if (ret < 0) {
rdev_err(rdev, "failed to set input limit: %pe\n", ERR_PTR(ret));
return ret;
}
}
/* do we need to setup our suspend state */
if (rdev->constraints->initial_state) {
ret = suspend_set_initial_state(rdev);
if (ret < 0) {
rdev_err(rdev, "failed to set suspend state: %pe\n", ERR_PTR(ret));
return ret;
}
}
if (rdev->constraints->initial_mode) {
if (!ops->set_mode) {
rdev_err(rdev, "no set_mode operation\n");
return -EINVAL;
}
ret = ops->set_mode(rdev, rdev->constraints->initial_mode);
if (ret < 0) {
rdev_err(rdev, "failed to set initial mode: %pe\n", ERR_PTR(ret));
return ret;
}
} else if (rdev->constraints->system_load) {
/*
* We'll only apply the initial system load if an
* initial mode wasn't specified.
*/
drms_uA_update(rdev);
}
if ((rdev->constraints->ramp_delay || rdev->constraints->ramp_disable)
&& ops->set_ramp_delay) {
ret = ops->set_ramp_delay(rdev, rdev->constraints->ramp_delay);
if (ret < 0) {
rdev_err(rdev, "failed to set ramp_delay: %pe\n", ERR_PTR(ret));
return ret;
}
}
if (rdev->constraints->pull_down && ops->set_pull_down) {
ret = ops->set_pull_down(rdev);
if (ret < 0) {
rdev_err(rdev, "failed to set pull down: %pe\n", ERR_PTR(ret));
return ret;
}
}
if (rdev->constraints->soft_start && ops->set_soft_start) {
ret = ops->set_soft_start(rdev);
if (ret < 0) {
rdev_err(rdev, "failed to set soft start: %pe\n", ERR_PTR(ret));
return ret;
}
}
/*
* Existing logic does not warn if over_current_protection is given as
* a constraint but driver does not support that. I think we should
* warn about this type of issues as it is possible someone changes
* PMIC on board to another type - and the another PMIC's driver does
* not support setting protection. Board composer may happily believe
* the DT limits are respected - especially if the new PMIC HW also
* supports protection but the driver does not. I won't change the logic
* without hearing more experienced opinion on this though.
*
* If warning is seen as a good idea then we can merge handling the
* over-curret protection and detection and get rid of this special
* handling.
*/
if (rdev->constraints->over_current_protection
&& ops->set_over_current_protection) {
int lim = rdev->constraints->over_curr_limits.prot;
ret = ops->set_over_current_protection(rdev, lim,
REGULATOR_SEVERITY_PROT,
true);
if (ret < 0) {
rdev_err(rdev, "failed to set over current protection: %pe\n",
ERR_PTR(ret));
return ret;
}
}
if (rdev->constraints->over_current_detection)
ret = handle_notify_limits(rdev,
ops->set_over_current_protection,
&rdev->constraints->over_curr_limits);
if (ret) {
if (ret != -EOPNOTSUPP) {
rdev_err(rdev, "failed to set over current limits: %pe\n",
ERR_PTR(ret));
return ret;
}
rdev_warn(rdev,
"IC does not support requested over-current limits\n");
}
if (rdev->constraints->over_voltage_detection)
ret = handle_notify_limits(rdev,
ops->set_over_voltage_protection,
&rdev->constraints->over_voltage_limits);
if (ret) {
if (ret != -EOPNOTSUPP) {
rdev_err(rdev, "failed to set over voltage limits %pe\n",
ERR_PTR(ret));
return ret;
}
rdev_warn(rdev,
"IC does not support requested over voltage limits\n");
}
if (rdev->constraints->under_voltage_detection)
ret = handle_notify_limits(rdev,
ops->set_under_voltage_protection,
&rdev->constraints->under_voltage_limits);
if (ret) {
if (ret != -EOPNOTSUPP) {
rdev_err(rdev, "failed to set under voltage limits %pe\n",
ERR_PTR(ret));
return ret;
}
rdev_warn(rdev,
"IC does not support requested under voltage limits\n");
}
if (rdev->constraints->over_temp_detection)
ret = handle_notify_limits(rdev,
ops->set_thermal_protection,
&rdev->constraints->temp_limits);
if (ret) {
if (ret != -EOPNOTSUPP) {
rdev_err(rdev, "failed to set temperature limits %pe\n",
ERR_PTR(ret));
return ret;
}
rdev_warn(rdev,
"IC does not support requested temperature limits\n");
}
if (rdev->constraints->active_discharge && ops->set_active_discharge) {
bool ad_state = (rdev->constraints->active_discharge ==
REGULATOR_ACTIVE_DISCHARGE_ENABLE) ? true : false;
ret = ops->set_active_discharge(rdev, ad_state);
if (ret < 0) {
rdev_err(rdev, "failed to set active discharge: %pe\n", ERR_PTR(ret));
return ret;
}
}
/*
* If there is no mechanism for controlling the regulator then
* flag it as always_on so we don't end up duplicating checks
* for this so much. Note that we could control the state of
* a supply to control the output on a regulator that has no
* direct control.
*/
if (!rdev->ena_pin && !ops->enable) {
if (rdev->supply_name && !rdev->supply)
return -EPROBE_DEFER;
if (rdev->supply)
rdev->constraints->always_on =
rdev->supply->rdev->constraints->always_on;
else
rdev->constraints->always_on = true;
}
/* If the constraints say the regulator should be on at this point
* and we have control then make sure it is enabled.
*/
if (rdev->constraints->always_on || rdev->constraints->boot_on) {
/* If we want to enable this regulator, make sure that we know
* the supplying regulator.
*/
if (rdev->supply_name && !rdev->supply)
return -EPROBE_DEFER;
/* If supplying regulator has already been enabled,
* it's not intended to have use_count increment
* when rdev is only boot-on.
*/
if (rdev->supply &&
(rdev->constraints->always_on ||
!regulator_is_enabled(rdev->supply))) {
ret = regulator_enable(rdev->supply);
if (ret < 0) {
_regulator_put(rdev->supply);
rdev->supply = NULL;
return ret;
}
}
ret = _regulator_do_enable(rdev);
if (ret < 0 && ret != -EINVAL) {
rdev_err(rdev, "failed to enable: %pe\n", ERR_PTR(ret));
return ret;
}
if (rdev->constraints->always_on)
rdev->use_count++;
} else if (rdev->desc->off_on_delay) {
rdev->last_off = ktime_get();
}
print_constraints(rdev);
return 0;
}
/**
* set_supply - set regulator supply regulator
* @rdev: regulator (locked)
* @supply_rdev: supply regulator (locked))
*
* Called by platform initialisation code to set the supply regulator for this
* regulator. This ensures that a regulators supply will also be enabled by the
* core if it's child is enabled.
*/
static int set_supply(struct regulator_dev *rdev,
struct regulator_dev *supply_rdev)
{
int err;
rdev_dbg(rdev, "supplied by %s\n", rdev_get_name(supply_rdev));
if (!try_module_get(supply_rdev->owner))
return -ENODEV;
rdev->supply = create_regulator(supply_rdev, &rdev->dev, "SUPPLY");
if (rdev->supply == NULL) {
module_put(supply_rdev->owner);
err = -ENOMEM;
return err;
}
supply_rdev->open_count++;
return 0;
}
/**
* set_consumer_device_supply - Bind a regulator to a symbolic supply
* @rdev: regulator source
* @consumer_dev_name: dev_name() string for device supply applies to
* @supply: symbolic name for supply
*
* Allows platform initialisation code to map physical regulator
* sources to symbolic names for supplies for use by devices. Devices
* should use these symbolic names to request regulators, avoiding the
* need to provide board-specific regulator names as platform data.
*/
static int set_consumer_device_supply(struct regulator_dev *rdev,
const char *consumer_dev_name,
const char *supply)
{
struct regulator_map *node, *new_node;
int has_dev;
if (supply == NULL)
return -EINVAL;
if (consumer_dev_name != NULL)
has_dev = 1;
else
has_dev = 0;
new_node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL);
if (new_node == NULL)
return -ENOMEM;
new_node->regulator = rdev;
new_node->supply = supply;
if (has_dev) {
new_node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
if (new_node->dev_name == NULL) {
kfree(new_node);
return -ENOMEM;
}
}
mutex_lock(®ulator_list_mutex);
list_for_each_entry(node, ®ulator_map_list, list) {
if (node->dev_name && consumer_dev_name) {
if (strcmp(node->dev_name, consumer_dev_name) != 0)
continue;
} else if (node->dev_name || consumer_dev_name) {
continue;
}
if (strcmp(node->supply, supply) != 0)
continue;
pr_debug("%s: %s/%s is '%s' supply; fail %s/%s\n",
consumer_dev_name,
dev_name(&node->regulator->dev),
node->regulator->desc->name,
supply,
dev_name(&rdev->dev), rdev_get_name(rdev));
goto fail;
}
list_add(&new_node->list, ®ulator_map_list);
mutex_unlock(®ulator_list_mutex);
return 0;
fail:
mutex_unlock(®ulator_list_mutex);
kfree(new_node->dev_name);
kfree(new_node);
return -EBUSY;
}
static void unset_regulator_supplies(struct regulator_dev *rdev)
{
struct regulator_map *node, *n;
list_for_each_entry_safe(node, n, ®ulator_map_list, list) {
if (rdev == node->regulator) {
list_del(&node->list);
kfree(node->dev_name);
kfree(node);
}
}
}
#ifdef CONFIG_DEBUG_FS
static ssize_t constraint_flags_read_file(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
const struct regulator *regulator = file->private_data;
const struct regulation_constraints *c = regulator->rdev->constraints;
char *buf;
ssize_t ret;
if (!c)
return 0;
buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = snprintf(buf, PAGE_SIZE,
"always_on: %u\n"
"boot_on: %u\n"
"apply_uV: %u\n"
"ramp_disable: %u\n"
"soft_start: %u\n"
"pull_down: %u\n"
"over_current_protection: %u\n",
c->always_on,
c->boot_on,
c->apply_uV,
c->ramp_disable,
c->soft_start,
c->pull_down,
c->over_current_protection);
ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
kfree(buf);
return ret;
}
#endif
static const struct file_operations constraint_flags_fops = {
#ifdef CONFIG_DEBUG_FS
.open = simple_open,
.read = constraint_flags_read_file,
.llseek = default_llseek,
#endif
};
#define REG_STR_SIZE 64
static struct regulator *create_regulator(struct regulator_dev *rdev,
struct device *dev,
const char *supply_name)
{
struct regulator *regulator;
int err = 0;
lockdep_assert_held_once(&rdev->mutex.base);
if (dev) {
char buf[REG_STR_SIZE];
int size;
size = snprintf(buf, REG_STR_SIZE, "%s-%s",
dev->kobj.name, supply_name);
if (size >= REG_STR_SIZE)
return NULL;
supply_name = kstrdup(buf, GFP_KERNEL);
if (supply_name == NULL)
return NULL;
} else {
supply_name = kstrdup_const(supply_name, GFP_KERNEL);
if (supply_name == NULL)
return NULL;
}
regulator = kzalloc(sizeof(*regulator), GFP_KERNEL);
if (regulator == NULL) {
kfree_const(supply_name);
return NULL;
}
regulator->rdev = rdev;
regulator->supply_name = supply_name;
list_add(®ulator->list, &rdev->consumer_list);
if (dev) {
regulator->dev = dev;
/* Add a link to the device sysfs entry */
err = sysfs_create_link_nowarn(&rdev->dev.kobj, &dev->kobj,
supply_name);
if (err) {
rdev_dbg(rdev, "could not add device link %s: %pe\n",
dev->kobj.name, ERR_PTR(err));
/* non-fatal */
}
}
if (err != -EEXIST)
regulator->debugfs = debugfs_create_dir(supply_name, rdev->debugfs);
if (IS_ERR(regulator->debugfs))
rdev_dbg(rdev, "Failed to create debugfs directory\n");
debugfs_create_u32("uA_load", 0444, regulator->debugfs,
®ulator->uA_load);
debugfs_create_u32("min_uV", 0444, regulator->debugfs,
®ulator->voltage[PM_SUSPEND_ON].min_uV);
debugfs_create_u32("max_uV", 0444, regulator->debugfs,
®ulator->voltage[PM_SUSPEND_ON].max_uV);
debugfs_create_file("constraint_flags", 0444, regulator->debugfs,
regulator, &constraint_flags_fops);
/*
* Check now if the regulator is an always on regulator - if
* it is then we don't need to do nearly so much work for
* enable/disable calls.
*/
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS) &&
_regulator_is_enabled(rdev))
regulator->always_on = true;
return regulator;
}
static int _regulator_get_enable_time(struct regulator_dev *rdev)
{
if (rdev->constraints && rdev->constraints->enable_time)
return rdev->constraints->enable_time;
if (rdev->desc->ops->enable_time)
return rdev->desc->ops->enable_time(rdev);
return rdev->desc->enable_time;
}
static struct regulator_supply_alias *regulator_find_supply_alias(
struct device *dev, const char *supply)
{
struct regulator_supply_alias *map;
list_for_each_entry(map, ®ulator_supply_alias_list, list)
if (map->src_dev == dev && strcmp(map->src_supply, supply) == 0)
return map;
return NULL;
}
static void regulator_supply_alias(struct device **dev, const char **supply)
{
struct regulator_supply_alias *map;
map = regulator_find_supply_alias(*dev, *supply);
if (map) {
dev_dbg(*dev, "Mapping supply %s to %s,%s\n",
*supply, map->alias_supply,
dev_name(map->alias_dev));
*dev = map->alias_dev;
*supply = map->alias_supply;
}
}
static int regulator_match(struct device *dev, const void *data)
{
struct regulator_dev *r = dev_to_rdev(dev);
return strcmp(rdev_get_name(r), data) == 0;
}
static struct regulator_dev *regulator_lookup_by_name(const char *name)
{
struct device *dev;
dev = class_find_device(®ulator_class, NULL, name, regulator_match);
return dev ? dev_to_rdev(dev) : NULL;
}
/**
* regulator_dev_lookup - lookup a regulator device.
* @dev: device for regulator "consumer".
* @supply: Supply name or regulator ID.
*
* If successful, returns a struct regulator_dev that corresponds to the name
* @supply and with the embedded struct device refcount incremented by one.
* The refcount must be dropped by calling put_device().
* On failure one of the following ERR-PTR-encoded values is returned:
* -ENODEV if lookup fails permanently, -EPROBE_DEFER if lookup could succeed
* in the future.
*/
static struct regulator_dev *regulator_dev_lookup(struct device *dev,
const char *supply)
{
struct regulator_dev *r = NULL;
struct device_node *node;
struct regulator_map *map;
const char *devname = NULL;
regulator_supply_alias(&dev, &supply);
/* first do a dt based lookup */
if (dev && dev->of_node) {
node = of_get_regulator(dev, supply);
if (node) {
r = of_find_regulator_by_node(node);
of_node_put(node);
if (r)
return r;
/*
* We have a node, but there is no device.
* assume it has not registered yet.
*/
return ERR_PTR(-EPROBE_DEFER);
}
}
/* if not found, try doing it non-dt way */
if (dev)
devname = dev_name(dev);
mutex_lock(®ulator_list_mutex);
list_for_each_entry(map, ®ulator_map_list, list) {
/* If the mapping has a device set up it must match */
if (map->dev_name &&
(!devname || strcmp(map->dev_name, devname)))
continue;
if (strcmp(map->supply, supply) == 0 &&
get_device(&map->regulator->dev)) {
r = map->regulator;
break;
}
}
mutex_unlock(®ulator_list_mutex);
if (r)
return r;
r = regulator_lookup_by_name(supply);
if (r)
return r;
return ERR_PTR(-ENODEV);
}
static int regulator_resolve_supply(struct regulator_dev *rdev)
{
struct regulator_dev *r;
struct device *dev = rdev->dev.parent;
struct ww_acquire_ctx ww_ctx;
int ret = 0;
/* No supply to resolve? */
if (!rdev->supply_name)
return 0;
/* Supply already resolved? (fast-path without locking contention) */
if (rdev->supply)
return 0;
r = regulator_dev_lookup(dev, rdev->supply_name);
if (IS_ERR(r)) {
ret = PTR_ERR(r);
/* Did the lookup explicitly defer for us? */
if (ret == -EPROBE_DEFER)
goto out;
if (have_full_constraints()) {
r = dummy_regulator_rdev;
get_device(&r->dev);
} else {
dev_err(dev, "Failed to resolve %s-supply for %s\n",
rdev->supply_name, rdev->desc->name);
ret = -EPROBE_DEFER;
goto out;
}
}
if (r == rdev) {
dev_err(dev, "Supply for %s (%s) resolved to itself\n",
rdev->desc->name, rdev->supply_name);
if (!have_full_constraints()) {
ret = -EINVAL;
goto out;
}
r = dummy_regulator_rdev;
get_device(&r->dev);
}
/*
* If the supply's parent device is not the same as the
* regulator's parent device, then ensure the parent device
* is bound before we resolve the supply, in case the parent
* device get probe deferred and unregisters the supply.
*/
if (r->dev.parent && r->dev.parent != rdev->dev.parent) {
if (!device_is_bound(r->dev.parent)) {
put_device(&r->dev);
ret = -EPROBE_DEFER;
goto out;
}
}
/* Recursively resolve the supply of the supply */
ret = regulator_resolve_supply(r);
if (ret < 0) {
put_device(&r->dev);
goto out;
}
/*
* Recheck rdev->supply with rdev->mutex lock held to avoid a race
* between rdev->supply null check and setting rdev->supply in
* set_supply() from concurrent tasks.
*/
regulator_lock_two(rdev, r, &ww_ctx);
/* Supply just resolved by a concurrent task? */
if (rdev->supply) {
regulator_unlock_two(rdev, r, &ww_ctx);
put_device(&r->dev);
goto out;
}
ret = set_supply(rdev, r);
if (ret < 0) {
regulator_unlock_two(rdev, r, &ww_ctx);
put_device(&r->dev);
goto out;
}
regulator_unlock_two(rdev, r, &ww_ctx);
/*
* In set_machine_constraints() we may have turned this regulator on
* but we couldn't propagate to the supply if it hadn't been resolved
* yet. Do it now.
*/
if (rdev->use_count) {
ret = regulator_enable(rdev->supply);
if (ret < 0) {
_regulator_put(rdev->supply);
rdev->supply = NULL;
goto out;
}
}
out:
return ret;
}
/* Internal regulator request function */
struct regulator *_regulator_get(struct device *dev, const char *id,
enum regulator_get_type get_type)
{
struct regulator_dev *rdev;
struct regulator *regulator;
struct device_link *link;
int ret;
if (get_type >= MAX_GET_TYPE) {
dev_err(dev, "invalid type %d in %s\n", get_type, __func__);
return ERR_PTR(-EINVAL);
}
if (id == NULL) {
pr_err("get() with no identifier\n");
return ERR_PTR(-EINVAL);
}
rdev = regulator_dev_lookup(dev, id);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
/*
* If regulator_dev_lookup() fails with error other
* than -ENODEV our job here is done, we simply return it.
*/
if (ret != -ENODEV)
return ERR_PTR(ret);
if (!have_full_constraints()) {
dev_warn(dev,
"incomplete constraints, dummy supplies not allowed\n");
return ERR_PTR(-ENODEV);
}
switch (get_type) {
case NORMAL_GET:
/*
* Assume that a regulator is physically present and
* enabled, even if it isn't hooked up, and just
* provide a dummy.
*/
dev_warn(dev, "supply %s not found, using dummy regulator\n", id);
rdev = dummy_regulator_rdev;
get_device(&rdev->dev);
break;
case EXCLUSIVE_GET:
dev_warn(dev,
"dummy supplies not allowed for exclusive requests\n");
fallthrough;
default:
return ERR_PTR(-ENODEV);
}
}
if (rdev->exclusive) {
regulator = ERR_PTR(-EPERM);
put_device(&rdev->dev);
return regulator;
}
if (get_type == EXCLUSIVE_GET && rdev->open_count) {
regulator = ERR_PTR(-EBUSY);
put_device(&rdev->dev);
return regulator;
}
mutex_lock(®ulator_list_mutex);
ret = (rdev->coupling_desc.n_resolved != rdev->coupling_desc.n_coupled);
mutex_unlock(®ulator_list_mutex);
if (ret != 0) {
regulator = ERR_PTR(-EPROBE_DEFER);
put_device(&rdev->dev);
return regulator;
}
ret = regulator_resolve_supply(rdev);
if (ret < 0) {
regulator = ERR_PTR(ret);
put_device(&rdev->dev);
return regulator;
}
if (!try_module_get(rdev->owner)) {
regulator = ERR_PTR(-EPROBE_DEFER);
put_device(&rdev->dev);
return regulator;
}
regulator_lock(rdev);
regulator = create_regulator(rdev, dev, id);
regulator_unlock(rdev);
if (regulator == NULL) {
regulator = ERR_PTR(-ENOMEM);
module_put(rdev->owner);
put_device(&rdev->dev);
return regulator;
}
rdev->open_count++;
if (get_type == EXCLUSIVE_GET) {
rdev->exclusive = 1;
ret = _regulator_is_enabled(rdev);
if (ret > 0) {
rdev->use_count = 1;
regulator->enable_count = 1;
} else {
rdev->use_count = 0;
regulator->enable_count = 0;
}
}
link = device_link_add(dev, &rdev->dev, DL_FLAG_STATELESS);
if (!IS_ERR_OR_NULL(link))
regulator->device_link = true;
return regulator;
}
/**
* regulator_get - lookup and obtain a reference to a regulator.
* @dev: device for regulator "consumer"
* @id: Supply name or regulator ID.
*
* Returns a struct regulator corresponding to the regulator producer,
* or IS_ERR() condition containing errno.
*
* Use of supply names configured via set_consumer_device_supply() is
* strongly encouraged. It is recommended that the supply name used
* should match the name used for the supply and/or the relevant
* device pins in the datasheet.
*/
struct regulator *regulator_get(struct device *dev, const char *id)
{
return _regulator_get(dev, id, NORMAL_GET);
}
EXPORT_SYMBOL_GPL(regulator_get);
/**
* regulator_get_exclusive - obtain exclusive access to a regulator.
* @dev: device for regulator "consumer"
* @id: Supply name or regulator ID.
*
* Returns a struct regulator corresponding to the regulator producer,
* or IS_ERR() condition containing errno. Other consumers will be
* unable to obtain this regulator while this reference is held and the
* use count for the regulator will be initialised to reflect the current
* state of the regulator.
*
* This is intended for use by consumers which cannot tolerate shared
* use of the regulator such as those which need to force the
* regulator off for correct operation of the hardware they are
* controlling.
*
* Use of supply names configured via set_consumer_device_supply() is
* strongly encouraged. It is recommended that the supply name used
* should match the name used for the supply and/or the relevant
* device pins in the datasheet.
*/
struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
{
return _regulator_get(dev, id, EXCLUSIVE_GET);
}
EXPORT_SYMBOL_GPL(regulator_get_exclusive);
/**
* regulator_get_optional - obtain optional access to a regulator.
* @dev: device for regulator "consumer"
* @id: Supply name or regulator ID.
*
* Returns a struct regulator corresponding to the regulator producer,
* or IS_ERR() condition containing errno.
*
* This is intended for use by consumers for devices which can have
* some supplies unconnected in normal use, such as some MMC devices.
* It can allow the regulator core to provide stub supplies for other
* supplies requested using normal regulator_get() calls without
* disrupting the operation of drivers that can handle absent
* supplies.
*
* Use of supply names configured via set_consumer_device_supply() is
* strongly encouraged. It is recommended that the supply name used
* should match the name used for the supply and/or the relevant
* device pins in the datasheet.
*/
struct regulator *regulator_get_optional(struct device *dev, const char *id)
{
return _regulator_get(dev, id, OPTIONAL_GET);
}
EXPORT_SYMBOL_GPL(regulator_get_optional);
static void destroy_regulator(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
debugfs_remove_recursive(regulator->debugfs);
if (regulator->dev) {
if (regulator->device_link)
device_link_remove(regulator->dev, &rdev->dev);
/* remove any sysfs entries */
sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
}
regulator_lock(rdev);
list_del(®ulator->list);
rdev->open_count--;
rdev->exclusive = 0;
regulator_unlock(rdev);
kfree_const(regulator->supply_name);
kfree(regulator);
}
/* regulator_list_mutex lock held by regulator_put() */
static void _regulator_put(struct regulator *regulator)
{
struct regulator_dev *rdev;
if (IS_ERR_OR_NULL(regulator))
return;
lockdep_assert_held_once(®ulator_list_mutex);
/* Docs say you must disable before calling regulator_put() */
WARN_ON(regulator->enable_count);
rdev = regulator->rdev;
destroy_regulator(regulator);
module_put(rdev->owner);
put_device(&rdev->dev);
}
/**
* regulator_put - "free" the regulator source
* @regulator: regulator source
*
* Note: drivers must ensure that all regulator_enable calls made on this
* regulator source are balanced by regulator_disable calls prior to calling
* this function.
*/
void regulator_put(struct regulator *regulator)
{
mutex_lock(®ulator_list_mutex);
_regulator_put(regulator);
mutex_unlock(®ulator_list_mutex);
}
EXPORT_SYMBOL_GPL(regulator_put);
/**
* regulator_register_supply_alias - Provide device alias for supply lookup
*
* @dev: device that will be given as the regulator "consumer"
* @id: Supply name or regulator ID
* @alias_dev: device that should be used to lookup the supply
* @alias_id: Supply name or regulator ID that should be used to lookup the
* supply
*
* All lookups for id on dev will instead be conducted for alias_id on
* alias_dev.
*/
int regulator_register_supply_alias(struct device *dev, const char *id,
struct device *alias_dev,
const char *alias_id)
{
struct regulator_supply_alias *map;
map = regulator_find_supply_alias(dev, id);
if (map)
return -EEXIST;
map = kzalloc(sizeof(struct regulator_supply_alias), GFP_KERNEL);
if (!map)
return -ENOMEM;
map->src_dev = dev;
map->src_supply = id;
map->alias_dev = alias_dev;
map->alias_supply = alias_id;
list_add(&map->list, ®ulator_supply_alias_list);
pr_info("Adding alias for supply %s,%s -> %s,%s\n",
id, dev_name(dev), alias_id, dev_name(alias_dev));
return 0;
}
EXPORT_SYMBOL_GPL(regulator_register_supply_alias);
/**
* regulator_unregister_supply_alias - Remove device alias
*
* @dev: device that will be given as the regulator "consumer"
* @id: Supply name or regulator ID
*
* Remove a lookup alias if one exists for id on dev.
*/
void regulator_unregister_supply_alias(struct device *dev, const char *id)
{
struct regulator_supply_alias *map;
map = regulator_find_supply_alias(dev, id);
if (map) {
list_del(&map->list);
kfree(map);
}
}
EXPORT_SYMBOL_GPL(regulator_unregister_supply_alias);
/**
* regulator_bulk_register_supply_alias - register multiple aliases
*
* @dev: device that will be given as the regulator "consumer"
* @id: List of supply names or regulator IDs
* @alias_dev: device that should be used to lookup the supply
* @alias_id: List of supply names or regulator IDs that should be used to
* lookup the supply
* @num_id: Number of aliases to register
*
* @return 0 on success, an errno on failure.
*
* This helper function allows drivers to register several supply
* aliases in one operation. If any of the aliases cannot be
* registered any aliases that were registered will be removed
* before returning to the caller.
*/
int regulator_bulk_register_supply_alias(struct device *dev,
const char *const *id,
struct device *alias_dev,
const char *const *alias_id,
int num_id)
{
int i;
int ret;
for (i = 0; i < num_id; ++i) {
ret = regulator_register_supply_alias(dev, id[i], alias_dev,
alias_id[i]);
if (ret < 0)
goto err;
}
return 0;
err:
dev_err(dev,
"Failed to create supply alias %s,%s -> %s,%s\n",
id[i], dev_name(dev), alias_id[i], dev_name(alias_dev));
while (--i >= 0)
regulator_unregister_supply_alias(dev, id[i]);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_bulk_register_supply_alias);
/**
* regulator_bulk_unregister_supply_alias - unregister multiple aliases
*
* @dev: device that will be given as the regulator "consumer"
* @id: List of supply names or regulator IDs
* @num_id: Number of aliases to unregister
*
* This helper function allows drivers to unregister several supply
* aliases in one operation.
*/
void regulator_bulk_unregister_supply_alias(struct device *dev,
const char *const *id,
int num_id)
{
int i;
for (i = 0; i < num_id; ++i)
regulator_unregister_supply_alias(dev, id[i]);
}
EXPORT_SYMBOL_GPL(regulator_bulk_unregister_supply_alias);
/* Manage enable GPIO list. Same GPIO pin can be shared among regulators */
static int regulator_ena_gpio_request(struct regulator_dev *rdev,
const struct regulator_config *config)
{
struct regulator_enable_gpio *pin, *new_pin;
struct gpio_desc *gpiod;
gpiod = config->ena_gpiod;
new_pin = kzalloc(sizeof(*new_pin), GFP_KERNEL);
mutex_lock(®ulator_list_mutex);
list_for_each_entry(pin, ®ulator_ena_gpio_list, list) {
if (pin->gpiod == gpiod) {
rdev_dbg(rdev, "GPIO is already used\n");
goto update_ena_gpio_to_rdev;
}
}
if (new_pin == NULL) {
mutex_unlock(®ulator_list_mutex);
return -ENOMEM;
}
pin = new_pin;
new_pin = NULL;
pin->gpiod = gpiod;
list_add(&pin->list, ®ulator_ena_gpio_list);
update_ena_gpio_to_rdev:
pin->request_count++;
rdev->ena_pin = pin;
mutex_unlock(®ulator_list_mutex);
kfree(new_pin);
return 0;
}
static void regulator_ena_gpio_free(struct regulator_dev *rdev)
{
struct regulator_enable_gpio *pin, *n;
if (!rdev->ena_pin)
return;
/* Free the GPIO only in case of no use */
list_for_each_entry_safe(pin, n, ®ulator_ena_gpio_list, list) {
if (pin != rdev->ena_pin)
continue;
if (--pin->request_count)
break;
gpiod_put(pin->gpiod);
list_del(&pin->list);
kfree(pin);
break;
}
rdev->ena_pin = NULL;
}
/**
* regulator_ena_gpio_ctrl - balance enable_count of each GPIO and actual GPIO pin control
* @rdev: regulator_dev structure
* @enable: enable GPIO at initial use?
*
* GPIO is enabled in case of initial use. (enable_count is 0)
* GPIO is disabled when it is not shared any more. (enable_count <= 1)
*/
static int regulator_ena_gpio_ctrl(struct regulator_dev *rdev, bool enable)
{
struct regulator_enable_gpio *pin = rdev->ena_pin;
if (!pin)
return -EINVAL;
if (enable) {
/* Enable GPIO at initial use */
if (pin->enable_count == 0)
gpiod_set_value_cansleep(pin->gpiod, 1);
pin->enable_count++;
} else {
if (pin->enable_count > 1) {
pin->enable_count--;
return 0;
}
/* Disable GPIO if not used */
if (pin->enable_count <= 1) {
gpiod_set_value_cansleep(pin->gpiod, 0);
pin->enable_count = 0;
}
}
return 0;
}
/**
* _regulator_delay_helper - a delay helper function
* @delay: time to delay in microseconds
*
* Delay for the requested amount of time as per the guidelines in:
*
* Documentation/timers/timers-howto.rst
*
* The assumption here is that these regulator operations will never used in
* atomic context and therefore sleeping functions can be used.
*/
static void _regulator_delay_helper(unsigned int delay)
{
unsigned int ms = delay / 1000;
unsigned int us = delay % 1000;
if (ms > 0) {
/*
* For small enough values, handle super-millisecond
* delays in the usleep_range() call below.
*/
if (ms < 20)
us += ms * 1000;
else
msleep(ms);
}
/*
* Give the scheduler some room to coalesce with any other
* wakeup sources. For delays shorter than 10 us, don't even
* bother setting up high-resolution timers and just busy-
* loop.
*/
if (us >= 10)
usleep_range(us, us + 100);
else
udelay(us);
}
/**
* _regulator_check_status_enabled
*
* A helper function to check if the regulator status can be interpreted
* as 'regulator is enabled'.
* @rdev: the regulator device to check
*
* Return:
* * 1 - if status shows regulator is in enabled state
* * 0 - if not enabled state
* * Error Value - as received from ops->get_status()
*/
static inline int _regulator_check_status_enabled(struct regulator_dev *rdev)
{
int ret = rdev->desc->ops->get_status(rdev);
if (ret < 0) {
rdev_info(rdev, "get_status returned error: %d\n", ret);
return ret;
}
switch (ret) {
case REGULATOR_STATUS_OFF:
case REGULATOR_STATUS_ERROR:
case REGULATOR_STATUS_UNDEFINED:
return 0;
default:
return 1;
}
}
static int _regulator_do_enable(struct regulator_dev *rdev)
{
int ret, delay;
/* Query before enabling in case configuration dependent. */
ret = _regulator_get_enable_time(rdev);
if (ret >= 0) {
delay = ret;
} else {
rdev_warn(rdev, "enable_time() failed: %pe\n", ERR_PTR(ret));
delay = 0;
}
trace_regulator_enable(rdev_get_name(rdev));
if (rdev->desc->off_on_delay) {
/* if needed, keep a distance of off_on_delay from last time
* this regulator was disabled.
*/
ktime_t end = ktime_add_us(rdev->last_off, rdev->desc->off_on_delay);
s64 remaining = ktime_us_delta(end, ktime_get_boottime());
if (remaining > 0)
_regulator_delay_helper(remaining);
}
if (rdev->ena_pin) {
if (!rdev->ena_gpio_state) {
ret = regulator_ena_gpio_ctrl(rdev, true);
if (ret < 0)
return ret;
rdev->ena_gpio_state = 1;
}
} else if (rdev->desc->ops->enable) {
ret = rdev->desc->ops->enable(rdev);
if (ret < 0)
return ret;
} else {
return -EINVAL;
}
/* Allow the regulator to ramp; it would be useful to extend
* this for bulk operations so that the regulators can ramp
* together.
*/
trace_regulator_enable_delay(rdev_get_name(rdev));
/* If poll_enabled_time is set, poll upto the delay calculated
* above, delaying poll_enabled_time uS to check if the regulator
* actually got enabled.
* If the regulator isn't enabled after our delay helper has expired,
* return -ETIMEDOUT.
*/
if (rdev->desc->poll_enabled_time) {
int time_remaining = delay;
while (time_remaining > 0) {
_regulator_delay_helper(rdev->desc->poll_enabled_time);
if (rdev->desc->ops->get_status) {
ret = _regulator_check_status_enabled(rdev);
if (ret < 0)
return ret;
else if (ret)
break;
} else if (rdev->desc->ops->is_enabled(rdev))
break;
time_remaining -= rdev->desc->poll_enabled_time;
}
if (time_remaining <= 0) {
rdev_err(rdev, "Enabled check timed out\n");
return -ETIMEDOUT;
}
} else {
_regulator_delay_helper(delay);
}
trace_regulator_enable_complete(rdev_get_name(rdev));
return 0;
}
/**
* _regulator_handle_consumer_enable - handle that a consumer enabled
* @regulator: regulator source
*
* Some things on a regulator consumer (like the contribution towards total
* load on the regulator) only have an effect when the consumer wants the
* regulator enabled. Explained in example with two consumers of the same
* regulator:
* consumer A: set_load(100); => total load = 0
* consumer A: regulator_enable(); => total load = 100
* consumer B: set_load(1000); => total load = 100
* consumer B: regulator_enable(); => total load = 1100
* consumer A: regulator_disable(); => total_load = 1000
*
* This function (together with _regulator_handle_consumer_disable) is
* responsible for keeping track of the refcount for a given regulator consumer
* and applying / unapplying these things.
*
* Returns 0 upon no error; -error upon error.
*/
static int _regulator_handle_consumer_enable(struct regulator *regulator)
{
int ret;
struct regulator_dev *rdev = regulator->rdev;
lockdep_assert_held_once(&rdev->mutex.base);
regulator->enable_count++;
if (regulator->uA_load && regulator->enable_count == 1) {
ret = drms_uA_update(rdev);
if (ret)
regulator->enable_count--;
return ret;
}
return 0;
}
/**
* _regulator_handle_consumer_disable - handle that a consumer disabled
* @regulator: regulator source
*
* The opposite of _regulator_handle_consumer_enable().
*
* Returns 0 upon no error; -error upon error.
*/
static int _regulator_handle_consumer_disable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
lockdep_assert_held_once(&rdev->mutex.base);
if (!regulator->enable_count) {
rdev_err(rdev, "Underflow of regulator enable count\n");
return -EINVAL;
}
regulator->enable_count--;
if (regulator->uA_load && regulator->enable_count == 0)
return drms_uA_update(rdev);
return 0;
}
/* locks held by regulator_enable() */
static int _regulator_enable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
int ret;
lockdep_assert_held_once(&rdev->mutex.base);
if (rdev->use_count == 0 && rdev->supply) {
ret = _regulator_enable(rdev->supply);
if (ret < 0)
return ret;
}
/* balance only if there are regulators coupled */
if (rdev->coupling_desc.n_coupled > 1) {
ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
if (ret < 0)
goto err_disable_supply;
}
ret = _regulator_handle_consumer_enable(regulator);
if (ret < 0)
goto err_disable_supply;
if (rdev->use_count == 0) {
/*
* The regulator may already be enabled if it's not switchable
* or was left on
*/
ret = _regulator_is_enabled(rdev);
if (ret == -EINVAL || ret == 0) {
if (!regulator_ops_is_valid(rdev,
REGULATOR_CHANGE_STATUS)) {
ret = -EPERM;
goto err_consumer_disable;
}
ret = _regulator_do_enable(rdev);
if (ret < 0)
goto err_consumer_disable;
_notifier_call_chain(rdev, REGULATOR_EVENT_ENABLE,
NULL);
} else if (ret < 0) {
rdev_err(rdev, "is_enabled() failed: %pe\n", ERR_PTR(ret));
goto err_consumer_disable;
}
/* Fallthrough on positive return values - already enabled */
}
rdev->use_count++;
return 0;
err_consumer_disable:
_regulator_handle_consumer_disable(regulator);
err_disable_supply:
if (rdev->use_count == 0 && rdev->supply)
_regulator_disable(rdev->supply);
return ret;
}
/**
* regulator_enable - enable regulator output
* @regulator: regulator source
*
* Request that the regulator be enabled with the regulator output at
* the predefined voltage or current value. Calls to regulator_enable()
* must be balanced with calls to regulator_disable().
*
* NOTE: the output value can be set by other drivers, boot loader or may be
* hardwired in the regulator.
*/
int regulator_enable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
struct ww_acquire_ctx ww_ctx;
int ret;
regulator_lock_dependent(rdev, &ww_ctx);
ret = _regulator_enable(regulator);
regulator_unlock_dependent(rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_enable);
static int _regulator_do_disable(struct regulator_dev *rdev)
{
int ret;
trace_regulator_disable(rdev_get_name(rdev));
if (rdev->ena_pin) {
if (rdev->ena_gpio_state) {
ret = regulator_ena_gpio_ctrl(rdev, false);
if (ret < 0)
return ret;
rdev->ena_gpio_state = 0;
}
} else if (rdev->desc->ops->disable) {
ret = rdev->desc->ops->disable(rdev);
if (ret != 0)
return ret;
}
if (rdev->desc->off_on_delay)
rdev->last_off = ktime_get_boottime();
trace_regulator_disable_complete(rdev_get_name(rdev));
return 0;
}
/* locks held by regulator_disable() */
static int _regulator_disable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
int ret = 0;
lockdep_assert_held_once(&rdev->mutex.base);
if (WARN(rdev->use_count <= 0,
"unbalanced disables for %s\n", rdev_get_name(rdev)))
return -EIO;
/* are we the last user and permitted to disable ? */
if (rdev->use_count == 1 &&
(rdev->constraints && !rdev->constraints->always_on)) {
/* we are last user */
if (regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS)) {
ret = _notifier_call_chain(rdev,
REGULATOR_EVENT_PRE_DISABLE,
NULL);
if (ret & NOTIFY_STOP_MASK)
return -EINVAL;
ret = _regulator_do_disable(rdev);
if (ret < 0) {
rdev_err(rdev, "failed to disable: %pe\n", ERR_PTR(ret));
_notifier_call_chain(rdev,
REGULATOR_EVENT_ABORT_DISABLE,
NULL);
return ret;
}
_notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
NULL);
}
rdev->use_count = 0;
} else if (rdev->use_count > 1) {
rdev->use_count--;
}
if (ret == 0)
ret = _regulator_handle_consumer_disable(regulator);
if (ret == 0 && rdev->coupling_desc.n_coupled > 1)
ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
if (ret == 0 && rdev->use_count == 0 && rdev->supply)
ret = _regulator_disable(rdev->supply);
return ret;
}
/**
* regulator_disable - disable regulator output
* @regulator: regulator source
*
* Disable the regulator output voltage or current. Calls to
* regulator_enable() must be balanced with calls to
* regulator_disable().
*
* NOTE: this will only disable the regulator output if no other consumer
* devices have it enabled, the regulator device supports disabling and
* machine constraints permit this operation.
*/
int regulator_disable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
struct ww_acquire_ctx ww_ctx;
int ret;
regulator_lock_dependent(rdev, &ww_ctx);
ret = _regulator_disable(regulator);
regulator_unlock_dependent(rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_disable);
/* locks held by regulator_force_disable() */
static int _regulator_force_disable(struct regulator_dev *rdev)
{
int ret = 0;
lockdep_assert_held_once(&rdev->mutex.base);
ret = _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE |
REGULATOR_EVENT_PRE_DISABLE, NULL);
if (ret & NOTIFY_STOP_MASK)
return -EINVAL;
ret = _regulator_do_disable(rdev);
if (ret < 0) {
rdev_err(rdev, "failed to force disable: %pe\n", ERR_PTR(ret));
_notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE |
REGULATOR_EVENT_ABORT_DISABLE, NULL);
return ret;
}
_notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE |
REGULATOR_EVENT_DISABLE, NULL);
return 0;
}
/**
* regulator_force_disable - force disable regulator output
* @regulator: regulator source
*
* Forcibly disable the regulator output voltage or current.
* NOTE: this *will* disable the regulator output even if other consumer
* devices have it enabled. This should be used for situations when device
* damage will likely occur if the regulator is not disabled (e.g. over temp).
*/
int regulator_force_disable(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
struct ww_acquire_ctx ww_ctx;
int ret;
regulator_lock_dependent(rdev, &ww_ctx);
ret = _regulator_force_disable(regulator->rdev);
if (rdev->coupling_desc.n_coupled > 1)
regulator_balance_voltage(rdev, PM_SUSPEND_ON);
if (regulator->uA_load) {
regulator->uA_load = 0;
ret = drms_uA_update(rdev);
}
if (rdev->use_count != 0 && rdev->supply)
_regulator_disable(rdev->supply);
regulator_unlock_dependent(rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_force_disable);
static void regulator_disable_work(struct work_struct *work)
{
struct regulator_dev *rdev = container_of(work, struct regulator_dev,
disable_work.work);
struct ww_acquire_ctx ww_ctx;
int count, i, ret;
struct regulator *regulator;
int total_count = 0;
regulator_lock_dependent(rdev, &ww_ctx);
/*
* Workqueue functions queue the new work instance while the previous
* work instance is being processed. Cancel the queued work instance
* as the work instance under processing does the job of the queued
* work instance.
*/
cancel_delayed_work(&rdev->disable_work);
list_for_each_entry(regulator, &rdev->consumer_list, list) {
count = regulator->deferred_disables;
if (!count)
continue;
total_count += count;
regulator->deferred_disables = 0;
for (i = 0; i < count; i++) {
ret = _regulator_disable(regulator);
if (ret != 0)
rdev_err(rdev, "Deferred disable failed: %pe\n",
ERR_PTR(ret));
}
}
WARN_ON(!total_count);
if (rdev->coupling_desc.n_coupled > 1)
regulator_balance_voltage(rdev, PM_SUSPEND_ON);
regulator_unlock_dependent(rdev, &ww_ctx);
}
/**
* regulator_disable_deferred - disable regulator output with delay
* @regulator: regulator source
* @ms: milliseconds until the regulator is disabled
*
* Execute regulator_disable() on the regulator after a delay. This
* is intended for use with devices that require some time to quiesce.
*
* NOTE: this will only disable the regulator output if no other consumer
* devices have it enabled, the regulator device supports disabling and
* machine constraints permit this operation.
*/
int regulator_disable_deferred(struct regulator *regulator, int ms)
{
struct regulator_dev *rdev = regulator->rdev;
if (!ms)
return regulator_disable(regulator);
regulator_lock(rdev);
regulator->deferred_disables++;
mod_delayed_work(system_power_efficient_wq, &rdev->disable_work,
msecs_to_jiffies(ms));
regulator_unlock(rdev);
return 0;
}
EXPORT_SYMBOL_GPL(regulator_disable_deferred);
static int _regulator_is_enabled(struct regulator_dev *rdev)
{
/* A GPIO control always takes precedence */
if (rdev->ena_pin)
return rdev->ena_gpio_state;
/* If we don't know then assume that the regulator is always on */
if (!rdev->desc->ops->is_enabled)
return 1;
return rdev->desc->ops->is_enabled(rdev);
}
static int _regulator_list_voltage(struct regulator_dev *rdev,
unsigned selector, int lock)
{
const struct regulator_ops *ops = rdev->desc->ops;
int ret;
if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector)
return rdev->desc->fixed_uV;
if (ops->list_voltage) {
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector < rdev->desc->linear_min_sel)
return 0;
if (lock)
regulator_lock(rdev);
ret = ops->list_voltage(rdev, selector);
if (lock)
regulator_unlock(rdev);
} else if (rdev->is_switch && rdev->supply) {
ret = _regulator_list_voltage(rdev->supply->rdev,
selector, lock);
} else {
return -EINVAL;
}
if (ret > 0) {
if (ret < rdev->constraints->min_uV)
ret = 0;
else if (ret > rdev->constraints->max_uV)
ret = 0;
}
return ret;
}
/**
* regulator_is_enabled - is the regulator output enabled
* @regulator: regulator source
*
* Returns positive if the regulator driver backing the source/client
* has requested that the device be enabled, zero if it hasn't, else a
* negative errno code.
*
* Note that the device backing this regulator handle can have multiple
* users, so it might be enabled even if regulator_enable() was never
* called for this particular source.
*/
int regulator_is_enabled(struct regulator *regulator)
{
int ret;
if (regulator->always_on)
return 1;
regulator_lock(regulator->rdev);
ret = _regulator_is_enabled(regulator->rdev);
regulator_unlock(regulator->rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_is_enabled);
/**
* regulator_count_voltages - count regulator_list_voltage() selectors
* @regulator: regulator source
*
* Returns number of selectors, or negative errno. Selectors are
* numbered starting at zero, and typically correspond to bitfields
* in hardware registers.
*/
int regulator_count_voltages(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
if (rdev->desc->n_voltages)
return rdev->desc->n_voltages;
if (!rdev->is_switch || !rdev->supply)
return -EINVAL;
return regulator_count_voltages(rdev->supply);
}
EXPORT_SYMBOL_GPL(regulator_count_voltages);
/**
* regulator_list_voltage - enumerate supported voltages
* @regulator: regulator source
* @selector: identify voltage to list
* Context: can sleep
*
* Returns a voltage that can be passed to @regulator_set_voltage(),
* zero if this selector code can't be used on this system, or a
* negative errno.
*/
int regulator_list_voltage(struct regulator *regulator, unsigned selector)
{
return _regulator_list_voltage(regulator->rdev, selector, 1);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage);
/**
* regulator_get_regmap - get the regulator's register map
* @regulator: regulator source
*
* Returns the register map for the given regulator, or an ERR_PTR value
* if the regulator doesn't use regmap.
*/
struct regmap *regulator_get_regmap(struct regulator *regulator)
{
struct regmap *map = regulator->rdev->regmap;
return map ? map : ERR_PTR(-EOPNOTSUPP);
}
/**
* regulator_get_hardware_vsel_register - get the HW voltage selector register
* @regulator: regulator source
* @vsel_reg: voltage selector register, output parameter
* @vsel_mask: mask for voltage selector bitfield, output parameter
*
* Returns the hardware register offset and bitmask used for setting the
* regulator voltage. This might be useful when configuring voltage-scaling
* hardware or firmware that can make I2C requests behind the kernel's back,
* for example.
*
* On success, the output parameters @vsel_reg and @vsel_mask are filled in
* and 0 is returned, otherwise a negative errno is returned.
*/
int regulator_get_hardware_vsel_register(struct regulator *regulator,
unsigned *vsel_reg,
unsigned *vsel_mask)
{
struct regulator_dev *rdev = regulator->rdev;
const struct regulator_ops *ops = rdev->desc->ops;
if (ops->set_voltage_sel != regulator_set_voltage_sel_regmap)
return -EOPNOTSUPP;
*vsel_reg = rdev->desc->vsel_reg;
*vsel_mask = rdev->desc->vsel_mask;
return 0;
}
EXPORT_SYMBOL_GPL(regulator_get_hardware_vsel_register);
/**
* regulator_list_hardware_vsel - get the HW-specific register value for a selector
* @regulator: regulator source
* @selector: identify voltage to list
*
* Converts the selector to a hardware-specific voltage selector that can be
* directly written to the regulator registers. The address of the voltage
* register can be determined by calling @regulator_get_hardware_vsel_register.
*
* On error a negative errno is returned.
*/
int regulator_list_hardware_vsel(struct regulator *regulator,
unsigned selector)
{
struct regulator_dev *rdev = regulator->rdev;
const struct regulator_ops *ops = rdev->desc->ops;
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector < rdev->desc->linear_min_sel)
return 0;
if (ops->set_voltage_sel != regulator_set_voltage_sel_regmap)
return -EOPNOTSUPP;
return selector;
}
EXPORT_SYMBOL_GPL(regulator_list_hardware_vsel);
/**
* regulator_get_linear_step - return the voltage step size between VSEL values
* @regulator: regulator source
*
* Returns the voltage step size between VSEL values for linear
* regulators, or return 0 if the regulator isn't a linear regulator.
*/
unsigned int regulator_get_linear_step(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
return rdev->desc->uV_step;
}
EXPORT_SYMBOL_GPL(regulator_get_linear_step);
/**
* regulator_is_supported_voltage - check if a voltage range can be supported
*
* @regulator: Regulator to check.
* @min_uV: Minimum required voltage in uV.
* @max_uV: Maximum required voltage in uV.
*
* Returns a boolean.
*/
int regulator_is_supported_voltage(struct regulator *regulator,
int min_uV, int max_uV)
{
struct regulator_dev *rdev = regulator->rdev;
int i, voltages, ret;
/* If we can't change voltage check the current voltage */
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
ret = regulator_get_voltage(regulator);
if (ret >= 0)
return min_uV <= ret && ret <= max_uV;
else
return ret;
}
/* Any voltage within constrains range is fine? */
if (rdev->desc->continuous_voltage_range)
return min_uV >= rdev->constraints->min_uV &&
max_uV <= rdev->constraints->max_uV;
ret = regulator_count_voltages(regulator);
if (ret < 0)
return 0;
voltages = ret;
for (i = 0; i < voltages; i++) {
ret = regulator_list_voltage(regulator, i);
if (ret >= min_uV && ret <= max_uV)
return 1;
}
return 0;
}
EXPORT_SYMBOL_GPL(regulator_is_supported_voltage);
static int regulator_map_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV)
{
const struct regulator_desc *desc = rdev->desc;
if (desc->ops->map_voltage)
return desc->ops->map_voltage(rdev, min_uV, max_uV);
if (desc->ops->list_voltage == regulator_list_voltage_linear)
return regulator_map_voltage_linear(rdev, min_uV, max_uV);
if (desc->ops->list_voltage == regulator_list_voltage_linear_range)
return regulator_map_voltage_linear_range(rdev, min_uV, max_uV);
if (desc->ops->list_voltage ==
regulator_list_voltage_pickable_linear_range)
return regulator_map_voltage_pickable_linear_range(rdev,
min_uV, max_uV);
return regulator_map_voltage_iterate(rdev, min_uV, max_uV);
}
static int _regulator_call_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV,
unsigned *selector)
{
struct pre_voltage_change_data data;
int ret;
data.old_uV = regulator_get_voltage_rdev(rdev);
data.min_uV = min_uV;
data.max_uV = max_uV;
ret = _notifier_call_chain(rdev, REGULATOR_EVENT_PRE_VOLTAGE_CHANGE,
&data);
if (ret & NOTIFY_STOP_MASK)
return -EINVAL;
ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV, selector);
if (ret >= 0)
return ret;
_notifier_call_chain(rdev, REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE,
(void *)data.old_uV);
return ret;
}
static int _regulator_call_set_voltage_sel(struct regulator_dev *rdev,
int uV, unsigned selector)
{
struct pre_voltage_change_data data;
int ret;
data.old_uV = regulator_get_voltage_rdev(rdev);
data.min_uV = uV;
data.max_uV = uV;
ret = _notifier_call_chain(rdev, REGULATOR_EVENT_PRE_VOLTAGE_CHANGE,
&data);
if (ret & NOTIFY_STOP_MASK)
return -EINVAL;
ret = rdev->desc->ops->set_voltage_sel(rdev, selector);
if (ret >= 0)
return ret;
_notifier_call_chain(rdev, REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE,
(void *)data.old_uV);
return ret;
}
static int _regulator_set_voltage_sel_step(struct regulator_dev *rdev,
int uV, int new_selector)
{
const struct regulator_ops *ops = rdev->desc->ops;
int diff, old_sel, curr_sel, ret;
/* Stepping is only needed if the regulator is enabled. */
if (!_regulator_is_enabled(rdev))
goto final_set;
if (!ops->get_voltage_sel)
return -EINVAL;
old_sel = ops->get_voltage_sel(rdev);
if (old_sel < 0)
return old_sel;
diff = new_selector - old_sel;
if (diff == 0)
return 0; /* No change needed. */
if (diff > 0) {
/* Stepping up. */
for (curr_sel = old_sel + rdev->desc->vsel_step;
curr_sel < new_selector;
curr_sel += rdev->desc->vsel_step) {
/*
* Call the callback directly instead of using
* _regulator_call_set_voltage_sel() as we don't
* want to notify anyone yet. Same in the branch
* below.
*/
ret = ops->set_voltage_sel(rdev, curr_sel);
if (ret)
goto try_revert;
}
} else {
/* Stepping down. */
for (curr_sel = old_sel - rdev->desc->vsel_step;
curr_sel > new_selector;
curr_sel -= rdev->desc->vsel_step) {
ret = ops->set_voltage_sel(rdev, curr_sel);
if (ret)
goto try_revert;
}
}
final_set:
/* The final selector will trigger the notifiers. */
return _regulator_call_set_voltage_sel(rdev, uV, new_selector);
try_revert:
/*
* At least try to return to the previous voltage if setting a new
* one failed.
*/
(void)ops->set_voltage_sel(rdev, old_sel);
return ret;
}
static int _regulator_set_voltage_time(struct regulator_dev *rdev,
int old_uV, int new_uV)
{
unsigned int ramp_delay = 0;
if (rdev->constraints->ramp_delay)
ramp_delay = rdev->constraints->ramp_delay;
else if (rdev->desc->ramp_delay)
ramp_delay = rdev->desc->ramp_delay;
else if (rdev->constraints->settling_time)
return rdev->constraints->settling_time;
else if (rdev->constraints->settling_time_up &&
(new_uV > old_uV))
return rdev->constraints->settling_time_up;
else if (rdev->constraints->settling_time_down &&
(new_uV < old_uV))
return rdev->constraints->settling_time_down;
if (ramp_delay == 0)
return 0;
return DIV_ROUND_UP(abs(new_uV - old_uV), ramp_delay);
}
static int _regulator_do_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
int ret;
int delay = 0;
int best_val = 0;
unsigned int selector;
int old_selector = -1;
const struct regulator_ops *ops = rdev->desc->ops;
int old_uV = regulator_get_voltage_rdev(rdev);
trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV);
min_uV += rdev->constraints->uV_offset;
max_uV += rdev->constraints->uV_offset;
/*
* If we can't obtain the old selector there is not enough
* info to call set_voltage_time_sel().
*/
if (_regulator_is_enabled(rdev) &&
ops->set_voltage_time_sel && ops->get_voltage_sel) {
old_selector = ops->get_voltage_sel(rdev);
if (old_selector < 0)
return old_selector;
}
if (ops->set_voltage) {
ret = _regulator_call_set_voltage(rdev, min_uV, max_uV,
&selector);
if (ret >= 0) {
if (ops->list_voltage)
best_val = ops->list_voltage(rdev,
selector);
else
best_val = regulator_get_voltage_rdev(rdev);
}
} else if (ops->set_voltage_sel) {
ret = regulator_map_voltage(rdev, min_uV, max_uV);
if (ret >= 0) {
best_val = ops->list_voltage(rdev, ret);
if (min_uV <= best_val && max_uV >= best_val) {
selector = ret;
if (old_selector == selector)
ret = 0;
else if (rdev->desc->vsel_step)
ret = _regulator_set_voltage_sel_step(
rdev, best_val, selector);
else
ret = _regulator_call_set_voltage_sel(
rdev, best_val, selector);
} else {
ret = -EINVAL;
}
}
} else {
ret = -EINVAL;
}
if (ret)
goto out;
if (ops->set_voltage_time_sel) {
/*
* Call set_voltage_time_sel if successfully obtained
* old_selector
*/
if (old_selector >= 0 && old_selector != selector)
delay = ops->set_voltage_time_sel(rdev, old_selector,
selector);
} else {
if (old_uV != best_val) {
if (ops->set_voltage_time)
delay = ops->set_voltage_time(rdev, old_uV,
best_val);
else
delay = _regulator_set_voltage_time(rdev,
old_uV,
best_val);
}
}
if (delay < 0) {
rdev_warn(rdev, "failed to get delay: %pe\n", ERR_PTR(delay));
delay = 0;
}
/* Insert any necessary delays */
_regulator_delay_helper(delay);
if (best_val >= 0) {
unsigned long data = best_val;
_notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
(void *)data);
}
out:
trace_regulator_set_voltage_complete(rdev_get_name(rdev), best_val);
return ret;
}
static int _regulator_do_set_suspend_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV, suspend_state_t state)
{
struct regulator_state *rstate;
int uV, sel;
rstate = regulator_get_suspend_state(rdev, state);
if (rstate == NULL)
return -EINVAL;
if (min_uV < rstate->min_uV)
min_uV = rstate->min_uV;
if (max_uV > rstate->max_uV)
max_uV = rstate->max_uV;
sel = regulator_map_voltage(rdev, min_uV, max_uV);
if (sel < 0)
return sel;
uV = rdev->desc->ops->list_voltage(rdev, sel);
if (uV >= min_uV && uV <= max_uV)
rstate->uV = uV;
return 0;
}
static int regulator_set_voltage_unlocked(struct regulator *regulator,
int min_uV, int max_uV,
suspend_state_t state)
{
struct regulator_dev *rdev = regulator->rdev;
struct regulator_voltage *voltage = ®ulator->voltage[state];
int ret = 0;
int old_min_uV, old_max_uV;
int current_uV;
/* If we're setting the same range as last time the change
* should be a noop (some cpufreq implementations use the same
* voltage for multiple frequencies, for example).
*/
if (voltage->min_uV == min_uV && voltage->max_uV == max_uV)
goto out;
/* If we're trying to set a range that overlaps the current voltage,
* return successfully even though the regulator does not support
* changing the voltage.
*/
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE)) {
current_uV = regulator_get_voltage_rdev(rdev);
if (min_uV <= current_uV && current_uV <= max_uV) {
voltage->min_uV = min_uV;
voltage->max_uV = max_uV;
goto out;
}
}
/* sanity check */
if (!rdev->desc->ops->set_voltage &&
!rdev->desc->ops->set_voltage_sel) {
ret = -EINVAL;
goto out;
}
/* constraints check */
ret = regulator_check_voltage(rdev, &min_uV, &max_uV);
if (ret < 0)
goto out;
/* restore original values in case of error */
old_min_uV = voltage->min_uV;
old_max_uV = voltage->max_uV;
voltage->min_uV = min_uV;
voltage->max_uV = max_uV;
/* for not coupled regulators this will just set the voltage */
ret = regulator_balance_voltage(rdev, state);
if (ret < 0) {
voltage->min_uV = old_min_uV;
voltage->max_uV = old_max_uV;
}
out:
return ret;
}
int regulator_set_voltage_rdev(struct regulator_dev *rdev, int min_uV,
int max_uV, suspend_state_t state)
{
int best_supply_uV = 0;
int supply_change_uV = 0;
int ret;
if (rdev->supply &&
regulator_ops_is_valid(rdev->supply->rdev,
REGULATOR_CHANGE_VOLTAGE) &&
(rdev->desc->min_dropout_uV || !(rdev->desc->ops->get_voltage ||
rdev->desc->ops->get_voltage_sel))) {
int current_supply_uV;
int selector;
selector = regulator_map_voltage(rdev, min_uV, max_uV);
if (selector < 0) {
ret = selector;
goto out;
}
best_supply_uV = _regulator_list_voltage(rdev, selector, 0);
if (best_supply_uV < 0) {
ret = best_supply_uV;
goto out;
}
best_supply_uV += rdev->desc->min_dropout_uV;
current_supply_uV = regulator_get_voltage_rdev(rdev->supply->rdev);
if (current_supply_uV < 0) {
ret = current_supply_uV;
goto out;
}
supply_change_uV = best_supply_uV - current_supply_uV;
}
if (supply_change_uV > 0) {
ret = regulator_set_voltage_unlocked(rdev->supply,
best_supply_uV, INT_MAX, state);
if (ret) {
dev_err(&rdev->dev, "Failed to increase supply voltage: %pe\n",
ERR_PTR(ret));
goto out;
}
}
if (state == PM_SUSPEND_ON)
ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
else
ret = _regulator_do_set_suspend_voltage(rdev, min_uV,
max_uV, state);
if (ret < 0)
goto out;
if (supply_change_uV < 0) {
ret = regulator_set_voltage_unlocked(rdev->supply,
best_supply_uV, INT_MAX, state);
if (ret)
dev_warn(&rdev->dev, "Failed to decrease supply voltage: %pe\n",
ERR_PTR(ret));
/* No need to fail here */
ret = 0;
}
out:
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_rdev);
static int regulator_limit_voltage_step(struct regulator_dev *rdev,
int *current_uV, int *min_uV)
{
struct regulation_constraints *constraints = rdev->constraints;
/* Limit voltage change only if necessary */
if (!constraints->max_uV_step || !_regulator_is_enabled(rdev))
return 1;
if (*current_uV < 0) {
*current_uV = regulator_get_voltage_rdev(rdev);
if (*current_uV < 0)
return *current_uV;
}
if (abs(*current_uV - *min_uV) <= constraints->max_uV_step)
return 1;
/* Clamp target voltage within the given step */
if (*current_uV < *min_uV)
*min_uV = min(*current_uV + constraints->max_uV_step,
*min_uV);
else
*min_uV = max(*current_uV - constraints->max_uV_step,
*min_uV);
return 0;
}
static int regulator_get_optimal_voltage(struct regulator_dev *rdev,
int *current_uV,
int *min_uV, int *max_uV,
suspend_state_t state,
int n_coupled)
{
struct coupling_desc *c_desc = &rdev->coupling_desc;
struct regulator_dev **c_rdevs = c_desc->coupled_rdevs;
struct regulation_constraints *constraints = rdev->constraints;
int desired_min_uV = 0, desired_max_uV = INT_MAX;
int max_current_uV = 0, min_current_uV = INT_MAX;
int highest_min_uV = 0, target_uV, possible_uV;
int i, ret, max_spread;
bool done;
*current_uV = -1;
/*
* If there are no coupled regulators, simply set the voltage
* demanded by consumers.
*/
if (n_coupled == 1) {
/*
* If consumers don't provide any demands, set voltage
* to min_uV
*/
desired_min_uV = constraints->min_uV;
desired_max_uV = constraints->max_uV;
ret = regulator_check_consumers(rdev,
&desired_min_uV,
&desired_max_uV, state);
if (ret < 0)
return ret;
possible_uV = desired_min_uV;
done = true;
goto finish;
}
/* Find highest min desired voltage */
for (i = 0; i < n_coupled; i++) {
int tmp_min = 0;
int tmp_max = INT_MAX;
lockdep_assert_held_once(&c_rdevs[i]->mutex.base);
ret = regulator_check_consumers(c_rdevs[i],
&tmp_min,
&tmp_max, state);
if (ret < 0)
return ret;
ret = regulator_check_voltage(c_rdevs[i], &tmp_min, &tmp_max);
if (ret < 0)
return ret;
highest_min_uV = max(highest_min_uV, tmp_min);
if (i == 0) {
desired_min_uV = tmp_min;
desired_max_uV = tmp_max;
}
}
max_spread = constraints->max_spread[0];
/*
* Let target_uV be equal to the desired one if possible.
* If not, set it to minimum voltage, allowed by other coupled
* regulators.
*/
target_uV = max(desired_min_uV, highest_min_uV - max_spread);
/*
* Find min and max voltages, which currently aren't violating
* max_spread.
*/
for (i = 1; i < n_coupled; i++) {
int tmp_act;
if (!_regulator_is_enabled(c_rdevs[i]))
continue;
tmp_act = regulator_get_voltage_rdev(c_rdevs[i]);
if (tmp_act < 0)
return tmp_act;
min_current_uV = min(tmp_act, min_current_uV);
max_current_uV = max(tmp_act, max_current_uV);
}
/* There aren't any other regulators enabled */
if (max_current_uV == 0) {
possible_uV = target_uV;
} else {
/*
* Correct target voltage, so as it currently isn't
* violating max_spread
*/
possible_uV = max(target_uV, max_current_uV - max_spread);
possible_uV = min(possible_uV, min_current_uV + max_spread);
}
if (possible_uV > desired_max_uV)
return -EINVAL;
done = (possible_uV == target_uV);
desired_min_uV = possible_uV;
finish:
/* Apply max_uV_step constraint if necessary */
if (state == PM_SUSPEND_ON) {
ret = regulator_limit_voltage_step(rdev, current_uV,
&desired_min_uV);
if (ret < 0)
return ret;
if (ret == 0)
done = false;
}
/* Set current_uV if wasn't done earlier in the code and if necessary */
if (n_coupled > 1 && *current_uV == -1) {
if (_regulator_is_enabled(rdev)) {
ret = regulator_get_voltage_rdev(rdev);
if (ret < 0)
return ret;
*current_uV = ret;
} else {
*current_uV = desired_min_uV;
}
}
*min_uV = desired_min_uV;
*max_uV = desired_max_uV;
return done;
}
int regulator_do_balance_voltage(struct regulator_dev *rdev,
suspend_state_t state, bool skip_coupled)
{
struct regulator_dev **c_rdevs;
struct regulator_dev *best_rdev;
struct coupling_desc *c_desc = &rdev->coupling_desc;
int i, ret, n_coupled, best_min_uV, best_max_uV, best_c_rdev;
unsigned int delta, best_delta;
unsigned long c_rdev_done = 0;
bool best_c_rdev_done;
c_rdevs = c_desc->coupled_rdevs;
n_coupled = skip_coupled ? 1 : c_desc->n_coupled;
/*
* Find the best possible voltage change on each loop. Leave the loop
* if there isn't any possible change.
*/
do {
best_c_rdev_done = false;
best_delta = 0;
best_min_uV = 0;
best_max_uV = 0;
best_c_rdev = 0;
best_rdev = NULL;
/*
* Find highest difference between optimal voltage
* and current voltage.
*/
for (i = 0; i < n_coupled; i++) {
/*
* optimal_uV is the best voltage that can be set for
* i-th regulator at the moment without violating
* max_spread constraint in order to balance
* the coupled voltages.
*/
int optimal_uV = 0, optimal_max_uV = 0, current_uV = 0;
if (test_bit(i, &c_rdev_done))
continue;
ret = regulator_get_optimal_voltage(c_rdevs[i],
¤t_uV,
&optimal_uV,
&optimal_max_uV,
state, n_coupled);
if (ret < 0)
goto out;
delta = abs(optimal_uV - current_uV);
if (delta && best_delta <= delta) {
best_c_rdev_done = ret;
best_delta = delta;
best_rdev = c_rdevs[i];
best_min_uV = optimal_uV;
best_max_uV = optimal_max_uV;
best_c_rdev = i;
}
}
/* Nothing to change, return successfully */
if (!best_rdev) {
ret = 0;
goto out;
}
ret = regulator_set_voltage_rdev(best_rdev, best_min_uV,
best_max_uV, state);
if (ret < 0)
goto out;
if (best_c_rdev_done)
set_bit(best_c_rdev, &c_rdev_done);
} while (n_coupled > 1);
out:
return ret;
}
static int regulator_balance_voltage(struct regulator_dev *rdev,
suspend_state_t state)
{
struct coupling_desc *c_desc = &rdev->coupling_desc;
struct regulator_coupler *coupler = c_desc->coupler;
bool skip_coupled = false;
/*
* If system is in a state other than PM_SUSPEND_ON, don't check
* other coupled regulators.
*/
if (state != PM_SUSPEND_ON)
skip_coupled = true;
if (c_desc->n_resolved < c_desc->n_coupled) {
rdev_err(rdev, "Not all coupled regulators registered\n");
return -EPERM;
}
/* Invoke custom balancer for customized couplers */
if (coupler && coupler->balance_voltage)
return coupler->balance_voltage(coupler, rdev, state);
return regulator_do_balance_voltage(rdev, state, skip_coupled);
}
/**
* regulator_set_voltage - set regulator output voltage
* @regulator: regulator source
* @min_uV: Minimum required voltage in uV
* @max_uV: Maximum acceptable voltage in uV
*
* Sets a voltage regulator to the desired output voltage. This can be set
* during any regulator state. IOW, regulator can be disabled or enabled.
*
* If the regulator is enabled then the voltage will change to the new value
* immediately otherwise if the regulator is disabled the regulator will
* output at the new voltage when enabled.
*
* NOTE: If the regulator is shared between several devices then the lowest
* request voltage that meets the system constraints will be used.
* Regulator system constraints must be set for this regulator before
* calling this function otherwise this call will fail.
*/
int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
{
struct ww_acquire_ctx ww_ctx;
int ret;
regulator_lock_dependent(regulator->rdev, &ww_ctx);
ret = regulator_set_voltage_unlocked(regulator, min_uV, max_uV,
PM_SUSPEND_ON);
regulator_unlock_dependent(regulator->rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_voltage);
static inline int regulator_suspend_toggle(struct regulator_dev *rdev,
suspend_state_t state, bool en)
{
struct regulator_state *rstate;
rstate = regulator_get_suspend_state(rdev, state);
if (rstate == NULL)
return -EINVAL;
if (!rstate->changeable)
return -EPERM;
rstate->enabled = (en) ? ENABLE_IN_SUSPEND : DISABLE_IN_SUSPEND;
return 0;
}
int regulator_suspend_enable(struct regulator_dev *rdev,
suspend_state_t state)
{
return regulator_suspend_toggle(rdev, state, true);
}
EXPORT_SYMBOL_GPL(regulator_suspend_enable);
int regulator_suspend_disable(struct regulator_dev *rdev,
suspend_state_t state)
{
struct regulator *regulator;
struct regulator_voltage *voltage;
/*
* if any consumer wants this regulator device keeping on in
* suspend states, don't set it as disabled.
*/
list_for_each_entry(regulator, &rdev->consumer_list, list) {
voltage = ®ulator->voltage[state];
if (voltage->min_uV || voltage->max_uV)
return 0;
}
return regulator_suspend_toggle(rdev, state, false);
}
EXPORT_SYMBOL_GPL(regulator_suspend_disable);
static int _regulator_set_suspend_voltage(struct regulator *regulator,
int min_uV, int max_uV,
suspend_state_t state)
{
struct regulator_dev *rdev = regulator->rdev;
struct regulator_state *rstate;
rstate = regulator_get_suspend_state(rdev, state);
if (rstate == NULL)
return -EINVAL;
if (rstate->min_uV == rstate->max_uV) {
rdev_err(rdev, "The suspend voltage can't be changed!\n");
return -EPERM;
}
return regulator_set_voltage_unlocked(regulator, min_uV, max_uV, state);
}
int regulator_set_suspend_voltage(struct regulator *regulator, int min_uV,
int max_uV, suspend_state_t state)
{
struct ww_acquire_ctx ww_ctx;
int ret;
/* PM_SUSPEND_ON is handled by regulator_set_voltage() */
if (regulator_check_states(state) || state == PM_SUSPEND_ON)
return -EINVAL;
regulator_lock_dependent(regulator->rdev, &ww_ctx);
ret = _regulator_set_suspend_voltage(regulator, min_uV,
max_uV, state);
regulator_unlock_dependent(regulator->rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_suspend_voltage);
/**
* regulator_set_voltage_time - get raise/fall time
* @regulator: regulator source
* @old_uV: starting voltage in microvolts
* @new_uV: target voltage in microvolts
*
* Provided with the starting and ending voltage, this function attempts to
* calculate the time in microseconds required to rise or fall to this new
* voltage.
*/
int regulator_set_voltage_time(struct regulator *regulator,
int old_uV, int new_uV)
{
struct regulator_dev *rdev = regulator->rdev;
const struct regulator_ops *ops = rdev->desc->ops;
int old_sel = -1;
int new_sel = -1;
int voltage;
int i;
if (ops->set_voltage_time)
return ops->set_voltage_time(rdev, old_uV, new_uV);
else if (!ops->set_voltage_time_sel)
return _regulator_set_voltage_time(rdev, old_uV, new_uV);
/* Currently requires operations to do this */
if (!ops->list_voltage || !rdev->desc->n_voltages)
return -EINVAL;
for (i = 0; i < rdev->desc->n_voltages; i++) {
/* We only look for exact voltage matches here */
if (i < rdev->desc->linear_min_sel)
continue;
if (old_sel >= 0 && new_sel >= 0)
break;
voltage = regulator_list_voltage(regulator, i);
if (voltage < 0)
return -EINVAL;
if (voltage == 0)
continue;
if (voltage == old_uV)
old_sel = i;
if (voltage == new_uV)
new_sel = i;
}
if (old_sel < 0 || new_sel < 0)
return -EINVAL;
return ops->set_voltage_time_sel(rdev, old_sel, new_sel);
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_time);
/**
* regulator_set_voltage_time_sel - get raise/fall time
* @rdev: regulator source device
* @old_selector: selector for starting voltage
* @new_selector: selector for target voltage
*
* Provided with the starting and target voltage selectors, this function
* returns time in microseconds required to rise or fall to this new voltage
*
* Drivers providing ramp_delay in regulation_constraints can use this as their
* set_voltage_time_sel() operation.
*/
int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
int old_volt, new_volt;
/* sanity check */
if (!rdev->desc->ops->list_voltage)
return -EINVAL;
old_volt = rdev->desc->ops->list_voltage(rdev, old_selector);
new_volt = rdev->desc->ops->list_voltage(rdev, new_selector);
if (rdev->desc->ops->set_voltage_time)
return rdev->desc->ops->set_voltage_time(rdev, old_volt,
new_volt);
else
return _regulator_set_voltage_time(rdev, old_volt, new_volt);
}
EXPORT_SYMBOL_GPL(regulator_set_voltage_time_sel);
int regulator_sync_voltage_rdev(struct regulator_dev *rdev)
{
int ret;
regulator_lock(rdev);
if (!rdev->desc->ops->set_voltage &&
!rdev->desc->ops->set_voltage_sel) {
ret = -EINVAL;
goto out;
}
/* balance only, if regulator is coupled */
if (rdev->coupling_desc.n_coupled > 1)
ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
else
ret = -EOPNOTSUPP;
out:
regulator_unlock(rdev);
return ret;
}
/**
* regulator_sync_voltage - re-apply last regulator output voltage
* @regulator: regulator source
*
* Re-apply the last configured voltage. This is intended to be used
* where some external control source the consumer is cooperating with
* has caused the configured voltage to change.
*/
int regulator_sync_voltage(struct regulator *regulator)
{
struct regulator_dev *rdev = regulator->rdev;
struct regulator_voltage *voltage = ®ulator->voltage[PM_SUSPEND_ON];
int ret, min_uV, max_uV;
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_VOLTAGE))
return 0;
regulator_lock(rdev);
if (!rdev->desc->ops->set_voltage &&
!rdev->desc->ops->set_voltage_sel) {
ret = -EINVAL;
goto out;
}
/* This is only going to work if we've had a voltage configured. */
if (!voltage->min_uV && !voltage->max_uV) {
ret = -EINVAL;
goto out;
}
min_uV = voltage->min_uV;
max_uV = voltage->max_uV;
/* This should be a paranoia check... */
ret = regulator_check_voltage(rdev, &min_uV, &max_uV);
if (ret < 0)
goto out;
ret = regulator_check_consumers(rdev, &min_uV, &max_uV, 0);
if (ret < 0)
goto out;
/* balance only, if regulator is coupled */
if (rdev->coupling_desc.n_coupled > 1)
ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
else
ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
out:
regulator_unlock(rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_sync_voltage);
int regulator_get_voltage_rdev(struct regulator_dev *rdev)
{
int sel, ret;
bool bypassed;
if (rdev->desc->ops->get_bypass) {
ret = rdev->desc->ops->get_bypass(rdev, &bypassed);
if (ret < 0)
return ret;
if (bypassed) {
/* if bypassed the regulator must have a supply */
if (!rdev->supply) {
rdev_err(rdev,
"bypassed regulator has no supply!\n");
return -EPROBE_DEFER;
}
return regulator_get_voltage_rdev(rdev->supply->rdev);
}
}
if (rdev->desc->ops->get_voltage_sel) {
sel = rdev->desc->ops->get_voltage_sel(rdev);
if (sel < 0)
return sel;
ret = rdev->desc->ops->list_voltage(rdev, sel);
} else if (rdev->desc->ops->get_voltage) {
ret = rdev->desc->ops->get_voltage(rdev);
} else if (rdev->desc->ops->list_voltage) {
ret = rdev->desc->ops->list_voltage(rdev, 0);
} else if (rdev->desc->fixed_uV && (rdev->desc->n_voltages == 1)) {
ret = rdev->desc->fixed_uV;
} else if (rdev->supply) {
ret = regulator_get_voltage_rdev(rdev->supply->rdev);
} else if (rdev->supply_name) {
return -EPROBE_DEFER;
} else {
return -EINVAL;
}
if (ret < 0)
return ret;
return ret - rdev->constraints->uV_offset;
}
EXPORT_SYMBOL_GPL(regulator_get_voltage_rdev);
/**
* regulator_get_voltage - get regulator output voltage
* @regulator: regulator source
*
* This returns the current regulator voltage in uV.
*
* NOTE: If the regulator is disabled it will return the voltage value. This
* function should not be used to determine regulator state.
*/
int regulator_get_voltage(struct regulator *regulator)
{
struct ww_acquire_ctx ww_ctx;
int ret;
regulator_lock_dependent(regulator->rdev, &ww_ctx);
ret = regulator_get_voltage_rdev(regulator->rdev);
regulator_unlock_dependent(regulator->rdev, &ww_ctx);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_get_voltage);
/**
* regulator_set_current_limit - set regulator output current limit
* @regulator: regulator source
* @min_uA: Minimum supported current in uA
* @max_uA: Maximum supported current in uA
*
* Sets current sink to the desired output current. This can be set during
* any regulator state. IOW, regulator can be disabled or enabled.
*
* If the regulator is enabled then the current will change to the new value
* immediately otherwise if the regulator is disabled the regulator will
* output at the new current when enabled.
*
* NOTE: Regulator system constraints must be set for this regulator before
* calling this function otherwise this call will fail.
*/
int regulator_set_current_limit(struct regulator *regulator,
int min_uA, int max_uA)
{
struct regulator_dev *rdev = regulator->rdev;
int ret;
regulator_lock(rdev);
/* sanity check */
if (!rdev->desc->ops->set_current_limit) {
ret = -EINVAL;
goto out;
}
/* constraints check */
ret = regulator_check_current_limit(rdev, &min_uA, &max_uA);
if (ret < 0)
goto out;
ret = rdev->desc->ops->set_current_limit(rdev, min_uA, max_uA);
out:
regulator_unlock(rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_current_limit);
static int _regulator_get_current_limit_unlocked(struct regulator_dev *rdev)
{
/* sanity check */
if (!rdev->desc->ops->get_current_limit)
return -EINVAL;
return rdev->desc->ops->get_current_limit(rdev);
}
static int _regulator_get_current_limit(struct regulator_dev *rdev)
{
int ret;
regulator_lock(rdev);
ret = _regulator_get_current_limit_unlocked(rdev);
regulator_unlock(rdev);
return ret;
}
/**
* regulator_get_current_limit - get regulator output current
* @regulator: regulator source
*
* This returns the current supplied by the specified current sink in uA.
*
* NOTE: If the regulator is disabled it will return the current value. This
* function should not be used to determine regulator state.
*/
int regulator_get_current_limit(struct regulator *regulator)
{
return _regulator_get_current_limit(regulator->rdev);
}
EXPORT_SYMBOL_GPL(regulator_get_current_limit);
/**
* regulator_set_mode - set regulator operating mode
* @regulator: regulator source
* @mode: operating mode - one of the REGULATOR_MODE constants
*
* Set regulator operating mode to increase regulator efficiency or improve
* regulation performance.
*
* NOTE: Regulator system constraints must be set for this regulator before
* calling this function otherwise this call will fail.
*/
int regulator_set_mode(struct regulator *regulator, unsigned int mode)
{
struct regulator_dev *rdev = regulator->rdev;
int ret;
int regulator_curr_mode;
regulator_lock(rdev);
/* sanity check */
if (!rdev->desc->ops->set_mode) {
ret = -EINVAL;
goto out;
}
/* return if the same mode is requested */
if (rdev->desc->ops->get_mode) {
regulator_curr_mode = rdev->desc->ops->get_mode(rdev);
if (regulator_curr_mode == mode) {
ret = 0;
goto out;
}
}
/* constraints check */
ret = regulator_mode_constrain(rdev, &mode);
if (ret < 0)
goto out;
ret = rdev->desc->ops->set_mode(rdev, mode);
out:
regulator_unlock(rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_mode);
static unsigned int _regulator_get_mode_unlocked(struct regulator_dev *rdev)
{
/* sanity check */
if (!rdev->desc->ops->get_mode)
return -EINVAL;
return rdev->desc->ops->get_mode(rdev);
}
static unsigned int _regulator_get_mode(struct regulator_dev *rdev)
{
int ret;
regulator_lock(rdev);
ret = _regulator_get_mode_unlocked(rdev);
regulator_unlock(rdev);
return ret;
}
/**
* regulator_get_mode - get regulator operating mode
* @regulator: regulator source
*
* Get the current regulator operating mode.
*/
unsigned int regulator_get_mode(struct regulator *regulator)
{
return _regulator_get_mode(regulator->rdev);
}
EXPORT_SYMBOL_GPL(regulator_get_mode);
static int rdev_get_cached_err_flags(struct regulator_dev *rdev)
{
int ret = 0;
if (rdev->use_cached_err) {
spin_lock(&rdev->err_lock);
ret = rdev->cached_err;
spin_unlock(&rdev->err_lock);
}
return ret;
}
static int _regulator_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
int cached_flags, ret = 0;
regulator_lock(rdev);
cached_flags = rdev_get_cached_err_flags(rdev);
if (rdev->desc->ops->get_error_flags)
ret = rdev->desc->ops->get_error_flags(rdev, flags);
else if (!rdev->use_cached_err)
ret = -EINVAL;
*flags |= cached_flags;
regulator_unlock(rdev);
return ret;
}
/**
* regulator_get_error_flags - get regulator error information
* @regulator: regulator source
* @flags: pointer to store error flags
*
* Get the current regulator error information.
*/
int regulator_get_error_flags(struct regulator *regulator,
unsigned int *flags)
{
return _regulator_get_error_flags(regulator->rdev, flags);
}
EXPORT_SYMBOL_GPL(regulator_get_error_flags);
/**
* regulator_set_load - set regulator load
* @regulator: regulator source
* @uA_load: load current
*
* Notifies the regulator core of a new device load. This is then used by
* DRMS (if enabled by constraints) to set the most efficient regulator
* operating mode for the new regulator loading.
*
* Consumer devices notify their supply regulator of the maximum power
* they will require (can be taken from device datasheet in the power
* consumption tables) when they change operational status and hence power
* state. Examples of operational state changes that can affect power
* consumption are :-
*
* o Device is opened / closed.
* o Device I/O is about to begin or has just finished.
* o Device is idling in between work.
*
* This information is also exported via sysfs to userspace.
*
* DRMS will sum the total requested load on the regulator and change
* to the most efficient operating mode if platform constraints allow.
*
* NOTE: when a regulator consumer requests to have a regulator
* disabled then any load that consumer requested no longer counts
* toward the total requested load. If the regulator is re-enabled
* then the previously requested load will start counting again.
*
* If a regulator is an always-on regulator then an individual consumer's
* load will still be removed if that consumer is fully disabled.
*
* On error a negative errno is returned.
*/
int regulator_set_load(struct regulator *regulator, int uA_load)
{
struct regulator_dev *rdev = regulator->rdev;
int old_uA_load;
int ret = 0;
regulator_lock(rdev);
old_uA_load = regulator->uA_load;
regulator->uA_load = uA_load;
if (regulator->enable_count && old_uA_load != uA_load) {
ret = drms_uA_update(rdev);
if (ret < 0)
regulator->uA_load = old_uA_load;
}
regulator_unlock(rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_set_load);
/**
* regulator_allow_bypass - allow the regulator to go into bypass mode
*
* @regulator: Regulator to configure
* @enable: enable or disable bypass mode
*
* Allow the regulator to go into bypass mode if all other consumers
* for the regulator also enable bypass mode and the machine
* constraints allow this. Bypass mode means that the regulator is
* simply passing the input directly to the output with no regulation.
*/
int regulator_allow_bypass(struct regulator *regulator, bool enable)
{
struct regulator_dev *rdev = regulator->rdev;
const char *name = rdev_get_name(rdev);
int ret = 0;
if (!rdev->desc->ops->set_bypass)
return 0;
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_BYPASS))
return 0;
regulator_lock(rdev);
if (enable && !regulator->bypass) {
rdev->bypass_count++;
if (rdev->bypass_count == rdev->open_count) {
trace_regulator_bypass_enable(name);
ret = rdev->desc->ops->set_bypass(rdev, enable);
if (ret != 0)
rdev->bypass_count--;
else
trace_regulator_bypass_enable_complete(name);
}
} else if (!enable && regulator->bypass) {
rdev->bypass_count--;
if (rdev->bypass_count != rdev->open_count) {
trace_regulator_bypass_disable(name);
ret = rdev->desc->ops->set_bypass(rdev, enable);
if (ret != 0)
rdev->bypass_count++;
else
trace_regulator_bypass_disable_complete(name);
}
}
if (ret == 0)
regulator->bypass = enable;
regulator_unlock(rdev);
return ret;
}
EXPORT_SYMBOL_GPL(regulator_allow_bypass);
/**
* regulator_register_notifier - register regulator event notifier
* @regulator: regulator source
* @nb: notifier block
*
* Register notifier block to receive regulator events.
*/
int regulator_register_notifier(struct regulator *regulator,
struct notifier_block *nb)
{
return blocking_notifier_chain_register(®ulator->rdev->notifier,
nb);
}
EXPORT_SYMBOL_GPL(regulator_register_notifier);
/**
* regulator_unregister_notifier - unregister regulator event notifier
* @regulator: regulator source
* @nb: notifier block
*
* Unregister regulator event notifier block.
*/
int regulator_unregister_notifier(struct regulator *regulator,
struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(®ulator->rdev->notifier,
nb);
}
EXPORT_SYMBOL_GPL(regulator_unregister_notifier);
/* notify regulator consumers and downstream regulator consumers.
* Note mutex must be held by caller.
*/
static int _notifier_call_chain(struct regulator_dev *rdev,
unsigned long event, void *data)
{
/* call rdev chain first */
return blocking_notifier_call_chain(&rdev->notifier, event, data);
}
int _regulator_bulk_get(struct device *dev, int num_consumers,
struct regulator_bulk_data *consumers, enum regulator_get_type get_type)
{
int i;
int ret;
for (i = 0; i < num_consumers; i++)
consumers[i].consumer = NULL;
for (i = 0; i < num_consumers; i++) {
consumers[i].consumer = _regulator_get(dev,
consumers[i].supply, get_type);
if (IS_ERR(consumers[i].consumer)) {
ret = dev_err_probe(dev, PTR_ERR(consumers[i].consumer),
"Failed to get supply '%s'",
consumers[i].supply);
consumers[i].consumer = NULL;
goto err;
}
if (consumers[i].init_load_uA > 0) {
ret = regulator_set_load(consumers[i].consumer,
consumers[i].init_load_uA);
if (ret) {
i++;
goto err;
}
}
}
return 0;
err:
while (--i >= 0)
regulator_put(consumers[i].consumer);
return ret;
}
/**
* regulator_bulk_get - get multiple regulator consumers
*
* @dev: Device to supply
* @num_consumers: Number of consumers to register
* @consumers: Configuration of consumers; clients are stored here.
*
* @return 0 on success, an errno on failure.
*
* This helper function allows drivers to get several regulator
* consumers in one operation. If any of the regulators cannot be
* acquired then any regulators that were allocated will be freed
* before returning to the caller.
*/
int regulator_bulk_get(struct device *dev, int num_consumers,
struct regulator_bulk_data *consumers)
{
return _regulator_bulk_get(dev, num_consumers, consumers, NORMAL_GET);
}
EXPORT_SYMBOL_GPL(regulator_bulk_get);
static void regulator_bulk_enable_async(void *data, async_cookie_t cookie)
{
struct regulator_bulk_data *bulk = data;
bulk->ret = regulator_enable(bulk->consumer);
}
/**
* regulator_bulk_enable - enable multiple regulator consumers
*
* @num_consumers: Number of consumers
* @consumers: Consumer data; clients are stored here.
* @return 0 on success, an errno on failure
*
* This convenience API allows consumers to enable multiple regulator
* clients in a single API call. If any consumers cannot be enabled
* then any others that were enabled will be disabled again prior to
* return.
*/
int regulator_bulk_enable(int num_consumers,
struct regulator_bulk_data *consumers)
{
ASYNC_DOMAIN_EXCLUSIVE(async_domain);
int i;
int ret = 0;
for (i = 0; i < num_consumers; i++) {
async_schedule_domain(regulator_bulk_enable_async,
&consumers[i], &async_domain);
}
async_synchronize_full_domain(&async_domain);
/* If any consumer failed we need to unwind any that succeeded */
for (i = 0; i < num_consumers; i++) {
if (consumers[i].ret != 0) {
ret = consumers[i].ret;
goto err;
}
}
return 0;
err:
for (i = 0; i < num_consumers; i++) {
if (consumers[i].ret < 0)
pr_err("Failed to enable %s: %pe\n", consumers[i].supply,
ERR_PTR(consumers[i].ret));
else
regulator_disable(consumers[i].consumer);
}
return ret;
}
EXPORT_SYMBOL_GPL(regulator_bulk_enable);
/**
* regulator_bulk_disable - disable multiple regulator consumers
*
* @num_consumers: Number of consumers
* @consumers: Consumer data; clients are stored here.
* @return 0 on success, an errno on failure
*
* This convenience API allows consumers to disable multiple regulator
* clients in a single API call. If any consumers cannot be disabled
* then any others that were disabled will be enabled again prior to
* return.
*/
int regulator_bulk_disable(int num_consumers,
struct regulator_bulk_data *consumers)
{
int i;
int ret, r;
for (i = num_consumers - 1; i >= 0; --i) {
ret = regulator_disable(consumers[i].consumer);
if (ret != 0)
goto err;
}
return 0;
err:
pr_err("Failed to disable %s: %pe\n", consumers[i].supply, ERR_PTR(ret));
for (++i; i < num_consumers; ++i) {
r = regulator_enable(consumers[i].consumer);
if (r != 0)
pr_err("Failed to re-enable %s: %pe\n",
consumers[i].supply, ERR_PTR(r));
}
return ret;
}
EXPORT_SYMBOL_GPL(regulator_bulk_disable);
/**
* regulator_bulk_force_disable - force disable multiple regulator consumers
*
* @num_consumers: Number of consumers
* @consumers: Consumer data; clients are stored here.
* @return 0 on success, an errno on failure
*
* This convenience API allows consumers to forcibly disable multiple regulator
* clients in a single API call.
* NOTE: This should be used for situations when device damage will
* likely occur if the regulators are not disabled (e.g. over temp).
* Although regulator_force_disable function call for some consumers can
* return error numbers, the function is called for all consumers.
*/
int regulator_bulk_force_disable(int num_consumers,
struct regulator_bulk_data *consumers)
{
int i;
int ret = 0;
for (i = 0; i < num_consumers; i++) {
consumers[i].ret =
regulator_force_disable(consumers[i].consumer);
/* Store first error for reporting */
if (consumers[i].ret && !ret)
ret = consumers[i].ret;
}
return ret;
}
EXPORT_SYMBOL_GPL(regulator_bulk_force_disable);
/**
* regulator_bulk_free - free multiple regulator consumers
*
* @num_consumers: Number of consumers
* @consumers: Consumer data; clients are stored here.
*
* This convenience API allows consumers to free multiple regulator
* clients in a single API call.
*/
void regulator_bulk_free(int num_consumers,
struct regulator_bulk_data *consumers)
{
int i;
for (i = 0; i < num_consumers; i++) {
regulator_put(consumers[i].consumer);
consumers[i].consumer = NULL;
}
}
EXPORT_SYMBOL_GPL(regulator_bulk_free);
/**
* regulator_notifier_call_chain - call regulator event notifier
* @rdev: regulator source
* @event: notifier block
* @data: callback-specific data.
*
* Called by regulator drivers to notify clients a regulator event has
* occurred.
*/
int regulator_notifier_call_chain(struct regulator_dev *rdev,
unsigned long event, void *data)
{
_notifier_call_chain(rdev, event, data);
return NOTIFY_DONE;
}
EXPORT_SYMBOL_GPL(regulator_notifier_call_chain);
/**
* regulator_mode_to_status - convert a regulator mode into a status
*
* @mode: Mode to convert
*
* Convert a regulator mode into a status.
*/
int regulator_mode_to_status(unsigned int mode)
{
switch (mode) {
case REGULATOR_MODE_FAST:
return REGULATOR_STATUS_FAST;
case REGULATOR_MODE_NORMAL:
return REGULATOR_STATUS_NORMAL;
case REGULATOR_MODE_IDLE:
return REGULATOR_STATUS_IDLE;
case REGULATOR_MODE_STANDBY:
return REGULATOR_STATUS_STANDBY;
default:
return REGULATOR_STATUS_UNDEFINED;
}
}
EXPORT_SYMBOL_GPL(regulator_mode_to_status);
static struct attribute *regulator_dev_attrs[] = {
&dev_attr_name.attr,
&dev_attr_num_users.attr,
&dev_attr_type.attr,
&dev_attr_microvolts.attr,
&dev_attr_microamps.attr,
&dev_attr_opmode.attr,
&dev_attr_state.attr,
&dev_attr_status.attr,
&dev_attr_bypass.attr,
&dev_attr_requested_microamps.attr,
&dev_attr_min_microvolts.attr,
&dev_attr_max_microvolts.attr,
&dev_attr_min_microamps.attr,
&dev_attr_max_microamps.attr,
&dev_attr_under_voltage.attr,
&dev_attr_over_current.attr,
&dev_attr_regulation_out.attr,
&dev_attr_fail.attr,
&dev_attr_over_temp.attr,
&dev_attr_under_voltage_warn.attr,
&dev_attr_over_current_warn.attr,
&dev_attr_over_voltage_warn.attr,
&dev_attr_over_temp_warn.attr,
&dev_attr_suspend_standby_state.attr,
&dev_attr_suspend_mem_state.attr,
&dev_attr_suspend_disk_state.attr,
&dev_attr_suspend_standby_microvolts.attr,
&dev_attr_suspend_mem_microvolts.attr,
&dev_attr_suspend_disk_microvolts.attr,
&dev_attr_suspend_standby_mode.attr,
&dev_attr_suspend_mem_mode.attr,
&dev_attr_suspend_disk_mode.attr,
NULL
};
/*
* To avoid cluttering sysfs (and memory) with useless state, only
* create attributes that can be meaningfully displayed.
*/
static umode_t regulator_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int idx)
{
struct device *dev = kobj_to_dev(kobj);
struct regulator_dev *rdev = dev_to_rdev(dev);
const struct regulator_ops *ops = rdev->desc->ops;
umode_t mode = attr->mode;
/* these three are always present */
if (attr == &dev_attr_name.attr ||
attr == &dev_attr_num_users.attr ||
attr == &dev_attr_type.attr)
return mode;
/* some attributes need specific methods to be displayed */
if (attr == &dev_attr_microvolts.attr) {
if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
(ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0) ||
(ops->list_voltage && ops->list_voltage(rdev, 0) >= 0) ||
(rdev->desc->fixed_uV && rdev->desc->n_voltages == 1))
return mode;
return 0;
}
if (attr == &dev_attr_microamps.attr)
return ops->get_current_limit ? mode : 0;
if (attr == &dev_attr_opmode.attr)
return ops->get_mode ? mode : 0;
if (attr == &dev_attr_state.attr)
return (rdev->ena_pin || ops->is_enabled) ? mode : 0;
if (attr == &dev_attr_status.attr)
return ops->get_status ? mode : 0;
if (attr == &dev_attr_bypass.attr)
return ops->get_bypass ? mode : 0;
if (attr == &dev_attr_under_voltage.attr ||
attr == &dev_attr_over_current.attr ||
attr == &dev_attr_regulation_out.attr ||
attr == &dev_attr_fail.attr ||
attr == &dev_attr_over_temp.attr ||
attr == &dev_attr_under_voltage_warn.attr ||
attr == &dev_attr_over_current_warn.attr ||
attr == &dev_attr_over_voltage_warn.attr ||
attr == &dev_attr_over_temp_warn.attr)
return ops->get_error_flags ? mode : 0;
/* constraints need specific supporting methods */
if (attr == &dev_attr_min_microvolts.attr ||
attr == &dev_attr_max_microvolts.attr)
return (ops->set_voltage || ops->set_voltage_sel) ? mode : 0;
if (attr == &dev_attr_min_microamps.attr ||
attr == &dev_attr_max_microamps.attr)
return ops->set_current_limit ? mode : 0;
if (attr == &dev_attr_suspend_standby_state.attr ||
attr == &dev_attr_suspend_mem_state.attr ||
attr == &dev_attr_suspend_disk_state.attr)
return mode;
if (attr == &dev_attr_suspend_standby_microvolts.attr ||
attr == &dev_attr_suspend_mem_microvolts.attr ||
attr == &dev_attr_suspend_disk_microvolts.attr)
return ops->set_suspend_voltage ? mode : 0;
if (attr == &dev_attr_suspend_standby_mode.attr ||
attr == &dev_attr_suspend_mem_mode.attr ||
attr == &dev_attr_suspend_disk_mode.attr)
return ops->set_suspend_mode ? mode : 0;
return mode;
}
static const struct attribute_group regulator_dev_group = {
.attrs = regulator_dev_attrs,
.is_visible = regulator_attr_is_visible,
};
static const struct attribute_group *regulator_dev_groups[] = {
®ulator_dev_group,
NULL
};
static void regulator_dev_release(struct device *dev)
{
struct regulator_dev *rdev = dev_get_drvdata(dev);
debugfs_remove_recursive(rdev->debugfs);
kfree(rdev->constraints);
of_node_put(rdev->dev.of_node);
kfree(rdev);
}
static void rdev_init_debugfs(struct regulator_dev *rdev)
{
struct device *parent = rdev->dev.parent;
const char *rname = rdev_get_name(rdev);
char name[NAME_MAX];
/* Avoid duplicate debugfs directory names */
if (parent && rname == rdev->desc->name) {
snprintf(name, sizeof(name), "%s-%s", dev_name(parent),
rname);
rname = name;
}
rdev->debugfs = debugfs_create_dir(rname, debugfs_root);
if (IS_ERR(rdev->debugfs))
rdev_dbg(rdev, "Failed to create debugfs directory\n");
debugfs_create_u32("use_count", 0444, rdev->debugfs,
&rdev->use_count);
debugfs_create_u32("open_count", 0444, rdev->debugfs,
&rdev->open_count);
debugfs_create_u32("bypass_count", 0444, rdev->debugfs,
&rdev->bypass_count);
}
static int regulator_register_resolve_supply(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
if (regulator_resolve_supply(rdev))
rdev_dbg(rdev, "unable to resolve supply\n");
return 0;
}
int regulator_coupler_register(struct regulator_coupler *coupler)
{
mutex_lock(®ulator_list_mutex);
list_add_tail(&coupler->list, ®ulator_coupler_list);
mutex_unlock(®ulator_list_mutex);
return 0;
}
static struct regulator_coupler *
regulator_find_coupler(struct regulator_dev *rdev)
{
struct regulator_coupler *coupler;
int err;
/*
* Note that regulators are appended to the list and the generic
* coupler is registered first, hence it will be attached at last
* if nobody cared.
*/
list_for_each_entry_reverse(coupler, ®ulator_coupler_list, list) {
err = coupler->attach_regulator(coupler, rdev);
if (!err) {
if (!coupler->balance_voltage &&
rdev->coupling_desc.n_coupled > 2)
goto err_unsupported;
return coupler;
}
if (err < 0)
return ERR_PTR(err);
if (err == 1)
continue;
break;
}
return ERR_PTR(-EINVAL);
err_unsupported:
if (coupler->detach_regulator)
coupler->detach_regulator(coupler, rdev);
rdev_err(rdev,
"Voltage balancing for multiple regulator couples is unimplemented\n");
return ERR_PTR(-EPERM);
}
static void regulator_resolve_coupling(struct regulator_dev *rdev)
{
struct regulator_coupler *coupler = rdev->coupling_desc.coupler;
struct coupling_desc *c_desc = &rdev->coupling_desc;
int n_coupled = c_desc->n_coupled;
struct regulator_dev *c_rdev;
int i;
for (i = 1; i < n_coupled; i++) {
/* already resolved */
if (c_desc->coupled_rdevs[i])
continue;
c_rdev = of_parse_coupled_regulator(rdev, i - 1);
if (!c_rdev)
continue;
if (c_rdev->coupling_desc.coupler != coupler) {
rdev_err(rdev, "coupler mismatch with %s\n",
rdev_get_name(c_rdev));
return;
}
c_desc->coupled_rdevs[i] = c_rdev;
c_desc->n_resolved++;
regulator_resolve_coupling(c_rdev);
}
}
static void regulator_remove_coupling(struct regulator_dev *rdev)
{
struct regulator_coupler *coupler = rdev->coupling_desc.coupler;
struct coupling_desc *__c_desc, *c_desc = &rdev->coupling_desc;
struct regulator_dev *__c_rdev, *c_rdev;
unsigned int __n_coupled, n_coupled;
int i, k;
int err;
n_coupled = c_desc->n_coupled;
for (i = 1; i < n_coupled; i++) {
c_rdev = c_desc->coupled_rdevs[i];
if (!c_rdev)
continue;
regulator_lock(c_rdev);
__c_desc = &c_rdev->coupling_desc;
__n_coupled = __c_desc->n_coupled;
for (k = 1; k < __n_coupled; k++) {
__c_rdev = __c_desc->coupled_rdevs[k];
if (__c_rdev == rdev) {
__c_desc->coupled_rdevs[k] = NULL;
__c_desc->n_resolved--;
break;
}
}
regulator_unlock(c_rdev);
c_desc->coupled_rdevs[i] = NULL;
c_desc->n_resolved--;
}
if (coupler && coupler->detach_regulator) {
err = coupler->detach_regulator(coupler, rdev);
if (err)
rdev_err(rdev, "failed to detach from coupler: %pe\n",
ERR_PTR(err));
}
kfree(rdev->coupling_desc.coupled_rdevs);
rdev->coupling_desc.coupled_rdevs = NULL;
}
static int regulator_init_coupling(struct regulator_dev *rdev)
{
struct regulator_dev **coupled;
int err, n_phandles;
if (!IS_ENABLED(CONFIG_OF))
n_phandles = 0;
else
n_phandles = of_get_n_coupled(rdev);
coupled = kcalloc(n_phandles + 1, sizeof(*coupled), GFP_KERNEL);
if (!coupled)
return -ENOMEM;
rdev->coupling_desc.coupled_rdevs = coupled;
/*
* Every regulator should always have coupling descriptor filled with
* at least pointer to itself.
*/
rdev->coupling_desc.coupled_rdevs[0] = rdev;
rdev->coupling_desc.n_coupled = n_phandles + 1;
rdev->coupling_desc.n_resolved++;
/* regulator isn't coupled */
if (n_phandles == 0)
return 0;
if (!of_check_coupling_data(rdev))
return -EPERM;
mutex_lock(®ulator_list_mutex);
rdev->coupling_desc.coupler = regulator_find_coupler(rdev);
mutex_unlock(®ulator_list_mutex);
if (IS_ERR(rdev->coupling_desc.coupler)) {
err = PTR_ERR(rdev->coupling_desc.coupler);
rdev_err(rdev, "failed to get coupler: %pe\n", ERR_PTR(err));
return err;
}
return 0;
}
static int generic_coupler_attach(struct regulator_coupler *coupler,
struct regulator_dev *rdev)
{
if (rdev->coupling_desc.n_coupled > 2) {
rdev_err(rdev,
"Voltage balancing for multiple regulator couples is unimplemented\n");
return -EPERM;
}
if (!rdev->constraints->always_on) {
rdev_err(rdev,
"Coupling of a non always-on regulator is unimplemented\n");
return -ENOTSUPP;
}
return 0;
}
static struct regulator_coupler generic_regulator_coupler = {
.attach_regulator = generic_coupler_attach,
};
/**
* regulator_register - register regulator
* @dev: the device that drive the regulator
* @regulator_desc: regulator to register
* @cfg: runtime configuration for regulator
*
* Called by regulator drivers to register a regulator.
* Returns a valid pointer to struct regulator_dev on success
* or an ERR_PTR() on error.
*/
struct regulator_dev *
regulator_register(struct device *dev,
const struct regulator_desc *regulator_desc,
const struct regulator_config *cfg)
{
const struct regulator_init_data *init_data;
struct regulator_config *config = NULL;
static atomic_t regulator_no = ATOMIC_INIT(-1);
struct regulator_dev *rdev;
bool dangling_cfg_gpiod = false;
bool dangling_of_gpiod = false;
int ret, i;
bool resolved_early = false;
if (cfg == NULL)
return ERR_PTR(-EINVAL);
if (cfg->ena_gpiod)
dangling_cfg_gpiod = true;
if (regulator_desc == NULL) {
ret = -EINVAL;
goto rinse;
}
WARN_ON(!dev || !cfg->dev);
if (regulator_desc->name == NULL || regulator_desc->ops == NULL) {
ret = -EINVAL;
goto rinse;
}
if (regulator_desc->type != REGULATOR_VOLTAGE &&
regulator_desc->type != REGULATOR_CURRENT) {
ret = -EINVAL;
goto rinse;
}
/* Only one of each should be implemented */
WARN_ON(regulator_desc->ops->get_voltage &&
regulator_desc->ops->get_voltage_sel);
WARN_ON(regulator_desc->ops->set_voltage &&
regulator_desc->ops->set_voltage_sel);
/* If we're using selectors we must implement list_voltage. */
if (regulator_desc->ops->get_voltage_sel &&
!regulator_desc->ops->list_voltage) {
ret = -EINVAL;
goto rinse;
}
if (regulator_desc->ops->set_voltage_sel &&
!regulator_desc->ops->list_voltage) {
ret = -EINVAL;
goto rinse;
}
rdev = kzalloc(sizeof(struct regulator_dev), GFP_KERNEL);
if (rdev == NULL) {
ret = -ENOMEM;
goto rinse;
}
device_initialize(&rdev->dev);
spin_lock_init(&rdev->err_lock);
/*
* Duplicate the config so the driver could override it after
* parsing init data.
*/
config = kmemdup(cfg, sizeof(*cfg), GFP_KERNEL);
if (config == NULL) {
ret = -ENOMEM;
goto clean;
}
init_data = regulator_of_get_init_data(dev, regulator_desc, config,
&rdev->dev.of_node);
/*
* Sometimes not all resources are probed already so we need to take
* that into account. This happens most the time if the ena_gpiod comes
* from a gpio extender or something else.
*/
if (PTR_ERR(init_data) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
goto clean;
}
/*
* We need to keep track of any GPIO descriptor coming from the
* device tree until we have handled it over to the core. If the
* config that was passed in to this function DOES NOT contain
* a descriptor, and the config after this call DOES contain
* a descriptor, we definitely got one from parsing the device
* tree.
*/
if (!cfg->ena_gpiod && config->ena_gpiod)
dangling_of_gpiod = true;
if (!init_data) {
init_data = config->init_data;
rdev->dev.of_node = of_node_get(config->of_node);
}
ww_mutex_init(&rdev->mutex, ®ulator_ww_class);
rdev->reg_data = config->driver_data;
rdev->owner = regulator_desc->owner;
rdev->desc = regulator_desc;
if (config->regmap)
rdev->regmap = config->regmap;
else if (dev_get_regmap(dev, NULL))
rdev->regmap = dev_get_regmap(dev, NULL);
else if (dev->parent)
rdev->regmap = dev_get_regmap(dev->parent, NULL);
INIT_LIST_HEAD(&rdev->consumer_list);
INIT_LIST_HEAD(&rdev->list);
BLOCKING_INIT_NOTIFIER_HEAD(&rdev->notifier);
INIT_DELAYED_WORK(&rdev->disable_work, regulator_disable_work);
if (init_data && init_data->supply_regulator)
rdev->supply_name = init_data->supply_regulator;
else if (regulator_desc->supply_name)
rdev->supply_name = regulator_desc->supply_name;
/* register with sysfs */
rdev->dev.class = ®ulator_class;
rdev->dev.parent = config->dev;
dev_set_name(&rdev->dev, "regulator.%lu",
(unsigned long) atomic_inc_return(®ulator_no));
dev_set_drvdata(&rdev->dev, rdev);
/* set regulator constraints */
if (init_data)
rdev->constraints = kmemdup(&init_data->constraints,
sizeof(*rdev->constraints),
GFP_KERNEL);
else
rdev->constraints = kzalloc(sizeof(*rdev->constraints),
GFP_KERNEL);
if (!rdev->constraints) {
ret = -ENOMEM;
goto wash;
}
if ((rdev->supply_name && !rdev->supply) &&
(rdev->constraints->always_on ||
rdev->constraints->boot_on)) {
ret = regulator_resolve_supply(rdev);
if (ret)
rdev_dbg(rdev, "unable to resolve supply early: %pe\n",
ERR_PTR(ret));
resolved_early = true;
}
/* perform any regulator specific init */
if (init_data && init_data->regulator_init) {
ret = init_data->regulator_init(rdev->reg_data);
if (ret < 0)
goto wash;
}
if (config->ena_gpiod) {
ret = regulator_ena_gpio_request(rdev, config);
if (ret != 0) {
rdev_err(rdev, "Failed to request enable GPIO: %pe\n",
ERR_PTR(ret));
goto wash;
}
/* The regulator core took over the GPIO descriptor */
dangling_cfg_gpiod = false;
dangling_of_gpiod = false;
}
ret = set_machine_constraints(rdev);
if (ret == -EPROBE_DEFER && !resolved_early) {
/* Regulator might be in bypass mode and so needs its supply
* to set the constraints
*/
/* FIXME: this currently triggers a chicken-and-egg problem
* when creating -SUPPLY symlink in sysfs to a regulator
* that is just being created
*/
rdev_dbg(rdev, "will resolve supply early: %s\n",
rdev->supply_name);
ret = regulator_resolve_supply(rdev);
if (!ret)
ret = set_machine_constraints(rdev);
else
rdev_dbg(rdev, "unable to resolve supply early: %pe\n",
ERR_PTR(ret));
}
if (ret < 0)
goto wash;
ret = regulator_init_coupling(rdev);
if (ret < 0)
goto wash;
/* add consumers devices */
if (init_data) {
for (i = 0; i < init_data->num_consumer_supplies; i++) {
ret = set_consumer_device_supply(rdev,
init_data->consumer_supplies[i].dev_name,
init_data->consumer_supplies[i].supply);
if (ret < 0) {
dev_err(dev, "Failed to set supply %s\n",
init_data->consumer_supplies[i].supply);
goto unset_supplies;
}
}
}
if (!rdev->desc->ops->get_voltage &&
!rdev->desc->ops->list_voltage &&
!rdev->desc->fixed_uV)
rdev->is_switch = true;
ret = device_add(&rdev->dev);
if (ret != 0)
goto unset_supplies;
rdev_init_debugfs(rdev);
/* try to resolve regulators coupling since a new one was registered */
mutex_lock(®ulator_list_mutex);
regulator_resolve_coupling(rdev);
mutex_unlock(®ulator_list_mutex);
/* try to resolve regulators supply since a new one was registered */
class_for_each_device(®ulator_class, NULL, NULL,
regulator_register_resolve_supply);
kfree(config);
return rdev;
unset_supplies:
mutex_lock(®ulator_list_mutex);
unset_regulator_supplies(rdev);
regulator_remove_coupling(rdev);
mutex_unlock(®ulator_list_mutex);
wash:
regulator_put(rdev->supply);
kfree(rdev->coupling_desc.coupled_rdevs);
mutex_lock(®ulator_list_mutex);
regulator_ena_gpio_free(rdev);
mutex_unlock(®ulator_list_mutex);
put_device(&rdev->dev);
rdev = NULL;
clean:
if (dangling_of_gpiod)
gpiod_put(config->ena_gpiod);
if (rdev && rdev->dev.of_node)
of_node_put(rdev->dev.of_node);
kfree(rdev);
kfree(config);
rinse:
if (dangling_cfg_gpiod)
gpiod_put(cfg->ena_gpiod);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(regulator_register);
/**
* regulator_unregister - unregister regulator
* @rdev: regulator to unregister
*
* Called by regulator drivers to unregister a regulator.
*/
void regulator_unregister(struct regulator_dev *rdev)
{
if (rdev == NULL)
return;
if (rdev->supply) {
while (rdev->use_count--)
regulator_disable(rdev->supply);
regulator_put(rdev->supply);
}
flush_work(&rdev->disable_work.work);
mutex_lock(®ulator_list_mutex);
WARN_ON(rdev->open_count);
regulator_remove_coupling(rdev);
unset_regulator_supplies(rdev);
list_del(&rdev->list);
regulator_ena_gpio_free(rdev);
device_unregister(&rdev->dev);
mutex_unlock(®ulator_list_mutex);
}
EXPORT_SYMBOL_GPL(regulator_unregister);
#ifdef CONFIG_SUSPEND
/**
* regulator_suspend - prepare regulators for system wide suspend
* @dev: ``&struct device`` pointer that is passed to _regulator_suspend()
*
* Configure each regulator with it's suspend operating parameters for state.
*/
static int regulator_suspend(struct device *dev)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
suspend_state_t state = pm_suspend_target_state;
int ret;
const struct regulator_state *rstate;
rstate = regulator_get_suspend_state_check(rdev, state);
if (!rstate)
return 0;
regulator_lock(rdev);
ret = __suspend_set_state(rdev, rstate);
regulator_unlock(rdev);
return ret;
}
static int regulator_resume(struct device *dev)
{
suspend_state_t state = pm_suspend_target_state;
struct regulator_dev *rdev = dev_to_rdev(dev);
struct regulator_state *rstate;
int ret = 0;
rstate = regulator_get_suspend_state(rdev, state);
if (rstate == NULL)
return 0;
/* Avoid grabbing the lock if we don't need to */
if (!rdev->desc->ops->resume)
return 0;
regulator_lock(rdev);
if (rstate->enabled == ENABLE_IN_SUSPEND ||
rstate->enabled == DISABLE_IN_SUSPEND)
ret = rdev->desc->ops->resume(rdev);
regulator_unlock(rdev);
return ret;
}
#else /* !CONFIG_SUSPEND */
#define regulator_suspend NULL
#define regulator_resume NULL
#endif /* !CONFIG_SUSPEND */
#ifdef CONFIG_PM
static const struct dev_pm_ops __maybe_unused regulator_pm_ops = {
.suspend = regulator_suspend,
.resume = regulator_resume,
};
#endif
struct class regulator_class = {
.name = "regulator",
.dev_release = regulator_dev_release,
.dev_groups = regulator_dev_groups,
#ifdef CONFIG_PM
.pm = ®ulator_pm_ops,
#endif
};
/**
* regulator_has_full_constraints - the system has fully specified constraints
*
* Calling this function will cause the regulator API to disable all
* regulators which have a zero use count and don't have an always_on
* constraint in a late_initcall.
*
* The intention is that this will become the default behaviour in a
* future kernel release so users are encouraged to use this facility
* now.
*/
void regulator_has_full_constraints(void)
{
has_full_constraints = 1;
}
EXPORT_SYMBOL_GPL(regulator_has_full_constraints);
/**
* rdev_get_drvdata - get rdev regulator driver data
* @rdev: regulator
*
* Get rdev regulator driver private data. This call can be used in the
* regulator driver context.
*/
void *rdev_get_drvdata(struct regulator_dev *rdev)
{
return rdev->reg_data;
}
EXPORT_SYMBOL_GPL(rdev_get_drvdata);
/**
* regulator_get_drvdata - get regulator driver data
* @regulator: regulator
*
* Get regulator driver private data. This call can be used in the consumer
* driver context when non API regulator specific functions need to be called.
*/
void *regulator_get_drvdata(struct regulator *regulator)
{
return regulator->rdev->reg_data;
}
EXPORT_SYMBOL_GPL(regulator_get_drvdata);
/**
* regulator_set_drvdata - set regulator driver data
* @regulator: regulator
* @data: data
*/
void regulator_set_drvdata(struct regulator *regulator, void *data)
{
regulator->rdev->reg_data = data;
}
EXPORT_SYMBOL_GPL(regulator_set_drvdata);
/**
* rdev_get_id - get regulator ID
* @rdev: regulator
*/
int rdev_get_id(struct regulator_dev *rdev)
{
return rdev->desc->id;
}
EXPORT_SYMBOL_GPL(rdev_get_id);
struct device *rdev_get_dev(struct regulator_dev *rdev)
{
return &rdev->dev;
}
EXPORT_SYMBOL_GPL(rdev_get_dev);
struct regmap *rdev_get_regmap(struct regulator_dev *rdev)
{
return rdev->regmap;
}
EXPORT_SYMBOL_GPL(rdev_get_regmap);
void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data)
{
return reg_init_data->driver_data;
}
EXPORT_SYMBOL_GPL(regulator_get_init_drvdata);
#ifdef CONFIG_DEBUG_FS
static int supply_map_show(struct seq_file *sf, void *data)
{
struct regulator_map *map;
list_for_each_entry(map, ®ulator_map_list, list) {
seq_printf(sf, "%s -> %s.%s\n",
rdev_get_name(map->regulator), map->dev_name,
map->supply);
}
return 0;
}
DEFINE_SHOW_ATTRIBUTE(supply_map);
struct summary_data {
struct seq_file *s;
struct regulator_dev *parent;
int level;
};
static void regulator_summary_show_subtree(struct seq_file *s,
struct regulator_dev *rdev,
int level);
static int regulator_summary_show_children(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
struct summary_data *summary_data = data;
if (rdev->supply && rdev->supply->rdev == summary_data->parent)
regulator_summary_show_subtree(summary_data->s, rdev,
summary_data->level + 1);
return 0;
}
static void regulator_summary_show_subtree(struct seq_file *s,
struct regulator_dev *rdev,
int level)
{
struct regulation_constraints *c;
struct regulator *consumer;
struct summary_data summary_data;
unsigned int opmode;
if (!rdev)
return;
opmode = _regulator_get_mode_unlocked(rdev);
seq_printf(s, "%*s%-*s %3d %4d %6d %7s ",
level * 3 + 1, "",
30 - level * 3, rdev_get_name(rdev),
rdev->use_count, rdev->open_count, rdev->bypass_count,
regulator_opmode_to_str(opmode));
seq_printf(s, "%5dmV ", regulator_get_voltage_rdev(rdev) / 1000);
seq_printf(s, "%5dmA ",
_regulator_get_current_limit_unlocked(rdev) / 1000);
c = rdev->constraints;
if (c) {
switch (rdev->desc->type) {
case REGULATOR_VOLTAGE:
seq_printf(s, "%5dmV %5dmV ",
c->min_uV / 1000, c->max_uV / 1000);
break;
case REGULATOR_CURRENT:
seq_printf(s, "%5dmA %5dmA ",
c->min_uA / 1000, c->max_uA / 1000);
break;
}
}
seq_puts(s, "\n");
list_for_each_entry(consumer, &rdev->consumer_list, list) {
if (consumer->dev && consumer->dev->class == ®ulator_class)
continue;
seq_printf(s, "%*s%-*s ",
(level + 1) * 3 + 1, "",
30 - (level + 1) * 3,
consumer->supply_name ? consumer->supply_name :
consumer->dev ? dev_name(consumer->dev) : "deviceless");
switch (rdev->desc->type) {
case REGULATOR_VOLTAGE:
seq_printf(s, "%3d %33dmA%c%5dmV %5dmV",
consumer->enable_count,
consumer->uA_load / 1000,
consumer->uA_load && !consumer->enable_count ?
'*' : ' ',
consumer->voltage[PM_SUSPEND_ON].min_uV / 1000,
consumer->voltage[PM_SUSPEND_ON].max_uV / 1000);
break;
case REGULATOR_CURRENT:
break;
}
seq_puts(s, "\n");
}
summary_data.s = s;
summary_data.level = level;
summary_data.parent = rdev;
class_for_each_device(®ulator_class, NULL, &summary_data,
regulator_summary_show_children);
}
struct summary_lock_data {
struct ww_acquire_ctx *ww_ctx;
struct regulator_dev **new_contended_rdev;
struct regulator_dev **old_contended_rdev;
};
static int regulator_summary_lock_one(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
struct summary_lock_data *lock_data = data;
int ret = 0;
if (rdev != *lock_data->old_contended_rdev) {
ret = regulator_lock_nested(rdev, lock_data->ww_ctx);
if (ret == -EDEADLK)
*lock_data->new_contended_rdev = rdev;
else
WARN_ON_ONCE(ret);
} else {
*lock_data->old_contended_rdev = NULL;
}
return ret;
}
static int regulator_summary_unlock_one(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
struct summary_lock_data *lock_data = data;
if (lock_data) {
if (rdev == *lock_data->new_contended_rdev)
return -EDEADLK;
}
regulator_unlock(rdev);
return 0;
}
static int regulator_summary_lock_all(struct ww_acquire_ctx *ww_ctx,
struct regulator_dev **new_contended_rdev,
struct regulator_dev **old_contended_rdev)
{
struct summary_lock_data lock_data;
int ret;
lock_data.ww_ctx = ww_ctx;
lock_data.new_contended_rdev = new_contended_rdev;
lock_data.old_contended_rdev = old_contended_rdev;
ret = class_for_each_device(®ulator_class, NULL, &lock_data,
regulator_summary_lock_one);
if (ret)
class_for_each_device(®ulator_class, NULL, &lock_data,
regulator_summary_unlock_one);
return ret;
}
static void regulator_summary_lock(struct ww_acquire_ctx *ww_ctx)
{
struct regulator_dev *new_contended_rdev = NULL;
struct regulator_dev *old_contended_rdev = NULL;
int err;
mutex_lock(®ulator_list_mutex);
ww_acquire_init(ww_ctx, ®ulator_ww_class);
do {
if (new_contended_rdev) {
ww_mutex_lock_slow(&new_contended_rdev->mutex, ww_ctx);
old_contended_rdev = new_contended_rdev;
old_contended_rdev->ref_cnt++;
old_contended_rdev->mutex_owner = current;
}
err = regulator_summary_lock_all(ww_ctx,
&new_contended_rdev,
&old_contended_rdev);
if (old_contended_rdev)
regulator_unlock(old_contended_rdev);
} while (err == -EDEADLK);
ww_acquire_done(ww_ctx);
}
static void regulator_summary_unlock(struct ww_acquire_ctx *ww_ctx)
{
class_for_each_device(®ulator_class, NULL, NULL,
regulator_summary_unlock_one);
ww_acquire_fini(ww_ctx);
mutex_unlock(®ulator_list_mutex);
}
static int regulator_summary_show_roots(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
struct seq_file *s = data;
if (!rdev->supply)
regulator_summary_show_subtree(s, rdev, 0);
return 0;
}
static int regulator_summary_show(struct seq_file *s, void *data)
{
struct ww_acquire_ctx ww_ctx;
seq_puts(s, " regulator use open bypass opmode voltage current min max\n");
seq_puts(s, "---------------------------------------------------------------------------------------\n");
regulator_summary_lock(&ww_ctx);
class_for_each_device(®ulator_class, NULL, s,
regulator_summary_show_roots);
regulator_summary_unlock(&ww_ctx);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(regulator_summary);
#endif /* CONFIG_DEBUG_FS */
static int __init regulator_init(void)
{
int ret;
ret = class_register(®ulator_class);
debugfs_root = debugfs_create_dir("regulator", NULL);
if (IS_ERR(debugfs_root))
pr_debug("regulator: Failed to create debugfs directory\n");
#ifdef CONFIG_DEBUG_FS
debugfs_create_file("supply_map", 0444, debugfs_root, NULL,
&supply_map_fops);
debugfs_create_file("regulator_summary", 0444, debugfs_root,
NULL, ®ulator_summary_fops);
#endif
regulator_dummy_init();
regulator_coupler_register(&generic_regulator_coupler);
return ret;
}
/* init early to allow our consumers to complete system booting */
core_initcall(regulator_init);
static int regulator_late_cleanup(struct device *dev, void *data)
{
struct regulator_dev *rdev = dev_to_rdev(dev);
struct regulation_constraints *c = rdev->constraints;
int ret;
if (c && c->always_on)
return 0;
if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_STATUS))
return 0;
regulator_lock(rdev);
if (rdev->use_count)
goto unlock;
/* If reading the status failed, assume that it's off. */
if (_regulator_is_enabled(rdev) <= 0)
goto unlock;
if (have_full_constraints()) {
/* We log since this may kill the system if it goes
* wrong.
*/
rdev_info(rdev, "disabling\n");
ret = _regulator_do_disable(rdev);
if (ret != 0)
rdev_err(rdev, "couldn't disable: %pe\n", ERR_PTR(ret));
} else {
/* The intention is that in future we will
* assume that full constraints are provided
* so warn even if we aren't going to do
* anything here.
*/
rdev_warn(rdev, "incomplete constraints, leaving on\n");
}
unlock:
regulator_unlock(rdev);
return 0;
}
static void regulator_init_complete_work_function(struct work_struct *work)
{
/*
* Regulators may had failed to resolve their input supplies
* when were registered, either because the input supply was
* not registered yet or because its parent device was not
* bound yet. So attempt to resolve the input supplies for
* pending regulators before trying to disable unused ones.
*/
class_for_each_device(®ulator_class, NULL, NULL,
regulator_register_resolve_supply);
/* If we have a full configuration then disable any regulators
* we have permission to change the status for and which are
* not in use or always_on. This is effectively the default
* for DT and ACPI as they have full constraints.
*/
class_for_each_device(®ulator_class, NULL, NULL,
regulator_late_cleanup);
}
static DECLARE_DELAYED_WORK(regulator_init_complete_work,
regulator_init_complete_work_function);
static int __init regulator_init_complete(void)
{
/*
* Since DT doesn't provide an idiomatic mechanism for
* enabling full constraints and since it's much more natural
* with DT to provide them just assume that a DT enabled
* system has full constraints.
*/
if (of_have_populated_dt())
has_full_constraints = true;
/*
* We punt completion for an arbitrary amount of time since
* systems like distros will load many drivers from userspace
* so consumers might not always be ready yet, this is
* particularly an issue with laptops where this might bounce
* the display off then on. Ideally we'd get a notification
* from userspace when this happens but we don't so just wait
* a bit and hope we waited long enough. It'd be better if
* we'd only do this on systems that need it, and a kernel
* command line option might be useful.
*/
schedule_delayed_work(®ulator_init_complete_work,
msecs_to_jiffies(30000));
return 0;
}
late_initcall_sync(regulator_init_complete);
| linux-master | drivers/regulator/core.c |
// SPDX-License-Identifier: GPL-2.0+
//
// max8997.c - Regulator driver for the Maxim 8997/8966
//
// Copyright (C) 2011 Samsung Electronics
// MyungJoo Ham <[email protected]>
//
// This driver is based on max8998.c
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/max8997.h>
#include <linux/mfd/max8997-private.h>
#include <linux/regulator/of_regulator.h>
struct max8997_data {
struct device *dev;
struct max8997_dev *iodev;
int num_regulators;
int ramp_delay; /* in mV/us */
bool buck1_gpiodvs;
bool buck2_gpiodvs;
bool buck5_gpiodvs;
u8 buck1_vol[8];
u8 buck2_vol[8];
u8 buck5_vol[8];
int buck125_gpios[3];
int buck125_gpioindex;
bool ignore_gpiodvs_side_effect;
u8 saved_states[MAX8997_REG_MAX];
};
static const unsigned int safeoutvolt[] = {
4850000,
4900000,
4950000,
3300000,
};
static inline void max8997_set_gpio(struct max8997_data *max8997)
{
int set3 = (max8997->buck125_gpioindex) & 0x1;
int set2 = ((max8997->buck125_gpioindex) >> 1) & 0x1;
int set1 = ((max8997->buck125_gpioindex) >> 2) & 0x1;
gpio_set_value(max8997->buck125_gpios[0], set1);
gpio_set_value(max8997->buck125_gpios[1], set2);
gpio_set_value(max8997->buck125_gpios[2], set3);
}
struct voltage_map_desc {
int min;
int max;
int step;
};
/* Voltage maps in uV */
static const struct voltage_map_desc ldo_voltage_map_desc = {
.min = 800000, .max = 3950000, .step = 50000,
}; /* LDO1 ~ 18, 21 all */
static const struct voltage_map_desc buck1245_voltage_map_desc = {
.min = 650000, .max = 2225000, .step = 25000,
}; /* Buck1, 2, 4, 5 */
static const struct voltage_map_desc buck37_voltage_map_desc = {
.min = 750000, .max = 3900000, .step = 50000,
}; /* Buck3, 7 */
/* current map in uA */
static const struct voltage_map_desc charger_current_map_desc = {
.min = 200000, .max = 950000, .step = 50000,
};
static const struct voltage_map_desc topoff_current_map_desc = {
.min = 50000, .max = 200000, .step = 10000,
};
static const struct voltage_map_desc *reg_voltage_map[] = {
[MAX8997_LDO1] = &ldo_voltage_map_desc,
[MAX8997_LDO2] = &ldo_voltage_map_desc,
[MAX8997_LDO3] = &ldo_voltage_map_desc,
[MAX8997_LDO4] = &ldo_voltage_map_desc,
[MAX8997_LDO5] = &ldo_voltage_map_desc,
[MAX8997_LDO6] = &ldo_voltage_map_desc,
[MAX8997_LDO7] = &ldo_voltage_map_desc,
[MAX8997_LDO8] = &ldo_voltage_map_desc,
[MAX8997_LDO9] = &ldo_voltage_map_desc,
[MAX8997_LDO10] = &ldo_voltage_map_desc,
[MAX8997_LDO11] = &ldo_voltage_map_desc,
[MAX8997_LDO12] = &ldo_voltage_map_desc,
[MAX8997_LDO13] = &ldo_voltage_map_desc,
[MAX8997_LDO14] = &ldo_voltage_map_desc,
[MAX8997_LDO15] = &ldo_voltage_map_desc,
[MAX8997_LDO16] = &ldo_voltage_map_desc,
[MAX8997_LDO17] = &ldo_voltage_map_desc,
[MAX8997_LDO18] = &ldo_voltage_map_desc,
[MAX8997_LDO21] = &ldo_voltage_map_desc,
[MAX8997_BUCK1] = &buck1245_voltage_map_desc,
[MAX8997_BUCK2] = &buck1245_voltage_map_desc,
[MAX8997_BUCK3] = &buck37_voltage_map_desc,
[MAX8997_BUCK4] = &buck1245_voltage_map_desc,
[MAX8997_BUCK5] = &buck1245_voltage_map_desc,
[MAX8997_BUCK6] = NULL,
[MAX8997_BUCK7] = &buck37_voltage_map_desc,
[MAX8997_EN32KHZ_AP] = NULL,
[MAX8997_EN32KHZ_CP] = NULL,
[MAX8997_ENVICHG] = NULL,
[MAX8997_ESAFEOUT1] = NULL,
[MAX8997_ESAFEOUT2] = NULL,
[MAX8997_CHARGER_CV] = NULL,
[MAX8997_CHARGER] = &charger_current_map_desc,
[MAX8997_CHARGER_TOPOFF] = &topoff_current_map_desc,
};
static int max8997_list_voltage_charger_cv(struct regulator_dev *rdev,
unsigned int selector)
{
int rid = rdev_get_id(rdev);
if (rid != MAX8997_CHARGER_CV)
goto err;
switch (selector) {
case 0x00:
return 4200000;
case 0x01 ... 0x0E:
return 4000000 + 20000 * (selector - 0x01);
case 0x0F:
return 4350000;
default:
return -EINVAL;
}
err:
return -EINVAL;
}
static int max8997_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
const struct voltage_map_desc *desc;
int rid = rdev_get_id(rdev);
int val;
if (rid < 0 || rid >= ARRAY_SIZE(reg_voltage_map))
return -EINVAL;
desc = reg_voltage_map[rid];
if (desc == NULL)
return -EINVAL;
val = desc->min + desc->step * selector;
if (val > desc->max)
return -EINVAL;
return val;
}
static int max8997_get_enable_register(struct regulator_dev *rdev,
int *reg, int *mask, int *pattern)
{
int rid = rdev_get_id(rdev);
switch (rid) {
case MAX8997_LDO1 ... MAX8997_LDO21:
*reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
*mask = 0xC0;
*pattern = 0xC0;
break;
case MAX8997_BUCK1:
*reg = MAX8997_REG_BUCK1CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK2:
*reg = MAX8997_REG_BUCK2CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK3:
*reg = MAX8997_REG_BUCK3CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK4:
*reg = MAX8997_REG_BUCK4CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK5:
*reg = MAX8997_REG_BUCK5CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK6:
*reg = MAX8997_REG_BUCK6CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_BUCK7:
*reg = MAX8997_REG_BUCK7CTRL;
*mask = 0x01;
*pattern = 0x01;
break;
case MAX8997_EN32KHZ_AP ... MAX8997_EN32KHZ_CP:
*reg = MAX8997_REG_MAINCON1;
*mask = 0x01 << (rid - MAX8997_EN32KHZ_AP);
*pattern = 0x01 << (rid - MAX8997_EN32KHZ_AP);
break;
case MAX8997_ENVICHG:
*reg = MAX8997_REG_MBCCTRL1;
*mask = 0x80;
*pattern = 0x80;
break;
case MAX8997_ESAFEOUT1 ... MAX8997_ESAFEOUT2:
*reg = MAX8997_REG_SAFEOUTCTRL;
*mask = 0x40 << (rid - MAX8997_ESAFEOUT1);
*pattern = 0x40 << (rid - MAX8997_ESAFEOUT1);
break;
case MAX8997_CHARGER:
*reg = MAX8997_REG_MBCCTRL2;
*mask = 0x40;
*pattern = 0x40;
break;
default:
/* Not controllable or not exists */
return -EINVAL;
}
return 0;
}
static int max8997_reg_is_enabled(struct regulator_dev *rdev)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int ret, reg, mask, pattern;
u8 val;
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
if (ret)
return ret;
ret = max8997_read_reg(i2c, reg, &val);
if (ret)
return ret;
return (val & mask) == pattern;
}
static int max8997_reg_enable(struct regulator_dev *rdev)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int ret, reg, mask, pattern;
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
if (ret)
return ret;
return max8997_update_reg(i2c, reg, pattern, mask);
}
static int max8997_reg_disable(struct regulator_dev *rdev)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int ret, reg, mask, pattern;
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
if (ret)
return ret;
return max8997_update_reg(i2c, reg, ~pattern, mask);
}
static int max8997_get_voltage_register(struct regulator_dev *rdev,
int *_reg, int *_shift, int *_mask)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev);
int reg, shift = 0, mask = 0x3f;
switch (rid) {
case MAX8997_LDO1 ... MAX8997_LDO21:
reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
break;
case MAX8997_BUCK1:
reg = MAX8997_REG_BUCK1DVS1;
if (max8997->buck1_gpiodvs)
reg += max8997->buck125_gpioindex;
break;
case MAX8997_BUCK2:
reg = MAX8997_REG_BUCK2DVS1;
if (max8997->buck2_gpiodvs)
reg += max8997->buck125_gpioindex;
break;
case MAX8997_BUCK3:
reg = MAX8997_REG_BUCK3DVS;
break;
case MAX8997_BUCK4:
reg = MAX8997_REG_BUCK4DVS;
break;
case MAX8997_BUCK5:
reg = MAX8997_REG_BUCK5DVS1;
if (max8997->buck5_gpiodvs)
reg += max8997->buck125_gpioindex;
break;
case MAX8997_BUCK7:
reg = MAX8997_REG_BUCK7DVS;
break;
case MAX8997_ESAFEOUT1 ... MAX8997_ESAFEOUT2:
reg = MAX8997_REG_SAFEOUTCTRL;
shift = (rid == MAX8997_ESAFEOUT2) ? 2 : 0;
mask = 0x3;
break;
case MAX8997_CHARGER_CV:
reg = MAX8997_REG_MBCCTRL3;
shift = 0;
mask = 0xf;
break;
case MAX8997_CHARGER:
reg = MAX8997_REG_MBCCTRL4;
shift = 0;
mask = 0xf;
break;
case MAX8997_CHARGER_TOPOFF:
reg = MAX8997_REG_MBCCTRL5;
shift = 0;
mask = 0xf;
break;
default:
return -EINVAL;
}
*_reg = reg;
*_shift = shift;
*_mask = mask;
return 0;
}
static int max8997_get_voltage_sel(struct regulator_dev *rdev)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int reg, shift, mask, ret;
u8 val;
ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
ret = max8997_read_reg(i2c, reg, &val);
if (ret)
return ret;
val >>= shift;
val &= mask;
return val;
}
static inline int max8997_get_voltage_proper_val(
const struct voltage_map_desc *desc,
int min_vol, int max_vol)
{
int i;
if (desc == NULL)
return -EINVAL;
if (max_vol < desc->min || min_vol > desc->max)
return -EINVAL;
if (min_vol < desc->min)
min_vol = desc->min;
i = DIV_ROUND_UP(min_vol - desc->min, desc->step);
if (desc->min + desc->step * i > max_vol)
return -EINVAL;
return i;
}
static int max8997_set_voltage_charger_cv(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int rid = rdev_get_id(rdev);
int lb, ub;
int reg, shift = 0, mask, ret = 0;
u8 val = 0x0;
if (rid != MAX8997_CHARGER_CV)
return -EINVAL;
ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
if (max_uV < 4000000 || min_uV > 4350000)
return -EINVAL;
if (min_uV <= 4000000)
val = 0x1;
else if (min_uV <= 4200000 && max_uV >= 4200000)
val = 0x0;
else {
lb = (min_uV - 4000001) / 20000 + 2;
ub = (max_uV - 4000000) / 20000 + 1;
if (lb > ub)
return -EINVAL;
if (lb < 0xf)
val = lb;
else {
if (ub >= 0xf)
val = 0xf;
else
return -EINVAL;
}
}
*selector = val;
ret = max8997_update_reg(i2c, reg, val << shift, mask);
return ret;
}
/*
* For LDO1 ~ LDO21, BUCK1~5, BUCK7, CHARGER, CHARGER_TOPOFF
* BUCK1, 2, and 5 are available if they are not controlled by gpio
*/
static int max8997_set_voltage_ldobuck(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
const struct voltage_map_desc *desc;
int rid = rdev_get_id(rdev);
int i, reg, shift, mask, ret;
switch (rid) {
case MAX8997_LDO1 ... MAX8997_LDO21:
break;
case MAX8997_BUCK1 ... MAX8997_BUCK5:
break;
case MAX8997_BUCK6:
return -EINVAL;
case MAX8997_BUCK7:
break;
case MAX8997_CHARGER:
break;
case MAX8997_CHARGER_TOPOFF:
break;
default:
return -EINVAL;
}
desc = reg_voltage_map[rid];
i = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
if (i < 0)
return i;
ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
ret = max8997_update_reg(i2c, reg, i << shift, mask << shift);
*selector = i;
return ret;
}
static int max8997_set_voltage_buck_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev);
const struct voltage_map_desc *desc = reg_voltage_map[rid];
/* Delay is required only if the voltage is increasing */
if (old_selector >= new_selector)
return 0;
/* No need to delay if gpio_dvs_mode */
switch (rid) {
case MAX8997_BUCK1:
if (max8997->buck1_gpiodvs)
return 0;
break;
case MAX8997_BUCK2:
if (max8997->buck2_gpiodvs)
return 0;
break;
case MAX8997_BUCK5:
if (max8997->buck5_gpiodvs)
return 0;
break;
}
switch (rid) {
case MAX8997_BUCK1:
case MAX8997_BUCK2:
case MAX8997_BUCK4:
case MAX8997_BUCK5:
return DIV_ROUND_UP(desc->step * (new_selector - old_selector),
max8997->ramp_delay * 1000);
}
return 0;
}
/*
* Assess the damage on the voltage setting of BUCK1,2,5 by the change.
*
* When GPIO-DVS mode is used for multiple bucks, changing the voltage value
* of one of the bucks may affect that of another buck, which is the side
* effect of the change (set_voltage). This function examines the GPIO-DVS
* configurations and checks whether such side-effect exists.
*/
static int max8997_assess_side_effect(struct regulator_dev *rdev,
u8 new_val, int *best)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev);
u8 *buckx_val[3];
bool buckx_gpiodvs[3];
int side_effect[8];
int min_side_effect = INT_MAX;
int i;
*best = -1;
switch (rid) {
case MAX8997_BUCK1:
rid = 0;
break;
case MAX8997_BUCK2:
rid = 1;
break;
case MAX8997_BUCK5:
rid = 2;
break;
default:
return -EINVAL;
}
buckx_val[0] = max8997->buck1_vol;
buckx_val[1] = max8997->buck2_vol;
buckx_val[2] = max8997->buck5_vol;
buckx_gpiodvs[0] = max8997->buck1_gpiodvs;
buckx_gpiodvs[1] = max8997->buck2_gpiodvs;
buckx_gpiodvs[2] = max8997->buck5_gpiodvs;
for (i = 0; i < 8; i++) {
int others;
if (new_val != (buckx_val[rid])[i]) {
side_effect[i] = -1;
continue;
}
side_effect[i] = 0;
for (others = 0; others < 3; others++) {
int diff;
if (others == rid)
continue;
if (buckx_gpiodvs[others] == false)
continue; /* Not affected */
diff = (buckx_val[others])[i] -
(buckx_val[others])[max8997->buck125_gpioindex];
if (diff > 0)
side_effect[i] += diff;
else if (diff < 0)
side_effect[i] -= diff;
}
if (side_effect[i] == 0) {
*best = i;
return 0; /* NO SIDE EFFECT! Use This! */
}
if (side_effect[i] < min_side_effect) {
min_side_effect = side_effect[i];
*best = i;
}
}
if (*best == -1)
return -EINVAL;
return side_effect[*best];
}
/*
* For Buck 1 ~ 5 and 7. If it is not controlled by GPIO, this calls
* max8997_set_voltage_ldobuck to do the job.
*/
static int max8997_set_voltage_buck(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev);
const struct voltage_map_desc *desc;
int new_val, new_idx, damage, tmp_val, tmp_idx, tmp_dmg;
bool gpio_dvs_mode = false;
if (rid < MAX8997_BUCK1 || rid > MAX8997_BUCK7)
return -EINVAL;
switch (rid) {
case MAX8997_BUCK1:
if (max8997->buck1_gpiodvs)
gpio_dvs_mode = true;
break;
case MAX8997_BUCK2:
if (max8997->buck2_gpiodvs)
gpio_dvs_mode = true;
break;
case MAX8997_BUCK5:
if (max8997->buck5_gpiodvs)
gpio_dvs_mode = true;
break;
}
if (!gpio_dvs_mode)
return max8997_set_voltage_ldobuck(rdev, min_uV, max_uV,
selector);
desc = reg_voltage_map[rid];
new_val = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
if (new_val < 0)
return new_val;
tmp_dmg = INT_MAX;
tmp_idx = -1;
tmp_val = -1;
do {
damage = max8997_assess_side_effect(rdev, new_val, &new_idx);
if (damage == 0)
goto out;
if (tmp_dmg > damage) {
tmp_idx = new_idx;
tmp_val = new_val;
tmp_dmg = damage;
}
new_val++;
} while (desc->min + desc->step * new_val <= desc->max);
new_idx = tmp_idx;
new_val = tmp_val;
if (max8997->ignore_gpiodvs_side_effect == false)
return -EINVAL;
dev_warn(&rdev->dev,
"MAX8997 GPIO-DVS Side Effect Warning: GPIO SET: %d -> %d\n",
max8997->buck125_gpioindex, tmp_idx);
out:
if (new_idx < 0 || new_val < 0)
return -EINVAL;
max8997->buck125_gpioindex = new_idx;
max8997_set_gpio(max8997);
*selector = new_val;
return 0;
}
/* For SAFEOUT1 and SAFEOUT2 */
static int max8997_set_voltage_safeout_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int rid = rdev_get_id(rdev);
int reg, shift = 0, mask, ret;
if (rid != MAX8997_ESAFEOUT1 && rid != MAX8997_ESAFEOUT2)
return -EINVAL;
ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
return max8997_update_reg(i2c, reg, selector << shift, mask << shift);
}
static int max8997_reg_disable_suspend(struct regulator_dev *rdev)
{
struct max8997_data *max8997 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8997->iodev->i2c;
int ret, reg, mask, pattern;
int rid = rdev_get_id(rdev);
ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
if (ret)
return ret;
max8997_read_reg(i2c, reg, &max8997->saved_states[rid]);
if (rid == MAX8997_LDO1 ||
rid == MAX8997_LDO10 ||
rid == MAX8997_LDO21) {
dev_dbg(&rdev->dev, "Conditional Power-Off for %s\n",
rdev->desc->name);
return max8997_update_reg(i2c, reg, 0x40, mask);
}
dev_dbg(&rdev->dev, "Full Power-Off for %s (%xh -> %xh)\n",
rdev->desc->name, max8997->saved_states[rid] & mask,
(~pattern) & mask);
return max8997_update_reg(i2c, reg, ~pattern, mask);
}
static const struct regulator_ops max8997_ldo_ops = {
.list_voltage = max8997_list_voltage,
.is_enabled = max8997_reg_is_enabled,
.enable = max8997_reg_enable,
.disable = max8997_reg_disable,
.get_voltage_sel = max8997_get_voltage_sel,
.set_voltage = max8997_set_voltage_ldobuck,
.set_suspend_disable = max8997_reg_disable_suspend,
};
static const struct regulator_ops max8997_buck_ops = {
.list_voltage = max8997_list_voltage,
.is_enabled = max8997_reg_is_enabled,
.enable = max8997_reg_enable,
.disable = max8997_reg_disable,
.get_voltage_sel = max8997_get_voltage_sel,
.set_voltage = max8997_set_voltage_buck,
.set_voltage_time_sel = max8997_set_voltage_buck_time_sel,
.set_suspend_disable = max8997_reg_disable_suspend,
};
static const struct regulator_ops max8997_fixedvolt_ops = {
.list_voltage = max8997_list_voltage,
.is_enabled = max8997_reg_is_enabled,
.enable = max8997_reg_enable,
.disable = max8997_reg_disable,
.set_suspend_disable = max8997_reg_disable_suspend,
};
static const struct regulator_ops max8997_safeout_ops = {
.list_voltage = regulator_list_voltage_table,
.is_enabled = max8997_reg_is_enabled,
.enable = max8997_reg_enable,
.disable = max8997_reg_disable,
.get_voltage_sel = max8997_get_voltage_sel,
.set_voltage_sel = max8997_set_voltage_safeout_sel,
.set_suspend_disable = max8997_reg_disable_suspend,
};
static const struct regulator_ops max8997_fixedstate_ops = {
.list_voltage = max8997_list_voltage_charger_cv,
.get_voltage_sel = max8997_get_voltage_sel,
.set_voltage = max8997_set_voltage_charger_cv,
};
static int max8997_set_current_limit(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
unsigned dummy;
int rid = rdev_get_id(rdev);
if (rid != MAX8997_CHARGER && rid != MAX8997_CHARGER_TOPOFF)
return -EINVAL;
/* Reuse max8997_set_voltage_ldobuck to set current_limit. */
return max8997_set_voltage_ldobuck(rdev, min_uA, max_uA, &dummy);
}
static int max8997_get_current_limit(struct regulator_dev *rdev)
{
int sel, rid = rdev_get_id(rdev);
if (rid != MAX8997_CHARGER && rid != MAX8997_CHARGER_TOPOFF)
return -EINVAL;
sel = max8997_get_voltage_sel(rdev);
if (sel < 0)
return sel;
/* Reuse max8997_list_voltage to get current_limit. */
return max8997_list_voltage(rdev, sel);
}
static const struct regulator_ops max8997_charger_ops = {
.is_enabled = max8997_reg_is_enabled,
.enable = max8997_reg_enable,
.disable = max8997_reg_disable,
.get_current_limit = max8997_get_current_limit,
.set_current_limit = max8997_set_current_limit,
};
static const struct regulator_ops max8997_charger_fixedstate_ops = {
.get_current_limit = max8997_get_current_limit,
.set_current_limit = max8997_set_current_limit,
};
#define MAX8997_VOLTAGE_REGULATOR(_name, _ops) {\
.name = #_name, \
.id = MAX8997_##_name, \
.ops = &_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
#define MAX8997_CURRENT_REGULATOR(_name, _ops) {\
.name = #_name, \
.id = MAX8997_##_name, \
.ops = &_ops, \
.type = REGULATOR_CURRENT, \
.owner = THIS_MODULE, \
}
static struct regulator_desc regulators[] = {
MAX8997_VOLTAGE_REGULATOR(LDO1, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO2, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO3, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO4, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO5, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO6, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO7, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO8, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO9, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO10, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO11, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO12, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO13, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO14, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO15, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO16, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO17, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO18, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(LDO21, max8997_ldo_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK1, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK2, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK3, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK4, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK5, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK6, max8997_fixedvolt_ops),
MAX8997_VOLTAGE_REGULATOR(BUCK7, max8997_buck_ops),
MAX8997_VOLTAGE_REGULATOR(EN32KHZ_AP, max8997_fixedvolt_ops),
MAX8997_VOLTAGE_REGULATOR(EN32KHZ_CP, max8997_fixedvolt_ops),
MAX8997_VOLTAGE_REGULATOR(ENVICHG, max8997_fixedvolt_ops),
MAX8997_VOLTAGE_REGULATOR(ESAFEOUT1, max8997_safeout_ops),
MAX8997_VOLTAGE_REGULATOR(ESAFEOUT2, max8997_safeout_ops),
MAX8997_VOLTAGE_REGULATOR(CHARGER_CV, max8997_fixedstate_ops),
MAX8997_CURRENT_REGULATOR(CHARGER, max8997_charger_ops),
MAX8997_CURRENT_REGULATOR(CHARGER_TOPOFF,
max8997_charger_fixedstate_ops),
};
#ifdef CONFIG_OF
static int max8997_pmic_dt_parse_dvs_gpio(struct platform_device *pdev,
struct max8997_platform_data *pdata,
struct device_node *pmic_np)
{
int i, gpio;
for (i = 0; i < 3; i++) {
gpio = of_get_named_gpio(pmic_np,
"max8997,pmic-buck125-dvs-gpios", i);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "invalid gpio[%d]: %d\n", i, gpio);
return -EINVAL;
}
pdata->buck125_gpios[i] = gpio;
}
return 0;
}
static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
struct max8997_platform_data *pdata)
{
struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct device_node *pmic_np, *regulators_np, *reg_np;
struct max8997_regulator_data *rdata;
unsigned int i, dvs_voltage_nr = 1, ret;
pmic_np = iodev->dev->of_node;
if (!pmic_np) {
dev_err(&pdev->dev, "could not find pmic sub-node\n");
return -ENODEV;
}
regulators_np = of_get_child_by_name(pmic_np, "regulators");
if (!regulators_np) {
dev_err(&pdev->dev, "could not find regulators sub-node\n");
return -EINVAL;
}
/* count the number of regulators to be supported in pmic */
pdata->num_regulators = of_get_child_count(regulators_np);
rdata = devm_kcalloc(&pdev->dev,
pdata->num_regulators, sizeof(*rdata),
GFP_KERNEL);
if (!rdata) {
of_node_put(regulators_np);
return -ENOMEM;
}
pdata->regulators = rdata;
for_each_child_of_node(regulators_np, reg_np) {
for (i = 0; i < ARRAY_SIZE(regulators); i++)
if (of_node_name_eq(reg_np, regulators[i].name))
break;
if (i == ARRAY_SIZE(regulators)) {
dev_warn(&pdev->dev, "don't know how to configure regulator %pOFn\n",
reg_np);
continue;
}
rdata->id = i;
rdata->initdata = of_get_regulator_init_data(&pdev->dev,
reg_np,
®ulators[i]);
rdata->reg_node = reg_np;
rdata++;
}
of_node_put(regulators_np);
pdata->buck1_gpiodvs = of_property_read_bool(pmic_np, "max8997,pmic-buck1-uses-gpio-dvs");
pdata->buck2_gpiodvs = of_property_read_bool(pmic_np, "max8997,pmic-buck2-uses-gpio-dvs");
pdata->buck5_gpiodvs = of_property_read_bool(pmic_np, "max8997,pmic-buck5-uses-gpio-dvs");
if (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
pdata->buck5_gpiodvs) {
ret = max8997_pmic_dt_parse_dvs_gpio(pdev, pdata, pmic_np);
if (ret)
return -EINVAL;
if (of_property_read_u32(pmic_np,
"max8997,pmic-buck125-default-dvs-idx",
&pdata->buck125_default_idx)) {
pdata->buck125_default_idx = 0;
} else {
if (pdata->buck125_default_idx >= 8) {
pdata->buck125_default_idx = 0;
dev_info(&pdev->dev, "invalid value for default dvs index, using 0 instead\n");
}
}
if (of_get_property(pmic_np,
"max8997,pmic-ignore-gpiodvs-side-effect", NULL))
pdata->ignore_gpiodvs_side_effect = true;
dvs_voltage_nr = 8;
}
if (of_property_read_u32_array(pmic_np,
"max8997,pmic-buck1-dvs-voltage",
pdata->buck1_voltage, dvs_voltage_nr)) {
dev_err(&pdev->dev, "buck1 voltages not specified\n");
return -EINVAL;
}
if (of_property_read_u32_array(pmic_np,
"max8997,pmic-buck2-dvs-voltage",
pdata->buck2_voltage, dvs_voltage_nr)) {
dev_err(&pdev->dev, "buck2 voltages not specified\n");
return -EINVAL;
}
if (of_property_read_u32_array(pmic_np,
"max8997,pmic-buck5-dvs-voltage",
pdata->buck5_voltage, dvs_voltage_nr)) {
dev_err(&pdev->dev, "buck5 voltages not specified\n");
return -EINVAL;
}
return 0;
}
#else
static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
struct max8997_platform_data *pdata)
{
return 0;
}
#endif /* CONFIG_OF */
static int max8997_pmic_probe(struct platform_device *pdev)
{
struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max8997_platform_data *pdata = iodev->pdata;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct max8997_data *max8997;
struct i2c_client *i2c;
int i, ret, nr_dvs;
u8 max_buck1 = 0, max_buck2 = 0, max_buck5 = 0;
if (!pdata) {
dev_err(&pdev->dev, "No platform init data supplied.\n");
return -ENODEV;
}
if (iodev->dev->of_node) {
ret = max8997_pmic_dt_parse_pdata(pdev, pdata);
if (ret)
return ret;
}
max8997 = devm_kzalloc(&pdev->dev, sizeof(struct max8997_data),
GFP_KERNEL);
if (!max8997)
return -ENOMEM;
max8997->dev = &pdev->dev;
max8997->iodev = iodev;
max8997->num_regulators = pdata->num_regulators;
platform_set_drvdata(pdev, max8997);
i2c = max8997->iodev->i2c;
max8997->buck125_gpioindex = pdata->buck125_default_idx;
max8997->buck1_gpiodvs = pdata->buck1_gpiodvs;
max8997->buck2_gpiodvs = pdata->buck2_gpiodvs;
max8997->buck5_gpiodvs = pdata->buck5_gpiodvs;
memcpy(max8997->buck125_gpios, pdata->buck125_gpios, sizeof(int) * 3);
max8997->ignore_gpiodvs_side_effect = pdata->ignore_gpiodvs_side_effect;
nr_dvs = (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
pdata->buck5_gpiodvs) ? 8 : 1;
for (i = 0; i < nr_dvs; i++) {
max8997->buck1_vol[i] = ret =
max8997_get_voltage_proper_val(
&buck1245_voltage_map_desc,
pdata->buck1_voltage[i],
pdata->buck1_voltage[i] +
buck1245_voltage_map_desc.step);
if (ret < 0)
return ret;
max8997->buck2_vol[i] = ret =
max8997_get_voltage_proper_val(
&buck1245_voltage_map_desc,
pdata->buck2_voltage[i],
pdata->buck2_voltage[i] +
buck1245_voltage_map_desc.step);
if (ret < 0)
return ret;
max8997->buck5_vol[i] = ret =
max8997_get_voltage_proper_val(
&buck1245_voltage_map_desc,
pdata->buck5_voltage[i],
pdata->buck5_voltage[i] +
buck1245_voltage_map_desc.step);
if (ret < 0)
return ret;
if (max_buck1 < max8997->buck1_vol[i])
max_buck1 = max8997->buck1_vol[i];
if (max_buck2 < max8997->buck2_vol[i])
max_buck2 = max8997->buck2_vol[i];
if (max_buck5 < max8997->buck5_vol[i])
max_buck5 = max8997->buck5_vol[i];
}
/* For the safety, set max voltage before setting up */
for (i = 0; i < 8; i++) {
max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
max_buck1, 0x3f);
max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
max_buck2, 0x3f);
max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
max_buck5, 0x3f);
}
/* Initialize all the DVS related BUCK registers */
for (i = 0; i < nr_dvs; i++) {
max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
max8997->buck1_vol[i],
0x3f);
max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
max8997->buck2_vol[i],
0x3f);
max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
max8997->buck5_vol[i],
0x3f);
}
/*
* If buck 1, 2, and 5 do not care DVS GPIO settings, ignore them.
* If at least one of them cares, set gpios.
*/
if (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
pdata->buck5_gpiodvs) {
if (!gpio_is_valid(pdata->buck125_gpios[0]) ||
!gpio_is_valid(pdata->buck125_gpios[1]) ||
!gpio_is_valid(pdata->buck125_gpios[2])) {
dev_err(&pdev->dev, "GPIO NOT VALID\n");
return -EINVAL;
}
ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[0],
"MAX8997 SET1");
if (ret)
return ret;
ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[1],
"MAX8997 SET2");
if (ret)
return ret;
ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[2],
"MAX8997 SET3");
if (ret)
return ret;
gpio_direction_output(pdata->buck125_gpios[0],
(max8997->buck125_gpioindex >> 2)
& 0x1); /* SET1 */
gpio_direction_output(pdata->buck125_gpios[1],
(max8997->buck125_gpioindex >> 1)
& 0x1); /* SET2 */
gpio_direction_output(pdata->buck125_gpios[2],
(max8997->buck125_gpioindex >> 0)
& 0x1); /* SET3 */
}
/* DVS-GPIO disabled */
max8997_update_reg(i2c, MAX8997_REG_BUCK1CTRL, (pdata->buck1_gpiodvs) ?
(1 << 1) : (0 << 1), 1 << 1);
max8997_update_reg(i2c, MAX8997_REG_BUCK2CTRL, (pdata->buck2_gpiodvs) ?
(1 << 1) : (0 << 1), 1 << 1);
max8997_update_reg(i2c, MAX8997_REG_BUCK5CTRL, (pdata->buck5_gpiodvs) ?
(1 << 1) : (0 << 1), 1 << 1);
/* Misc Settings */
max8997->ramp_delay = 10; /* set 10mV/us, which is the default */
max8997_write_reg(i2c, MAX8997_REG_BUCKRAMP, (0xf << 4) | 0x9);
for (i = 0; i < pdata->num_regulators; i++) {
const struct voltage_map_desc *desc;
int id = pdata->regulators[i].id;
desc = reg_voltage_map[id];
if (desc) {
regulators[id].n_voltages =
(desc->max - desc->min) / desc->step + 1;
} else if (id == MAX8997_ESAFEOUT1 || id == MAX8997_ESAFEOUT2) {
regulators[id].volt_table = safeoutvolt;
regulators[id].n_voltages = ARRAY_SIZE(safeoutvolt);
} else if (id == MAX8997_CHARGER_CV) {
regulators[id].n_voltages = 16;
}
config.dev = max8997->dev;
config.init_data = pdata->regulators[i].initdata;
config.driver_data = max8997;
config.of_node = pdata->regulators[i].reg_node;
rdev = devm_regulator_register(&pdev->dev, ®ulators[id],
&config);
if (IS_ERR(rdev)) {
dev_err(max8997->dev, "regulator init failed for %d\n",
id);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id max8997_pmic_id[] = {
{ "max8997-pmic", 0},
{ },
};
MODULE_DEVICE_TABLE(platform, max8997_pmic_id);
static struct platform_driver max8997_pmic_driver = {
.driver = {
.name = "max8997-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max8997_pmic_probe,
.id_table = max8997_pmic_id,
};
static int __init max8997_pmic_init(void)
{
return platform_driver_register(&max8997_pmic_driver);
}
subsys_initcall(max8997_pmic_init);
static void __exit max8997_pmic_cleanup(void)
{
platform_driver_unregister(&max8997_pmic_driver);
}
module_exit(max8997_pmic_cleanup);
MODULE_DESCRIPTION("MAXIM 8997/8966 Regulator Driver");
MODULE_AUTHOR("MyungJoo Ham <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max8997-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* tps65218-regulator.c
*
* Regulator driver for TPS65218 PMIC
*
* Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
*/
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65218.h>
#define TPS65218_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
_em, _cr, _cm, _lr, _nlr, _delay, _fuv, _sr, _sm, \
_ct, _ncl) \
{ \
.name = _name, \
.of_match = _of, \
.id = _id, \
.ops = &_ops, \
.n_voltages = _n, \
.type = _type, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = _vm, \
.csel_reg = _cr, \
.csel_mask = _cm, \
.curr_table = _ct, \
.n_current_limits = _ncl, \
.enable_reg = _er, \
.enable_mask = _em, \
.volt_table = NULL, \
.linear_ranges = _lr, \
.n_linear_ranges = _nlr, \
.ramp_delay = _delay, \
.fixed_uV = _fuv, \
.bypass_reg = _sr, \
.bypass_mask = _sm, \
} \
static const struct linear_range dcdc1_dcdc2_ranges[] = {
REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
};
static const struct linear_range ldo1_dcdc3_ranges[] = {
REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
};
static const struct linear_range dcdc4_ranges[] = {
REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
};
static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
int ret;
struct tps65218 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
/* Set the voltage based on vsel value and write protect level is 2 */
ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
selector, TPS65218_PROTECT_L1);
/* Set GO bit for DCDC1/2 to initiate voltage transistion */
switch (rid) {
case TPS65218_DCDC_1:
case TPS65218_DCDC_2:
ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
TPS65218_SLEW_RATE_GO,
TPS65218_SLEW_RATE_GO,
TPS65218_PROTECT_L1);
break;
}
return ret;
}
static int tps65218_pmic_enable(struct regulator_dev *dev)
{
struct tps65218 *tps = rdev_get_drvdata(dev);
int rid = rdev_get_id(dev);
if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
return -EINVAL;
/* Enable the regulator and password protection is level 1 */
return tps65218_set_bits(tps, dev->desc->enable_reg,
dev->desc->enable_mask, dev->desc->enable_mask,
TPS65218_PROTECT_L1);
}
static int tps65218_pmic_disable(struct regulator_dev *dev)
{
struct tps65218 *tps = rdev_get_drvdata(dev);
int rid = rdev_get_id(dev);
if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
return -EINVAL;
/* Disable the regulator and password protection is level 1 */
return tps65218_clear_bits(tps, dev->desc->enable_reg,
dev->desc->enable_mask, TPS65218_PROTECT_L1);
}
static int tps65218_pmic_set_suspend_enable(struct regulator_dev *dev)
{
struct tps65218 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
if (rid > TPS65218_LDO_1)
return -EINVAL;
return tps65218_clear_bits(tps, dev->desc->bypass_reg,
dev->desc->bypass_mask,
TPS65218_PROTECT_L1);
}
static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
{
struct tps65218 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
if (rid > TPS65218_LDO_1)
return -EINVAL;
/*
* Certain revisions of TPS65218 will need to have DCDC3 regulator
* enabled always, otherwise an immediate system reboot will occur
* during poweroff.
*/
if (rid == TPS65218_DCDC_3 && tps->rev == TPS65218_REV_2_1)
return 0;
if (!tps->strobes[rid]) {
if (rid == TPS65218_DCDC_3)
tps->strobes[rid] = 3;
else
return -EINVAL;
}
return tps65218_set_bits(tps, dev->desc->bypass_reg,
dev->desc->bypass_mask,
tps->strobes[rid], TPS65218_PROTECT_L1);
}
/* Operations permitted on DCDC1, DCDC2 */
static const struct regulator_ops tps65218_dcdc12_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = tps65218_pmic_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_suspend_enable = tps65218_pmic_set_suspend_enable,
.set_suspend_disable = tps65218_pmic_set_suspend_disable,
};
/* Operations permitted on DCDC3, DCDC4 and LDO1 */
static const struct regulator_ops tps65218_ldo1_dcdc34_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = tps65218_pmic_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_suspend_enable = tps65218_pmic_set_suspend_enable,
.set_suspend_disable = tps65218_pmic_set_suspend_disable,
};
static const unsigned int ls3_currents[] = { 100000, 200000, 500000, 1000000 };
static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
int lim_uA)
{
unsigned int index = 0;
unsigned int num_currents = ARRAY_SIZE(ls3_currents);
struct tps65218 *tps = rdev_get_drvdata(dev);
while (index < num_currents && ls3_currents[index] != lim_uA)
index++;
if (index == num_currents)
return -EINVAL;
return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
index << __builtin_ctz(dev->desc->csel_mask),
TPS65218_PROTECT_L1);
}
static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
int min_uA, int max_uA)
{
int index = 0;
unsigned int num_currents = ARRAY_SIZE(ls3_currents);
struct tps65218 *tps = rdev_get_drvdata(dev);
while (index < num_currents && ls3_currents[index] <= max_uA)
index++;
index--;
if (index < 0 || ls3_currents[index] < min_uA)
return -EINVAL;
return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
index << __builtin_ctz(dev->desc->csel_mask),
TPS65218_PROTECT_L1);
}
static const struct regulator_ops tps65218_ls23_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
.set_input_current_limit = tps65218_pmic_set_input_current_lim,
.set_current_limit = tps65218_pmic_set_current_limit,
.get_current_limit = regulator_get_current_limit_regmap,
};
/* Operations permitted on DCDC5, DCDC6 */
static const struct regulator_ops tps65218_dcdc56_pmic_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
.set_suspend_enable = tps65218_pmic_set_suspend_enable,
.set_suspend_disable = tps65218_pmic_set_suspend_disable,
};
static const struct regulator_desc regulators[] = {
TPS65218_REGULATOR("DCDC1", "regulator-dcdc1", TPS65218_DCDC_1,
REGULATOR_VOLTAGE, tps65218_dcdc12_ops, 64,
TPS65218_REG_CONTROL_DCDC1,
TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
2, 4000, 0, TPS65218_REG_SEQ3,
TPS65218_SEQ3_DC1_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC2", "regulator-dcdc2", TPS65218_DCDC_2,
REGULATOR_VOLTAGE, tps65218_dcdc12_ops, 64,
TPS65218_REG_CONTROL_DCDC2,
TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
2, 4000, 0, TPS65218_REG_SEQ3,
TPS65218_SEQ3_DC2_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC3", "regulator-dcdc3", TPS65218_DCDC_3,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
TPS65218_REG_CONTROL_DCDC3,
TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK,
NULL, 0),
TPS65218_REGULATOR("DCDC4", "regulator-dcdc4", TPS65218_DCDC_4,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 53,
TPS65218_REG_CONTROL_DCDC4,
TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK,
NULL, 0),
TPS65218_REGULATOR("DCDC5", "regulator-dcdc5", TPS65218_DCDC_5,
REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
-1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0,
0, NULL, 0, 0, 1000000, TPS65218_REG_SEQ5,
TPS65218_SEQ5_DC5_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC6", "regulator-dcdc6", TPS65218_DCDC_6,
REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
-1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0,
0, NULL, 0, 0, 1800000, TPS65218_REG_SEQ5,
TPS65218_SEQ5_DC6_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("LDO1", "regulator-ldo1", TPS65218_LDO_1,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
TPS65218_REG_CONTROL_LDO1,
TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
2, 0, 0, TPS65218_REG_SEQ6,
TPS65218_SEQ6_LDO1_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("LS2", "regulator-ls2", TPS65218_LS_2,
REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS2_EN,
TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS2ILIM_MASK,
NULL, 0, 0, 0, 0, 0, ls3_currents,
ARRAY_SIZE(ls3_currents)),
TPS65218_REGULATOR("LS3", "regulator-ls3", TPS65218_LS_3,
REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS3_EN,
TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS3ILIM_MASK,
NULL, 0, 0, 0, 0, 0, ls3_currents,
ARRAY_SIZE(ls3_currents)),
};
static int tps65218_regulator_probe(struct platform_device *pdev)
{
struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_dev *rdev;
struct regulator_config config = { };
int i, ret;
unsigned int val;
config.dev = &pdev->dev;
config.dev->of_node = tps->dev->of_node;
config.driver_data = tps;
config.regmap = tps->regmap;
/* Allocate memory for strobes */
tps->strobes = devm_kcalloc(&pdev->dev,
TPS65218_NUM_REGULATOR, sizeof(u8),
GFP_KERNEL);
if (!tps->strobes)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "failed to register %s regulator\n",
pdev->name);
return PTR_ERR(rdev);
}
ret = regmap_read(tps->regmap, regulators[i].bypass_reg, &val);
if (ret)
return ret;
tps->strobes[i] = val & regulators[i].bypass_mask;
}
return 0;
}
static const struct platform_device_id tps65218_regulator_id_table[] = {
{ "tps65218-regulator", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, tps65218_regulator_id_table);
static struct platform_driver tps65218_regulator_driver = {
.driver = {
.name = "tps65218-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65218_regulator_probe,
.id_table = tps65218_regulator_id_table,
};
module_platform_driver(tps65218_regulator_driver);
MODULE_AUTHOR("J Keerthy <[email protected]>");
MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
MODULE_ALIAS("platform:tps65218-pmic");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/tps65218-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (C) 2019 ROHM Semiconductors
// bd71828-regulator.c ROHM BD71828GW-DS1 regulator driver
//
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/rohm-bd71828.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
struct reg_init {
unsigned int reg;
unsigned int mask;
unsigned int val;
};
struct bd71828_regulator_data {
struct regulator_desc desc;
const struct rohm_dvs_config dvs;
const struct reg_init *reg_inits;
int reg_init_amnt;
};
static const struct reg_init buck1_inits[] = {
/*
* DVS Buck voltages can be changed by register values or via GPIO.
* Use register accesses by default.
*/
{
.reg = BD71828_REG_PS_CTRL_1,
.mask = BD71828_MASK_DVS_BUCK1_CTRL,
.val = BD71828_DVS_BUCK1_CTRL_I2C,
},
};
static const struct reg_init buck2_inits[] = {
{
.reg = BD71828_REG_PS_CTRL_1,
.mask = BD71828_MASK_DVS_BUCK2_CTRL,
.val = BD71828_DVS_BUCK2_CTRL_I2C,
},
};
static const struct reg_init buck6_inits[] = {
{
.reg = BD71828_REG_PS_CTRL_1,
.mask = BD71828_MASK_DVS_BUCK6_CTRL,
.val = BD71828_DVS_BUCK6_CTRL_I2C,
},
};
static const struct reg_init buck7_inits[] = {
{
.reg = BD71828_REG_PS_CTRL_1,
.mask = BD71828_MASK_DVS_BUCK7_CTRL,
.val = BD71828_DVS_BUCK7_CTRL_I2C,
},
};
static const struct linear_range bd71828_buck1267_volts[] = {
REGULATOR_LINEAR_RANGE(500000, 0x00, 0xef, 6250),
REGULATOR_LINEAR_RANGE(2000000, 0xf0, 0xff, 0),
};
static const struct linear_range bd71828_buck3_volts[] = {
REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x0f, 50000),
REGULATOR_LINEAR_RANGE(2000000, 0x10, 0x1f, 0),
};
static const struct linear_range bd71828_buck4_volts[] = {
REGULATOR_LINEAR_RANGE(1000000, 0x00, 0x1f, 25000),
REGULATOR_LINEAR_RANGE(1800000, 0x20, 0x3f, 0),
};
static const struct linear_range bd71828_buck5_volts[] = {
REGULATOR_LINEAR_RANGE(2500000, 0x00, 0x0f, 50000),
REGULATOR_LINEAR_RANGE(3300000, 0x10, 0x1f, 0),
};
static const struct linear_range bd71828_ldo_volts[] = {
REGULATOR_LINEAR_RANGE(800000, 0x00, 0x31, 50000),
REGULATOR_LINEAR_RANGE(3300000, 0x32, 0x3f, 0),
};
static const unsigned int bd71828_ramp_delay[] = { 2500, 5000, 10000, 20000 };
static int buck_set_hw_dvs_levels(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct bd71828_regulator_data *data;
data = container_of(desc, struct bd71828_regulator_data, desc);
return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap);
}
static int ldo6_parse_dt(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
int ret, i;
uint32_t uv = 0;
unsigned int en;
struct regmap *regmap = cfg->regmap;
static const char * const props[] = { "rohm,dvs-run-voltage",
"rohm,dvs-idle-voltage",
"rohm,dvs-suspend-voltage",
"rohm,dvs-lpsr-voltage" };
unsigned int mask[] = { BD71828_MASK_RUN_EN, BD71828_MASK_IDLE_EN,
BD71828_MASK_SUSP_EN, BD71828_MASK_LPSR_EN };
for (i = 0; i < ARRAY_SIZE(props); i++) {
ret = of_property_read_u32(np, props[i], &uv);
if (ret) {
if (ret != -EINVAL)
return ret;
continue;
}
if (uv)
en = 0xffffffff;
else
en = 0;
ret = regmap_update_bits(regmap, desc->enable_reg, mask[i], en);
if (ret)
return ret;
}
return 0;
}
static const struct regulator_ops bd71828_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd71828_dvs_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
};
static const struct regulator_ops bd71828_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd71828_ldo6_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct bd71828_regulator_data bd71828_rdata[] = {
{
.desc = {
.name = "buck1",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK1,
.ops = &bd71828_dvs_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck1267_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts),
.n_voltages = BD71828_BUCK1267_VOLTS,
.enable_reg = BD71828_REG_BUCK1_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK1_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
.ramp_delay_table = bd71828_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
.ramp_reg = BD71828_REG_BUCK1_MODE,
.ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK1_VOLT,
.run_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_reg = BD71828_REG_BUCK1_IDLE_VOLT,
.idle_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_reg = BD71828_REG_BUCK1_SUSP_VOLT,
.suspend_mask = BD71828_MASK_BUCK1267_VOLT,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
/*
* LPSR voltage is same as SUSPEND voltage. Allow
* setting it so that regulator can be set enabled at
* LPSR state
*/
.lpsr_reg = BD71828_REG_BUCK1_SUSP_VOLT,
.lpsr_mask = BD71828_MASK_BUCK1267_VOLT,
},
.reg_inits = buck1_inits,
.reg_init_amnt = ARRAY_SIZE(buck1_inits),
},
{
.desc = {
.name = "buck2",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK2,
.ops = &bd71828_dvs_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck1267_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts),
.n_voltages = BD71828_BUCK1267_VOLTS,
.enable_reg = BD71828_REG_BUCK2_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK2_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
.ramp_delay_table = bd71828_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
.ramp_reg = BD71828_REG_BUCK2_MODE,
.ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK2_VOLT,
.run_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_reg = BD71828_REG_BUCK2_IDLE_VOLT,
.idle_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_reg = BD71828_REG_BUCK2_SUSP_VOLT,
.suspend_mask = BD71828_MASK_BUCK1267_VOLT,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
.lpsr_reg = BD71828_REG_BUCK2_SUSP_VOLT,
.lpsr_mask = BD71828_MASK_BUCK1267_VOLT,
},
.reg_inits = buck2_inits,
.reg_init_amnt = ARRAY_SIZE(buck2_inits),
},
{
.desc = {
.name = "buck3",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK3,
.ops = &bd71828_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck3_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck3_volts),
.n_voltages = BD71828_BUCK3_VOLTS,
.enable_reg = BD71828_REG_BUCK3_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK3_VOLT,
.vsel_mask = BD71828_MASK_BUCK3_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* BUCK3 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK3_VOLT,
.idle_reg = BD71828_REG_BUCK3_VOLT,
.suspend_reg = BD71828_REG_BUCK3_VOLT,
.lpsr_reg = BD71828_REG_BUCK3_VOLT,
.run_mask = BD71828_MASK_BUCK3_VOLT,
.idle_mask = BD71828_MASK_BUCK3_VOLT,
.suspend_mask = BD71828_MASK_BUCK3_VOLT,
.lpsr_mask = BD71828_MASK_BUCK3_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
},
{
.desc = {
.name = "buck4",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK4,
.ops = &bd71828_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck4_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck4_volts),
.n_voltages = BD71828_BUCK4_VOLTS,
.enable_reg = BD71828_REG_BUCK4_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK4_VOLT,
.vsel_mask = BD71828_MASK_BUCK4_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* BUCK4 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK4_VOLT,
.idle_reg = BD71828_REG_BUCK4_VOLT,
.suspend_reg = BD71828_REG_BUCK4_VOLT,
.lpsr_reg = BD71828_REG_BUCK4_VOLT,
.run_mask = BD71828_MASK_BUCK4_VOLT,
.idle_mask = BD71828_MASK_BUCK4_VOLT,
.suspend_mask = BD71828_MASK_BUCK4_VOLT,
.lpsr_mask = BD71828_MASK_BUCK4_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
},
{
.desc = {
.name = "buck5",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK5,
.ops = &bd71828_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck5_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck5_volts),
.n_voltages = BD71828_BUCK5_VOLTS,
.enable_reg = BD71828_REG_BUCK5_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK5_VOLT,
.vsel_mask = BD71828_MASK_BUCK5_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* BUCK5 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK5_VOLT,
.idle_reg = BD71828_REG_BUCK5_VOLT,
.suspend_reg = BD71828_REG_BUCK5_VOLT,
.lpsr_reg = BD71828_REG_BUCK5_VOLT,
.run_mask = BD71828_MASK_BUCK5_VOLT,
.idle_mask = BD71828_MASK_BUCK5_VOLT,
.suspend_mask = BD71828_MASK_BUCK5_VOLT,
.lpsr_mask = BD71828_MASK_BUCK5_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
},
{
.desc = {
.name = "buck6",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK6,
.ops = &bd71828_dvs_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck1267_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts),
.n_voltages = BD71828_BUCK1267_VOLTS,
.enable_reg = BD71828_REG_BUCK6_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK6_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
.ramp_delay_table = bd71828_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
.ramp_reg = BD71828_REG_BUCK6_MODE,
.ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK6_VOLT,
.run_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_reg = BD71828_REG_BUCK6_IDLE_VOLT,
.idle_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_reg = BD71828_REG_BUCK6_SUSP_VOLT,
.suspend_mask = BD71828_MASK_BUCK1267_VOLT,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
.lpsr_reg = BD71828_REG_BUCK6_SUSP_VOLT,
.lpsr_mask = BD71828_MASK_BUCK1267_VOLT,
},
.reg_inits = buck6_inits,
.reg_init_amnt = ARRAY_SIZE(buck6_inits),
},
{
.desc = {
.name = "buck7",
.of_match = of_match_ptr("BUCK7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_BUCK7,
.ops = &bd71828_dvs_buck_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_buck1267_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts),
.n_voltages = BD71828_BUCK1267_VOLTS,
.enable_reg = BD71828_REG_BUCK7_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_BUCK7_VOLT,
.vsel_mask = BD71828_MASK_BUCK1267_VOLT,
.ramp_delay_table = bd71828_ramp_delay,
.n_ramp_values = ARRAY_SIZE(bd71828_ramp_delay),
.ramp_reg = BD71828_REG_BUCK7_MODE,
.ramp_mask = BD71828_MASK_RAMP_DELAY,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_BUCK7_VOLT,
.run_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_reg = BD71828_REG_BUCK7_IDLE_VOLT,
.idle_mask = BD71828_MASK_BUCK1267_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_reg = BD71828_REG_BUCK7_SUSP_VOLT,
.suspend_mask = BD71828_MASK_BUCK1267_VOLT,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
.lpsr_reg = BD71828_REG_BUCK7_SUSP_VOLT,
.lpsr_mask = BD71828_MASK_BUCK1267_VOLT,
},
.reg_inits = buck7_inits,
.reg_init_amnt = ARRAY_SIZE(buck7_inits),
},
{
.desc = {
.name = "ldo1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO1,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO1_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO1_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* LDO1 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO1_VOLT,
.idle_reg = BD71828_REG_LDO1_VOLT,
.suspend_reg = BD71828_REG_LDO1_VOLT,
.lpsr_reg = BD71828_REG_LDO1_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
}, {
.desc = {
.name = "ldo2",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO2,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO2_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO2_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* LDO2 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO2_VOLT,
.idle_reg = BD71828_REG_LDO2_VOLT,
.suspend_reg = BD71828_REG_LDO2_VOLT,
.lpsr_reg = BD71828_REG_LDO2_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
}, {
.desc = {
.name = "ldo3",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO3,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO3_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO3_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* LDO3 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO3_VOLT,
.idle_reg = BD71828_REG_LDO3_VOLT,
.suspend_reg = BD71828_REG_LDO3_VOLT,
.lpsr_reg = BD71828_REG_LDO3_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
}, {
.desc = {
.name = "ldo4",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO4,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO4_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO4_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* LDO1 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO4_VOLT,
.idle_reg = BD71828_REG_LDO4_VOLT,
.suspend_reg = BD71828_REG_LDO4_VOLT,
.lpsr_reg = BD71828_REG_LDO4_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
}, {
.desc = {
.name = "ldo5",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO5,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO5_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO5_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.of_parse_cb = buck_set_hw_dvs_levels,
.owner = THIS_MODULE,
},
/*
* LDO5 is special. It can choose vsel settings to be configured
* from 2 different registers (by GPIO).
*
* This driver supports only configuration where
* BD71828_REG_LDO5_VOLT_L is used.
*/
.dvs = {
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO5_VOLT,
.idle_reg = BD71828_REG_LDO5_VOLT,
.suspend_reg = BD71828_REG_LDO5_VOLT,
.lpsr_reg = BD71828_REG_LDO5_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
}, {
.desc = {
.name = "ldo6",
.of_match = of_match_ptr("LDO6"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO6,
.ops = &bd71828_ldo6_ops,
.type = REGULATOR_VOLTAGE,
.fixed_uV = BD71828_LDO_6_VOLTAGE,
.n_voltages = 1,
.enable_reg = BD71828_REG_LDO6_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.owner = THIS_MODULE,
/*
* LDO6 only supports enable/disable for all states.
* Voltage for LDO6 is fixed.
*/
.of_parse_cb = ldo6_parse_dt,
},
}, {
.desc = {
/* SNVS LDO in data-sheet */
.name = "ldo7",
.of_match = of_match_ptr("LDO7"),
.regulators_node = of_match_ptr("regulators"),
.id = BD71828_LDO_SNVS,
.ops = &bd71828_ldo_ops,
.type = REGULATOR_VOLTAGE,
.linear_ranges = bd71828_ldo_volts,
.n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts),
.n_voltages = BD71828_LDO_VOLTS,
.enable_reg = BD71828_REG_LDO7_EN,
.enable_mask = BD71828_MASK_RUN_EN,
.vsel_reg = BD71828_REG_LDO7_VOLT,
.vsel_mask = BD71828_MASK_LDO_VOLT,
.owner = THIS_MODULE,
.of_parse_cb = buck_set_hw_dvs_levels,
},
.dvs = {
/*
* LDO7 only supports single voltage for all states.
* voltage can be individually enabled for each state
* though => allow setting all states to support
* enabling power rail on different states.
*/
.level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE |
ROHM_DVS_LEVEL_SUSPEND |
ROHM_DVS_LEVEL_LPSR,
.run_reg = BD71828_REG_LDO7_VOLT,
.idle_reg = BD71828_REG_LDO7_VOLT,
.suspend_reg = BD71828_REG_LDO7_VOLT,
.lpsr_reg = BD71828_REG_LDO7_VOLT,
.run_mask = BD71828_MASK_LDO_VOLT,
.idle_mask = BD71828_MASK_LDO_VOLT,
.suspend_mask = BD71828_MASK_LDO_VOLT,
.lpsr_mask = BD71828_MASK_LDO_VOLT,
.idle_on_mask = BD71828_MASK_IDLE_EN,
.suspend_on_mask = BD71828_MASK_SUSP_EN,
.lpsr_on_mask = BD71828_MASK_LPSR_EN,
},
},
};
static int bd71828_probe(struct platform_device *pdev)
{
int i, j, ret;
struct regulator_config config = {
.dev = pdev->dev.parent,
};
config.regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!config.regmap)
return -ENODEV;
for (i = 0; i < ARRAY_SIZE(bd71828_rdata); i++) {
struct regulator_dev *rdev;
const struct bd71828_regulator_data *rd;
rd = &bd71828_rdata[i];
rdev = devm_regulator_register(&pdev->dev,
&rd->desc, &config);
if (IS_ERR(rdev))
return dev_err_probe(&pdev->dev, PTR_ERR(rdev),
"failed to register %s regulator\n",
rd->desc.name);
for (j = 0; j < rd->reg_init_amnt; j++) {
ret = regmap_update_bits(config.regmap,
rd->reg_inits[j].reg,
rd->reg_inits[j].mask,
rd->reg_inits[j].val);
if (ret)
return dev_err_probe(&pdev->dev, ret,
"regulator %s init failed\n",
rd->desc.name);
}
}
return 0;
}
static struct platform_driver bd71828_regulator = {
.driver = {
.name = "bd71828-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = bd71828_probe,
};
module_platform_driver(bd71828_regulator);
MODULE_AUTHOR("Matti Vaittinen <[email protected]>");
MODULE_DESCRIPTION("BD71828 voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bd71828-pmic");
| linux-master | drivers/regulator/bd71828-regulator.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) STMicroelectronics 2019
// Author(s): Fabrice Gasnier <[email protected]>.
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
/* STM32H7 SYSCFG register */
#define STM32H7_SYSCFG_PMCR 0x04
#define STM32H7_SYSCFG_BOOSTE_MASK BIT(8)
/* STM32MP1 SYSCFG has set and clear registers */
#define STM32MP1_SYSCFG_PMCSETR 0x04
#define STM32MP1_SYSCFG_PMCCLRR 0x44
#define STM32MP1_SYSCFG_EN_BOOSTER_MASK BIT(8)
static const struct regulator_ops stm32h7_booster_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc stm32h7_booster_desc = {
.name = "booster",
.supply_name = "vdda",
.n_voltages = 1,
.type = REGULATOR_VOLTAGE,
.fixed_uV = 3300000,
.ramp_delay = 66000, /* up to 50us to stabilize */
.ops = &stm32h7_booster_ops,
.enable_reg = STM32H7_SYSCFG_PMCR,
.enable_mask = STM32H7_SYSCFG_BOOSTE_MASK,
.owner = THIS_MODULE,
};
static int stm32mp1_booster_enable(struct regulator_dev *rdev)
{
return regmap_write(rdev->regmap, STM32MP1_SYSCFG_PMCSETR,
STM32MP1_SYSCFG_EN_BOOSTER_MASK);
}
static int stm32mp1_booster_disable(struct regulator_dev *rdev)
{
return regmap_write(rdev->regmap, STM32MP1_SYSCFG_PMCCLRR,
STM32MP1_SYSCFG_EN_BOOSTER_MASK);
}
static const struct regulator_ops stm32mp1_booster_ops = {
.enable = stm32mp1_booster_enable,
.disable = stm32mp1_booster_disable,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc stm32mp1_booster_desc = {
.name = "booster",
.supply_name = "vdda",
.n_voltages = 1,
.type = REGULATOR_VOLTAGE,
.fixed_uV = 3300000,
.ramp_delay = 66000,
.ops = &stm32mp1_booster_ops,
.enable_reg = STM32MP1_SYSCFG_PMCSETR,
.enable_mask = STM32MP1_SYSCFG_EN_BOOSTER_MASK,
.owner = THIS_MODULE,
};
static int stm32_booster_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
struct regulator_config config = { };
const struct regulator_desc *desc;
struct regulator_dev *rdev;
struct regmap *regmap;
int ret;
regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
if (IS_ERR(regmap))
return PTR_ERR(regmap);
desc = (const struct regulator_desc *)
of_match_device(dev->driver->of_match_table, dev)->data;
config.regmap = regmap;
config.dev = dev;
config.of_node = np;
config.init_data = of_get_regulator_init_data(dev, np, desc);
rdev = devm_regulator_register(dev, desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "register failed with error %d\n", ret);
return ret;
}
return 0;
}
static const struct of_device_id __maybe_unused stm32_booster_of_match[] = {
{
.compatible = "st,stm32h7-booster",
.data = (void *)&stm32h7_booster_desc
}, {
.compatible = "st,stm32mp1-booster",
.data = (void *)&stm32mp1_booster_desc
}, {
},
};
MODULE_DEVICE_TABLE(of, stm32_booster_of_match);
static struct platform_driver stm32_booster_driver = {
.probe = stm32_booster_probe,
.driver = {
.name = "stm32-booster",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(stm32_booster_of_match),
},
};
module_platform_driver(stm32_booster_driver);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Fabrice Gasnier <[email protected]>");
MODULE_DESCRIPTION("STMicroelectronics STM32 booster regulator driver");
MODULE_ALIAS("platform:stm32-booster");
| linux-master | drivers/regulator/stm32-booster.c |
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2020 ROHM Semiconductors
// ROHM BD9576MUF/BD9573MUF regulator driver
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/mfd/rohm-bd957x.h>
#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#define BD957X_VOUTS1_VOLT 3300000
#define BD957X_VOUTS4_BASE_VOLT 1030000
#define BD957X_VOUTS34_NUM_VOLT 32
#define BD9576_THERM_IRQ_MASK_TW BIT(5)
#define BD9576_xVD_IRQ_MASK_VOUTL1 BIT(5)
#define BD9576_UVD_IRQ_MASK_VOUTS1_OCW BIT(6)
#define BD9576_xVD_IRQ_MASK_VOUT1TO4 0x0F
static const unsigned int vout1_volt_table[] = {
5000000, 4900000, 4800000, 4700000, 4600000,
4500000, 4500000, 4500000, 5000000, 5100000,
5200000, 5300000, 5400000, 5500000, 5500000,
5500000
};
static const unsigned int vout2_volt_table[] = {
1800000, 1780000, 1760000, 1740000, 1720000,
1700000, 1680000, 1660000, 1800000, 1820000,
1840000, 1860000, 1880000, 1900000, 1920000,
1940000
};
static const unsigned int voutl1_volt_table[] = {
2500000, 2540000, 2580000, 2620000, 2660000,
2700000, 2740000, 2780000, 2500000, 2460000,
2420000, 2380000, 2340000, 2300000, 2260000,
2220000
};
static const struct linear_range vout1_xvd_ranges[] = {
REGULATOR_LINEAR_RANGE(225000, 0x01, 0x2b, 0),
REGULATOR_LINEAR_RANGE(225000, 0x2c, 0x54, 5000),
REGULATOR_LINEAR_RANGE(425000, 0x55, 0x7f, 0),
};
static const struct linear_range vout234_xvd_ranges[] = {
REGULATOR_LINEAR_RANGE(17000, 0x01, 0x0f, 0),
REGULATOR_LINEAR_RANGE(17000, 0x10, 0x6d, 1000),
REGULATOR_LINEAR_RANGE(110000, 0x6e, 0x7f, 0),
};
static const struct linear_range voutL1_xvd_ranges[] = {
REGULATOR_LINEAR_RANGE(34000, 0x01, 0x0f, 0),
REGULATOR_LINEAR_RANGE(34000, 0x10, 0x6d, 2000),
REGULATOR_LINEAR_RANGE(220000, 0x6e, 0x7f, 0),
};
static struct linear_range voutS1_ocw_ranges_internal[] = {
REGULATOR_LINEAR_RANGE(200000, 0x01, 0x04, 0),
REGULATOR_LINEAR_RANGE(250000, 0x05, 0x18, 50000),
REGULATOR_LINEAR_RANGE(1200000, 0x19, 0x3f, 0),
};
static struct linear_range voutS1_ocw_ranges[] = {
REGULATOR_LINEAR_RANGE(50000, 0x01, 0x04, 0),
REGULATOR_LINEAR_RANGE(60000, 0x05, 0x18, 10000),
REGULATOR_LINEAR_RANGE(250000, 0x19, 0x3f, 0),
};
static struct linear_range voutS1_ocp_ranges_internal[] = {
REGULATOR_LINEAR_RANGE(300000, 0x01, 0x06, 0),
REGULATOR_LINEAR_RANGE(350000, 0x7, 0x1b, 50000),
REGULATOR_LINEAR_RANGE(1350000, 0x1c, 0x3f, 0),
};
static struct linear_range voutS1_ocp_ranges[] = {
REGULATOR_LINEAR_RANGE(70000, 0x01, 0x06, 0),
REGULATOR_LINEAR_RANGE(80000, 0x7, 0x1b, 10000),
REGULATOR_LINEAR_RANGE(280000, 0x1c, 0x3f, 0),
};
struct bd957x_regulator_data {
struct regulator_desc desc;
int base_voltage;
struct regulator_dev *rdev;
int ovd_notif;
int uvd_notif;
int temp_notif;
int ovd_err;
int uvd_err;
int temp_err;
const struct linear_range *xvd_ranges;
int num_xvd_ranges;
bool oc_supported;
unsigned int ovd_reg;
unsigned int uvd_reg;
unsigned int xvd_mask;
unsigned int ocp_reg;
unsigned int ocp_mask;
unsigned int ocw_reg;
unsigned int ocw_mask;
unsigned int ocw_rfet;
};
#define BD9576_NUM_REGULATORS 6
#define BD9576_NUM_OVD_REGULATORS 5
struct bd957x_data {
struct bd957x_regulator_data regulator_data[BD9576_NUM_REGULATORS];
struct regmap *regmap;
struct delayed_work therm_irq_suppress;
struct delayed_work ovd_irq_suppress;
struct delayed_work uvd_irq_suppress;
unsigned int therm_irq;
unsigned int ovd_irq;
unsigned int uvd_irq;
spinlock_t err_lock;
int regulator_global_err;
};
static int bd957x_vout34_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
const struct regulator_desc *desc = rdev->desc;
int multiplier = selector & desc->vsel_mask & 0x7f;
int tune;
/* VOUT3 and 4 has 10mV step */
tune = multiplier * 10000;
if (!(selector & 0x80))
return desc->fixed_uV - tune;
return desc->fixed_uV + tune;
}
static int bd957x_list_voltage(struct regulator_dev *rdev,
unsigned int selector)
{
const struct regulator_desc *desc = rdev->desc;
int index = selector & desc->vsel_mask & 0x7f;
if (!(selector & 0x80))
index += desc->n_voltages/2;
if (index >= desc->n_voltages)
return -EINVAL;
return desc->volt_table[index];
}
static void bd9576_fill_ovd_flags(struct bd957x_regulator_data *data,
bool warn)
{
if (warn) {
data->ovd_notif = REGULATOR_EVENT_OVER_VOLTAGE_WARN;
data->ovd_err = REGULATOR_ERROR_OVER_VOLTAGE_WARN;
} else {
data->ovd_notif = REGULATOR_EVENT_REGULATION_OUT;
data->ovd_err = REGULATOR_ERROR_REGULATION_OUT;
}
}
static void bd9576_fill_ocp_flags(struct bd957x_regulator_data *data,
bool warn)
{
if (warn) {
data->uvd_notif = REGULATOR_EVENT_OVER_CURRENT_WARN;
data->uvd_err = REGULATOR_ERROR_OVER_CURRENT_WARN;
} else {
data->uvd_notif = REGULATOR_EVENT_OVER_CURRENT;
data->uvd_err = REGULATOR_ERROR_OVER_CURRENT;
}
}
static void bd9576_fill_uvd_flags(struct bd957x_regulator_data *data,
bool warn)
{
if (warn) {
data->uvd_notif = REGULATOR_EVENT_UNDER_VOLTAGE_WARN;
data->uvd_err = REGULATOR_ERROR_UNDER_VOLTAGE_WARN;
} else {
data->uvd_notif = REGULATOR_EVENT_UNDER_VOLTAGE;
data->uvd_err = REGULATOR_ERROR_UNDER_VOLTAGE;
}
}
static void bd9576_fill_temp_flags(struct bd957x_regulator_data *data,
bool enable, bool warn)
{
if (!enable) {
data->temp_notif = 0;
data->temp_err = 0;
} else if (warn) {
data->temp_notif = REGULATOR_EVENT_OVER_TEMP_WARN;
data->temp_err = REGULATOR_ERROR_OVER_TEMP_WARN;
} else {
data->temp_notif = REGULATOR_EVENT_OVER_TEMP;
data->temp_err = REGULATOR_ERROR_OVER_TEMP;
}
}
static int bd9576_set_limit(const struct linear_range *r, int num_ranges,
struct regmap *regmap, int reg, int mask, int lim)
{
int ret;
bool found;
int sel = 0;
if (lim) {
ret = linear_range_get_selector_low_array(r, num_ranges,
lim, &sel, &found);
if (ret)
return ret;
if (!found)
dev_warn(regmap_get_device(regmap),
"limit %d out of range. Setting lower\n",
lim);
}
return regmap_update_bits(regmap, reg, mask, sel);
}
static bool check_ocp_flag_mismatch(struct regulator_dev *rdev, int severity,
struct bd957x_regulator_data *r)
{
if ((severity == REGULATOR_SEVERITY_ERR &&
r->uvd_notif != REGULATOR_EVENT_OVER_CURRENT) ||
(severity == REGULATOR_SEVERITY_WARN &&
r->uvd_notif != REGULATOR_EVENT_OVER_CURRENT_WARN)) {
dev_warn(rdev_get_dev(rdev),
"Can't support both OCP WARN and ERR\n");
/* Do not overwrite ERR config with WARN */
if (severity == REGULATOR_SEVERITY_WARN)
return true;
bd9576_fill_ocp_flags(r, 0);
}
return false;
}
static bool check_uvd_flag_mismatch(struct regulator_dev *rdev, int severity,
struct bd957x_regulator_data *r)
{
if ((severity == REGULATOR_SEVERITY_ERR &&
r->uvd_notif != REGULATOR_EVENT_UNDER_VOLTAGE) ||
(severity == REGULATOR_SEVERITY_WARN &&
r->uvd_notif != REGULATOR_EVENT_UNDER_VOLTAGE_WARN)) {
dev_warn(rdev_get_dev(rdev),
"Can't support both UVD WARN and ERR\n");
if (severity == REGULATOR_SEVERITY_WARN)
return true;
bd9576_fill_uvd_flags(r, 0);
}
return false;
}
static bool check_ovd_flag_mismatch(struct regulator_dev *rdev, int severity,
struct bd957x_regulator_data *r)
{
if ((severity == REGULATOR_SEVERITY_ERR &&
r->ovd_notif != REGULATOR_EVENT_REGULATION_OUT) ||
(severity == REGULATOR_SEVERITY_WARN &&
r->ovd_notif != REGULATOR_EVENT_OVER_VOLTAGE_WARN)) {
dev_warn(rdev_get_dev(rdev),
"Can't support both OVD WARN and ERR\n");
if (severity == REGULATOR_SEVERITY_WARN)
return true;
bd9576_fill_ovd_flags(r, 0);
}
return false;
}
static bool check_temp_flag_mismatch(struct regulator_dev *rdev, int severity,
struct bd957x_regulator_data *r)
{
if ((severity == REGULATOR_SEVERITY_ERR &&
r->temp_notif != REGULATOR_EVENT_OVER_TEMP) ||
(severity == REGULATOR_SEVERITY_WARN &&
r->temp_notif != REGULATOR_EVENT_OVER_TEMP_WARN)) {
dev_warn(rdev_get_dev(rdev),
"Can't support both thermal WARN and ERR\n");
if (severity == REGULATOR_SEVERITY_WARN)
return true;
}
return false;
}
static int bd9576_set_ocp(struct regulator_dev *rdev, int lim_uA, int severity,
bool enable)
{
struct bd957x_data *d;
struct bd957x_regulator_data *r;
int reg, mask;
int Vfet, rfet;
const struct linear_range *range;
int num_ranges;
if ((lim_uA && !enable) || (!lim_uA && enable))
return -EINVAL;
r = container_of(rdev->desc, struct bd957x_regulator_data, desc);
if (!r->oc_supported)
return -EINVAL;
d = rdev_get_drvdata(rdev);
if (severity == REGULATOR_SEVERITY_PROT) {
reg = r->ocp_reg;
mask = r->ocp_mask;
if (r->ocw_rfet) {
range = voutS1_ocp_ranges;
num_ranges = ARRAY_SIZE(voutS1_ocp_ranges);
rfet = r->ocw_rfet / 1000;
} else {
range = voutS1_ocp_ranges_internal;
num_ranges = ARRAY_SIZE(voutS1_ocp_ranges_internal);
/* Internal values are already micro-amperes */
rfet = 1000;
}
} else {
reg = r->ocw_reg;
mask = r->ocw_mask;
if (r->ocw_rfet) {
range = voutS1_ocw_ranges;
num_ranges = ARRAY_SIZE(voutS1_ocw_ranges);
rfet = r->ocw_rfet / 1000;
} else {
range = voutS1_ocw_ranges_internal;
num_ranges = ARRAY_SIZE(voutS1_ocw_ranges_internal);
/* Internal values are already micro-amperes */
rfet = 1000;
}
/* We abuse uvd fields for OCW on VoutS1 */
if (r->uvd_notif) {
/*
* If both warning and error are requested, prioritize
* ERROR configuration
*/
if (check_ocp_flag_mismatch(rdev, severity, r))
return 0;
} else {
bool warn = severity == REGULATOR_SEVERITY_WARN;
bd9576_fill_ocp_flags(r, warn);
}
}
/*
* limits are given in uA, rfet is mOhm
* Divide lim_uA by 1000 to get Vfet in uV.
* (We expect both Rfet and limit uA to be magnitude of hundreds of
* milli Amperes & milli Ohms => we should still have decent accuracy)
*/
Vfet = lim_uA/1000 * rfet;
return bd9576_set_limit(range, num_ranges, d->regmap,
reg, mask, Vfet);
}
static int bd9576_set_uvp(struct regulator_dev *rdev, int lim_uV, int severity,
bool enable)
{
struct bd957x_data *d;
struct bd957x_regulator_data *r;
int mask, reg;
if (severity == REGULATOR_SEVERITY_PROT) {
if (!enable || lim_uV)
return -EINVAL;
return 0;
}
/*
* BD9576 has enable control as a special value in limit reg. Can't
* set limit but keep feature disabled or enable W/O given limit.
*/
if ((lim_uV && !enable) || (!lim_uV && enable))
return -EINVAL;
r = container_of(rdev->desc, struct bd957x_regulator_data, desc);
d = rdev_get_drvdata(rdev);
mask = r->xvd_mask;
reg = r->uvd_reg;
/*
* Check that there is no mismatch for what the detection IRQs are to
* be used.
*/
if (r->uvd_notif) {
if (check_uvd_flag_mismatch(rdev, severity, r))
return 0;
} else {
bd9576_fill_uvd_flags(r, severity == REGULATOR_SEVERITY_WARN);
}
return bd9576_set_limit(r->xvd_ranges, r->num_xvd_ranges, d->regmap,
reg, mask, lim_uV);
}
static int bd9576_set_ovp(struct regulator_dev *rdev, int lim_uV, int severity,
bool enable)
{
struct bd957x_data *d;
struct bd957x_regulator_data *r;
int mask, reg;
if (severity == REGULATOR_SEVERITY_PROT) {
if (!enable || lim_uV)
return -EINVAL;
return 0;
}
/*
* BD9576 has enable control as a special value in limit reg. Can't
* set limit but keep feature disabled or enable W/O given limit.
*/
if ((lim_uV && !enable) || (!lim_uV && enable))
return -EINVAL;
r = container_of(rdev->desc, struct bd957x_regulator_data, desc);
d = rdev_get_drvdata(rdev);
mask = r->xvd_mask;
reg = r->ovd_reg;
/*
* Check that there is no mismatch for what the detection IRQs are to
* be used.
*/
if (r->ovd_notif) {
if (check_ovd_flag_mismatch(rdev, severity, r))
return 0;
} else {
bd9576_fill_ovd_flags(r, severity == REGULATOR_SEVERITY_WARN);
}
return bd9576_set_limit(r->xvd_ranges, r->num_xvd_ranges, d->regmap,
reg, mask, lim_uV);
}
static int bd9576_set_tw(struct regulator_dev *rdev, int lim, int severity,
bool enable)
{
struct bd957x_data *d;
struct bd957x_regulator_data *r;
int i;
/*
* BD9576MUF has fixed temperature limits
* The detection can only be enabled/disabled
*/
if (lim)
return -EINVAL;
/* Protection can't be disabled */
if (severity == REGULATOR_SEVERITY_PROT) {
if (!enable)
return -EINVAL;
else
return 0;
}
r = container_of(rdev->desc, struct bd957x_regulator_data, desc);
d = rdev_get_drvdata(rdev);
/*
* Check that there is no mismatch for what the detection IRQs are to
* be used.
*/
if (r->temp_notif)
if (check_temp_flag_mismatch(rdev, severity, r))
return 0;
bd9576_fill_temp_flags(r, enable, severity == REGULATOR_SEVERITY_WARN);
if (enable)
return regmap_update_bits(d->regmap, BD957X_REG_INT_THERM_MASK,
BD9576_THERM_IRQ_MASK_TW, 0);
/*
* If any of the regulators is interested in thermal warning we keep IRQ
* enabled.
*/
for (i = 0; i < BD9576_NUM_REGULATORS; i++)
if (d->regulator_data[i].temp_notif)
return 0;
return regmap_update_bits(d->regmap, BD957X_REG_INT_THERM_MASK,
BD9576_THERM_IRQ_MASK_TW,
BD9576_THERM_IRQ_MASK_TW);
}
static const struct regulator_ops bd9573_vout34_ops = {
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = bd957x_vout34_list_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd9576_vout34_ops = {
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = bd957x_vout34_list_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_over_voltage_protection = bd9576_set_ovp,
.set_under_voltage_protection = bd9576_set_uvp,
.set_thermal_protection = bd9576_set_tw,
};
static const struct regulator_ops bd9573_vouts1_regulator_ops = {
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_ops bd9576_vouts1_regulator_ops = {
.is_enabled = regulator_is_enabled_regmap,
.set_over_current_protection = bd9576_set_ocp,
};
static const struct regulator_ops bd9573_ops = {
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = bd957x_list_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
static const struct regulator_ops bd9576_ops = {
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = bd957x_list_voltage,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_over_voltage_protection = bd9576_set_ovp,
.set_under_voltage_protection = bd9576_set_uvp,
.set_thermal_protection = bd9576_set_tw,
};
static const struct regulator_ops *bd9573_ops_arr[] = {
[BD957X_VD50] = &bd9573_ops,
[BD957X_VD18] = &bd9573_ops,
[BD957X_VDDDR] = &bd9573_vout34_ops,
[BD957X_VD10] = &bd9573_vout34_ops,
[BD957X_VOUTL1] = &bd9573_ops,
[BD957X_VOUTS1] = &bd9573_vouts1_regulator_ops,
};
static const struct regulator_ops *bd9576_ops_arr[] = {
[BD957X_VD50] = &bd9576_ops,
[BD957X_VD18] = &bd9576_ops,
[BD957X_VDDDR] = &bd9576_vout34_ops,
[BD957X_VD10] = &bd9576_vout34_ops,
[BD957X_VOUTL1] = &bd9576_ops,
[BD957X_VOUTS1] = &bd9576_vouts1_regulator_ops,
};
static int vouts1_get_fet_res(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct bd957x_regulator_data *data;
int ret;
u32 uohms;
data = container_of(desc, struct bd957x_regulator_data, desc);
ret = of_property_read_u32(np, "rohm,ocw-fet-ron-micro-ohms", &uohms);
if (ret) {
if (ret != -EINVAL)
return ret;
return 0;
}
data->ocw_rfet = uohms;
return 0;
}
static struct bd957x_data bd957x_regulators = {
.regulator_data = {
{
.desc = {
.name = "VD50",
.of_match = of_match_ptr("regulator-vd50"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VD50,
.type = REGULATOR_VOLTAGE,
.volt_table = &vout1_volt_table[0],
.n_voltages = ARRAY_SIZE(vout1_volt_table),
.vsel_reg = BD957X_REG_VOUT1_TUNE,
.vsel_mask = BD957X_MASK_VOUT1_TUNE,
.enable_reg = BD957X_REG_POW_TRIGGER1,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
},
.xvd_ranges = vout1_xvd_ranges,
.num_xvd_ranges = ARRAY_SIZE(vout1_xvd_ranges),
.ovd_reg = BD9576_REG_VOUT1_OVD,
.uvd_reg = BD9576_REG_VOUT1_UVD,
.xvd_mask = BD9576_MASK_XVD,
},
{
.desc = {
.name = "VD18",
.of_match = of_match_ptr("regulator-vd18"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VD18,
.type = REGULATOR_VOLTAGE,
.volt_table = &vout2_volt_table[0],
.n_voltages = ARRAY_SIZE(vout2_volt_table),
.vsel_reg = BD957X_REG_VOUT2_TUNE,
.vsel_mask = BD957X_MASK_VOUT2_TUNE,
.enable_reg = BD957X_REG_POW_TRIGGER2,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
},
.xvd_ranges = vout234_xvd_ranges,
.num_xvd_ranges = ARRAY_SIZE(vout234_xvd_ranges),
.ovd_reg = BD9576_REG_VOUT2_OVD,
.uvd_reg = BD9576_REG_VOUT2_UVD,
.xvd_mask = BD9576_MASK_XVD,
},
{
.desc = {
.name = "VDDDR",
.of_match = of_match_ptr("regulator-vdddr"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VDDDR,
.type = REGULATOR_VOLTAGE,
.n_voltages = BD957X_VOUTS34_NUM_VOLT,
.vsel_reg = BD957X_REG_VOUT3_TUNE,
.vsel_mask = BD957X_MASK_VOUT3_TUNE,
.enable_reg = BD957X_REG_POW_TRIGGER3,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
},
.ovd_reg = BD9576_REG_VOUT3_OVD,
.uvd_reg = BD9576_REG_VOUT3_UVD,
.xvd_mask = BD9576_MASK_XVD,
.xvd_ranges = vout234_xvd_ranges,
.num_xvd_ranges = ARRAY_SIZE(vout234_xvd_ranges),
},
{
.desc = {
.name = "VD10",
.of_match = of_match_ptr("regulator-vd10"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VD10,
.type = REGULATOR_VOLTAGE,
.fixed_uV = BD957X_VOUTS4_BASE_VOLT,
.n_voltages = BD957X_VOUTS34_NUM_VOLT,
.vsel_reg = BD957X_REG_VOUT4_TUNE,
.vsel_mask = BD957X_MASK_VOUT4_TUNE,
.enable_reg = BD957X_REG_POW_TRIGGER4,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
},
.xvd_ranges = vout234_xvd_ranges,
.num_xvd_ranges = ARRAY_SIZE(vout234_xvd_ranges),
.ovd_reg = BD9576_REG_VOUT4_OVD,
.uvd_reg = BD9576_REG_VOUT4_UVD,
.xvd_mask = BD9576_MASK_XVD,
},
{
.desc = {
.name = "VOUTL1",
.of_match = of_match_ptr("regulator-voutl1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VOUTL1,
.type = REGULATOR_VOLTAGE,
.volt_table = &voutl1_volt_table[0],
.n_voltages = ARRAY_SIZE(voutl1_volt_table),
.vsel_reg = BD957X_REG_VOUTL1_TUNE,
.vsel_mask = BD957X_MASK_VOUTL1_TUNE,
.enable_reg = BD957X_REG_POW_TRIGGERL1,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
},
.xvd_ranges = voutL1_xvd_ranges,
.num_xvd_ranges = ARRAY_SIZE(voutL1_xvd_ranges),
.ovd_reg = BD9576_REG_VOUTL1_OVD,
.uvd_reg = BD9576_REG_VOUTL1_UVD,
.xvd_mask = BD9576_MASK_XVD,
},
{
.desc = {
.name = "VOUTS1",
.of_match = of_match_ptr("regulator-vouts1"),
.regulators_node = of_match_ptr("regulators"),
.id = BD957X_VOUTS1,
.type = REGULATOR_VOLTAGE,
.n_voltages = 1,
.fixed_uV = BD957X_VOUTS1_VOLT,
.enable_reg = BD957X_REG_POW_TRIGGERS1,
.enable_mask = BD957X_REGULATOR_EN_MASK,
.enable_val = BD957X_REGULATOR_DIS_VAL,
.enable_is_inverted = true,
.owner = THIS_MODULE,
.of_parse_cb = vouts1_get_fet_res,
},
.oc_supported = true,
.ocw_reg = BD9576_REG_VOUT1S_OCW,
.ocw_mask = BD9576_MASK_VOUT1S_OCW,
.ocp_reg = BD9576_REG_VOUT1S_OCP,
.ocp_mask = BD9576_MASK_VOUT1S_OCP,
},
},
};
static int bd9576_renable(struct regulator_irq_data *rid, int reg, int mask)
{
int val, ret;
struct bd957x_data *d = (struct bd957x_data *)rid->data;
ret = regmap_read(d->regmap, reg, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
if (rid->opaque && rid->opaque == (val & mask)) {
/*
* It seems we stil have same status. Ack and return
* information that we are still out of limits and core
* should not enable IRQ
*/
regmap_write(d->regmap, reg, mask & val);
return REGULATOR_ERROR_ON;
}
rid->opaque = 0;
/*
* Status was changed. Either prolem was solved or we have new issues.
* Let's re-enable IRQs and be prepared to report problems again
*/
return REGULATOR_ERROR_CLEARED;
}
static int bd9576_uvd_renable(struct regulator_irq_data *rid)
{
return bd9576_renable(rid, BD957X_REG_INT_UVD_STAT, UVD_IRQ_VALID_MASK);
}
static int bd9576_ovd_renable(struct regulator_irq_data *rid)
{
return bd9576_renable(rid, BD957X_REG_INT_OVD_STAT, OVD_IRQ_VALID_MASK);
}
static int bd9576_temp_renable(struct regulator_irq_data *rid)
{
return bd9576_renable(rid, BD957X_REG_INT_THERM_STAT,
BD9576_THERM_IRQ_MASK_TW);
}
static int bd9576_uvd_handler(int irq, struct regulator_irq_data *rid,
unsigned long *dev_mask)
{
int val, ret, i;
struct bd957x_data *d = (struct bd957x_data *)rid->data;
ret = regmap_read(d->regmap, BD957X_REG_INT_UVD_STAT, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
*dev_mask = 0;
rid->opaque = val & UVD_IRQ_VALID_MASK;
/*
* Go through the set status bits and report either error or warning
* to the notifier depending on what was flagged in DT
*/
*dev_mask = val & BD9576_xVD_IRQ_MASK_VOUT1TO4;
/* There is 1 bit gap in register after Vout1 .. Vout4 statuses */
*dev_mask |= ((val & BD9576_xVD_IRQ_MASK_VOUTL1) >> 1);
/*
* We (ab)use the uvd for OCW notification. DT parsing should
* have added correct OCW flag to uvd_notif and uvd_err for S1
*/
*dev_mask |= ((val & BD9576_UVD_IRQ_MASK_VOUTS1_OCW) >> 1);
for_each_set_bit(i, dev_mask, 6) {
struct bd957x_regulator_data *rdata;
struct regulator_err_state *stat;
rdata = &d->regulator_data[i];
stat = &rid->states[i];
stat->notifs = rdata->uvd_notif;
stat->errors = rdata->uvd_err;
}
ret = regmap_write(d->regmap, BD957X_REG_INT_UVD_STAT,
UVD_IRQ_VALID_MASK & val);
return 0;
}
static int bd9576_ovd_handler(int irq, struct regulator_irq_data *rid,
unsigned long *dev_mask)
{
int val, ret, i;
struct bd957x_data *d = (struct bd957x_data *)rid->data;
ret = regmap_read(d->regmap, BD957X_REG_INT_OVD_STAT, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
rid->opaque = val & OVD_IRQ_VALID_MASK;
*dev_mask = 0;
if (!(val & OVD_IRQ_VALID_MASK))
return 0;
*dev_mask = val & BD9576_xVD_IRQ_MASK_VOUT1TO4;
/* There is 1 bit gap in register after Vout1 .. Vout4 statuses */
*dev_mask |= ((val & BD9576_xVD_IRQ_MASK_VOUTL1) >> 1);
for_each_set_bit(i, dev_mask, 5) {
struct bd957x_regulator_data *rdata;
struct regulator_err_state *stat;
rdata = &d->regulator_data[i];
stat = &rid->states[i];
stat->notifs = rdata->ovd_notif;
stat->errors = rdata->ovd_err;
}
/* Clear the sub-IRQ status */
regmap_write(d->regmap, BD957X_REG_INT_OVD_STAT,
OVD_IRQ_VALID_MASK & val);
return 0;
}
#define BD9576_DEV_MASK_ALL_REGULATORS 0x3F
static int bd9576_thermal_handler(int irq, struct regulator_irq_data *rid,
unsigned long *dev_mask)
{
int val, ret, i;
struct bd957x_data *d = (struct bd957x_data *)rid->data;
ret = regmap_read(d->regmap, BD957X_REG_INT_THERM_STAT, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
if (!(val & BD9576_THERM_IRQ_MASK_TW)) {
*dev_mask = 0;
return 0;
}
*dev_mask = BD9576_DEV_MASK_ALL_REGULATORS;
for (i = 0; i < BD9576_NUM_REGULATORS; i++) {
struct bd957x_regulator_data *rdata;
struct regulator_err_state *stat;
rdata = &d->regulator_data[i];
stat = &rid->states[i];
stat->notifs = rdata->temp_notif;
stat->errors = rdata->temp_err;
}
/* Clear the sub-IRQ status */
regmap_write(d->regmap, BD957X_REG_INT_THERM_STAT,
BD9576_THERM_IRQ_MASK_TW);
return 0;
}
static int bd957x_probe(struct platform_device *pdev)
{
int i;
unsigned int num_reg_data;
bool vout_mode, ddr_sel, may_have_irqs = false;
struct regmap *regmap;
struct bd957x_data *ic_data;
struct regulator_config config = { 0 };
/* All regulators are related to UVD and thermal IRQs... */
struct regulator_dev *rdevs[BD9576_NUM_REGULATORS];
/* ...But VoutS1 is not flagged by OVD IRQ */
struct regulator_dev *ovd_devs[BD9576_NUM_OVD_REGULATORS];
static const struct regulator_irq_desc bd9576_notif_uvd = {
.name = "bd9576-uvd",
.irq_off_ms = 1000,
.map_event = bd9576_uvd_handler,
.renable = bd9576_uvd_renable,
.data = &bd957x_regulators,
};
static const struct regulator_irq_desc bd9576_notif_ovd = {
.name = "bd9576-ovd",
.irq_off_ms = 1000,
.map_event = bd9576_ovd_handler,
.renable = bd9576_ovd_renable,
.data = &bd957x_regulators,
};
static const struct regulator_irq_desc bd9576_notif_temp = {
.name = "bd9576-temp",
.irq_off_ms = 1000,
.map_event = bd9576_thermal_handler,
.renable = bd9576_temp_renable,
.data = &bd957x_regulators,
};
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
num_reg_data = ARRAY_SIZE(bd957x_regulators.regulator_data);
ic_data = &bd957x_regulators;
regmap = dev_get_regmap(pdev->dev.parent, NULL);
if (!regmap) {
dev_err(&pdev->dev, "No regmap\n");
return -EINVAL;
}
ic_data->regmap = regmap;
vout_mode = device_property_read_bool(pdev->dev.parent,
"rohm,vout1-en-low");
if (vout_mode) {
struct gpio_desc *en;
dev_dbg(&pdev->dev, "GPIO controlled mode\n");
/* VOUT1 enable state judged by VOUT1_EN pin */
/* See if we have GPIO defined */
en = devm_fwnode_gpiod_get(&pdev->dev,
dev_fwnode(pdev->dev.parent),
"rohm,vout1-en", GPIOD_OUT_LOW,
"vout1-en");
/* VOUT1_OPS gpio ctrl */
/*
* Regulator core prioritizes the ena_gpio over
* enable/disable/is_enabled callbacks so no need to clear them
* even if GPIO is used. So, we can still use same ops.
*
* In theory it is possible someone wants to set vout1-en LOW
* during OTP loading and set VOUT1 to be controlled by GPIO -
* but control the GPIO from some where else than this driver.
* For that to work we should unset the is_enabled callback
* here.
*
* I believe such case where rohm,vout1-en-low is set and
* vout1-en-gpios is not is likely to be a misconfiguration.
* So let's just err out for now.
*/
if (!IS_ERR(en))
config.ena_gpiod = en;
else
return dev_err_probe(&pdev->dev, PTR_ERR(en),
"Failed to get VOUT1 control GPIO\n");
}
/*
* If more than one PMIC needs to be controlled by same processor then
* allocate the regulator data array here and use bd9576_regulators as
* template. At the moment I see no such use-case so I spare some
* bytes and use bd9576_regulators directly for non-constant configs
* like DDR voltage selection.
*/
platform_set_drvdata(pdev, ic_data);
ddr_sel = device_property_read_bool(pdev->dev.parent,
"rohm,ddr-sel-low");
if (ddr_sel)
ic_data->regulator_data[2].desc.fixed_uV = 1350000;
else
ic_data->regulator_data[2].desc.fixed_uV = 1500000;
switch (chip) {
case ROHM_CHIP_TYPE_BD9576:
may_have_irqs = true;
dev_dbg(&pdev->dev, "Found BD9576MUF\n");
break;
case ROHM_CHIP_TYPE_BD9573:
dev_dbg(&pdev->dev, "Found BD9573MUF\n");
break;
default:
dev_err(&pdev->dev, "Unsupported chip type\n");
return -EINVAL;
}
for (i = 0; i < num_reg_data; i++) {
struct regulator_desc *d;
d = &ic_data->regulator_data[i].desc;
if (may_have_irqs) {
if (d->id >= ARRAY_SIZE(bd9576_ops_arr))
return -EINVAL;
d->ops = bd9576_ops_arr[d->id];
} else {
if (d->id >= ARRAY_SIZE(bd9573_ops_arr))
return -EINVAL;
d->ops = bd9573_ops_arr[d->id];
}
}
config.dev = pdev->dev.parent;
config.regmap = regmap;
config.driver_data = ic_data;
for (i = 0; i < num_reg_data; i++) {
struct bd957x_regulator_data *r = &ic_data->regulator_data[i];
const struct regulator_desc *desc = &r->desc;
r->rdev = devm_regulator_register(&pdev->dev, desc,
&config);
if (IS_ERR(r->rdev))
return dev_err_probe(&pdev->dev, PTR_ERR(r->rdev),
"failed to register %s regulator\n",
desc->name);
/*
* Clear the VOUT1 GPIO setting - rest of the regulators do not
* support GPIO control
*/
config.ena_gpiod = NULL;
if (!may_have_irqs)
continue;
rdevs[i] = r->rdev;
if (i < BD957X_VOUTS1)
ovd_devs[i] = r->rdev;
}
if (may_have_irqs) {
void *ret;
/*
* We can add both the possible error and warning flags here
* because the core uses these only for status clearing and
* if we use warnings - errors are always clear and the other
* way around. We can also add CURRENT flag for all regulators
* because it is never set if it is not supported. Same applies
* to setting UVD for VoutS1 - it is not accidentally cleared
* as it is never set.
*/
int uvd_errs = REGULATOR_ERROR_UNDER_VOLTAGE |
REGULATOR_ERROR_UNDER_VOLTAGE_WARN |
REGULATOR_ERROR_OVER_CURRENT |
REGULATOR_ERROR_OVER_CURRENT_WARN;
int ovd_errs = REGULATOR_ERROR_OVER_VOLTAGE_WARN |
REGULATOR_ERROR_REGULATION_OUT;
int temp_errs = REGULATOR_ERROR_OVER_TEMP |
REGULATOR_ERROR_OVER_TEMP_WARN;
int irq;
irq = platform_get_irq_byname(pdev, "bd9576-uvd");
/* Register notifiers - can fail if IRQ is not given */
ret = devm_regulator_irq_helper(&pdev->dev, &bd9576_notif_uvd,
irq, 0, uvd_errs, NULL,
&rdevs[0],
BD9576_NUM_REGULATORS);
if (IS_ERR(ret)) {
if (PTR_ERR(ret) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_warn(&pdev->dev, "UVD disabled %pe\n", ret);
}
irq = platform_get_irq_byname(pdev, "bd9576-ovd");
ret = devm_regulator_irq_helper(&pdev->dev, &bd9576_notif_ovd,
irq, 0, ovd_errs, NULL,
&ovd_devs[0],
BD9576_NUM_OVD_REGULATORS);
if (IS_ERR(ret)) {
if (PTR_ERR(ret) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_warn(&pdev->dev, "OVD disabled %pe\n", ret);
}
irq = platform_get_irq_byname(pdev, "bd9576-temp");
ret = devm_regulator_irq_helper(&pdev->dev, &bd9576_notif_temp,
irq, 0, temp_errs, NULL,
&rdevs[0],
BD9576_NUM_REGULATORS);
if (IS_ERR(ret)) {
if (PTR_ERR(ret) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_warn(&pdev->dev, "Thermal warning disabled %pe\n",
ret);
}
}
return 0;
}
static const struct platform_device_id bd957x_pmic_id[] = {
{ "bd9573-regulator", ROHM_CHIP_TYPE_BD9573 },
{ "bd9576-regulator", ROHM_CHIP_TYPE_BD9576 },
{ },
};
MODULE_DEVICE_TABLE(platform, bd957x_pmic_id);
static struct platform_driver bd957x_regulator = {
.driver = {
.name = "bd957x-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = bd957x_probe,
.id_table = bd957x_pmic_id,
};
module_platform_driver(bd957x_regulator);
MODULE_AUTHOR("Matti Vaittinen <[email protected]>");
MODULE_DESCRIPTION("ROHM BD9576/BD9573 voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:bd957x-pmic");
| linux-master | drivers/regulator/bd9576-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* max8660.c -- Voltage regulation for the Maxim 8660/8661
*
* based on max1586.c and wm8400-regulator.c
*
* Copyright (C) 2009 Wolfram Sang, Pengutronix e.K.
*
* Some info:
*
* Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8660-MAX8661.pdf
*
* This chip is a bit nasty because it is a write-only device. Thus, the driver
* uses shadow registers to keep track of its values. The main problem appears
* to be the initialization: When Linux boots up, we cannot know if the chip is
* in the default state or not, so we would have to pass such information in
* platform_data. As this adds a bit of complexity to the driver, this is left
* out for now until it is really needed.
*
* [A|S|M]DTV1 registers are currently not used, but [A|S|M]DTV2.
*
* If the driver is feature complete, it might be worth to check if one set of
* functions for V3-V7 is sufficient. For maximum flexibility during
* development, they are separated for now.
*/
#include <linux/module.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/slab.h>
#include <linux/regulator/max8660.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/of_regulator.h>
#define MAX8660_DCDC_MIN_UV 725000
#define MAX8660_DCDC_MAX_UV 1800000
#define MAX8660_DCDC_STEP 25000
#define MAX8660_DCDC_MAX_SEL 0x2b
#define MAX8660_LDO5_MIN_UV 1700000
#define MAX8660_LDO5_MAX_UV 2000000
#define MAX8660_LDO5_STEP 25000
#define MAX8660_LDO5_MAX_SEL 0x0c
#define MAX8660_LDO67_MIN_UV 1800000
#define MAX8660_LDO67_MAX_UV 3300000
#define MAX8660_LDO67_STEP 100000
#define MAX8660_LDO67_MAX_SEL 0x0f
enum {
MAX8660_OVER1,
MAX8660_OVER2,
MAX8660_VCC1,
MAX8660_ADTV1,
MAX8660_ADTV2,
MAX8660_SDTV1,
MAX8660_SDTV2,
MAX8660_MDTV1,
MAX8660_MDTV2,
MAX8660_L12VCR,
MAX8660_FPWM,
MAX8660_N_REGS, /* not a real register */
};
struct max8660 {
struct i2c_client *client;
u8 shadow_regs[MAX8660_N_REGS]; /* as chip is write only */
};
static int max8660_write(struct max8660 *max8660, u8 reg, u8 mask, u8 val)
{
static const u8 max8660_addresses[MAX8660_N_REGS] = {
0x10, 0x12, 0x20, 0x23, 0x24, 0x29, 0x2a, 0x32, 0x33, 0x39, 0x80
};
int ret;
u8 reg_val = (max8660->shadow_regs[reg] & mask) | val;
dev_vdbg(&max8660->client->dev, "Writing reg %02x with %02x\n",
max8660_addresses[reg], reg_val);
ret = i2c_smbus_write_byte_data(max8660->client,
max8660_addresses[reg], reg_val);
if (ret == 0)
max8660->shadow_regs[reg] = reg_val;
return ret;
}
/*
* DCDC functions
*/
static int max8660_dcdc_is_enabled(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 val = max8660->shadow_regs[MAX8660_OVER1];
u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
return !!(val & mask);
}
static int max8660_dcdc_enable(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 bit = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
return max8660_write(max8660, MAX8660_OVER1, 0xff, bit);
}
static int max8660_dcdc_disable(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? ~1 : ~4;
return max8660_write(max8660, MAX8660_OVER1, mask, 0);
}
static int max8660_dcdc_get_voltage_sel(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 reg = (rdev_get_id(rdev) == MAX8660_V3) ? MAX8660_ADTV2 : MAX8660_SDTV2;
u8 selector = max8660->shadow_regs[reg];
return selector;
}
static int max8660_dcdc_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 reg, bits;
int ret;
reg = (rdev_get_id(rdev) == MAX8660_V3) ? MAX8660_ADTV2 : MAX8660_SDTV2;
ret = max8660_write(max8660, reg, 0, selector);
if (ret)
return ret;
/* Select target voltage register and activate regulation */
bits = (rdev_get_id(rdev) == MAX8660_V3) ? 0x03 : 0x30;
return max8660_write(max8660, MAX8660_VCC1, 0xff, bits);
}
static struct regulator_ops max8660_dcdc_ops = {
.is_enabled = max8660_dcdc_is_enabled,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = max8660_dcdc_set_voltage_sel,
.get_voltage_sel = max8660_dcdc_get_voltage_sel,
};
/*
* LDO5 functions
*/
static int max8660_ldo5_get_voltage_sel(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 selector = max8660->shadow_regs[MAX8660_MDTV2];
return selector;
}
static int max8660_ldo5_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
int ret;
ret = max8660_write(max8660, MAX8660_MDTV2, 0, selector);
if (ret)
return ret;
/* Select target voltage register and activate regulation */
return max8660_write(max8660, MAX8660_VCC1, 0xff, 0xc0);
}
static const struct regulator_ops max8660_ldo5_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = max8660_ldo5_set_voltage_sel,
.get_voltage_sel = max8660_ldo5_get_voltage_sel,
};
/*
* LDO67 functions
*/
static int max8660_ldo67_is_enabled(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 val = max8660->shadow_regs[MAX8660_OVER2];
u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
return !!(val & mask);
}
static int max8660_ldo67_enable(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 bit = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
return max8660_write(max8660, MAX8660_OVER2, 0xff, bit);
}
static int max8660_ldo67_disable(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? ~2 : ~4;
return max8660_write(max8660, MAX8660_OVER2, mask, 0);
}
static int max8660_ldo67_get_voltage_sel(struct regulator_dev *rdev)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
u8 shift = (rdev_get_id(rdev) == MAX8660_V6) ? 0 : 4;
u8 selector = (max8660->shadow_regs[MAX8660_L12VCR] >> shift) & 0xf;
return selector;
}
static int max8660_ldo67_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct max8660 *max8660 = rdev_get_drvdata(rdev);
if (rdev_get_id(rdev) == MAX8660_V6)
return max8660_write(max8660, MAX8660_L12VCR, 0xf0, selector);
else
return max8660_write(max8660, MAX8660_L12VCR, 0x0f,
selector << 4);
}
static const struct regulator_ops max8660_ldo67_ops = {
.is_enabled = max8660_ldo67_is_enabled,
.enable = max8660_ldo67_enable,
.disable = max8660_ldo67_disable,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = max8660_ldo67_get_voltage_sel,
.set_voltage_sel = max8660_ldo67_set_voltage_sel,
};
static const struct regulator_desc max8660_reg[] = {
{
.name = "V3(DCDC)",
.id = MAX8660_V3,
.ops = &max8660_dcdc_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = MAX8660_DCDC_MAX_SEL + 1,
.owner = THIS_MODULE,
.min_uV = MAX8660_DCDC_MIN_UV,
.uV_step = MAX8660_DCDC_STEP,
},
{
.name = "V4(DCDC)",
.id = MAX8660_V4,
.ops = &max8660_dcdc_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = MAX8660_DCDC_MAX_SEL + 1,
.owner = THIS_MODULE,
.min_uV = MAX8660_DCDC_MIN_UV,
.uV_step = MAX8660_DCDC_STEP,
},
{
.name = "V5(LDO)",
.id = MAX8660_V5,
.ops = &max8660_ldo5_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = MAX8660_LDO5_MAX_SEL + 1,
.owner = THIS_MODULE,
.min_uV = MAX8660_LDO5_MIN_UV,
.uV_step = MAX8660_LDO5_STEP,
},
{
.name = "V6(LDO)",
.id = MAX8660_V6,
.ops = &max8660_ldo67_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = MAX8660_LDO67_MAX_SEL + 1,
.owner = THIS_MODULE,
.min_uV = MAX8660_LDO67_MIN_UV,
.uV_step = MAX8660_LDO67_STEP,
},
{
.name = "V7(LDO)",
.id = MAX8660_V7,
.ops = &max8660_ldo67_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = MAX8660_LDO67_MAX_SEL + 1,
.owner = THIS_MODULE,
.min_uV = MAX8660_LDO67_MIN_UV,
.uV_step = MAX8660_LDO67_STEP,
},
};
enum {
MAX8660 = 0,
MAX8661 = 1,
};
#ifdef CONFIG_OF
static const struct of_device_id max8660_dt_ids[] = {
{ .compatible = "maxim,max8660", .data = (void *) MAX8660 },
{ .compatible = "maxim,max8661", .data = (void *) MAX8661 },
{ }
};
MODULE_DEVICE_TABLE(of, max8660_dt_ids);
static int max8660_pdata_from_dt(struct device *dev,
struct device_node **of_node,
struct max8660_platform_data *pdata)
{
int matched, i;
struct device_node *np;
struct max8660_subdev_data *sub;
struct of_regulator_match rmatch[ARRAY_SIZE(max8660_reg)] = { };
np = of_get_child_by_name(dev->of_node, "regulators");
if (!np) {
dev_err(dev, "missing 'regulators' subnode in DT\n");
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(rmatch); i++)
rmatch[i].name = max8660_reg[i].name;
matched = of_regulator_match(dev, np, rmatch, ARRAY_SIZE(rmatch));
of_node_put(np);
if (matched <= 0)
return matched;
pdata->subdevs = devm_kcalloc(dev,
matched,
sizeof(struct max8660_subdev_data),
GFP_KERNEL);
if (!pdata->subdevs)
return -ENOMEM;
pdata->num_subdevs = matched;
sub = pdata->subdevs;
for (i = 0; i < matched; i++) {
sub->id = i;
sub->name = rmatch[i].name;
sub->platform_data = rmatch[i].init_data;
of_node[i] = rmatch[i].of_node;
sub++;
}
return 0;
}
#else
static inline int max8660_pdata_from_dt(struct device *dev,
struct device_node **of_node,
struct max8660_platform_data *pdata)
{
return 0;
}
#endif
static int max8660_probe(struct i2c_client *client)
{
const struct i2c_device_id *i2c_id = i2c_client_get_device_id(client);
struct device *dev = &client->dev;
struct max8660_platform_data pdata_of, *pdata = dev_get_platdata(dev);
struct regulator_config config = { };
struct max8660 *max8660;
int boot_on, i, id, ret = -EINVAL;
struct device_node *of_node[MAX8660_V_END];
unsigned long type;
if (dev->of_node && !pdata) {
const struct of_device_id *id;
id = of_match_device(of_match_ptr(max8660_dt_ids), dev);
if (!id)
return -ENODEV;
ret = max8660_pdata_from_dt(dev, of_node, &pdata_of);
if (ret < 0)
return ret;
pdata = &pdata_of;
type = (unsigned long) id->data;
} else {
type = i2c_id->driver_data;
memset(of_node, 0, sizeof(of_node));
}
if (pdata->num_subdevs > MAX8660_V_END) {
dev_err(dev, "Too many regulators found!\n");
return -EINVAL;
}
max8660 = devm_kzalloc(dev, sizeof(struct max8660), GFP_KERNEL);
if (!max8660)
return -ENOMEM;
max8660->client = client;
if (pdata->en34_is_high) {
/* Simulate always on */
max8660->shadow_regs[MAX8660_OVER1] = 5;
} else {
/* Otherwise devices can be toggled via software */
max8660_dcdc_ops.enable = max8660_dcdc_enable;
max8660_dcdc_ops.disable = max8660_dcdc_disable;
}
/*
* First, set up shadow registers to prevent glitches. As some
* registers are shared between regulators, everything must be properly
* set up for all regulators in advance.
*/
max8660->shadow_regs[MAX8660_ADTV1] =
max8660->shadow_regs[MAX8660_ADTV2] =
max8660->shadow_regs[MAX8660_SDTV1] =
max8660->shadow_regs[MAX8660_SDTV2] = 0x1b;
max8660->shadow_regs[MAX8660_MDTV1] =
max8660->shadow_regs[MAX8660_MDTV2] = 0x04;
for (i = 0; i < pdata->num_subdevs; i++) {
if (!pdata->subdevs[i].platform_data)
boot_on = false;
else
boot_on = pdata->subdevs[i].platform_data->constraints.boot_on;
switch (pdata->subdevs[i].id) {
case MAX8660_V3:
if (boot_on)
max8660->shadow_regs[MAX8660_OVER1] |= 1;
break;
case MAX8660_V4:
if (boot_on)
max8660->shadow_regs[MAX8660_OVER1] |= 4;
break;
case MAX8660_V5:
break;
case MAX8660_V6:
if (boot_on)
max8660->shadow_regs[MAX8660_OVER2] |= 2;
break;
case MAX8660_V7:
if (type == MAX8661) {
dev_err(dev, "Regulator not on this chip!\n");
return -EINVAL;
}
if (boot_on)
max8660->shadow_regs[MAX8660_OVER2] |= 4;
break;
default:
dev_err(dev, "invalid regulator %s\n",
pdata->subdevs[i].name);
return ret;
}
}
/* Finally register devices */
for (i = 0; i < pdata->num_subdevs; i++) {
struct regulator_dev *rdev;
id = pdata->subdevs[i].id;
config.dev = dev;
config.init_data = pdata->subdevs[i].platform_data;
config.of_node = of_node[i];
config.driver_data = max8660;
rdev = devm_regulator_register(&client->dev,
&max8660_reg[id], &config);
if (IS_ERR(rdev)) {
dev_err(&client->dev, "failed to register %s\n",
max8660_reg[id].name);
return PTR_ERR(rdev);
}
}
i2c_set_clientdata(client, max8660);
return 0;
}
static const struct i2c_device_id max8660_id[] = {
{ .name = "max8660", .driver_data = MAX8660 },
{ .name = "max8661", .driver_data = MAX8661 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max8660_id);
static struct i2c_driver max8660_driver = {
.probe = max8660_probe,
.driver = {
.name = "max8660",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.id_table = max8660_id,
};
static int __init max8660_init(void)
{
return i2c_add_driver(&max8660_driver);
}
subsys_initcall(max8660_init);
static void __exit max8660_exit(void)
{
i2c_del_driver(&max8660_driver);
}
module_exit(max8660_exit);
/* Module information */
MODULE_DESCRIPTION("MAXIM 8660/8661 voltage regulator driver");
MODULE_AUTHOR("Wolfram Sang");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/max8660.c |
/*
* Regulator driver for TPS6524x PMIC
*
* Copyright (C) 2010 Texas Instruments
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
* whether express or implied; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#define REG_LDO_SET 0x0
#define LDO_ILIM_MASK 1 /* 0 = 400-800, 1 = 900-1500 */
#define LDO_VSEL_MASK 0x0f
#define LDO2_ILIM_SHIFT 12
#define LDO2_VSEL_SHIFT 4
#define LDO1_ILIM_SHIFT 8
#define LDO1_VSEL_SHIFT 0
#define REG_BLOCK_EN 0x1
#define BLOCK_MASK 1
#define BLOCK_LDO1_SHIFT 0
#define BLOCK_LDO2_SHIFT 1
#define BLOCK_LCD_SHIFT 2
#define BLOCK_USB_SHIFT 3
#define REG_DCDC_SET 0x2
#define DCDC_VDCDC_MASK 0x1f
#define DCDC_VDCDC1_SHIFT 0
#define DCDC_VDCDC2_SHIFT 5
#define DCDC_VDCDC3_SHIFT 10
#define REG_DCDC_EN 0x3
#define DCDCDCDC_EN_MASK 0x1
#define DCDCDCDC1_EN_SHIFT 0
#define DCDCDCDC1_PG_MSK BIT(1)
#define DCDCDCDC2_EN_SHIFT 2
#define DCDCDCDC2_PG_MSK BIT(3)
#define DCDCDCDC3_EN_SHIFT 4
#define DCDCDCDC3_PG_MSK BIT(5)
#define REG_USB 0x4
#define USB_ILIM_SHIFT 0
#define USB_ILIM_MASK 0x3
#define USB_TSD_SHIFT 2
#define USB_TSD_MASK 0x3
#define USB_TWARN_SHIFT 4
#define USB_TWARN_MASK 0x3
#define USB_IWARN_SD BIT(6)
#define USB_FAST_LOOP BIT(7)
#define REG_ALARM 0x5
#define ALARM_LDO1 BIT(0)
#define ALARM_DCDC1 BIT(1)
#define ALARM_DCDC2 BIT(2)
#define ALARM_DCDC3 BIT(3)
#define ALARM_LDO2 BIT(4)
#define ALARM_USB_WARN BIT(5)
#define ALARM_USB_ALARM BIT(6)
#define ALARM_LCD BIT(9)
#define ALARM_TEMP_WARM BIT(10)
#define ALARM_TEMP_HOT BIT(11)
#define ALARM_NRST BIT(14)
#define ALARM_POWERUP BIT(15)
#define REG_INT_ENABLE 0x6
#define INT_LDO1 BIT(0)
#define INT_DCDC1 BIT(1)
#define INT_DCDC2 BIT(2)
#define INT_DCDC3 BIT(3)
#define INT_LDO2 BIT(4)
#define INT_USB_WARN BIT(5)
#define INT_USB_ALARM BIT(6)
#define INT_LCD BIT(9)
#define INT_TEMP_WARM BIT(10)
#define INT_TEMP_HOT BIT(11)
#define INT_GLOBAL_EN BIT(15)
#define REG_INT_STATUS 0x7
#define STATUS_LDO1 BIT(0)
#define STATUS_DCDC1 BIT(1)
#define STATUS_DCDC2 BIT(2)
#define STATUS_DCDC3 BIT(3)
#define STATUS_LDO2 BIT(4)
#define STATUS_USB_WARN BIT(5)
#define STATUS_USB_ALARM BIT(6)
#define STATUS_LCD BIT(9)
#define STATUS_TEMP_WARM BIT(10)
#define STATUS_TEMP_HOT BIT(11)
#define REG_SOFTWARE_RESET 0xb
#define REG_WRITE_ENABLE 0xd
#define REG_REV_ID 0xf
#define N_DCDC 3
#define N_LDO 2
#define N_SWITCH 2
#define N_REGULATORS (N_DCDC + N_LDO + N_SWITCH)
#define CMD_READ(reg) ((reg) << 6)
#define CMD_WRITE(reg) (BIT(5) | (reg) << 6)
#define STAT_CLK BIT(3)
#define STAT_WRITE BIT(2)
#define STAT_INVALID BIT(1)
#define STAT_WP BIT(0)
struct field {
int reg;
int shift;
int mask;
};
struct supply_info {
const char *name;
int n_voltages;
const unsigned int *voltages;
int n_ilimsels;
const unsigned int *ilimsels;
struct field enable, voltage, ilimsel;
};
struct tps6524x {
struct device *dev;
struct spi_device *spi;
struct mutex lock;
struct regulator_desc desc[N_REGULATORS];
};
static int __read_reg(struct tps6524x *hw, int reg)
{
int error = 0;
u16 cmd = CMD_READ(reg), in;
u8 status;
struct spi_message m;
struct spi_transfer t[3];
spi_message_init(&m);
memset(t, 0, sizeof(t));
t[0].tx_buf = &cmd;
t[0].len = 2;
t[0].bits_per_word = 12;
spi_message_add_tail(&t[0], &m);
t[1].rx_buf = ∈
t[1].len = 2;
t[1].bits_per_word = 16;
spi_message_add_tail(&t[1], &m);
t[2].rx_buf = &status;
t[2].len = 1;
t[2].bits_per_word = 4;
spi_message_add_tail(&t[2], &m);
error = spi_sync(hw->spi, &m);
if (error < 0)
return error;
dev_dbg(hw->dev, "read reg %d, data %x, status %x\n",
reg, in, status);
if (!(status & STAT_CLK) || (status & STAT_WRITE))
return -EIO;
if (status & STAT_INVALID)
return -EINVAL;
return in;
}
static int read_reg(struct tps6524x *hw, int reg)
{
int ret;
mutex_lock(&hw->lock);
ret = __read_reg(hw, reg);
mutex_unlock(&hw->lock);
return ret;
}
static int __write_reg(struct tps6524x *hw, int reg, int val)
{
int error = 0;
u16 cmd = CMD_WRITE(reg), out = val;
u8 status;
struct spi_message m;
struct spi_transfer t[3];
spi_message_init(&m);
memset(t, 0, sizeof(t));
t[0].tx_buf = &cmd;
t[0].len = 2;
t[0].bits_per_word = 12;
spi_message_add_tail(&t[0], &m);
t[1].tx_buf = &out;
t[1].len = 2;
t[1].bits_per_word = 16;
spi_message_add_tail(&t[1], &m);
t[2].rx_buf = &status;
t[2].len = 1;
t[2].bits_per_word = 4;
spi_message_add_tail(&t[2], &m);
error = spi_sync(hw->spi, &m);
if (error < 0)
return error;
dev_dbg(hw->dev, "wrote reg %d, data %x, status %x\n",
reg, out, status);
if (!(status & STAT_CLK) || !(status & STAT_WRITE))
return -EIO;
if (status & (STAT_INVALID | STAT_WP))
return -EINVAL;
return error;
}
static int __rmw_reg(struct tps6524x *hw, int reg, int mask, int val)
{
int ret;
ret = __read_reg(hw, reg);
if (ret < 0)
return ret;
ret &= ~mask;
ret |= val;
ret = __write_reg(hw, reg, ret);
return (ret < 0) ? ret : 0;
}
static int rmw_protect(struct tps6524x *hw, int reg, int mask, int val)
{
int ret;
mutex_lock(&hw->lock);
ret = __write_reg(hw, REG_WRITE_ENABLE, 1);
if (ret) {
dev_err(hw->dev, "failed to set write enable\n");
goto error;
}
ret = __rmw_reg(hw, reg, mask, val);
if (ret)
dev_err(hw->dev, "failed to rmw register %d\n", reg);
ret = __write_reg(hw, REG_WRITE_ENABLE, 0);
if (ret) {
dev_err(hw->dev, "failed to clear write enable\n");
goto error;
}
error:
mutex_unlock(&hw->lock);
return ret;
}
static int read_field(struct tps6524x *hw, const struct field *field)
{
int tmp;
tmp = read_reg(hw, field->reg);
if (tmp < 0)
return tmp;
return (tmp >> field->shift) & field->mask;
}
static int write_field(struct tps6524x *hw, const struct field *field,
int val)
{
if (val & ~field->mask)
return -EOVERFLOW;
return rmw_protect(hw, field->reg,
field->mask << field->shift,
val << field->shift);
}
static const unsigned int dcdc1_voltages[] = {
800000, 825000, 850000, 875000,
900000, 925000, 950000, 975000,
1000000, 1025000, 1050000, 1075000,
1100000, 1125000, 1150000, 1175000,
1200000, 1225000, 1250000, 1275000,
1300000, 1325000, 1350000, 1375000,
1400000, 1425000, 1450000, 1475000,
1500000, 1525000, 1550000, 1575000,
};
static const unsigned int dcdc2_voltages[] = {
1400000, 1450000, 1500000, 1550000,
1600000, 1650000, 1700000, 1750000,
1800000, 1850000, 1900000, 1950000,
2000000, 2050000, 2100000, 2150000,
2200000, 2250000, 2300000, 2350000,
2400000, 2450000, 2500000, 2550000,
2600000, 2650000, 2700000, 2750000,
2800000, 2850000, 2900000, 2950000,
};
static const unsigned int dcdc3_voltages[] = {
2400000, 2450000, 2500000, 2550000, 2600000,
2650000, 2700000, 2750000, 2800000, 2850000,
2900000, 2950000, 3000000, 3050000, 3100000,
3150000, 3200000, 3250000, 3300000, 3350000,
3400000, 3450000, 3500000, 3550000, 3600000,
};
static const unsigned int ldo1_voltages[] = {
4300000, 4350000, 4400000, 4450000,
4500000, 4550000, 4600000, 4650000,
4700000, 4750000, 4800000, 4850000,
4900000, 4950000, 5000000, 5050000,
};
static const unsigned int ldo2_voltages[] = {
1100000, 1150000, 1200000, 1250000,
1300000, 1700000, 1750000, 1800000,
1850000, 1900000, 3150000, 3200000,
3250000, 3300000, 3350000, 3400000,
};
static const unsigned int fixed_5000000_voltage[] = {
5000000
};
static const unsigned int ldo_ilimsel[] = {
400000, 1500000
};
static const unsigned int usb_ilimsel[] = {
200000, 400000, 800000, 1000000
};
static const unsigned int fixed_2400000_ilimsel[] = {
2400000
};
static const unsigned int fixed_1200000_ilimsel[] = {
1200000
};
static const unsigned int fixed_400000_ilimsel[] = {
400000
};
#define __MK_FIELD(_reg, _mask, _shift) \
{ .reg = (_reg), .mask = (_mask), .shift = (_shift), }
static const struct supply_info supply_info[N_REGULATORS] = {
{
.name = "DCDC1",
.n_voltages = ARRAY_SIZE(dcdc1_voltages),
.voltages = dcdc1_voltages,
.n_ilimsels = ARRAY_SIZE(fixed_2400000_ilimsel),
.ilimsels = fixed_2400000_ilimsel,
.enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
DCDCDCDC1_EN_SHIFT),
.voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
DCDC_VDCDC1_SHIFT),
},
{
.name = "DCDC2",
.n_voltages = ARRAY_SIZE(dcdc2_voltages),
.voltages = dcdc2_voltages,
.n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel),
.ilimsels = fixed_1200000_ilimsel,
.enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
DCDCDCDC2_EN_SHIFT),
.voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
DCDC_VDCDC2_SHIFT),
},
{
.name = "DCDC3",
.n_voltages = ARRAY_SIZE(dcdc3_voltages),
.voltages = dcdc3_voltages,
.n_ilimsels = ARRAY_SIZE(fixed_1200000_ilimsel),
.ilimsels = fixed_1200000_ilimsel,
.enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
DCDCDCDC3_EN_SHIFT),
.voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
DCDC_VDCDC3_SHIFT),
},
{
.name = "LDO1",
.n_voltages = ARRAY_SIZE(ldo1_voltages),
.voltages = ldo1_voltages,
.n_ilimsels = ARRAY_SIZE(ldo_ilimsel),
.ilimsels = ldo_ilimsel,
.enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
BLOCK_LDO1_SHIFT),
.voltage = __MK_FIELD(REG_LDO_SET, LDO_VSEL_MASK,
LDO1_VSEL_SHIFT),
.ilimsel = __MK_FIELD(REG_LDO_SET, LDO_ILIM_MASK,
LDO1_ILIM_SHIFT),
},
{
.name = "LDO2",
.n_voltages = ARRAY_SIZE(ldo2_voltages),
.voltages = ldo2_voltages,
.n_ilimsels = ARRAY_SIZE(ldo_ilimsel),
.ilimsels = ldo_ilimsel,
.enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
BLOCK_LDO2_SHIFT),
.voltage = __MK_FIELD(REG_LDO_SET, LDO_VSEL_MASK,
LDO2_VSEL_SHIFT),
.ilimsel = __MK_FIELD(REG_LDO_SET, LDO_ILIM_MASK,
LDO2_ILIM_SHIFT),
},
{
.name = "USB",
.n_voltages = ARRAY_SIZE(fixed_5000000_voltage),
.voltages = fixed_5000000_voltage,
.n_ilimsels = ARRAY_SIZE(usb_ilimsel),
.ilimsels = usb_ilimsel,
.enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
BLOCK_USB_SHIFT),
.ilimsel = __MK_FIELD(REG_USB, USB_ILIM_MASK,
USB_ILIM_SHIFT),
},
{
.name = "LCD",
.n_voltages = ARRAY_SIZE(fixed_5000000_voltage),
.voltages = fixed_5000000_voltage,
.n_ilimsels = ARRAY_SIZE(fixed_400000_ilimsel),
.ilimsels = fixed_400000_ilimsel,
.enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
BLOCK_LCD_SHIFT),
},
};
static int set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
const struct supply_info *info;
struct tps6524x *hw;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
if (rdev->desc->n_voltages == 1)
return -EINVAL;
return write_field(hw, &info->voltage, selector);
}
static int get_voltage_sel(struct regulator_dev *rdev)
{
const struct supply_info *info;
struct tps6524x *hw;
int ret;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
if (rdev->desc->n_voltages == 1)
return 0;
ret = read_field(hw, &info->voltage);
if (ret < 0)
return ret;
if (WARN_ON(ret >= info->n_voltages))
return -EIO;
return ret;
}
static int set_current_limit(struct regulator_dev *rdev, int min_uA,
int max_uA)
{
const struct supply_info *info;
struct tps6524x *hw;
int i;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
if (info->n_ilimsels == 1)
return -EINVAL;
for (i = info->n_ilimsels - 1; i >= 0; i--) {
if (min_uA <= info->ilimsels[i] &&
max_uA >= info->ilimsels[i])
return write_field(hw, &info->ilimsel, i);
}
return -EINVAL;
}
static int get_current_limit(struct regulator_dev *rdev)
{
const struct supply_info *info;
struct tps6524x *hw;
int ret;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
if (info->n_ilimsels == 1)
return info->ilimsels[0];
ret = read_field(hw, &info->ilimsel);
if (ret < 0)
return ret;
if (WARN_ON(ret >= info->n_ilimsels))
return -EIO;
return info->ilimsels[ret];
}
static int enable_supply(struct regulator_dev *rdev)
{
const struct supply_info *info;
struct tps6524x *hw;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
return write_field(hw, &info->enable, 1);
}
static int disable_supply(struct regulator_dev *rdev)
{
const struct supply_info *info;
struct tps6524x *hw;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
return write_field(hw, &info->enable, 0);
}
static int is_supply_enabled(struct regulator_dev *rdev)
{
const struct supply_info *info;
struct tps6524x *hw;
hw = rdev_get_drvdata(rdev);
info = &supply_info[rdev_get_id(rdev)];
return read_field(hw, &info->enable);
}
static const struct regulator_ops regulator_ops = {
.is_enabled = is_supply_enabled,
.enable = enable_supply,
.disable = disable_supply,
.get_voltage_sel = get_voltage_sel,
.set_voltage_sel = set_voltage_sel,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.set_current_limit = set_current_limit,
.get_current_limit = get_current_limit,
};
static int pmic_probe(struct spi_device *spi)
{
struct tps6524x *hw;
struct device *dev = &spi->dev;
const struct supply_info *info = supply_info;
struct regulator_init_data *init_data;
struct regulator_config config = { };
struct regulator_dev *rdev;
int i;
init_data = dev_get_platdata(dev);
if (!init_data) {
dev_err(dev, "could not find regulator platform data\n");
return -EINVAL;
}
hw = devm_kzalloc(&spi->dev, sizeof(struct tps6524x), GFP_KERNEL);
if (!hw)
return -ENOMEM;
spi_set_drvdata(spi, hw);
memset(hw, 0, sizeof(struct tps6524x));
hw->dev = dev;
hw->spi = spi;
mutex_init(&hw->lock);
for (i = 0; i < N_REGULATORS; i++, info++, init_data++) {
hw->desc[i].name = info->name;
hw->desc[i].id = i;
hw->desc[i].n_voltages = info->n_voltages;
hw->desc[i].volt_table = info->voltages;
hw->desc[i].ops = ®ulator_ops;
hw->desc[i].type = REGULATOR_VOLTAGE;
hw->desc[i].owner = THIS_MODULE;
config.dev = dev;
config.init_data = init_data;
config.driver_data = hw;
rdev = devm_regulator_register(dev, &hw->desc[i], &config);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
}
return 0;
}
static struct spi_driver pmic_driver = {
.probe = pmic_probe,
.driver = {
.name = "tps6524x",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
module_spi_driver(pmic_driver);
MODULE_DESCRIPTION("TPS6524X PMIC Driver");
MODULE_AUTHOR("Cyril Chemparathy");
MODULE_LICENSE("GPL");
MODULE_ALIAS("spi:tps6524x");
| linux-master | drivers/regulator/tps6524x-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
enum {
RTQ6752_IDX_PAVDD = 0,
RTQ6752_IDX_NAVDD = 1,
RTQ6752_IDX_MAX
};
#define RTQ6752_REG_PAVDD 0x00
#define RTQ6752_REG_NAVDD 0x01
#define RTQ6752_REG_PAVDDONDLY 0x07
#define RTQ6752_REG_PAVDDSSTIME 0x08
#define RTQ6752_REG_NAVDDONDLY 0x0D
#define RTQ6752_REG_NAVDDSSTIME 0x0E
#define RTQ6752_REG_OPTION1 0x12
#define RTQ6752_REG_CHSWITCH 0x16
#define RTQ6752_REG_FAULT 0x1D
#define RTQ6752_VOUT_MASK GENMASK(5, 0)
#define RTQ6752_NAVDDEN_MASK BIT(3)
#define RTQ6752_PAVDDEN_MASK BIT(0)
#define RTQ6752_PAVDDAD_MASK BIT(4)
#define RTQ6752_NAVDDAD_MASK BIT(3)
#define RTQ6752_PAVDDF_MASK BIT(3)
#define RTQ6752_NAVDDF_MASK BIT(0)
#define RTQ6752_ENABLE_MASK (BIT(RTQ6752_IDX_MAX) - 1)
#define RTQ6752_VOUT_MINUV 5000000
#define RTQ6752_VOUT_STEPUV 50000
#define RTQ6752_VOUT_NUM 47
#define RTQ6752_I2CRDY_TIMEUS 1000
#define RTQ6752_MINSS_TIMEUS 5000
struct rtq6752_priv {
struct regmap *regmap;
struct gpio_desc *enable_gpio;
struct mutex lock;
unsigned char enable_flag;
};
static int rtq6752_set_vdd_enable(struct regulator_dev *rdev)
{
struct rtq6752_priv *priv = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev), ret;
mutex_lock(&priv->lock);
if (!priv->enable_flag) {
if (priv->enable_gpio) {
gpiod_set_value(priv->enable_gpio, 1);
usleep_range(RTQ6752_I2CRDY_TIMEUS,
RTQ6752_I2CRDY_TIMEUS + 100);
}
regcache_cache_only(priv->regmap, false);
ret = regcache_sync(priv->regmap);
if (ret) {
mutex_unlock(&priv->lock);
return ret;
}
}
priv->enable_flag |= BIT(rid);
mutex_unlock(&priv->lock);
return regulator_enable_regmap(rdev);
}
static int rtq6752_set_vdd_disable(struct regulator_dev *rdev)
{
struct rtq6752_priv *priv = rdev_get_drvdata(rdev);
int rid = rdev_get_id(rdev), ret;
ret = regulator_disable_regmap(rdev);
if (ret)
return ret;
mutex_lock(&priv->lock);
priv->enable_flag &= ~BIT(rid);
if (!priv->enable_flag) {
regcache_cache_only(priv->regmap, true);
regcache_mark_dirty(priv->regmap);
if (priv->enable_gpio)
gpiod_set_value(priv->enable_gpio, 0);
}
mutex_unlock(&priv->lock);
return 0;
}
static int rtq6752_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
unsigned int val, events = 0;
const unsigned int fault_mask[] = {
RTQ6752_PAVDDF_MASK, RTQ6752_NAVDDF_MASK };
int rid = rdev_get_id(rdev), ret;
ret = regmap_read(rdev->regmap, RTQ6752_REG_FAULT, &val);
if (ret)
return ret;
if (val & fault_mask[rid])
events = REGULATOR_ERROR_REGULATION_OUT;
*flags = events;
return 0;
}
static const struct regulator_ops rtq6752_regulator_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = rtq6752_set_vdd_enable,
.disable = rtq6752_set_vdd_disable,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.get_error_flags = rtq6752_get_error_flags,
};
static const struct regulator_desc rtq6752_regulator_descs[] = {
{
.name = "rtq6752-pavdd",
.of_match = of_match_ptr("pavdd"),
.regulators_node = of_match_ptr("regulators"),
.id = RTQ6752_IDX_PAVDD,
.n_voltages = RTQ6752_VOUT_NUM,
.ops = &rtq6752_regulator_ops,
.owner = THIS_MODULE,
.min_uV = RTQ6752_VOUT_MINUV,
.uV_step = RTQ6752_VOUT_STEPUV,
.enable_time = RTQ6752_MINSS_TIMEUS,
.vsel_reg = RTQ6752_REG_PAVDD,
.vsel_mask = RTQ6752_VOUT_MASK,
.enable_reg = RTQ6752_REG_CHSWITCH,
.enable_mask = RTQ6752_PAVDDEN_MASK,
.active_discharge_reg = RTQ6752_REG_OPTION1,
.active_discharge_mask = RTQ6752_PAVDDAD_MASK,
.active_discharge_off = RTQ6752_PAVDDAD_MASK,
},
{
.name = "rtq6752-navdd",
.of_match = of_match_ptr("navdd"),
.regulators_node = of_match_ptr("regulators"),
.id = RTQ6752_IDX_NAVDD,
.n_voltages = RTQ6752_VOUT_NUM,
.ops = &rtq6752_regulator_ops,
.owner = THIS_MODULE,
.min_uV = RTQ6752_VOUT_MINUV,
.uV_step = RTQ6752_VOUT_STEPUV,
.enable_time = RTQ6752_MINSS_TIMEUS,
.vsel_reg = RTQ6752_REG_NAVDD,
.vsel_mask = RTQ6752_VOUT_MASK,
.enable_reg = RTQ6752_REG_CHSWITCH,
.enable_mask = RTQ6752_NAVDDEN_MASK,
.active_discharge_reg = RTQ6752_REG_OPTION1,
.active_discharge_mask = RTQ6752_NAVDDAD_MASK,
.active_discharge_off = RTQ6752_NAVDDAD_MASK,
}
};
static int rtq6752_init_device_properties(struct rtq6752_priv *priv)
{
u8 raw_vals[] = { 0, 0 };
int ret;
/* Configure PAVDD on and softstart delay time to the minimum */
ret = regmap_raw_write(priv->regmap, RTQ6752_REG_PAVDDONDLY, raw_vals,
ARRAY_SIZE(raw_vals));
if (ret)
return ret;
/* Configure NAVDD on and softstart delay time to the minimum */
return regmap_raw_write(priv->regmap, RTQ6752_REG_NAVDDONDLY, raw_vals,
ARRAY_SIZE(raw_vals));
}
static bool rtq6752_is_volatile_reg(struct device *dev, unsigned int reg)
{
if (reg == RTQ6752_REG_FAULT)
return true;
return false;
}
static const struct reg_default rtq6752_reg_defaults[] = {
{ RTQ6752_REG_PAVDD, 0x14 },
{ RTQ6752_REG_NAVDD, 0x14 },
{ RTQ6752_REG_PAVDDONDLY, 0x01 },
{ RTQ6752_REG_PAVDDSSTIME, 0x01 },
{ RTQ6752_REG_NAVDDONDLY, 0x01 },
{ RTQ6752_REG_NAVDDSSTIME, 0x01 },
{ RTQ6752_REG_OPTION1, 0x07 },
{ RTQ6752_REG_CHSWITCH, 0x29 },
};
static const struct regmap_config rtq6752_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.max_register = RTQ6752_REG_FAULT,
.reg_defaults = rtq6752_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(rtq6752_reg_defaults),
.volatile_reg = rtq6752_is_volatile_reg,
};
static int rtq6752_probe(struct i2c_client *i2c)
{
struct rtq6752_priv *priv;
struct regulator_config reg_cfg = {};
struct regulator_dev *rdev;
int i, ret;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
mutex_init(&priv->lock);
priv->enable_gpio = devm_gpiod_get_optional(&i2c->dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(priv->enable_gpio)) {
dev_err(&i2c->dev, "Failed to get 'enable' gpio\n");
return PTR_ERR(priv->enable_gpio);
}
usleep_range(RTQ6752_I2CRDY_TIMEUS, RTQ6752_I2CRDY_TIMEUS + 100);
/* Default EN pin to high, PAVDD and NAVDD will be on */
priv->enable_flag = RTQ6752_ENABLE_MASK;
priv->regmap = devm_regmap_init_i2c(i2c, &rtq6752_regmap_config);
if (IS_ERR(priv->regmap)) {
dev_err(&i2c->dev, "Failed to init regmap\n");
return PTR_ERR(priv->regmap);
}
ret = rtq6752_init_device_properties(priv);
if (ret) {
dev_err(&i2c->dev, "Failed to init device properties\n");
return ret;
}
reg_cfg.dev = &i2c->dev;
reg_cfg.regmap = priv->regmap;
reg_cfg.driver_data = priv;
for (i = 0; i < ARRAY_SIZE(rtq6752_regulator_descs); i++) {
rdev = devm_regulator_register(&i2c->dev,
rtq6752_regulator_descs + i,
®_cfg);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to init %d regulator\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct of_device_id __maybe_unused rtq6752_device_table[] = {
{ .compatible = "richtek,rtq6752", },
{}
};
MODULE_DEVICE_TABLE(of, rtq6752_device_table);
static struct i2c_driver rtq6752_driver = {
.driver = {
.name = "rtq6752",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = rtq6752_device_table,
},
.probe = rtq6752_probe,
};
module_i2c_driver(rtq6752_driver);
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_DESCRIPTION("Richtek RTQ6752 Regulator Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rtq6752-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#define RT4801_REG_VOP 0x00
#define RT4801_REG_VON 0x01
#define RT4801_REG_APPS 0x03
#define VOUT_MASK 0x1F
#define MIN_UV 4000000
#define STEP_UV 100000
#define MAX_UV 6000000
#define N_VOLTAGES ((MAX_UV - MIN_UV) / STEP_UV + 1)
#define DSV_OUT_POS 0
#define DSV_OUT_NEG 1
#define DSV_OUT_MAX 2
#define DSVP_ENABLE BIT(0)
#define DSVN_ENABLE BIT(1)
#define DSVALL_ENABLE (DSVP_ENABLE | DSVN_ENABLE)
struct rt4801_priv {
struct device *dev;
struct gpio_desc *enable_gpios[DSV_OUT_MAX];
unsigned int enable_flag;
unsigned int volt_sel[DSV_OUT_MAX];
};
static int rt4801_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct rt4801_priv *priv = config->driver_data;
int id = desc->id;
if (priv->enable_gpios[id]) {
dev_warn(priv->dev, "duplicated enable-gpios property\n");
return 0;
}
priv->enable_gpios[id] = devm_fwnode_gpiod_get_index(priv->dev,
of_fwnode_handle(np),
"enable", 0,
GPIOD_OUT_HIGH,
"rt4801");
if (IS_ERR(priv->enable_gpios[id]))
priv->enable_gpios[id] = NULL;
return 0;
}
static int rt4801_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector)
{
struct rt4801_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev), ret;
if (priv->enable_flag & BIT(id)) {
ret = regulator_set_voltage_sel_regmap(rdev, selector);
if (ret)
return ret;
}
priv->volt_sel[id] = selector;
return 0;
}
static int rt4801_get_voltage_sel(struct regulator_dev *rdev)
{
struct rt4801_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
if (priv->enable_flag & BIT(id))
return regulator_get_voltage_sel_regmap(rdev);
return priv->volt_sel[id];
}
static int rt4801_enable(struct regulator_dev *rdev)
{
struct rt4801_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev), ret;
if (!priv->enable_gpios[id]) {
dev_warn(&rdev->dev, "no dedicated gpio can control\n");
goto bypass_gpio;
}
gpiod_set_value(priv->enable_gpios[id], 1);
bypass_gpio:
ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, priv->volt_sel[id]);
if (ret)
return ret;
priv->enable_flag |= BIT(id);
return 0;
}
static int rt4801_disable(struct regulator_dev *rdev)
{
struct rt4801_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
if (!priv->enable_gpios[id]) {
dev_warn(&rdev->dev, "no dedicated gpio can control\n");
goto bypass_gpio;
}
gpiod_set_value(priv->enable_gpios[id], 0);
bypass_gpio:
priv->enable_flag &= ~BIT(id);
return 0;
}
static int rt4801_is_enabled(struct regulator_dev *rdev)
{
struct rt4801_priv *priv = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
return !!(priv->enable_flag & BIT(id));
}
static const struct regulator_ops rt4801_regulator_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = rt4801_set_voltage_sel,
.get_voltage_sel = rt4801_get_voltage_sel,
.enable = rt4801_enable,
.disable = rt4801_disable,
.is_enabled = rt4801_is_enabled,
};
static const struct regulator_desc rt4801_regulator_descs[] = {
{
.name = "DSVP",
.ops = &rt4801_regulator_ops,
.of_match = of_match_ptr("DSVP"),
.of_parse_cb = rt4801_of_parse_cb,
.type = REGULATOR_VOLTAGE,
.id = DSV_OUT_POS,
.min_uV = MIN_UV,
.uV_step = STEP_UV,
.n_voltages = N_VOLTAGES,
.owner = THIS_MODULE,
.vsel_reg = RT4801_REG_VOP,
.vsel_mask = VOUT_MASK,
},
{
.name = "DSVN",
.ops = &rt4801_regulator_ops,
.of_match = of_match_ptr("DSVN"),
.of_parse_cb = rt4801_of_parse_cb,
.type = REGULATOR_VOLTAGE,
.id = DSV_OUT_NEG,
.min_uV = MIN_UV,
.uV_step = STEP_UV,
.n_voltages = N_VOLTAGES,
.owner = THIS_MODULE,
.vsel_reg = RT4801_REG_VON,
.vsel_mask = VOUT_MASK,
},
};
static const struct regmap_config rt4801_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RT4801_REG_APPS,
};
static int rt4801_probe(struct i2c_client *i2c)
{
struct rt4801_priv *priv;
struct regmap *regmap;
int i;
priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->dev = &i2c->dev;
/* bootloader will on, driver only reconfigure enable to all output high */
priv->enable_flag = DSVALL_ENABLE;
regmap = devm_regmap_init_i2c(i2c, &rt4801_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&i2c->dev, "Failed to init regmap\n");
return PTR_ERR(regmap);
}
for (i = 0; i < DSV_OUT_MAX; i++) {
priv->enable_gpios[i] = devm_gpiod_get_index_optional(&i2c->dev,
"enable",
i,
GPIOD_OUT_HIGH);
if (IS_ERR(priv->enable_gpios[i])) {
dev_err(&i2c->dev, "Failed to get gpios\n");
return PTR_ERR(priv->enable_gpios[i]);
}
}
for (i = 0; i < DSV_OUT_MAX; i++) {
const struct regulator_desc *desc = rt4801_regulator_descs + i;
struct regulator_config config = { .dev = &i2c->dev, .driver_data = priv,
.regmap = regmap, };
struct regulator_dev *rdev;
unsigned int val;
int ret;
/* initialize volt_sel variable */
ret = regmap_read(regmap, desc->vsel_reg, &val);
if (ret)
return ret;
priv->volt_sel[i] = val & desc->vsel_mask;
rdev = devm_regulator_register(&i2c->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to register [%d] regulator\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct of_device_id __maybe_unused rt4801_of_id[] = {
{ .compatible = "richtek,rt4801", },
{ },
};
MODULE_DEVICE_TABLE(of, rt4801_of_id);
static struct i2c_driver rt4801_driver = {
.driver = {
.name = "rt4801",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(rt4801_of_id),
},
.probe = rt4801_probe,
};
module_i2c_driver(rt4801_driver);
MODULE_AUTHOR("ChiYuan Hwang <[email protected]>");
MODULE_DESCRIPTION("Richtek RT4801 Display Bias Driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rt4801-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Regulator part of Palmas PMIC Chips
*
* Copyright 2011-2013 Texas Instruments Inc.
*
* Author: Graeme Gregory <[email protected]>
* Author: Ian Lartey <[email protected]>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include <linux/mfd/palmas.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/regulator/of_regulator.h>
static const struct linear_range smps_low_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0),
REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000),
REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0),
};
static const struct linear_range smps_high_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0),
REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000),
REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0),
};
static struct palmas_regs_info palmas_generic_regs_info[] = {
{
.name = "SMPS12",
.sname = "smps1-in",
.vsel_addr = PALMAS_SMPS12_VOLTAGE,
.ctrl_addr = PALMAS_SMPS12_CTRL,
.tstep_addr = PALMAS_SMPS12_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "SMPS123",
.sname = "smps1-in",
.vsel_addr = PALMAS_SMPS12_VOLTAGE,
.ctrl_addr = PALMAS_SMPS12_CTRL,
.tstep_addr = PALMAS_SMPS12_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "SMPS3",
.sname = "smps3-in",
.vsel_addr = PALMAS_SMPS3_VOLTAGE,
.ctrl_addr = PALMAS_SMPS3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3,
},
{
.name = "SMPS45",
.sname = "smps4-in",
.vsel_addr = PALMAS_SMPS45_VOLTAGE,
.ctrl_addr = PALMAS_SMPS45_CTRL,
.tstep_addr = PALMAS_SMPS45_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
},
{
.name = "SMPS457",
.sname = "smps4-in",
.vsel_addr = PALMAS_SMPS45_VOLTAGE,
.ctrl_addr = PALMAS_SMPS45_CTRL,
.tstep_addr = PALMAS_SMPS45_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
},
{
.name = "SMPS6",
.sname = "smps6-in",
.vsel_addr = PALMAS_SMPS6_VOLTAGE,
.ctrl_addr = PALMAS_SMPS6_CTRL,
.tstep_addr = PALMAS_SMPS6_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6,
},
{
.name = "SMPS7",
.sname = "smps7-in",
.vsel_addr = PALMAS_SMPS7_VOLTAGE,
.ctrl_addr = PALMAS_SMPS7_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7,
},
{
.name = "SMPS8",
.sname = "smps8-in",
.vsel_addr = PALMAS_SMPS8_VOLTAGE,
.ctrl_addr = PALMAS_SMPS8_CTRL,
.tstep_addr = PALMAS_SMPS8_TSTEP,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8,
},
{
.name = "SMPS9",
.sname = "smps9-in",
.vsel_addr = PALMAS_SMPS9_VOLTAGE,
.ctrl_addr = PALMAS_SMPS9_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9,
},
{
.name = "SMPS10_OUT2",
.sname = "smps10-in",
.ctrl_addr = PALMAS_SMPS10_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
},
{
.name = "SMPS10_OUT1",
.sname = "smps10-out2",
.ctrl_addr = PALMAS_SMPS10_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
},
{
.name = "LDO1",
.sname = "ldo1-in",
.vsel_addr = PALMAS_LDO1_VOLTAGE,
.ctrl_addr = PALMAS_LDO1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1,
},
{
.name = "LDO2",
.sname = "ldo2-in",
.vsel_addr = PALMAS_LDO2_VOLTAGE,
.ctrl_addr = PALMAS_LDO2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2,
},
{
.name = "LDO3",
.sname = "ldo3-in",
.vsel_addr = PALMAS_LDO3_VOLTAGE,
.ctrl_addr = PALMAS_LDO3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3,
},
{
.name = "LDO4",
.sname = "ldo4-in",
.vsel_addr = PALMAS_LDO4_VOLTAGE,
.ctrl_addr = PALMAS_LDO4_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4,
},
{
.name = "LDO5",
.sname = "ldo5-in",
.vsel_addr = PALMAS_LDO5_VOLTAGE,
.ctrl_addr = PALMAS_LDO5_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5,
},
{
.name = "LDO6",
.sname = "ldo6-in",
.vsel_addr = PALMAS_LDO6_VOLTAGE,
.ctrl_addr = PALMAS_LDO6_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6,
},
{
.name = "LDO7",
.sname = "ldo7-in",
.vsel_addr = PALMAS_LDO7_VOLTAGE,
.ctrl_addr = PALMAS_LDO7_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7,
},
{
.name = "LDO8",
.sname = "ldo8-in",
.vsel_addr = PALMAS_LDO8_VOLTAGE,
.ctrl_addr = PALMAS_LDO8_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8,
},
{
.name = "LDO9",
.sname = "ldo9-in",
.vsel_addr = PALMAS_LDO9_VOLTAGE,
.ctrl_addr = PALMAS_LDO9_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9,
},
{
.name = "LDOLN",
.sname = "ldoln-in",
.vsel_addr = PALMAS_LDOLN_VOLTAGE,
.ctrl_addr = PALMAS_LDOLN_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN,
},
{
.name = "LDOUSB",
.sname = "ldousb-in",
.vsel_addr = PALMAS_LDOUSB_VOLTAGE,
.ctrl_addr = PALMAS_LDOUSB_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB,
},
{
.name = "REGEN1",
.ctrl_addr = PALMAS_REGEN1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1,
},
{
.name = "REGEN2",
.ctrl_addr = PALMAS_REGEN2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2,
},
{
.name = "REGEN3",
.ctrl_addr = PALMAS_REGEN3_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3,
},
{
.name = "SYSEN1",
.ctrl_addr = PALMAS_SYSEN1_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1,
},
{
.name = "SYSEN2",
.ctrl_addr = PALMAS_SYSEN2_CTRL,
.sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2,
},
};
static struct palmas_regs_info tps65917_regs_info[] = {
{
.name = "SMPS1",
.sname = "smps1-in",
.vsel_addr = TPS65917_SMPS1_VOLTAGE,
.ctrl_addr = TPS65917_SMPS1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1,
},
{
.name = "SMPS2",
.sname = "smps2-in",
.vsel_addr = TPS65917_SMPS2_VOLTAGE,
.ctrl_addr = TPS65917_SMPS2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2,
},
{
.name = "SMPS3",
.sname = "smps3-in",
.vsel_addr = TPS65917_SMPS3_VOLTAGE,
.ctrl_addr = TPS65917_SMPS3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3,
},
{
.name = "SMPS4",
.sname = "smps4-in",
.vsel_addr = TPS65917_SMPS4_VOLTAGE,
.ctrl_addr = TPS65917_SMPS4_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4,
},
{
.name = "SMPS5",
.sname = "smps5-in",
.vsel_addr = TPS65917_SMPS5_VOLTAGE,
.ctrl_addr = TPS65917_SMPS5_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
},
{
.name = "SMPS12",
.sname = "smps1-in",
.vsel_addr = TPS65917_SMPS1_VOLTAGE,
.ctrl_addr = TPS65917_SMPS1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS12,
},
{
.name = "LDO1",
.sname = "ldo1-in",
.vsel_addr = TPS65917_LDO1_VOLTAGE,
.ctrl_addr = TPS65917_LDO1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1,
},
{
.name = "LDO2",
.sname = "ldo2-in",
.vsel_addr = TPS65917_LDO2_VOLTAGE,
.ctrl_addr = TPS65917_LDO2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2,
},
{
.name = "LDO3",
.sname = "ldo3-in",
.vsel_addr = TPS65917_LDO3_VOLTAGE,
.ctrl_addr = TPS65917_LDO3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3,
},
{
.name = "LDO4",
.sname = "ldo4-in",
.vsel_addr = TPS65917_LDO4_VOLTAGE,
.ctrl_addr = TPS65917_LDO4_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4,
},
{
.name = "LDO5",
.sname = "ldo5-in",
.vsel_addr = TPS65917_LDO5_VOLTAGE,
.ctrl_addr = TPS65917_LDO5_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5,
},
{
.name = "REGEN1",
.ctrl_addr = TPS65917_REGEN1_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1,
},
{
.name = "REGEN2",
.ctrl_addr = TPS65917_REGEN2_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2,
},
{
.name = "REGEN3",
.ctrl_addr = TPS65917_REGEN3_CTRL,
.sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3,
},
};
#define EXTERNAL_REQUESTOR(_id, _offset, _pos) \
[PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \
.id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \
.reg_offset = _offset, \
.bit_pos = _pos, \
}
static struct palmas_sleep_requestor_info palma_sleep_req_info[] = {
EXTERNAL_REQUESTOR(REGEN1, 0, 0),
EXTERNAL_REQUESTOR(REGEN2, 0, 1),
EXTERNAL_REQUESTOR(SYSEN1, 0, 2),
EXTERNAL_REQUESTOR(SYSEN2, 0, 3),
EXTERNAL_REQUESTOR(CLK32KG, 0, 4),
EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5),
EXTERNAL_REQUESTOR(REGEN3, 0, 6),
EXTERNAL_REQUESTOR(SMPS12, 1, 0),
EXTERNAL_REQUESTOR(SMPS3, 1, 1),
EXTERNAL_REQUESTOR(SMPS45, 1, 2),
EXTERNAL_REQUESTOR(SMPS6, 1, 3),
EXTERNAL_REQUESTOR(SMPS7, 1, 4),
EXTERNAL_REQUESTOR(SMPS8, 1, 5),
EXTERNAL_REQUESTOR(SMPS9, 1, 6),
EXTERNAL_REQUESTOR(SMPS10, 1, 7),
EXTERNAL_REQUESTOR(LDO1, 2, 0),
EXTERNAL_REQUESTOR(LDO2, 2, 1),
EXTERNAL_REQUESTOR(LDO3, 2, 2),
EXTERNAL_REQUESTOR(LDO4, 2, 3),
EXTERNAL_REQUESTOR(LDO5, 2, 4),
EXTERNAL_REQUESTOR(LDO6, 2, 5),
EXTERNAL_REQUESTOR(LDO7, 2, 6),
EXTERNAL_REQUESTOR(LDO8, 2, 7),
EXTERNAL_REQUESTOR(LDO9, 3, 0),
EXTERNAL_REQUESTOR(LDOLN, 3, 1),
EXTERNAL_REQUESTOR(LDOUSB, 3, 2),
};
#define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \
[TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \
.id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \
.reg_offset = _offset, \
.bit_pos = _pos, \
}
static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0),
EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1),
EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6),
EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0),
EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1),
EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
EXTERNAL_REQUESTOR_TPS65917(SMPS12, 1, 5),
EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3),
EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4),
};
static const unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
#define SMPS_CTRL_MODE_OFF 0x00
#define SMPS_CTRL_MODE_ON 0x01
#define SMPS_CTRL_MODE_ECO 0x02
#define SMPS_CTRL_MODE_PWM 0x03
#define PALMAS_SMPS_NUM_VOLTAGES 122
#define PALMAS_SMPS10_NUM_VOLTAGES 2
#define PALMAS_LDO_NUM_VOLTAGES 50
#define SMPS10_VSEL (1<<3)
#define SMPS10_BOOST_EN (1<<2)
#define SMPS10_BYPASS_EN (1<<1)
#define SMPS10_SWITCH_EN (1<<0)
#define REGULATOR_SLAVE 0
static int palmas_smps_read(struct palmas *palmas, unsigned int reg,
unsigned int *dest)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
}
static int palmas_smps_write(struct palmas *palmas, unsigned int reg,
unsigned int value)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
}
static int palmas_ldo_read(struct palmas *palmas, unsigned int reg,
unsigned int *dest)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
}
static int palmas_ldo_write(struct palmas *palmas, unsigned int reg,
unsigned int value)
{
unsigned int addr;
addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
}
static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
{
int id = rdev_get_id(dev);
int ret;
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg;
bool rail_enable = true;
ret = palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®);
if (ret)
return ret;
reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
if (reg == SMPS_CTRL_MODE_OFF)
rail_enable = false;
switch (mode) {
case REGULATOR_MODE_NORMAL:
reg |= SMPS_CTRL_MODE_ON;
break;
case REGULATOR_MODE_IDLE:
reg |= SMPS_CTRL_MODE_ECO;
break;
case REGULATOR_MODE_FAST:
reg |= SMPS_CTRL_MODE_PWM;
break;
default:
return -EINVAL;
}
pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
if (rail_enable)
palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
/* Switch the enable value to ensure this is used for enable */
pmic->desc[id].enable_val = pmic->current_reg_mode[id];
return 0;
}
static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
{
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
int id = rdev_get_id(dev);
unsigned int reg;
reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
switch (reg) {
case SMPS_CTRL_MODE_ON:
return REGULATOR_MODE_NORMAL;
case SMPS_CTRL_MODE_ECO:
return REGULATOR_MODE_IDLE;
case SMPS_CTRL_MODE_PWM:
return REGULATOR_MODE_FAST;
}
return 0;
}
static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
int ramp_delay)
{
int id = rdev_get_id(rdev);
struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg = 0;
int ret;
/* SMPS3 and SMPS7 do not have tstep_addr setting */
switch (id) {
case PALMAS_REG_SMPS3:
case PALMAS_REG_SMPS7:
return 0;
}
if (ramp_delay <= 0)
reg = 0;
else if (ramp_delay <= 2500)
reg = 3;
else if (ramp_delay <= 5000)
reg = 2;
else
reg = 1;
ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
if (ret < 0) {
dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
return ret;
}
pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
return ret;
}
static const struct regulator_ops palmas_ops_smps = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = palmas_smps_set_ramp_delay,
};
static const struct regulator_ops palmas_ops_ext_control_smps = {
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = palmas_smps_set_ramp_delay,
};
static const struct regulator_ops palmas_ops_smps10 = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static const struct regulator_ops tps65917_ops_smps = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops tps65917_ops_ext_control_smps = {
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static int palmas_is_enabled_ldo(struct regulator_dev *dev)
{
int id = rdev_get_id(dev);
struct palmas_pmic *pmic = rdev_get_drvdata(dev);
struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int reg;
palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®);
reg &= PALMAS_LDO1_CTRL_STATUS;
return !!(reg);
}
static const struct regulator_ops palmas_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_ops palmas_ops_ldo9 = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static const struct regulator_ops palmas_ops_ext_control_ldo = {
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_ops palmas_ops_extreg = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
};
static const struct regulator_ops palmas_ops_ext_control_extreg = {
};
static const struct regulator_ops tps65917_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
static const struct regulator_ops tps65917_ops_ldo_1_2 = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static int palmas_regulator_config_external(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
int ret;
ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
reg_init->roof_floor, true);
if (ret < 0)
dev_err(palmas->dev,
"Ext control config for regulator %d failed %d\n",
id, ret);
return ret;
}
/*
* setup the hardware based sleep configuration of the SMPS/LDO regulators
* from the platform data. This is different to the software based control
* supported by the regulator framework as it is controlled by toggling
* pins on the PMIC such as PREQ, SYSEN, ...
*/
static int palmas_smps_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int reg;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
unsigned int addr = rinfo->ctrl_addr;
ret = palmas_smps_read(palmas, addr, ®);
if (ret)
return ret;
switch (id) {
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
if (reg_init->mode_sleep)
reg |= reg_init->mode_sleep <<
PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
break;
default:
if (reg_init->warm_reset)
reg |= PALMAS_SMPS12_CTRL_WR_S;
else
reg &= ~PALMAS_SMPS12_CTRL_WR_S;
if (reg_init->roof_floor)
reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
else
reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
if (reg_init->mode_sleep)
reg |= reg_init->mode_sleep <<
PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
}
ret = palmas_smps_write(palmas, addr, reg);
if (ret)
return ret;
if (rinfo->vsel_addr && reg_init->vsel) {
reg = reg_init->vsel;
ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
if (ret)
return ret;
}
if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
(id != PALMAS_REG_SMPS10_OUT2)) {
/* Enable externally controlled regulator */
ret = palmas_smps_read(palmas, addr, ®);
if (ret < 0)
return ret;
if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
reg |= SMPS_CTRL_MODE_ON;
ret = palmas_smps_write(palmas, addr, reg);
if (ret < 0)
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static int palmas_ldo_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int reg;
unsigned int addr;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
addr = rinfo->ctrl_addr;
ret = palmas_ldo_read(palmas, addr, ®);
if (ret)
return ret;
if (reg_init->warm_reset)
reg |= PALMAS_LDO1_CTRL_WR_S;
else
reg &= ~PALMAS_LDO1_CTRL_WR_S;
if (reg_init->mode_sleep)
reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
else
reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret)
return ret;
if (reg_init->roof_floor) {
/* Enable externally controlled regulator */
ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
PALMAS_LDO1_CTRL_MODE_ACTIVE);
if (ret < 0) {
dev_err(palmas->dev,
"LDO Register 0x%02x update failed %d\n",
addr, ret);
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static int palmas_extreg_init(struct palmas *palmas, int id,
struct palmas_reg_init *reg_init)
{
unsigned int addr;
int ret;
unsigned int val = 0;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
addr = rinfo->ctrl_addr;
if (reg_init->mode_sleep)
val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
if (ret < 0) {
dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
addr, ret);
return ret;
}
if (reg_init->roof_floor) {
/* Enable externally controlled regulator */
ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
PALMAS_REGEN1_CTRL_MODE_ACTIVE);
if (ret < 0) {
dev_err(palmas->dev,
"Resource Register 0x%02x update failed %d\n",
addr, ret);
return ret;
}
return palmas_regulator_config_external(palmas, id, reg_init);
}
return 0;
}
static void palmas_enable_ldo8_track(struct palmas *palmas)
{
unsigned int reg;
unsigned int addr;
int ret;
struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
struct palmas_regs_info *rinfo;
rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
addr = rinfo->ctrl_addr;
ret = palmas_ldo_read(palmas, addr, ®);
if (ret) {
dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
return;
}
reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret < 0) {
dev_err(palmas->dev, "Error in enabling tracking mode\n");
return;
}
/*
* When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
* output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
* and can be set from 0.45 to 1.65 V.
*/
addr = rinfo->vsel_addr;
ret = palmas_ldo_read(palmas, addr, ®);
if (ret) {
dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
return;
}
reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
ret = palmas_ldo_write(palmas, addr, reg);
if (ret < 0)
dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
return;
}
static int palmas_ldo_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
if (pdata && pdata->reg_init[id])
reg_init = pdata->reg_init[id];
else
reg_init = NULL;
rinfo = &ddata->palmas_regs_info[id];
/* Miss out regulators which are not available due
* to alternate functions.
*/
/* Register the regulators */
desc = &pmic->desc[id];
desc->name = rinfo->name;
desc->id = id;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (id < PALMAS_REG_REGEN1) {
desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_ldo;
else
desc->ops = &palmas_ops_ldo;
desc->min_uV = 900000;
desc->uV_step = 50000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
/* Check if LDO8 is in tracking mode or not */
if (pdata && (id == PALMAS_REG_LDO8) &&
pdata->enable_ldo8_tracking) {
palmas_enable_ldo8_track(pmic->palmas);
desc->min_uV = 450000;
desc->uV_step = 25000;
}
/* LOD6 in vibrator mode will have enable time 2000us */
if (pdata && pdata->ldo6_vibrator &&
(id == PALMAS_REG_LDO6))
desc->enable_time = 2000;
if (id == PALMAS_REG_LDO9) {
desc->ops = &palmas_ops_ldo9;
desc->bypass_reg = desc->enable_reg;
desc->bypass_val_on =
PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
desc->bypass_mask =
PALMAS_LDO9_CTRL_LDO_BYPASS_EN;
}
} else {
if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
continue;
desc->n_voltages = 1;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_extreg;
else
desc->ops = &palmas_ops_extreg;
desc->enable_reg =
PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
}
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
/* Initialise sleep/init values from platform data */
if (pdata) {
reg_init = pdata->reg_init[id];
if (reg_init) {
if (id <= ddata->ldo_end)
ret = palmas_ldo_init(pmic->palmas, id,
reg_init);
else
ret = palmas_extreg_init(pmic->palmas,
id, reg_init);
if (ret)
return ret;
}
}
}
return 0;
}
static int tps65917_ldo_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
if (pdata && pdata->reg_init[id])
reg_init = pdata->reg_init[id];
else
reg_init = NULL;
/* Miss out regulators which are not available due
* to alternate functions.
*/
rinfo = &ddata->palmas_regs_info[id];
/* Register the regulators */
desc = &pmic->desc[id];
desc->name = rinfo->name;
desc->id = id;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (id < TPS65917_REG_REGEN1) {
desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_ldo;
else
desc->ops = &tps65917_ops_ldo;
desc->min_uV = 900000;
desc->uV_step = 50000;
desc->linear_min_sel = 1;
desc->enable_time = 500;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
/*
* To be confirmed. Discussion on going with PMIC Team.
* It is of the order of ~60mV/uS.
*/
desc->ramp_delay = 2500;
if (id == TPS65917_REG_LDO1 ||
id == TPS65917_REG_LDO2) {
desc->ops = &tps65917_ops_ldo_1_2;
desc->bypass_reg = desc->enable_reg;
desc->bypass_val_on =
TPS65917_LDO1_CTRL_BYPASS_EN;
desc->bypass_mask =
TPS65917_LDO1_CTRL_BYPASS_EN;
}
} else {
desc->n_voltages = 1;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_extreg;
else
desc->ops = &palmas_ops_extreg;
desc->enable_reg =
PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
}
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
/* Initialise sleep/init values from platform data */
if (pdata) {
reg_init = pdata->reg_init[id];
if (reg_init) {
if (id < TPS65917_REG_REGEN1)
ret = palmas_ldo_init(pmic->palmas,
id, reg_init);
else
ret = palmas_extreg_init(pmic->palmas,
id, reg_init);
if (ret)
return ret;
}
}
}
return 0;
}
static int palmas_smps_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
unsigned int addr, reg;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
bool ramp_delay_support = false;
/*
* Miss out regulators which are not available due
* to slaving configurations.
*/
switch (id) {
case PALMAS_REG_SMPS12:
case PALMAS_REG_SMPS3:
if (pmic->smps123)
continue;
if (id == PALMAS_REG_SMPS12)
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS123:
if (!pmic->smps123)
continue;
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS45:
case PALMAS_REG_SMPS7:
if (pmic->smps457)
continue;
if (id == PALMAS_REG_SMPS45)
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS457:
if (!pmic->smps457)
continue;
ramp_delay_support = true;
break;
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
continue;
}
rinfo = &ddata->palmas_regs_info[id];
desc = &pmic->desc[id];
if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
ramp_delay_support = true;
if (ramp_delay_support) {
addr = rinfo->tstep_addr;
ret = palmas_smps_read(pmic->palmas, addr, ®);
if (ret < 0) {
dev_err(pmic->dev,
"reading TSTEP reg failed: %d\n", ret);
return ret;
}
desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
pmic->ramp_delay[id] = desc->ramp_delay;
}
/* Initialise sleep/init values from platform data */
if (pdata && pdata->reg_init[id]) {
reg_init = pdata->reg_init[id];
ret = palmas_smps_init(pmic->palmas, id, reg_init);
if (ret)
return ret;
} else {
reg_init = NULL;
}
/* Register the regulators */
desc->name = rinfo->name;
desc->id = id;
switch (id) {
case PALMAS_REG_SMPS10_OUT1:
case PALMAS_REG_SMPS10_OUT2:
desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
desc->ops = &palmas_ops_smps10;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
desc->vsel_mask = SMPS10_VSEL;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
if (id == PALMAS_REG_SMPS10_OUT1)
desc->enable_mask = SMPS10_SWITCH_EN;
else
desc->enable_mask = SMPS10_BOOST_EN;
desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
PALMAS_SMPS10_CTRL);
desc->bypass_val_on = SMPS10_BYPASS_EN;
desc->bypass_mask = SMPS10_BYPASS_EN;
desc->min_uV = 3750000;
desc->uV_step = 1250000;
break;
default:
/*
* Read and store the RANGE bit for later use
* This must be done before regulator is probed,
* otherwise we error in probe with unsupportable
* ranges. Read the current smps mode for later use.
*/
addr = rinfo->vsel_addr;
desc->n_linear_ranges = 3;
ret = palmas_smps_read(pmic->palmas, addr, ®);
if (ret)
return ret;
if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
pmic->range[id] = 1;
if (pmic->range[id])
desc->linear_ranges = smps_high_ranges;
else
desc->linear_ranges = smps_low_ranges;
if (reg_init && reg_init->roof_floor)
desc->ops = &palmas_ops_ext_control_smps;
else
desc->ops = &palmas_ops_smps;
desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
/* Read the smps mode for later use. */
addr = rinfo->ctrl_addr;
ret = palmas_smps_read(pmic->palmas, addr, ®);
if (ret)
return ret;
pmic->current_reg_mode[id] = reg &
PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
/* set_mode overrides this value */
desc->enable_val = SMPS_CTRL_MODE_ON;
}
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
}
return 0;
}
static int tps65917_smps_registration(struct palmas_pmic *pmic,
struct palmas_pmic_driver_data *ddata,
struct palmas_pmic_platform_data *pdata,
const char *pdev_name,
struct regulator_config config)
{
int id, ret;
unsigned int addr, reg;
struct regulator_dev *rdev;
struct palmas_reg_init *reg_init;
struct palmas_regs_info *rinfo;
struct regulator_desc *desc;
for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
/*
* Miss out regulators which are not available due
* to slaving configurations.
*/
desc = &pmic->desc[id];
desc->n_linear_ranges = 3;
if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) &&
pmic->smps12)
continue;
/* Initialise sleep/init values from platform data */
if (pdata && pdata->reg_init[id]) {
reg_init = pdata->reg_init[id];
ret = palmas_smps_init(pmic->palmas, id, reg_init);
if (ret)
return ret;
} else {
reg_init = NULL;
}
rinfo = &ddata->palmas_regs_info[id];
/* Register the regulators */
desc->name = rinfo->name;
desc->id = id;
/*
* Read and store the RANGE bit for later use
* This must be done before regulator is probed,
* otherwise we error in probe with unsupportable
* ranges. Read the current smps mode for later use.
*/
addr = rinfo->vsel_addr;
ret = palmas_smps_read(pmic->palmas, addr, ®);
if (ret)
return ret;
if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
pmic->range[id] = 1;
if (pmic->range[id])
desc->linear_ranges = smps_high_ranges;
else
desc->linear_ranges = smps_low_ranges;
if (reg_init && reg_init->roof_floor)
desc->ops = &tps65917_ops_ext_control_smps;
else
desc->ops = &tps65917_ops_smps;
desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->vsel_addr);
desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
desc->ramp_delay = 2500;
/* Read the smps mode for later use. */
addr = rinfo->ctrl_addr;
ret = palmas_smps_read(pmic->palmas, addr, ®);
if (ret)
return ret;
pmic->current_reg_mode[id] = reg &
PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
rinfo->ctrl_addr);
desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
/* set_mode overrides this value */
desc->enable_val = SMPS_CTRL_MODE_ON;
desc->type = REGULATOR_VOLTAGE;
desc->owner = THIS_MODULE;
if (pdata)
config.init_data = pdata->reg_data[id];
else
config.init_data = NULL;
desc->supply_name = rinfo->sname;
config.of_node = ddata->palmas_matches[id].of_node;
rdev = devm_regulator_register(pmic->dev, desc, &config);
if (IS_ERR(rdev)) {
dev_err(pmic->dev,
"failed to register %s regulator\n",
pdev_name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct of_regulator_match palmas_matches[] = {
{ .name = "smps12", },
{ .name = "smps123", },
{ .name = "smps3", },
{ .name = "smps45", },
{ .name = "smps457", },
{ .name = "smps6", },
{ .name = "smps7", },
{ .name = "smps8", },
{ .name = "smps9", },
{ .name = "smps10_out2", },
{ .name = "smps10_out1", },
{ .name = "ldo1", },
{ .name = "ldo2", },
{ .name = "ldo3", },
{ .name = "ldo4", },
{ .name = "ldo5", },
{ .name = "ldo6", },
{ .name = "ldo7", },
{ .name = "ldo8", },
{ .name = "ldo9", },
{ .name = "ldoln", },
{ .name = "ldousb", },
{ .name = "regen1", },
{ .name = "regen2", },
{ .name = "regen3", },
{ .name = "sysen1", },
{ .name = "sysen2", },
};
static struct of_regulator_match tps65917_matches[] = {
{ .name = "smps1", },
{ .name = "smps2", },
{ .name = "smps3", },
{ .name = "smps4", },
{ .name = "smps5", },
{ .name = "smps12",},
{ .name = "ldo1", },
{ .name = "ldo2", },
{ .name = "ldo3", },
{ .name = "ldo4", },
{ .name = "ldo5", },
{ .name = "regen1", },
{ .name = "regen2", },
{ .name = "regen3", },
{ .name = "sysen1", },
{ .name = "sysen2", },
};
static struct palmas_pmic_driver_data palmas_ddata = {
.smps_start = PALMAS_REG_SMPS12,
.smps_end = PALMAS_REG_SMPS10_OUT1,
.ldo_begin = PALMAS_REG_LDO1,
.ldo_end = PALMAS_REG_LDOUSB,
.max_reg = PALMAS_NUM_REGS,
.has_regen3 = true,
.palmas_regs_info = palmas_generic_regs_info,
.palmas_matches = palmas_matches,
.sleep_req_info = palma_sleep_req_info,
.smps_register = palmas_smps_registration,
.ldo_register = palmas_ldo_registration,
};
static struct palmas_pmic_driver_data tps65917_ddata = {
.smps_start = TPS65917_REG_SMPS1,
.smps_end = TPS65917_REG_SMPS12,
.ldo_begin = TPS65917_REG_LDO1,
.ldo_end = TPS65917_REG_LDO5,
.max_reg = TPS65917_NUM_REGS,
.has_regen3 = true,
.palmas_regs_info = tps65917_regs_info,
.palmas_matches = tps65917_matches,
.sleep_req_info = tps65917_sleep_req_info,
.smps_register = tps65917_smps_registration,
.ldo_register = tps65917_ldo_registration,
};
static int palmas_dt_to_pdata(struct device *dev,
struct device_node *node,
struct palmas_pmic_platform_data *pdata,
struct palmas_pmic_driver_data *ddata)
{
struct device_node *regulators;
u32 prop;
int idx, ret;
regulators = of_get_child_by_name(node, "regulators");
if (!regulators) {
dev_info(dev, "regulator node not found\n");
return 0;
}
ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
ddata->max_reg);
of_node_put(regulators);
if (ret < 0) {
dev_err(dev, "Error parsing regulator init data: %d\n", ret);
return 0;
}
for (idx = 0; idx < ddata->max_reg; idx++) {
struct of_regulator_match *match;
struct palmas_reg_init *rinit;
struct device_node *np;
match = &ddata->palmas_matches[idx];
np = match->of_node;
if (!match->init_data || !np)
continue;
rinit = devm_kzalloc(dev, sizeof(*rinit), GFP_KERNEL);
if (!rinit)
return -ENOMEM;
pdata->reg_data[idx] = match->init_data;
pdata->reg_init[idx] = rinit;
rinit->warm_reset = of_property_read_bool(np, "ti,warm-reset");
ret = of_property_read_u32(np, "ti,roof-floor", &prop);
/* EINVAL: Property not found */
if (ret != -EINVAL) {
int econtrol;
/* use default value, when no value is specified */
econtrol = PALMAS_EXT_CONTROL_NSLEEP;
if (!ret) {
switch (prop) {
case 1:
econtrol = PALMAS_EXT_CONTROL_ENABLE1;
break;
case 2:
econtrol = PALMAS_EXT_CONTROL_ENABLE2;
break;
case 3:
econtrol = PALMAS_EXT_CONTROL_NSLEEP;
break;
default:
WARN_ON(1);
dev_warn(dev,
"%s: Invalid roof-floor option: %u\n",
match->name, prop);
break;
}
}
rinit->roof_floor = econtrol;
}
ret = of_property_read_u32(np, "ti,mode-sleep", &prop);
if (!ret)
rinit->mode_sleep = prop;
ret = of_property_read_bool(np, "ti,smps-range");
if (ret)
rinit->vsel = PALMAS_SMPS12_VOLTAGE_RANGE;
if (idx == PALMAS_REG_LDO8)
pdata->enable_ldo8_tracking = of_property_read_bool(
np, "ti,enable-ldo8-tracking");
}
pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
return 0;
}
static const struct of_device_id of_palmas_match_tbl[] = {
{
.compatible = "ti,palmas-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6035-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6036-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,twl6037-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65913-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65914-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps80036-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps659038-pmic",
.data = &palmas_ddata,
},
{
.compatible = "ti,tps65917-pmic",
.data = &tps65917_ddata,
},
{ /* end */ }
};
static int palmas_regulators_probe(struct platform_device *pdev)
{
struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct device_node *node = pdev->dev.of_node;
struct palmas_pmic_driver_data *driver_data;
struct regulator_config config = { };
struct palmas_pmic *pmic;
const char *pdev_name;
const struct of_device_id *match;
int ret = 0;
unsigned int reg;
match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
if (!match)
return -ENODATA;
driver_data = (struct palmas_pmic_driver_data *)match->data;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
if (!pmic)
return -ENOMEM;
if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
TPS659038_REGEN2_CTRL;
palmas_ddata.has_regen3 = false;
}
pmic->dev = &pdev->dev;
pmic->palmas = palmas;
palmas->pmic = pmic;
platform_set_drvdata(pdev, pmic);
pmic->palmas->pmic_ddata = driver_data;
ret = palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
if (ret)
return ret;
ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®);
if (ret)
return ret;
if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) {
pmic->smps123 = 1;
pmic->smps12 = 1;
}
if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
pmic->smps457 = 1;
config.regmap = palmas->regmap[REGULATOR_SLAVE];
config.dev = &pdev->dev;
config.driver_data = pmic;
pdev_name = pdev->name;
ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
config);
if (ret)
return ret;
ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
config);
return ret;
}
static struct platform_driver palmas_driver = {
.driver = {
.name = "palmas-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_palmas_match_tbl,
},
.probe = palmas_regulators_probe,
};
static int __init palmas_init(void)
{
return platform_driver_register(&palmas_driver);
}
subsys_initcall(palmas_init);
static void __exit palmas_exit(void)
{
platform_driver_unregister(&palmas_driver);
}
module_exit(palmas_exit);
MODULE_AUTHOR("Graeme Gregory <[email protected]>");
MODULE_DESCRIPTION("Palmas voltage regulator driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:palmas-pmic");
MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
| linux-master | drivers/regulator/palmas-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 NXP
* Copyright (C) 2019 Boundary Devices
* Copyright (C) 2020 Amarula Solutions(India)
*/
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
/* registers */
#define PF8X00_DEVICEID 0x00
#define PF8X00_REVID 0x01
#define PF8X00_EMREV 0x02
#define PF8X00_PROGID 0x03
#define PF8X00_IMS_INT 0x04
#define PF8X00_IMS_THERM 0x07
#define PF8X00_SW_MODE_INT 0x0a
#define PF8X00_SW_MODE_MASK 0x0b
#define PF8X00_IMS_SW_ILIM 0x12
#define PF8X00_IMS_LDO_ILIM 0x15
#define PF8X00_IMS_SW_UV 0x18
#define PF8X00_IMS_SW_OV 0x1b
#define PF8X00_IMS_LDO_UV 0x1e
#define PF8X00_IMS_LDO_OV 0x21
#define PF8X00_IMS_PWRON 0x24
#define PF8X00_SYS_INT 0x27
#define PF8X00_HARD_FAULT 0x29
#define PF8X00_FSOB_FLAGS 0x2a
#define PF8X00_FSOB_SELECT 0x2b
#define PF8X00_ABIST_OV1 0x2c
#define PF8X00_ABIST_OV2 0x2d
#define PF8X00_ABIST_UV1 0x2e
#define PF8X00_ABIST_UV2 0x2f
#define PF8X00_TEST_FLAGS 0x30
#define PF8X00_ABIST_RUN 0x31
#define PF8X00_RANDOM_GEN 0x33
#define PF8X00_RANDOM_CHK 0x34
#define PF8X00_VMONEN1 0x35
#define PF8X00_VMONEN2 0x36
#define PF8X00_CTRL1 0x37
#define PF8X00_CTRL2 0x38
#define PF8X00_CTRL3 0x39
#define PF8X00_PWRUP_CTRL 0x3a
#define PF8X00_RESETBMCU 0x3c
#define PF8X00_PGOOD 0x3d
#define PF8X00_PWRDN_DLY1 0x3e
#define PF8X00_PWRDN_DLY2 0x3f
#define PF8X00_FREQ_CTRL 0x40
#define PF8X00_COINCELL_CTRL 0x41
#define PF8X00_PWRON 0x42
#define PF8X00_WD_CONFIG 0x43
#define PF8X00_WD_CLEAR 0x44
#define PF8X00_WD_EXPIRE 0x45
#define PF8X00_WD_COUNTER 0x46
#define PF8X00_FAULT_COUNTER 0x47
#define PF8X00_FSAFE_COUNTER 0x48
#define PF8X00_FAULT_TIMER 0x49
#define PF8X00_AMUX 0x4a
#define PF8X00_SW1_CONFIG1 0x4d
#define PF8X00_LDO1_CONFIG1 0x85
#define PF8X00_VSNVS_CONFIG1 0x9d
#define PF8X00_PAGE_SELECT 0x9f
/* regulators */
enum pf8x00_regulators {
PF8X00_LDO1,
PF8X00_LDO2,
PF8X00_LDO3,
PF8X00_LDO4,
PF8X00_BUCK1,
PF8X00_BUCK2,
PF8X00_BUCK3,
PF8X00_BUCK4,
PF8X00_BUCK5,
PF8X00_BUCK6,
PF8X00_BUCK7,
PF8X00_VSNVS,
PF8X00_MAX_REGULATORS,
};
enum pf8x00_buck_states {
SW_CONFIG1,
SW_CONFIG2,
SW_PWRUP,
SW_MODE1,
SW_RUN_VOLT,
SW_STBY_VOLT,
};
#define PF8X00_SW_BASE(i) (8 * (i - PF8X00_BUCK1) + PF8X00_SW1_CONFIG1)
enum pf8x00_ldo_states {
LDO_CONFIG1,
LDO_CONFIG2,
LDO_PWRUP,
LDO_RUN_VOLT,
LDO_STBY_VOLT,
};
#define PF8X00_LDO_BASE(i) (6 * (i - PF8X00_LDO1) + PF8X00_LDO1_CONFIG1)
enum swxilim_bits {
SWXILIM_2100_MA,
SWXILIM_2600_MA,
SWXILIM_3000_MA,
SWXILIM_4500_MA,
};
#define PF8X00_SWXILIM_SHIFT 3
#define PF8X00_SWXILIM_MASK GENMASK(4, 3)
#define PF8X00_SWXPHASE_MASK GENMASK(2, 0)
#define PF8X00_SWXPHASE_SHIFT 7
enum pf8x00_devid {
PF8100 = 0x0,
PF8121A = BIT(1),
PF8200 = BIT(3),
};
#define PF8X00_FAM BIT(6)
#define PF8X00_DEVICE_FAM_MASK GENMASK(7, 4)
#define PF8X00_DEVICE_ID_MASK GENMASK(3, 0)
struct pf8x00_regulator_data {
struct regulator_desc desc;
unsigned int suspend_enable_reg;
unsigned int suspend_enable_mask;
unsigned int suspend_voltage_reg;
unsigned int suspend_voltage_cache;
};
struct pf8x00_chip {
struct regmap *regmap;
struct device *dev;
};
static const struct regmap_config pf8x00_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = PF8X00_PAGE_SELECT,
.cache_type = REGCACHE_RBTREE,
};
/* VLDOx output: 1.5V to 5.0V */
static const int pf8x00_ldo_voltages[] = {
1500000, 1600000, 1800000, 1850000, 2150000, 2500000, 2800000, 3000000,
3100000, 3150000, 3200000, 3300000, 3350000, 1650000, 1700000, 5000000,
};
/* Output: 2.1A to 4.5A */
static const unsigned int pf8x00_sw_current_table[] = {
2100000, 2600000, 3000000, 4500000,
};
/* Output: 0.4V to 1.8V */
#define PF8XOO_SW1_6_VOLTAGE_NUM 0xB2
static const struct linear_range pf8x00_sw1_to_6_voltages[] = {
REGULATOR_LINEAR_RANGE(400000, 0x00, 0xB0, 6250),
REGULATOR_LINEAR_RANGE(1800000, 0xB1, 0xB1, 0),
};
/* Output: 1.0V to 4.1V */
static const int pf8x00_sw7_voltages[] = {
1000000, 1100000, 1200000, 1250000, 1300000, 1350000, 1500000, 1600000,
1800000, 1850000, 2000000, 2100000, 2150000, 2250000, 2300000, 2400000,
2500000, 2800000, 3150000, 3200000, 3250000, 3300000, 3350000, 3400000,
3500000, 3800000, 4000000, 4100000, 4100000, 4100000, 4100000, 4100000,
};
/* Output: 1.8V, 3.0V, or 3.3V */
static const int pf8x00_vsnvs_voltages[] = {
0, 1800000, 3000000, 3300000,
};
static void swxilim_select(struct pf8x00_chip *chip, int id, int ilim)
{
u8 ilim_sel;
u8 reg = PF8X00_SW_BASE(id) + SW_CONFIG2;
switch (ilim) {
case 2100:
ilim_sel = SWXILIM_2100_MA;
break;
case 2600:
ilim_sel = SWXILIM_2600_MA;
break;
case 3000:
ilim_sel = SWXILIM_3000_MA;
break;
case 4500:
ilim_sel = SWXILIM_4500_MA;
break;
default:
ilim_sel = SWXILIM_2100_MA;
break;
}
regmap_update_bits(chip->regmap, reg,
PF8X00_SWXILIM_MASK,
ilim_sel << PF8X00_SWXILIM_SHIFT);
}
static void handle_ilim_property(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct pf8x00_chip *chip = config->driver_data;
int ret;
int val;
if ((desc->id >= PF8X00_BUCK1) && (desc->id <= PF8X00_BUCK7)) {
ret = of_property_read_u32(np, "nxp,ilim-ma", &val);
if (ret) {
dev_dbg(chip->dev, "unspecified ilim for BUCK%d, use value stored in OTP\n",
desc->id - PF8X00_LDO4);
return;
}
dev_warn(chip->dev, "nxp,ilim-ma is deprecated, please use regulator-max-microamp\n");
swxilim_select(chip, desc->id, val);
} else
dev_warn(chip->dev, "nxp,ilim-ma used with incorrect regulator (%d)\n", desc->id);
}
static void handle_shift_property(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
unsigned char id = desc->id - PF8X00_LDO4;
unsigned char reg = PF8X00_SW_BASE(id) + SW_CONFIG2;
struct pf8x00_chip *chip = config->driver_data;
int phase;
int val;
int ret;
if ((desc->id >= PF8X00_BUCK1) && (desc->id <= PF8X00_BUCK7)) {
ret = of_property_read_u32(np, "nxp,phase-shift", &val);
if (ret) {
dev_dbg(chip->dev,
"unspecified phase-shift for BUCK%d, using OTP configuration\n",
id);
return;
}
if (val < 0 || val > 315 || val % 45 != 0) {
dev_warn(config->dev,
"invalid phase_shift %d for BUCK%d, using OTP configuration\n",
val, id);
return;
}
phase = val / 45;
if (phase >= 1)
phase -= 1;
else
phase = PF8X00_SWXPHASE_SHIFT;
regmap_update_bits(chip->regmap, reg,
PF8X00_SWXPHASE_MASK,
phase);
} else
dev_warn(chip->dev, "nxp,phase-shift used with incorrect regulator (%d)\n", id);
}
static int pf8x00_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
handle_ilim_property(np, desc, config);
handle_shift_property(np, desc, config);
return 0;
}
static int pf8x00_suspend_enable(struct regulator_dev *rdev)
{
struct pf8x00_regulator_data *regl = rdev_get_drvdata(rdev);
struct regmap *rmap = rdev_get_regmap(rdev);
return regmap_update_bits(rmap, regl->suspend_enable_reg,
regl->suspend_enable_mask,
regl->suspend_enable_mask);
}
static int pf8x00_suspend_disable(struct regulator_dev *rdev)
{
struct pf8x00_regulator_data *regl = rdev_get_drvdata(rdev);
struct regmap *rmap = rdev_get_regmap(rdev);
return regmap_update_bits(rmap, regl->suspend_enable_reg,
regl->suspend_enable_mask, 0);
}
static int pf8x00_set_suspend_voltage(struct regulator_dev *rdev, int uV)
{
struct pf8x00_regulator_data *regl = rdev_get_drvdata(rdev);
int ret;
if (regl->suspend_voltage_cache == uV)
return 0;
ret = regulator_map_voltage_iterate(rdev, uV, uV);
if (ret < 0) {
dev_err(rdev_get_dev(rdev), "failed to map %i uV\n", uV);
return ret;
}
dev_dbg(rdev_get_dev(rdev), "uV: %i, reg: 0x%x, msk: 0x%x, val: 0x%x\n",
uV, regl->suspend_voltage_reg, regl->desc.vsel_mask, ret);
ret = regmap_update_bits(rdev->regmap, regl->suspend_voltage_reg,
regl->desc.vsel_mask, ret);
if (ret < 0) {
dev_err(rdev_get_dev(rdev), "failed to set %i uV\n", uV);
return ret;
}
regl->suspend_voltage_cache = uV;
return 0;
}
static const struct regulator_ops pf8x00_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_suspend_enable = pf8x00_suspend_enable,
.set_suspend_disable = pf8x00_suspend_disable,
.set_suspend_voltage = pf8x00_set_suspend_voltage,
};
static const struct regulator_ops pf8x00_buck1_6_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.set_suspend_enable = pf8x00_suspend_enable,
.set_suspend_disable = pf8x00_suspend_disable,
.set_suspend_voltage = pf8x00_set_suspend_voltage,
};
static const struct regulator_ops pf8x00_buck7_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.set_suspend_enable = pf8x00_suspend_enable,
.set_suspend_disable = pf8x00_suspend_disable,
};
static const struct regulator_ops pf8x00_vsnvs_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
};
#define PF8X00LDO(_id, _name, base, voltages) \
[PF8X00_LDO ## _id] = { \
.desc = { \
.name = _name, \
.of_match = _name, \
.regulators_node = "regulators", \
.n_voltages = ARRAY_SIZE(voltages), \
.ops = &pf8x00_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PF8X00_LDO ## _id, \
.owner = THIS_MODULE, \
.volt_table = voltages, \
.vsel_reg = (base) + LDO_RUN_VOLT, \
.vsel_mask = 0xff, \
.enable_reg = (base) + LDO_CONFIG2, \
.enable_val = 0x2, \
.disable_val = 0x0, \
.enable_mask = 2, \
}, \
.suspend_enable_reg = (base) + LDO_CONFIG2, \
.suspend_enable_mask = 1, \
.suspend_voltage_reg = (base) + LDO_STBY_VOLT, \
}
#define PF8X00BUCK(_id, _name, base, voltages) \
[PF8X00_BUCK ## _id] = { \
.desc = { \
.name = _name, \
.of_match = _name, \
.regulators_node = "regulators", \
.of_parse_cb = pf8x00_of_parse_cb, \
.n_voltages = PF8XOO_SW1_6_VOLTAGE_NUM, \
.ops = &pf8x00_buck1_6_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PF8X00_BUCK ## _id, \
.owner = THIS_MODULE, \
.ramp_delay = 19000, \
.linear_ranges = pf8x00_sw1_to_6_voltages, \
.n_linear_ranges = \
ARRAY_SIZE(pf8x00_sw1_to_6_voltages), \
.vsel_reg = (base) + SW_RUN_VOLT, \
.vsel_mask = 0xff, \
.curr_table = pf8x00_sw_current_table, \
.n_current_limits = \
ARRAY_SIZE(pf8x00_sw_current_table), \
.csel_reg = (base) + SW_CONFIG2, \
.csel_mask = PF8X00_SWXILIM_MASK, \
.enable_reg = (base) + SW_MODE1, \
.enable_val = 0x3, \
.disable_val = 0x0, \
.enable_mask = 0x3, \
.enable_time = 500, \
}, \
.suspend_enable_reg = (base) + SW_MODE1, \
.suspend_enable_mask = 0xc, \
.suspend_voltage_reg = (base) + SW_STBY_VOLT, \
}
#define PF8X00BUCK7(_name, base, voltages) \
[PF8X00_BUCK7] = { \
.desc = { \
.name = _name, \
.of_match = _name, \
.regulators_node = "regulators", \
.of_parse_cb = pf8x00_of_parse_cb, \
.n_voltages = ARRAY_SIZE(voltages), \
.ops = &pf8x00_buck7_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PF8X00_BUCK7, \
.owner = THIS_MODULE, \
.ramp_delay = 19000, \
.volt_table = voltages, \
.vsel_reg = (base) + SW_RUN_VOLT, \
.vsel_mask = 0xff, \
.curr_table = pf8x00_sw_current_table, \
.n_current_limits = \
ARRAY_SIZE(pf8x00_sw_current_table), \
.csel_reg = (base) + SW_CONFIG2, \
.csel_mask = PF8X00_SWXILIM_MASK, \
.enable_reg = (base) + SW_MODE1, \
.enable_val = 0x3, \
.disable_val = 0x0, \
.enable_mask = 0x3, \
.enable_time = 500, \
}, \
}
#define PF8X00VSNVS(_name, base, voltages) \
[PF8X00_VSNVS] = { \
.desc = { \
.name = _name, \
.of_match = _name, \
.regulators_node = "regulators", \
.n_voltages = ARRAY_SIZE(voltages), \
.ops = &pf8x00_vsnvs_ops, \
.type = REGULATOR_VOLTAGE, \
.id = PF8X00_VSNVS, \
.owner = THIS_MODULE, \
.volt_table = voltages, \
.vsel_reg = (base), \
.vsel_mask = 0x3, \
}, \
}
static struct pf8x00_regulator_data pf8x00_regs_data[PF8X00_MAX_REGULATORS] = {
PF8X00LDO(1, "ldo1", PF8X00_LDO_BASE(PF8X00_LDO1), pf8x00_ldo_voltages),
PF8X00LDO(2, "ldo2", PF8X00_LDO_BASE(PF8X00_LDO2), pf8x00_ldo_voltages),
PF8X00LDO(3, "ldo3", PF8X00_LDO_BASE(PF8X00_LDO3), pf8x00_ldo_voltages),
PF8X00LDO(4, "ldo4", PF8X00_LDO_BASE(PF8X00_LDO4), pf8x00_ldo_voltages),
PF8X00BUCK(1, "buck1", PF8X00_SW_BASE(PF8X00_BUCK1), pf8x00_sw1_to_6_voltages),
PF8X00BUCK(2, "buck2", PF8X00_SW_BASE(PF8X00_BUCK2), pf8x00_sw1_to_6_voltages),
PF8X00BUCK(3, "buck3", PF8X00_SW_BASE(PF8X00_BUCK3), pf8x00_sw1_to_6_voltages),
PF8X00BUCK(4, "buck4", PF8X00_SW_BASE(PF8X00_BUCK4), pf8x00_sw1_to_6_voltages),
PF8X00BUCK(5, "buck5", PF8X00_SW_BASE(PF8X00_BUCK5), pf8x00_sw1_to_6_voltages),
PF8X00BUCK(6, "buck6", PF8X00_SW_BASE(PF8X00_BUCK6), pf8x00_sw1_to_6_voltages),
PF8X00BUCK7("buck7", PF8X00_SW_BASE(PF8X00_BUCK7), pf8x00_sw7_voltages),
PF8X00VSNVS("vsnvs", PF8X00_VSNVS_CONFIG1, pf8x00_vsnvs_voltages),
};
static int pf8x00_identify(struct pf8x00_chip *chip)
{
unsigned int value;
u8 dev_fam, dev_id;
const char *name = NULL;
int ret;
ret = regmap_read(chip->regmap, PF8X00_DEVICEID, &value);
if (ret) {
dev_err(chip->dev, "failed to read chip family\n");
return ret;
}
dev_fam = value & PF8X00_DEVICE_FAM_MASK;
switch (dev_fam) {
case PF8X00_FAM:
break;
default:
dev_err(chip->dev,
"Chip 0x%x is not from PF8X00 family\n", dev_fam);
return ret;
}
dev_id = value & PF8X00_DEVICE_ID_MASK;
switch (dev_id) {
case PF8100:
name = "PF8100";
break;
case PF8121A:
name = "PF8121A";
break;
case PF8200:
name = "PF8200";
break;
default:
dev_err(chip->dev, "Unknown pf8x00 device id 0x%x\n", dev_id);
return -ENODEV;
}
dev_info(chip->dev, "%s PMIC found.\n", name);
return 0;
}
static int pf8x00_i2c_probe(struct i2c_client *client)
{
struct regulator_config config = { NULL, };
struct pf8x00_chip *chip;
int id;
int ret;
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
i2c_set_clientdata(client, chip);
chip->dev = &client->dev;
chip->regmap = devm_regmap_init_i2c(client, &pf8x00_regmap_config);
if (IS_ERR(chip->regmap)) {
ret = PTR_ERR(chip->regmap);
dev_err(&client->dev,
"regmap allocation failed with err %d\n", ret);
return ret;
}
ret = pf8x00_identify(chip);
if (ret)
return ret;
for (id = 0; id < ARRAY_SIZE(pf8x00_regs_data); id++) {
struct pf8x00_regulator_data *data = &pf8x00_regs_data[id];
struct regulator_dev *rdev;
config.dev = chip->dev;
config.driver_data = data;
config.regmap = chip->regmap;
rdev = devm_regulator_register(&client->dev, &data->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&client->dev,
"failed to register %s regulator\n", data->desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct of_device_id pf8x00_dt_ids[] = {
{ .compatible = "nxp,pf8100",},
{ .compatible = "nxp,pf8121a",},
{ .compatible = "nxp,pf8200",},
{ }
};
MODULE_DEVICE_TABLE(of, pf8x00_dt_ids);
static const struct i2c_device_id pf8x00_i2c_id[] = {
{ "pf8100", 0 },
{ "pf8121a", 0 },
{ "pf8200", 0 },
{},
};
MODULE_DEVICE_TABLE(i2c, pf8x00_i2c_id);
static struct i2c_driver pf8x00_regulator_driver = {
.id_table = pf8x00_i2c_id,
.driver = {
.name = "pf8x00",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = pf8x00_dt_ids,
},
.probe = pf8x00_i2c_probe,
};
module_i2c_driver(pf8x00_regulator_driver);
MODULE_AUTHOR("Jagan Teki <[email protected]>");
MODULE_AUTHOR("Troy Kisky <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for NXP's PF8100/PF8121A/PF8200 PMIC");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/pf8x00-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2019 MediaTek Inc.
#include <linux/mfd/mt6358/registers.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6358-regulator.h>
#include <linux/regulator/of_regulator.h>
#define MT6358_BUCK_MODE_AUTO 0
#define MT6358_BUCK_MODE_FORCE_PWM 1
/*
* MT6358 regulators' information
*
* @desc: standard fields of regulator description.
* @qi: Mask for query enable signal status of regulators
*/
struct mt6358_regulator_info {
struct regulator_desc desc;
u32 status_reg;
u32 qi;
const u32 *index_table;
unsigned int n_table;
u32 da_vsel_reg;
u32 da_vsel_mask;
u32 modeset_reg;
u32 modeset_mask;
};
#define to_regulator_info(x) container_of((x), struct mt6358_regulator_info, desc)
#define MT6358_BUCK(match, vreg, min, max, step, \
vosel_mask, _da_vsel_reg, _da_vsel_mask, \
_modeset_reg, _modeset_shift) \
[MT6358_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
.vsel_mask = vosel_mask, \
.enable_reg = MT6358_BUCK_##vreg##_CON0, \
.enable_mask = BIT(0), \
.of_map_mode = mt6358_map_mode, \
}, \
.status_reg = MT6358_BUCK_##vreg##_DBG1, \
.qi = BIT(0), \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
}
#define MT6358_LDO(match, vreg, ldo_volt_table, \
ldo_index_table, enreg, enbit, vosel, \
vosel_mask) \
[MT6358_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(ldo_volt_table), \
.volt_table = ldo_volt_table, \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.status_reg = MT6358_LDO_##vreg##_CON1, \
.qi = BIT(15), \
.index_table = ldo_index_table, \
.n_table = ARRAY_SIZE(ldo_index_table), \
}
#define MT6358_LDO1(match, vreg, min, max, step, \
_da_vsel_reg, _da_vsel_mask, \
vosel, vosel_mask) \
[MT6358_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = MT6358_LDO_##vreg##_CON0, \
.enable_mask = BIT(0), \
}, \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.status_reg = MT6358_LDO_##vreg##_DBG1, \
.qi = BIT(0), \
}
#define MT6358_REG_FIXED(match, vreg, \
enreg, enbit, volt) \
[MT6358_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
.min_uV = volt, \
}, \
.status_reg = MT6358_LDO_##vreg##_CON1, \
.qi = BIT(15), \
}
#define MT6366_BUCK(match, vreg, min, max, step, \
vosel_mask, _da_vsel_reg, _da_vsel_mask, \
_modeset_reg, _modeset_shift) \
[MT6366_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6366_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = MT6358_BUCK_##vreg##_ELR0, \
.vsel_mask = vosel_mask, \
.enable_reg = MT6358_BUCK_##vreg##_CON0, \
.enable_mask = BIT(0), \
.of_map_mode = mt6358_map_mode, \
}, \
.status_reg = MT6358_BUCK_##vreg##_DBG1, \
.qi = BIT(0), \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
}
#define MT6366_LDO(match, vreg, ldo_volt_table, \
ldo_index_table, enreg, enbit, vosel, \
vosel_mask) \
[MT6366_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6366_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(ldo_volt_table), \
.volt_table = ldo_volt_table, \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.status_reg = MT6358_LDO_##vreg##_CON1, \
.qi = BIT(15), \
.index_table = ldo_index_table, \
.n_table = ARRAY_SIZE(ldo_index_table), \
}
#define MT6366_LDO1(match, vreg, min, max, step, \
_da_vsel_reg, _da_vsel_mask, \
vosel, vosel_mask) \
[MT6366_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6366_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.uV_step = (step), \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = MT6358_LDO_##vreg##_CON0, \
.enable_mask = BIT(0), \
}, \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.status_reg = MT6358_LDO_##vreg##_DBG1, \
.qi = BIT(0), \
}
#define MT6366_REG_FIXED(match, vreg, \
enreg, enbit, volt) \
[MT6366_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6366_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
.min_uV = volt, \
}, \
.status_reg = MT6358_LDO_##vreg##_CON1, \
.qi = BIT(15), \
}
static const unsigned int vdram2_voltages[] = {
600000, 1800000,
};
static const unsigned int vsim_voltages[] = {
1700000, 1800000, 2700000, 3000000, 3100000,
};
static const unsigned int vibr_voltages[] = {
1200000, 1300000, 1500000, 1800000,
2000000, 2800000, 3000000, 3300000,
};
static const unsigned int vusb_voltages[] = {
3000000, 3100000,
};
static const unsigned int vcamd_voltages[] = {
900000, 1000000, 1100000, 1200000,
1300000, 1500000, 1800000,
};
static const unsigned int vefuse_voltages[] = {
1700000, 1800000, 1900000,
};
static const unsigned int vmch_vemc_voltages[] = {
2900000, 3000000, 3300000,
};
static const unsigned int vcama_voltages[] = {
1800000, 2500000, 2700000,
2800000, 2900000, 3000000,
};
static const unsigned int vcn33_voltages[] = {
3300000, 3400000, 3500000,
};
static const unsigned int vmc_voltages[] = {
1800000, 2900000, 3000000, 3300000,
};
static const unsigned int vldo28_voltages[] = {
2800000, 3000000,
};
static const u32 vdram2_idx[] = {
0, 12,
};
static const u32 vsim_idx[] = {
3, 4, 8, 11, 12,
};
static const u32 vibr_idx[] = {
0, 1, 2, 4, 5, 9, 11, 13,
};
static const u32 vusb_idx[] = {
3, 4,
};
static const u32 vcamd_idx[] = {
3, 4, 5, 6, 7, 9, 12,
};
static const u32 vefuse_idx[] = {
11, 12, 13,
};
static const u32 vmch_vemc_idx[] = {
2, 3, 5,
};
static const u32 vcama_idx[] = {
0, 7, 9, 10, 11, 12,
};
static const u32 vcn33_idx[] = {
1, 2, 3,
};
static const u32 vmc_idx[] = {
4, 10, 11, 13,
};
static const u32 vldo28_idx[] = {
1, 3,
};
static unsigned int mt6358_map_mode(unsigned int mode)
{
return mode == MT6358_BUCK_MODE_AUTO ?
REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;
}
static int mt6358_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int idx, ret;
const u32 *pvol;
pvol = info->index_table;
idx = pvol[selector];
idx <<= ffs(info->desc.vsel_mask) - 1;
ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg,
info->desc.vsel_mask, idx);
return ret;
}
static int mt6358_get_voltage_sel(struct regulator_dev *rdev)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int idx, ret;
u32 selector;
const u32 *pvol;
ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector);
if (ret != 0) {
dev_info(&rdev->dev,
"Failed to get mt6358 %s vsel reg: %d\n",
info->desc.name, ret);
return ret;
}
selector = (selector & info->desc.vsel_mask) >>
(ffs(info->desc.vsel_mask) - 1);
pvol = info->index_table;
for (idx = 0; idx < info->desc.n_voltages; idx++) {
if (pvol[idx] == selector)
return idx;
}
return -EINVAL;
}
static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int ret, regval;
ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6358 Buck %s vsel reg: %d\n",
info->desc.name, ret);
return ret;
}
ret = (regval & info->da_vsel_mask) >> (ffs(info->da_vsel_mask) - 1);
return ret;
}
static int mt6358_get_status(struct regulator_dev *rdev)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int ret;
u32 regval;
ret = regmap_read(rdev->regmap, info->status_reg, ®val);
if (ret != 0) {
dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}
return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
}
static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = MT6358_BUCK_MODE_FORCE_PWM;
break;
case REGULATOR_MODE_NORMAL:
val = MT6358_BUCK_MODE_AUTO;
break;
default:
return -EINVAL;
}
dev_dbg(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x\n",
info->modeset_reg, info->modeset_mask, val);
val <<= ffs(info->modeset_mask) - 1;
return regmap_update_bits(rdev->regmap, info->modeset_reg,
info->modeset_mask, val);
}
static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
{
const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
int ret, regval;
ret = regmap_read(rdev->regmap, info->modeset_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6358 buck mode: %d\n", ret);
return ret;
}
switch ((regval & info->modeset_mask) >> (ffs(info->modeset_mask) - 1)) {
case MT6358_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
case MT6358_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
default:
return -EINVAL;
}
}
static const struct regulator_ops mt6358_volt_range_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = mt6358_get_buck_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
.set_mode = mt6358_regulator_set_mode,
.get_mode = mt6358_regulator_get_mode,
};
static const struct regulator_ops mt6358_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = mt6358_set_voltage_sel,
.get_voltage_sel = mt6358_get_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
};
static const struct regulator_ops mt6358_volt_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
};
/* The array is indexed by id(MT6358_ID_XXX) */
static const struct mt6358_regulator_info mt6358_regulators[] = {
MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
MT6358_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
MT6358_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
MT6358_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
MT6358_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
MT6358_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
MT6358_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
MT6358_REG_FIXED("ldo_vrf12", VRF12,
MT6358_LDO_VRF12_CON0, 0, 1200000),
MT6358_REG_FIXED("ldo_vio18", VIO18,
MT6358_LDO_VIO18_CON0, 0, 1800000),
MT6358_REG_FIXED("ldo_vcamio", VCAMIO,
MT6358_LDO_VCAMIO_CON0, 0, 1800000),
MT6358_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),
MT6358_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),
MT6358_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),
MT6358_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),
MT6358_REG_FIXED("ldo_vaux18", VAUX18,
MT6358_LDO_VAUX18_CON0, 0, 1800000),
MT6358_REG_FIXED("ldo_vbif28", VBIF28,
MT6358_LDO_VBIF28_CON0, 0, 2800000),
MT6358_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),
MT6358_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),
MT6358_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),
MT6358_REG_FIXED("ldo_vaud28", VAUD28,
MT6358_LDO_VAUD28_CON0, 0, 2800000),
MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf),
MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,
MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
MT6358_LDO("ldo_vcamd", VCAMD, vcamd_voltages, vcamd_idx,
MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,
MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,
MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
MT6358_LDO("ldo_vcama1", VCAMA1, vcama_voltages, vcama_idx,
MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,
MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
MT6358_LDO("ldo_vcn33", VCN33, vcn33_voltages, vcn33_idx,
MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
MT6358_LDO("ldo_vcama2", VCAMA2, vcama_voltages, vcama_idx,
MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,
MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
MT6358_LDO("ldo_vldo28", VLDO28, vldo28_voltages, vldo28_idx,
MT6358_LDO_VLDO28_CON0_0, 0,
MT6358_VLDO28_ANA_CON0, 0x300),
MT6358_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,
MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
};
/* The array is indexed by id(MT6366_ID_XXX) */
static const struct mt6358_regulator_info mt6366_regulators[] = {
MT6366_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
MT6366_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
MT6366_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
MT6366_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
MT6366_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
MT6366_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
MT6366_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
MT6366_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
MT6366_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
MT6366_REG_FIXED("ldo_vrf12", VRF12,
MT6358_LDO_VRF12_CON0, 0, 1200000),
MT6366_REG_FIXED("ldo_vio18", VIO18,
MT6358_LDO_VIO18_CON0, 0, 1800000),
MT6366_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),
MT6366_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),
MT6366_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),
MT6366_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),
MT6366_REG_FIXED("ldo_vaux18", VAUX18,
MT6358_LDO_VAUX18_CON0, 0, 1800000),
MT6366_REG_FIXED("ldo_vbif28", VBIF28,
MT6358_LDO_VBIF28_CON0, 0, 2800000),
MT6366_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),
MT6366_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),
MT6366_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),
MT6366_REG_FIXED("ldo_vaud28", VAUD28,
MT6358_LDO_VAUD28_CON0, 0, 2800000),
MT6366_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,
MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10),
MT6366_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,
MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
MT6366_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,
MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
MT6366_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,
MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
MT6366_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,
MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
MT6366_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,
MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
MT6366_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,
MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
MT6366_LDO("ldo_vcn33", VCN33, vcn33_voltages, vcn33_idx,
MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
MT6366_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,
MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
MT6366_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,
MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
MT6366_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
MT6366_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
MT6366_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
MT6366_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
};
static int mt6358_sync_vcn33_setting(struct device *dev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(dev->parent);
unsigned int val;
int ret;
/*
* VCN33_WIFI and VCN33_BT are two separate enable bits for the same
* regulator. They share the same voltage setting and output pin.
* Instead of having two potentially conflicting regulators, just have
* one VCN33 regulator. Sync the two enable bits and only use one in
* the regulator device.
*/
ret = regmap_read(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, &val);
if (ret) {
dev_err(dev, "Failed to read VCN33_WIFI setting\n");
return ret;
}
if (!(val & BIT(0)))
return 0;
/* Sync VCN33_WIFI enable status to VCN33_BT */
ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_0, BIT(0), BIT(0));
if (ret) {
dev_err(dev, "Failed to sync VCN33_WIFI setting to VCN33_BT\n");
return ret;
}
/* Disable VCN33_WIFI */
ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, BIT(0), 0);
if (ret) {
dev_err(dev, "Failed to disable VCN33_WIFI\n");
return ret;
}
return 0;
}
static int mt6358_regulator_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rdev;
const struct mt6358_regulator_info *mt6358_info;
int i, max_regulator, ret;
if (mt6397->chip_id == MT6366_CHIP_ID) {
max_regulator = MT6366_MAX_REGULATOR;
mt6358_info = mt6366_regulators;
} else {
max_regulator = MT6358_MAX_REGULATOR;
mt6358_info = mt6358_regulators;
}
ret = mt6358_sync_vcn33_setting(&pdev->dev);
if (ret)
return ret;
for (i = 0; i < max_regulator; i++) {
config.dev = &pdev->dev;
config.regmap = mt6397->regmap;
rdev = devm_regulator_register(&pdev->dev,
&mt6358_info[i].desc,
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",
mt6358_info[i].desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id mt6358_platform_ids[] = {
{"mt6358-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
static struct platform_driver mt6358_regulator_driver = {
.driver = {
.name = "mt6358-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = mt6358_regulator_probe,
.id_table = mt6358_platform_ids,
};
module_platform_driver(mt6358_regulator_driver);
MODULE_AUTHOR("Hsin-Hsiung Wang <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/mt6358-regulator.c |
// SPDX-License-Identifier: GPL-2.0
/*
* ROHM BD9571MWV-M and BD9574MWF-M regulator driver
*
* Copyright (C) 2017 Marek Vasut <[email protected]>
*
* Based on the TPS65086 driver
*
* NOTE: VD09 is missing
*/
#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/bd9571mwv.h>
struct bd9571mwv_reg {
struct regmap *regmap;
/* DDR Backup Power */
u8 bkup_mode_cnt_keepon; /* from "rohm,ddr-backup-power" */
u8 bkup_mode_cnt_saved;
bool bkup_mode_enabled;
/* Power switch type */
bool rstbmode_level;
bool rstbmode_pulse;
};
enum bd9571mwv_regulators { VD09, VD18, VD25, VD33, DVFS };
#define BD9571MWV_REG(_name, _of, _id, _ops, _vr, _vm, _nv, _min, _step, _lmin)\
{ \
.name = _name, \
.of_match = of_match_ptr(_of), \
.regulators_node = "regulators", \
.id = _id, \
.ops = &_ops, \
.n_voltages = _nv, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = _vm, \
.min_uV = _min, \
.uV_step = _step, \
.linear_min_sel = _lmin, \
}
static int bd9571mwv_avs_get_moni_state(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = regmap_read(rdev->regmap, BD9571MWV_AVS_SET_MONI, &val);
if (ret != 0)
return ret;
return val & BD9571MWV_AVS_SET_MONI_MASK;
}
static int bd9571mwv_avs_set_voltage_sel_regmap(struct regulator_dev *rdev,
unsigned int sel)
{
int ret;
ret = bd9571mwv_avs_get_moni_state(rdev);
if (ret < 0)
return ret;
return regmap_write_bits(rdev->regmap, BD9571MWV_AVS_VD09_VID(ret),
rdev->desc->vsel_mask, sel);
}
static int bd9571mwv_avs_get_voltage_sel_regmap(struct regulator_dev *rdev)
{
unsigned int val;
int ret;
ret = bd9571mwv_avs_get_moni_state(rdev);
if (ret < 0)
return ret;
ret = regmap_read(rdev->regmap, BD9571MWV_AVS_VD09_VID(ret), &val);
if (ret != 0)
return ret;
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
return val;
}
static int bd9571mwv_reg_set_voltage_sel_regmap(struct regulator_dev *rdev,
unsigned int sel)
{
return regmap_write_bits(rdev->regmap, BD9571MWV_DVFS_SETVID,
rdev->desc->vsel_mask, sel);
}
/* Operations permitted on AVS voltage regulator */
static const struct regulator_ops avs_ops = {
.set_voltage_sel = bd9571mwv_avs_set_voltage_sel_regmap,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = bd9571mwv_avs_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
/* Operations permitted on voltage regulators */
static const struct regulator_ops reg_ops = {
.set_voltage_sel = bd9571mwv_reg_set_voltage_sel_regmap,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
/* Operations permitted on voltage monitors */
static const struct regulator_ops vid_ops = {
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_desc regulators[] = {
BD9571MWV_REG("VD09", "vd09", VD09, avs_ops, 0, 0x7f,
0x6f, 600000, 10000, 0x3c),
BD9571MWV_REG("VD18", "vd18", VD18, vid_ops, BD9571MWV_VD18_VID, 0xf,
16, 1625000, 25000, 0),
BD9571MWV_REG("VD25", "vd25", VD25, vid_ops, BD9571MWV_VD25_VID, 0xf,
16, 2150000, 50000, 0),
BD9571MWV_REG("VD33", "vd33", VD33, vid_ops, BD9571MWV_VD33_VID, 0xf,
11, 2800000, 100000, 0),
BD9571MWV_REG("DVFS", "dvfs", DVFS, reg_ops,
BD9571MWV_DVFS_MONIVDAC, 0x7f,
0x6f, 600000, 10000, 0x3c),
};
#ifdef CONFIG_PM_SLEEP
static int bd9571mwv_bkup_mode_read(struct bd9571mwv_reg *bdreg,
unsigned int *mode)
{
int ret;
ret = regmap_read(bdreg->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
if (ret) {
dev_err(regmap_get_device(bdreg->regmap),
"failed to read backup mode (%d)\n", ret);
return ret;
}
return 0;
}
static int bd9571mwv_bkup_mode_write(struct bd9571mwv_reg *bdreg,
unsigned int mode)
{
int ret;
ret = regmap_write(bdreg->regmap, BD9571MWV_BKUP_MODE_CNT, mode);
if (ret) {
dev_err(regmap_get_device(bdreg->regmap),
"failed to configure backup mode 0x%x (%d)\n",
mode, ret);
return ret;
}
return 0;
}
static ssize_t backup_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct bd9571mwv_reg *bdreg = dev_get_drvdata(dev);
return sysfs_emit(buf, "%s\n", bdreg->bkup_mode_enabled ? "on" : "off");
}
static ssize_t backup_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct bd9571mwv_reg *bdreg = dev_get_drvdata(dev);
unsigned int mode;
int ret;
if (!count)
return 0;
ret = kstrtobool(buf, &bdreg->bkup_mode_enabled);
if (ret)
return ret;
if (!bdreg->rstbmode_level)
return count;
/*
* Configure DDR Backup Mode, to change the role of the accessory power
* switch from a power switch to a wake-up switch, or vice versa
*/
ret = bd9571mwv_bkup_mode_read(bdreg, &mode);
if (ret)
return ret;
mode &= ~BD9571MWV_BKUP_MODE_CNT_KEEPON_MASK;
if (bdreg->bkup_mode_enabled)
mode |= bdreg->bkup_mode_cnt_keepon;
ret = bd9571mwv_bkup_mode_write(bdreg, mode);
if (ret)
return ret;
return count;
}
static DEVICE_ATTR_RW(backup_mode);
static int bd9571mwv_suspend(struct device *dev)
{
struct bd9571mwv_reg *bdreg = dev_get_drvdata(dev);
unsigned int mode;
int ret;
if (!bdreg->bkup_mode_enabled)
return 0;
/* Save DDR Backup Mode */
ret = bd9571mwv_bkup_mode_read(bdreg, &mode);
if (ret)
return ret;
bdreg->bkup_mode_cnt_saved = mode;
if (!bdreg->rstbmode_pulse)
return 0;
/* Enable DDR Backup Mode */
mode &= ~BD9571MWV_BKUP_MODE_CNT_KEEPON_MASK;
mode |= bdreg->bkup_mode_cnt_keepon;
if (mode != bdreg->bkup_mode_cnt_saved)
return bd9571mwv_bkup_mode_write(bdreg, mode);
return 0;
}
static int bd9571mwv_resume(struct device *dev)
{
struct bd9571mwv_reg *bdreg = dev_get_drvdata(dev);
if (!bdreg->bkup_mode_enabled)
return 0;
/* Restore DDR Backup Mode */
return bd9571mwv_bkup_mode_write(bdreg, bdreg->bkup_mode_cnt_saved);
}
static const struct dev_pm_ops bd9571mwv_pm = {
SET_SYSTEM_SLEEP_PM_OPS(bd9571mwv_suspend, bd9571mwv_resume)
};
static int bd9571mwv_regulator_remove(struct platform_device *pdev)
{
device_remove_file(&pdev->dev, &dev_attr_backup_mode);
return 0;
}
#define DEV_PM_OPS &bd9571mwv_pm
#else
#define DEV_PM_OPS NULL
#define bd9571mwv_regulator_remove NULL
#endif /* CONFIG_PM_SLEEP */
static int bd9571mwv_regulator_probe(struct platform_device *pdev)
{
struct regulator_config config = { };
struct bd9571mwv_reg *bdreg;
struct regulator_dev *rdev;
unsigned int val;
int i;
enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data;
bdreg = devm_kzalloc(&pdev->dev, sizeof(*bdreg), GFP_KERNEL);
if (!bdreg)
return -ENOMEM;
bdreg->regmap = dev_get_regmap(pdev->dev.parent, NULL);
platform_set_drvdata(pdev, bdreg);
config.dev = &pdev->dev;
config.dev->of_node = pdev->dev.parent->of_node;
config.driver_data = bdreg;
config.regmap = bdreg->regmap;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
/* BD9574MWF supports DVFS only */
if (chip == ROHM_CHIP_TYPE_BD9574 && regulators[i].id != DVFS)
continue;
rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
&config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s regulator\n",
regulators[i].name);
return PTR_ERR(rdev);
}
}
val = 0;
of_property_read_u32(config.dev->of_node, "rohm,ddr-backup-power", &val);
if (val & ~BD9571MWV_BKUP_MODE_CNT_KEEPON_MASK) {
dev_err(&pdev->dev, "invalid %s mode %u\n",
"rohm,ddr-backup-power", val);
return -EINVAL;
}
bdreg->bkup_mode_cnt_keepon = val;
bdreg->rstbmode_level = of_property_read_bool(config.dev->of_node,
"rohm,rstbmode-level");
bdreg->rstbmode_pulse = of_property_read_bool(config.dev->of_node,
"rohm,rstbmode-pulse");
if (bdreg->rstbmode_level && bdreg->rstbmode_pulse) {
dev_err(&pdev->dev, "only one rohm,rstbmode-* may be specified");
return -EINVAL;
}
#ifdef CONFIG_PM_SLEEP
if (bdreg->bkup_mode_cnt_keepon) {
int ret;
/*
* Backup mode is enabled by default in pulse mode, but needs
* explicit user setup in level mode.
*/
bdreg->bkup_mode_enabled = bdreg->rstbmode_pulse;
ret = device_create_file(&pdev->dev, &dev_attr_backup_mode);
if (ret)
return ret;
}
#endif /* CONFIG_PM_SLEEP */
return 0;
}
static const struct platform_device_id bd9571mwv_regulator_id_table[] = {
{ "bd9571mwv-regulator", ROHM_CHIP_TYPE_BD9571 },
{ "bd9574mwf-regulator", ROHM_CHIP_TYPE_BD9574 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, bd9571mwv_regulator_id_table);
static struct platform_driver bd9571mwv_regulator_driver = {
.driver = {
.name = "bd9571mwv-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.pm = DEV_PM_OPS,
},
.probe = bd9571mwv_regulator_probe,
.remove = bd9571mwv_regulator_remove,
.id_table = bd9571mwv_regulator_id_table,
};
module_platform_driver(bd9571mwv_regulator_driver);
MODULE_AUTHOR("Marek Vasut <[email protected]>");
MODULE_DESCRIPTION("BD9571MWV Regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/bd9571mwv-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2014 MediaTek Inc.
// Author: Flora Fu <[email protected]>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/mfd/mt6397/registers.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6397-regulator.h>
#include <linux/regulator/of_regulator.h>
#include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
/*
* MT6397 regulators' information
*
* @desc: standard fields of regulator description.
* @qi: Mask for query enable signal status of regulators
* @vselon_reg: Register sections for hardware control mode of bucks
* @vselctrl_reg: Register for controlling the buck control mode.
* @vselctrl_mask: Mask for query buck's voltage control mode.
*/
struct mt6397_regulator_info {
struct regulator_desc desc;
u32 qi;
u32 vselon_reg;
u32 vselctrl_reg;
u32 vselctrl_mask;
u32 modeset_reg;
u32 modeset_mask;
};
#define MT6397_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \
vosel, vosel_mask, voselon, vosel_ctrl, _modeset_reg, \
_modeset_shift) \
[MT6397_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6397_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6397_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = (max - min)/step + 1, \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(0), \
.of_map_mode = mt6397_map_mode, \
}, \
.qi = BIT(13), \
.vselon_reg = voselon, \
.vselctrl_reg = vosel_ctrl, \
.vselctrl_mask = BIT(1), \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
}
#define MT6397_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \
vosel_mask) \
[MT6397_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6397_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6397_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(ldo_volt_table), \
.volt_table = ldo_volt_table, \
.vsel_reg = vosel, \
.vsel_mask = vosel_mask, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
}, \
.qi = BIT(15), \
}
#define MT6397_REG_FIXED(match, vreg, enreg, enbit, volt) \
[MT6397_ID_##vreg] = { \
.desc = { \
.name = #vreg, \
.of_match = of_match_ptr(match), \
.ops = &mt6397_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6397_ID_##vreg, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = enreg, \
.enable_mask = BIT(enbit), \
.min_uV = volt, \
}, \
.qi = BIT(15), \
}
static const struct linear_range buck_volt_range1[] = {
REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250),
};
static const struct linear_range buck_volt_range2[] = {
REGULATOR_LINEAR_RANGE(800000, 0, 0x7f, 6250),
};
static const struct linear_range buck_volt_range3[] = {
REGULATOR_LINEAR_RANGE(1500000, 0, 0x1f, 20000),
};
static const unsigned int ldo_volt_table1[] = {
1500000, 1800000, 2500000, 2800000,
};
static const unsigned int ldo_volt_table2[] = {
1800000, 3300000,
};
static const unsigned int ldo_volt_table3[] = {
3000000, 3300000,
};
static const unsigned int ldo_volt_table4[] = {
1220000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
};
static const unsigned int ldo_volt_table5[] = {
1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
};
static const unsigned int ldo_volt_table5_v2[] = {
1200000, 1000000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
};
static const unsigned int ldo_volt_table6[] = {
1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 2000000,
};
static const unsigned int ldo_volt_table7[] = {
1300000, 1500000, 1800000, 2000000, 2500000, 2800000, 3000000, 3300000,
};
static unsigned int mt6397_map_mode(unsigned int mode)
{
switch (mode) {
case MT6397_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
case MT6397_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
default:
return REGULATOR_MODE_INVALID;
}
}
static int mt6397_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
int ret, val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = MT6397_BUCK_MODE_FORCE_PWM;
break;
case REGULATOR_MODE_NORMAL:
val = MT6397_BUCK_MODE_AUTO;
break;
default:
ret = -EINVAL;
goto err_mode;
}
dev_dbg(&rdev->dev, "mt6397 buck set_mode %#x, %#x, %#x\n",
info->modeset_reg, info->modeset_mask, val);
val <<= ffs(info->modeset_mask) - 1;
ret = regmap_update_bits(rdev->regmap, info->modeset_reg,
info->modeset_mask, val);
err_mode:
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to set mt6397 buck mode: %d\n", ret);
return ret;
}
return 0;
}
static unsigned int mt6397_regulator_get_mode(struct regulator_dev *rdev)
{
struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
int ret, regval;
ret = regmap_read(rdev->regmap, info->modeset_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6397 buck mode: %d\n", ret);
return ret;
}
regval &= info->modeset_mask;
regval >>= ffs(info->modeset_mask) - 1;
switch (regval) {
case MT6397_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
case MT6397_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
default:
return -EINVAL;
}
}
static int mt6397_get_status(struct regulator_dev *rdev)
{
int ret;
u32 regval;
struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
ret = regmap_read(rdev->regmap, info->desc.enable_reg, ®val);
if (ret != 0) {
dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}
return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
}
static const struct regulator_ops mt6397_volt_range_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6397_get_status,
.set_mode = mt6397_regulator_set_mode,
.get_mode = mt6397_regulator_get_mode,
};
static const struct regulator_ops mt6397_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6397_get_status,
};
static const struct regulator_ops mt6397_volt_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6397_get_status,
};
/* The array is indexed by id(MT6397_ID_XXX) */
static struct mt6397_regulator_info mt6397_regulators[] = {
MT6397_BUCK("buck_vpca15", VPCA15, 700000, 1493750, 6250,
buck_volt_range1, MT6397_VCA15_CON7, MT6397_VCA15_CON9, 0x7f,
MT6397_VCA15_CON10, MT6397_VCA15_CON5, MT6397_VCA15_CON2, 11),
MT6397_BUCK("buck_vpca7", VPCA7, 700000, 1493750, 6250,
buck_volt_range1, MT6397_VPCA7_CON7, MT6397_VPCA7_CON9, 0x7f,
MT6397_VPCA7_CON10, MT6397_VPCA7_CON5, MT6397_VPCA7_CON2, 8),
MT6397_BUCK("buck_vsramca15", VSRAMCA15, 700000, 1493750, 6250,
buck_volt_range1, MT6397_VSRMCA15_CON7, MT6397_VSRMCA15_CON9,
0x7f, MT6397_VSRMCA15_CON10, MT6397_VSRMCA15_CON5,
MT6397_VSRMCA15_CON2, 8),
MT6397_BUCK("buck_vsramca7", VSRAMCA7, 700000, 1493750, 6250,
buck_volt_range1, MT6397_VSRMCA7_CON7, MT6397_VSRMCA7_CON9,
0x7f, MT6397_VSRMCA7_CON10, MT6397_VSRMCA7_CON5,
MT6397_VSRMCA7_CON2, 8),
MT6397_BUCK("buck_vcore", VCORE, 700000, 1493750, 6250,
buck_volt_range1, MT6397_VCORE_CON7, MT6397_VCORE_CON9, 0x7f,
MT6397_VCORE_CON10, MT6397_VCORE_CON5, MT6397_VCORE_CON2, 8),
MT6397_BUCK("buck_vgpu", VGPU, 700000, 1493750, 6250, buck_volt_range1,
MT6397_VGPU_CON7, MT6397_VGPU_CON9, 0x7f,
MT6397_VGPU_CON10, MT6397_VGPU_CON5, MT6397_VGPU_CON2, 8),
MT6397_BUCK("buck_vdrm", VDRM, 800000, 1593750, 6250, buck_volt_range2,
MT6397_VDRM_CON7, MT6397_VDRM_CON9, 0x7f,
MT6397_VDRM_CON10, MT6397_VDRM_CON5, MT6397_VDRM_CON2, 8),
MT6397_BUCK("buck_vio18", VIO18, 1500000, 2120000, 20000,
buck_volt_range3, MT6397_VIO18_CON7, MT6397_VIO18_CON9, 0x1f,
MT6397_VIO18_CON10, MT6397_VIO18_CON5, MT6397_VIO18_CON2, 8),
MT6397_REG_FIXED("ldo_vtcxo", VTCXO, MT6397_ANALDO_CON0, 10, 2800000),
MT6397_REG_FIXED("ldo_va28", VA28, MT6397_ANALDO_CON1, 14, 2800000),
MT6397_LDO("ldo_vcama", VCAMA, ldo_volt_table1,
MT6397_ANALDO_CON2, 15, MT6397_ANALDO_CON6, 0xC0),
MT6397_REG_FIXED("ldo_vio28", VIO28, MT6397_DIGLDO_CON0, 14, 2800000),
MT6397_REG_FIXED("ldo_vusb", VUSB, MT6397_DIGLDO_CON1, 14, 3300000),
MT6397_LDO("ldo_vmc", VMC, ldo_volt_table2,
MT6397_DIGLDO_CON2, 12, MT6397_DIGLDO_CON29, 0x10),
MT6397_LDO("ldo_vmch", VMCH, ldo_volt_table3,
MT6397_DIGLDO_CON3, 14, MT6397_DIGLDO_CON17, 0x80),
MT6397_LDO("ldo_vemc3v3", VEMC3V3, ldo_volt_table3,
MT6397_DIGLDO_CON4, 14, MT6397_DIGLDO_CON18, 0x10),
MT6397_LDO("ldo_vgp1", VGP1, ldo_volt_table4,
MT6397_DIGLDO_CON5, 15, MT6397_DIGLDO_CON19, 0xE0),
MT6397_LDO("ldo_vgp2", VGP2, ldo_volt_table5,
MT6397_DIGLDO_CON6, 15, MT6397_DIGLDO_CON20, 0xE0),
MT6397_LDO("ldo_vgp3", VGP3, ldo_volt_table5,
MT6397_DIGLDO_CON7, 15, MT6397_DIGLDO_CON21, 0xE0),
MT6397_LDO("ldo_vgp4", VGP4, ldo_volt_table5,
MT6397_DIGLDO_CON8, 15, MT6397_DIGLDO_CON22, 0xE0),
MT6397_LDO("ldo_vgp5", VGP5, ldo_volt_table6,
MT6397_DIGLDO_CON9, 15, MT6397_DIGLDO_CON23, 0xE0),
MT6397_LDO("ldo_vgp6", VGP6, ldo_volt_table5,
MT6397_DIGLDO_CON10, 15, MT6397_DIGLDO_CON33, 0xE0),
MT6397_LDO("ldo_vibr", VIBR, ldo_volt_table7,
MT6397_DIGLDO_CON24, 15, MT6397_DIGLDO_CON25, 0xE00),
};
static int mt6397_set_buck_vosel_reg(struct platform_device *pdev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
int i;
u32 regval;
for (i = 0; i < MT6397_MAX_REGULATOR; i++) {
if (mt6397_regulators[i].vselctrl_reg) {
if (regmap_read(mt6397->regmap,
mt6397_regulators[i].vselctrl_reg,
®val) < 0) {
dev_err(&pdev->dev,
"Failed to read buck ctrl\n");
return -EIO;
}
if (regval & mt6397_regulators[i].vselctrl_mask) {
mt6397_regulators[i].desc.vsel_reg =
mt6397_regulators[i].vselon_reg;
}
}
}
return 0;
}
static int mt6397_regulator_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rdev;
int i;
u32 reg_value, version;
/* Query buck controller to select activated voltage register part */
if (mt6397_set_buck_vosel_reg(pdev))
return -EIO;
/* Read PMIC chip revision to update constraints and voltage table */
if (regmap_read(mt6397->regmap, MT6397_CID, ®_value) < 0) {
dev_err(&pdev->dev, "Failed to read Chip ID\n");
return -EIO;
}
dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value);
version = (reg_value & 0xFF);
switch (version) {
case MT6397_REGULATOR_ID91:
mt6397_regulators[MT6397_ID_VGP2].desc.volt_table =
ldo_volt_table5_v2;
break;
default:
break;
}
for (i = 0; i < MT6397_MAX_REGULATOR; i++) {
config.dev = &pdev->dev;
config.driver_data = &mt6397_regulators[i];
config.regmap = mt6397->regmap;
rdev = devm_regulator_register(&pdev->dev,
&mt6397_regulators[i].desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",
mt6397_regulators[i].desc.name);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id mt6397_platform_ids[] = {
{"mt6397-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6397_platform_ids);
static const struct of_device_id mt6397_of_match[] __maybe_unused = {
{ .compatible = "mediatek,mt6397-regulator", },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, mt6397_of_match);
static struct platform_driver mt6397_regulator_driver = {
.driver = {
.name = "mt6397-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(mt6397_of_match),
},
.probe = mt6397_regulator_probe,
.id_table = mt6397_platform_ids,
};
module_platform_driver(mt6397_regulator_driver);
MODULE_AUTHOR("Flora Fu <[email protected]>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/mt6397-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// max8998.c - Voltage regulator driver for the Maxim 8998
//
// Copyright (C) 2009-2010 Samsung Electronics
// Kyungmin Park <[email protected]>
// Marek Szyprowski <[email protected]>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/max8998.h>
#include <linux/mfd/max8998-private.h>
struct max8998_data {
struct device *dev;
struct max8998_dev *iodev;
int num_regulators;
u8 buck1_vol[4]; /* voltages for selection */
u8 buck2_vol[2];
unsigned int buck1_idx; /* index to last changed voltage */
/* value in a set */
unsigned int buck2_idx;
};
static const unsigned int charger_current_table[] = {
90000, 380000, 475000, 550000, 570000, 600000, 700000, 800000,
};
static int max8998_get_enable_register(struct regulator_dev *rdev,
int *reg, int *shift)
{
int ldo = rdev_get_id(rdev);
switch (ldo) {
case MAX8998_LDO2 ... MAX8998_LDO5:
*reg = MAX8998_REG_ONOFF1;
*shift = 3 - (ldo - MAX8998_LDO2);
break;
case MAX8998_LDO6 ... MAX8998_LDO13:
*reg = MAX8998_REG_ONOFF2;
*shift = 7 - (ldo - MAX8998_LDO6);
break;
case MAX8998_LDO14 ... MAX8998_LDO17:
*reg = MAX8998_REG_ONOFF3;
*shift = 7 - (ldo - MAX8998_LDO14);
break;
case MAX8998_BUCK1 ... MAX8998_BUCK4:
*reg = MAX8998_REG_ONOFF1;
*shift = 7 - (ldo - MAX8998_BUCK1);
break;
case MAX8998_EN32KHZ_AP ... MAX8998_ENVICHG:
*reg = MAX8998_REG_ONOFF4;
*shift = 7 - (ldo - MAX8998_EN32KHZ_AP);
break;
case MAX8998_ESAFEOUT1 ... MAX8998_ESAFEOUT2:
*reg = MAX8998_REG_CHGR2;
*shift = 7 - (ldo - MAX8998_ESAFEOUT1);
break;
case MAX8998_CHARGER:
*reg = MAX8998_REG_CHGR2;
*shift = 0;
break;
default:
return -EINVAL;
}
return 0;
}
static int max8998_ldo_is_enabled(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int ret, reg, shift = 8;
u8 val;
ret = max8998_get_enable_register(rdev, ®, &shift);
if (ret)
return ret;
ret = max8998_read_reg(i2c, reg, &val);
if (ret)
return ret;
return val & (1 << shift);
}
static int max8998_ldo_is_enabled_inverted(struct regulator_dev *rdev)
{
return (!max8998_ldo_is_enabled(rdev));
}
static int max8998_ldo_enable(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 8, ret;
ret = max8998_get_enable_register(rdev, ®, &shift);
if (ret)
return ret;
return max8998_update_reg(i2c, reg, 1<<shift, 1<<shift);
}
static int max8998_ldo_disable(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 8, ret;
ret = max8998_get_enable_register(rdev, ®, &shift);
if (ret)
return ret;
return max8998_update_reg(i2c, reg, 0, 1<<shift);
}
static int max8998_get_voltage_register(struct regulator_dev *rdev,
int *_reg, int *_shift, int *_mask)
{
int ldo = rdev_get_id(rdev);
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
int reg, shift = 0, mask = 0xff;
switch (ldo) {
case MAX8998_LDO2 ... MAX8998_LDO3:
reg = MAX8998_REG_LDO2_LDO3;
mask = 0xf;
if (ldo == MAX8998_LDO2)
shift = 4;
else
shift = 0;
break;
case MAX8998_LDO4 ... MAX8998_LDO7:
reg = MAX8998_REG_LDO4 + (ldo - MAX8998_LDO4);
break;
case MAX8998_LDO8 ... MAX8998_LDO9:
reg = MAX8998_REG_LDO8_LDO9;
mask = 0xf;
if (ldo == MAX8998_LDO8)
shift = 4;
else
shift = 0;
break;
case MAX8998_LDO10 ... MAX8998_LDO11:
reg = MAX8998_REG_LDO10_LDO11;
if (ldo == MAX8998_LDO10) {
shift = 5;
mask = 0x7;
} else {
shift = 0;
mask = 0x1f;
}
break;
case MAX8998_LDO12 ... MAX8998_LDO17:
reg = MAX8998_REG_LDO12 + (ldo - MAX8998_LDO12);
break;
case MAX8998_BUCK1:
reg = MAX8998_REG_BUCK1_VOLTAGE1 + max8998->buck1_idx;
break;
case MAX8998_BUCK2:
reg = MAX8998_REG_BUCK2_VOLTAGE1 + max8998->buck2_idx;
break;
case MAX8998_BUCK3:
reg = MAX8998_REG_BUCK3;
break;
case MAX8998_BUCK4:
reg = MAX8998_REG_BUCK4;
break;
default:
return -EINVAL;
}
*_reg = reg;
*_shift = shift;
*_mask = mask;
return 0;
}
static int max8998_get_voltage_sel(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 0, mask, ret;
u8 val;
ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
ret = max8998_read_reg(i2c, reg, &val);
if (ret)
return ret;
val >>= shift;
val &= mask;
return val;
}
static int max8998_set_voltage_ldo_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int reg, shift = 0, mask, ret;
ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
ret = max8998_update_reg(i2c, reg, selector<<shift, mask<<shift);
return ret;
}
static inline void buck1_gpio_set(int gpio1, int gpio2, int v)
{
gpio_set_value(gpio1, v & 0x1);
gpio_set_value(gpio2, (v >> 1) & 0x1);
}
static inline void buck2_gpio_set(int gpio, int v)
{
gpio_set_value(gpio, v & 0x1);
}
static int max8998_set_voltage_buck_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct max8998_platform_data *pdata = max8998->iodev->pdata;
struct i2c_client *i2c = max8998->iodev->i2c;
int buck = rdev_get_id(rdev);
int reg, shift = 0, mask, ret, j;
static u8 buck1_last_val;
ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
if (ret)
return ret;
switch (buck) {
case MAX8998_BUCK1:
dev_dbg(max8998->dev,
"BUCK1, selector:%d, buck1_vol1:%d, buck1_vol2:%d\n"
"buck1_vol3:%d, buck1_vol4:%d\n",
selector, max8998->buck1_vol[0], max8998->buck1_vol[1],
max8998->buck1_vol[2], max8998->buck1_vol[3]);
if (gpio_is_valid(pdata->buck1_set1) &&
gpio_is_valid(pdata->buck1_set2)) {
/* check if requested voltage */
/* value is already defined */
for (j = 0; j < ARRAY_SIZE(max8998->buck1_vol); j++) {
if (max8998->buck1_vol[j] == selector) {
max8998->buck1_idx = j;
buck1_gpio_set(pdata->buck1_set1,
pdata->buck1_set2, j);
goto buck1_exit;
}
}
if (pdata->buck_voltage_lock)
return -EINVAL;
/* no predefine regulator found */
max8998->buck1_idx = (buck1_last_val % 2) + 2;
dev_dbg(max8998->dev, "max8998->buck1_idx:%d\n",
max8998->buck1_idx);
max8998->buck1_vol[max8998->buck1_idx] = selector;
ret = max8998_get_voltage_register(rdev, ®,
&shift,
&mask);
ret = max8998_write_reg(i2c, reg, selector);
buck1_gpio_set(pdata->buck1_set1,
pdata->buck1_set2, max8998->buck1_idx);
buck1_last_val++;
buck1_exit:
dev_dbg(max8998->dev, "%s: SET1:%d, SET2:%d\n",
i2c->name, gpio_get_value(pdata->buck1_set1),
gpio_get_value(pdata->buck1_set2));
break;
} else {
ret = max8998_write_reg(i2c, reg, selector);
}
break;
case MAX8998_BUCK2:
dev_dbg(max8998->dev,
"BUCK2, selector:%d buck2_vol1:%d, buck2_vol2:%d\n",
selector, max8998->buck2_vol[0], max8998->buck2_vol[1]);
if (gpio_is_valid(pdata->buck2_set3)) {
/* check if requested voltage */
/* value is already defined */
for (j = 0; j < ARRAY_SIZE(max8998->buck2_vol); j++) {
if (max8998->buck2_vol[j] == selector) {
max8998->buck2_idx = j;
buck2_gpio_set(pdata->buck2_set3, j);
goto buck2_exit;
}
}
if (pdata->buck_voltage_lock)
return -EINVAL;
max8998_get_voltage_register(rdev,
®, &shift, &mask);
ret = max8998_write_reg(i2c, reg, selector);
max8998->buck2_vol[max8998->buck2_idx] = selector;
buck2_gpio_set(pdata->buck2_set3, max8998->buck2_idx);
buck2_exit:
dev_dbg(max8998->dev, "%s: SET3:%d\n", i2c->name,
gpio_get_value(pdata->buck2_set3));
} else {
ret = max8998_write_reg(i2c, reg, selector);
}
break;
case MAX8998_BUCK3:
case MAX8998_BUCK4:
ret = max8998_update_reg(i2c, reg, selector<<shift,
mask<<shift);
break;
}
return ret;
}
static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int buck = rdev_get_id(rdev);
u8 val = 0;
int difference, ret;
if (buck < MAX8998_BUCK1 || buck > MAX8998_BUCK4)
return -EINVAL;
/* Voltage stabilization */
ret = max8998_read_reg(i2c, MAX8998_REG_ONOFF4, &val);
if (ret)
return ret;
/* lp3974 hasn't got ENRAMP bit - ramp is assumed as true */
/* MAX8998 has ENRAMP bit implemented, so test it*/
if (max8998->iodev->type == TYPE_MAX8998 && !(val & MAX8998_ENRAMP))
return 0;
difference = (new_selector - old_selector) * rdev->desc->uV_step / 1000;
if (difference > 0)
return DIV_ROUND_UP(difference, (val & 0x0f) + 1);
return 0;
}
static int max8998_set_current_limit(struct regulator_dev *rdev,
int min_uA, int max_uA)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
unsigned int n_currents = rdev->desc->n_current_limits;
int i, sel = -1;
if (n_currents == 0)
return -EINVAL;
if (rdev->desc->curr_table) {
const unsigned int *curr_table = rdev->desc->curr_table;
bool ascend = curr_table[n_currents - 1] > curr_table[0];
/* search for closest to maximum */
if (ascend) {
for (i = n_currents - 1; i >= 0; i--) {
if (min_uA <= curr_table[i] &&
curr_table[i] <= max_uA) {
sel = i;
break;
}
}
} else {
for (i = 0; i < n_currents; i++) {
if (min_uA <= curr_table[i] &&
curr_table[i] <= max_uA) {
sel = i;
break;
}
}
}
}
if (sel < 0)
return -EINVAL;
sel <<= ffs(rdev->desc->csel_mask) - 1;
return max8998_update_reg(i2c, rdev->desc->csel_reg,
sel, rdev->desc->csel_mask);
}
static int max8998_get_current_limit(struct regulator_dev *rdev)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
u8 val;
int ret;
ret = max8998_read_reg(i2c, rdev->desc->csel_reg, &val);
if (ret != 0)
return ret;
val &= rdev->desc->csel_mask;
val >>= ffs(rdev->desc->csel_mask) - 1;
if (rdev->desc->curr_table) {
if (val >= rdev->desc->n_current_limits)
return -EINVAL;
return rdev->desc->curr_table[val];
}
return -EINVAL;
}
static const struct regulator_ops max8998_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = max8998_ldo_is_enabled,
.enable = max8998_ldo_enable,
.disable = max8998_ldo_disable,
.get_voltage_sel = max8998_get_voltage_sel,
.set_voltage_sel = max8998_set_voltage_ldo_sel,
};
static const struct regulator_ops max8998_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = max8998_ldo_is_enabled,
.enable = max8998_ldo_enable,
.disable = max8998_ldo_disable,
.get_voltage_sel = max8998_get_voltage_sel,
.set_voltage_sel = max8998_set_voltage_buck_sel,
.set_voltage_time_sel = max8998_set_voltage_buck_time_sel,
};
static const struct regulator_ops max8998_charger_ops = {
.set_current_limit = max8998_set_current_limit,
.get_current_limit = max8998_get_current_limit,
.is_enabled = max8998_ldo_is_enabled_inverted,
/* Swapped as register is inverted */
.enable = max8998_ldo_disable,
.disable = max8998_ldo_enable,
};
static const struct regulator_ops max8998_others_ops = {
.is_enabled = max8998_ldo_is_enabled,
.enable = max8998_ldo_enable,
.disable = max8998_ldo_disable,
};
#define MAX8998_LINEAR_REG(_name, _ops, _min, _step, _max) \
{ \
.name = #_name, \
.id = MAX8998_##_name, \
.ops = _ops, \
.min_uV = (_min), \
.uV_step = (_step), \
.n_voltages = ((_max) - (_min)) / (_step) + 1, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
#define MAX8998_CURRENT_REG(_name, _ops, _table, _reg, _mask) \
{ \
.name = #_name, \
.id = MAX8998_##_name, \
.ops = _ops, \
.curr_table = _table, \
.n_current_limits = ARRAY_SIZE(_table), \
.csel_reg = _reg, \
.csel_mask = _mask, \
.type = REGULATOR_CURRENT, \
.owner = THIS_MODULE, \
}
#define MAX8998_OTHERS_REG(_name, _id) \
{ \
.name = #_name, \
.id = _id, \
.ops = &max8998_others_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}
static const struct regulator_desc regulators[] = {
MAX8998_LINEAR_REG(LDO2, &max8998_ldo_ops, 800000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO3, &max8998_ldo_ops, 800000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO4, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO5, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO6, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO7, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO8, &max8998_ldo_ops, 3000000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO9, &max8998_ldo_ops, 2800000, 100000, 3100000),
MAX8998_LINEAR_REG(LDO10, &max8998_ldo_ops, 950000, 50000, 1300000),
MAX8998_LINEAR_REG(LDO11, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO12, &max8998_ldo_ops, 800000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO13, &max8998_ldo_ops, 800000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO14, &max8998_ldo_ops, 1200000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO15, &max8998_ldo_ops, 1200000, 100000, 3300000),
MAX8998_LINEAR_REG(LDO16, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(LDO17, &max8998_ldo_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(BUCK1, &max8998_buck_ops, 750000, 25000, 1525000),
MAX8998_LINEAR_REG(BUCK2, &max8998_buck_ops, 750000, 25000, 1525000),
MAX8998_LINEAR_REG(BUCK3, &max8998_buck_ops, 1600000, 100000, 3600000),
MAX8998_LINEAR_REG(BUCK4, &max8998_buck_ops, 800000, 100000, 2300000),
MAX8998_OTHERS_REG(EN32KHz-AP, MAX8998_EN32KHZ_AP),
MAX8998_OTHERS_REG(EN32KHz-CP, MAX8998_EN32KHZ_CP),
MAX8998_OTHERS_REG(ENVICHG, MAX8998_ENVICHG),
MAX8998_OTHERS_REG(ESAFEOUT1, MAX8998_ESAFEOUT1),
MAX8998_OTHERS_REG(ESAFEOUT2, MAX8998_ESAFEOUT2),
MAX8998_CURRENT_REG(CHARGER, &max8998_charger_ops,
charger_current_table, MAX8998_REG_CHGR1, 0x7),
};
static int max8998_pmic_dt_parse_dvs_gpio(struct max8998_dev *iodev,
struct max8998_platform_data *pdata,
struct device_node *pmic_np)
{
int gpio;
gpio = of_get_named_gpio(pmic_np, "max8998,pmic-buck1-dvs-gpios", 0);
if (!gpio_is_valid(gpio)) {
dev_err(iodev->dev, "invalid buck1 gpio[0]: %d\n", gpio);
return -EINVAL;
}
pdata->buck1_set1 = gpio;
gpio = of_get_named_gpio(pmic_np, "max8998,pmic-buck1-dvs-gpios", 1);
if (!gpio_is_valid(gpio)) {
dev_err(iodev->dev, "invalid buck1 gpio[1]: %d\n", gpio);
return -EINVAL;
}
pdata->buck1_set2 = gpio;
gpio = of_get_named_gpio(pmic_np, "max8998,pmic-buck2-dvs-gpio", 0);
if (!gpio_is_valid(gpio)) {
dev_err(iodev->dev, "invalid buck 2 gpio: %d\n", gpio);
return -EINVAL;
}
pdata->buck2_set3 = gpio;
return 0;
}
static int max8998_pmic_dt_parse_pdata(struct max8998_dev *iodev,
struct max8998_platform_data *pdata)
{
struct device_node *pmic_np = iodev->dev->of_node;
struct device_node *regulators_np, *reg_np;
struct max8998_regulator_data *rdata;
unsigned int i;
int ret;
regulators_np = of_get_child_by_name(pmic_np, "regulators");
if (!regulators_np) {
dev_err(iodev->dev, "could not find regulators sub-node\n");
return -EINVAL;
}
/* count the number of regulators to be supported in pmic */
pdata->num_regulators = of_get_child_count(regulators_np);
rdata = devm_kcalloc(iodev->dev,
pdata->num_regulators, sizeof(*rdata),
GFP_KERNEL);
if (!rdata) {
of_node_put(regulators_np);
return -ENOMEM;
}
pdata->regulators = rdata;
for (i = 0; i < ARRAY_SIZE(regulators); ++i) {
reg_np = of_get_child_by_name(regulators_np,
regulators[i].name);
if (!reg_np)
continue;
rdata->id = regulators[i].id;
rdata->initdata = of_get_regulator_init_data(iodev->dev,
reg_np,
®ulators[i]);
rdata->reg_node = reg_np;
++rdata;
}
pdata->num_regulators = rdata - pdata->regulators;
of_node_put(reg_np);
of_node_put(regulators_np);
ret = max8998_pmic_dt_parse_dvs_gpio(iodev, pdata, pmic_np);
if (ret)
return -EINVAL;
pdata->buck_voltage_lock = of_property_read_bool(pmic_np, "max8998,pmic-buck-voltage-lock");
ret = of_property_read_u32(pmic_np,
"max8998,pmic-buck1-default-dvs-idx",
&pdata->buck1_default_idx);
if (!ret && pdata->buck1_default_idx >= 4) {
pdata->buck1_default_idx = 0;
dev_warn(iodev->dev, "invalid value for default dvs index, using 0 instead\n");
}
ret = of_property_read_u32(pmic_np,
"max8998,pmic-buck2-default-dvs-idx",
&pdata->buck2_default_idx);
if (!ret && pdata->buck2_default_idx >= 2) {
pdata->buck2_default_idx = 0;
dev_warn(iodev->dev, "invalid value for default dvs index, using 0 instead\n");
}
ret = of_property_read_u32_array(pmic_np,
"max8998,pmic-buck1-dvs-voltage",
pdata->buck1_voltage,
ARRAY_SIZE(pdata->buck1_voltage));
if (ret) {
dev_err(iodev->dev, "buck1 voltages not specified\n");
return -EINVAL;
}
ret = of_property_read_u32_array(pmic_np,
"max8998,pmic-buck2-dvs-voltage",
pdata->buck2_voltage,
ARRAY_SIZE(pdata->buck2_voltage));
if (ret) {
dev_err(iodev->dev, "buck2 voltages not specified\n");
return -EINVAL;
}
return 0;
}
static int max8998_pmic_probe(struct platform_device *pdev)
{
struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max8998_platform_data *pdata = iodev->pdata;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct max8998_data *max8998;
struct i2c_client *i2c;
int i, ret;
unsigned int v;
if (!pdata) {
dev_err(pdev->dev.parent, "No platform init data supplied\n");
return -ENODEV;
}
if (IS_ENABLED(CONFIG_OF) && iodev->dev->of_node) {
ret = max8998_pmic_dt_parse_pdata(iodev, pdata);
if (ret)
return ret;
}
max8998 = devm_kzalloc(&pdev->dev, sizeof(struct max8998_data),
GFP_KERNEL);
if (!max8998)
return -ENOMEM;
max8998->dev = &pdev->dev;
max8998->iodev = iodev;
max8998->num_regulators = pdata->num_regulators;
platform_set_drvdata(pdev, max8998);
i2c = max8998->iodev->i2c;
max8998->buck1_idx = pdata->buck1_default_idx;
max8998->buck2_idx = pdata->buck2_default_idx;
/* NOTE: */
/* For unused GPIO NOT marked as -1 (thereof equal to 0) WARN_ON */
/* will be displayed */
/* Check if MAX8998 voltage selection GPIOs are defined */
if (gpio_is_valid(pdata->buck1_set1) &&
gpio_is_valid(pdata->buck1_set2)) {
/* Check if SET1 is not equal to 0 */
if (!pdata->buck1_set1) {
dev_err(&pdev->dev,
"MAX8998 SET1 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck1_set1);
return -EIO;
}
/* Check if SET2 is not equal to 0 */
if (!pdata->buck1_set2) {
dev_err(&pdev->dev,
"MAX8998 SET2 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck1_set2);
return -EIO;
}
gpio_request(pdata->buck1_set1, "MAX8998 BUCK1_SET1");
gpio_direction_output(pdata->buck1_set1,
max8998->buck1_idx & 0x1);
gpio_request(pdata->buck1_set2, "MAX8998 BUCK1_SET2");
gpio_direction_output(pdata->buck1_set2,
(max8998->buck1_idx >> 1) & 0x1);
/* Set predefined values for BUCK1 registers */
for (v = 0; v < ARRAY_SIZE(pdata->buck1_voltage); ++v) {
int index = MAX8998_BUCK1 - MAX8998_LDO2;
i = 0;
while (regulators[index].min_uV +
regulators[index].uV_step * i
< pdata->buck1_voltage[v])
i++;
max8998->buck1_vol[v] = i;
ret = max8998_write_reg(i2c,
MAX8998_REG_BUCK1_VOLTAGE1 + v, i);
if (ret)
return ret;
}
}
if (gpio_is_valid(pdata->buck2_set3)) {
/* Check if SET3 is not equal to 0 */
if (!pdata->buck2_set3) {
dev_err(&pdev->dev,
"MAX8998 SET3 GPIO defined as 0 !\n");
WARN_ON(!pdata->buck2_set3);
return -EIO;
}
gpio_request(pdata->buck2_set3, "MAX8998 BUCK2_SET3");
gpio_direction_output(pdata->buck2_set3,
max8998->buck2_idx & 0x1);
/* Set predefined values for BUCK2 registers */
for (v = 0; v < ARRAY_SIZE(pdata->buck2_voltage); ++v) {
int index = MAX8998_BUCK2 - MAX8998_LDO2;
i = 0;
while (regulators[index].min_uV +
regulators[index].uV_step * i
< pdata->buck2_voltage[v])
i++;
max8998->buck2_vol[v] = i;
ret = max8998_write_reg(i2c,
MAX8998_REG_BUCK2_VOLTAGE1 + v, i);
if (ret)
return ret;
}
}
for (i = 0; i < pdata->num_regulators; i++) {
int index = pdata->regulators[i].id - MAX8998_LDO2;
config.dev = max8998->dev;
config.of_node = pdata->regulators[i].reg_node;
config.init_data = pdata->regulators[i].initdata;
config.driver_data = max8998;
rdev = devm_regulator_register(&pdev->dev, ®ulators[index],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(max8998->dev, "regulator %s init failed (%d)\n",
regulators[index].name, ret);
return ret;
}
}
return 0;
}
static const struct platform_device_id max8998_pmic_id[] = {
{ "max8998-pmic", TYPE_MAX8998 },
{ "lp3974-pmic", TYPE_LP3974 },
{ }
};
MODULE_DEVICE_TABLE(platform, max8998_pmic_id);
static struct platform_driver max8998_pmic_driver = {
.driver = {
.name = "max8998-pmic",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max8998_pmic_probe,
.id_table = max8998_pmic_id,
};
static int __init max8998_pmic_init(void)
{
return platform_driver_register(&max8998_pmic_driver);
}
subsys_initcall(max8998_pmic_init);
static void __exit max8998_pmic_cleanup(void)
{
platform_driver_unregister(&max8998_pmic_driver);
}
module_exit(max8998_pmic_cleanup);
MODULE_DESCRIPTION("MAXIM 8998 voltage regulator driver");
MODULE_AUTHOR("Kyungmin Park <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/max8998.c |
// SPDX-License-Identifier: GPL-2.0+
//
// Regulator device driver for DA9061 and DA9062.
// Copyright (C) 2015-2017 Dialog Semiconductor
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/da9062/core.h>
#include <linux/mfd/da9062/registers.h>
#include <dt-bindings/regulator/dlg,da9063-regulator.h>
/* Regulator IDs */
enum {
DA9061_ID_BUCK1,
DA9061_ID_BUCK2,
DA9061_ID_BUCK3,
DA9061_ID_LDO1,
DA9061_ID_LDO2,
DA9061_ID_LDO3,
DA9061_ID_LDO4,
DA9061_MAX_REGULATORS,
};
enum {
DA9062_ID_BUCK1,
DA9062_ID_BUCK2,
DA9062_ID_BUCK3,
DA9062_ID_BUCK4,
DA9062_ID_LDO1,
DA9062_ID_LDO2,
DA9062_ID_LDO3,
DA9062_ID_LDO4,
DA9062_MAX_REGULATORS,
};
/* Regulator capabilities and registers description */
struct da9062_regulator_info {
struct regulator_desc desc;
/* Main register fields */
struct reg_field mode;
struct reg_field suspend;
struct reg_field sleep;
struct reg_field suspend_sleep;
unsigned int suspend_vsel_reg;
/* Event detection bit */
struct reg_field oc_event;
};
/* Single regulator settings */
struct da9062_regulator {
struct regulator_desc desc;
struct regulator_dev *rdev;
struct da9062 *hw;
const struct da9062_regulator_info *info;
struct regmap_field *mode;
struct regmap_field *suspend;
struct regmap_field *sleep;
struct regmap_field *suspend_sleep;
};
/* Encapsulates all information for the regulators driver */
struct da9062_regulators {
int irq_ldo_lim;
unsigned n_regulators;
/* Array size to be defined during init. Keep at end. */
struct da9062_regulator regulator[];
};
/* Regulator operations */
/* Current limits array (in uA)
* - DA9061_ID_[BUCK1|BUCK3]
* - DA9062_ID_[BUCK1|BUCK2|BUCK4]
* Entry indexes corresponds to register values.
*/
static const unsigned int da9062_buck_a_limits[] = {
500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
};
/* Current limits array (in uA)
* - DA9061_ID_BUCK2
* - DA9062_ID_BUCK3
* Entry indexes corresponds to register values.
*/
static const unsigned int da9062_buck_b_limits[] = {
1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
};
static unsigned int da9062_map_buck_mode(unsigned int mode)
{
switch (mode) {
case DA9063_BUCK_MODE_SLEEP:
return REGULATOR_MODE_STANDBY;
case DA9063_BUCK_MODE_SYNC:
return REGULATOR_MODE_FAST;
case DA9063_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
default:
return REGULATOR_MODE_INVALID;
}
}
static int da9062_buck_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
unsigned val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = DA9063_BUCK_MODE_SYNC;
break;
case REGULATOR_MODE_NORMAL:
val = DA9063_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = DA9063_BUCK_MODE_SLEEP;
break;
default:
return -EINVAL;
}
return regmap_field_write(regl->mode, val);
}
/*
* Bucks use single mode register field for normal operation
* and suspend state.
* There are 3 modes to map to: FAST, NORMAL, and STANDBY.
*/
static unsigned da9062_buck_get_mode(struct regulator_dev *rdev)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
unsigned int val;
int ret;
ret = regmap_field_read(regl->mode, &val);
if (ret < 0)
return ret;
switch (val) {
default:
/* Sleep flag bit decides the mode */
break;
case DA9063_BUCK_MODE_SLEEP:
return REGULATOR_MODE_STANDBY;
case DA9063_BUCK_MODE_SYNC:
return REGULATOR_MODE_FAST;
case DA9063_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
}
ret = regmap_field_read(regl->sleep, &val);
if (ret < 0)
return 0;
if (val)
return REGULATOR_MODE_STANDBY;
else
return REGULATOR_MODE_FAST;
}
/*
* LDOs use sleep flags - one for normal and one for suspend state.
* There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state.
*/
static int da9062_ldo_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
unsigned val;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = 0;
break;
case REGULATOR_MODE_STANDBY:
val = 1;
break;
default:
return -EINVAL;
}
return regmap_field_write(regl->sleep, val);
}
static unsigned da9062_ldo_get_mode(struct regulator_dev *rdev)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
int ret, val;
ret = regmap_field_read(regl->sleep, &val);
if (ret < 0)
return 0;
if (val)
return REGULATOR_MODE_STANDBY;
else
return REGULATOR_MODE_NORMAL;
}
static int da9062_buck_get_status(struct regulator_dev *rdev)
{
int ret = regulator_is_enabled_regmap(rdev);
if (ret == 0) {
ret = REGULATOR_STATUS_OFF;
} else if (ret > 0) {
ret = da9062_buck_get_mode(rdev);
if (ret > 0)
ret = regulator_mode_to_status(ret);
else if (ret == 0)
ret = -EIO;
}
return ret;
}
static int da9062_ldo_get_status(struct regulator_dev *rdev)
{
int ret = regulator_is_enabled_regmap(rdev);
if (ret == 0) {
ret = REGULATOR_STATUS_OFF;
} else if (ret > 0) {
ret = da9062_ldo_get_mode(rdev);
if (ret > 0)
ret = regulator_mode_to_status(ret);
else if (ret == 0)
ret = -EIO;
}
return ret;
}
static int da9062_set_suspend_voltage(struct regulator_dev *rdev, int uv)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
const struct da9062_regulator_info *rinfo = regl->info;
int ret, sel;
sel = regulator_map_voltage_linear(rdev, uv, uv);
if (sel < 0)
return sel;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg,
rdev->desc->vsel_mask, sel);
return ret;
}
static int da9062_suspend_enable(struct regulator_dev *rdev)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
return regmap_field_write(regl->suspend, 1);
}
static int da9062_suspend_disable(struct regulator_dev *rdev)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
return regmap_field_write(regl->suspend, 0);
}
static int da9062_buck_set_suspend_mode(struct regulator_dev *rdev,
unsigned mode)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
int val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = DA9063_BUCK_MODE_SYNC;
break;
case REGULATOR_MODE_NORMAL:
val = DA9063_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = DA9063_BUCK_MODE_SLEEP;
break;
default:
return -EINVAL;
}
return regmap_field_write(regl->mode, val);
}
static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev,
unsigned mode)
{
struct da9062_regulator *regl = rdev_get_drvdata(rdev);
unsigned val;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = 0;
break;
case REGULATOR_MODE_STANDBY:
val = 1;
break;
default:
return -EINVAL;
}
return regmap_field_write(regl->suspend_sleep, val);
}
static const struct regulator_ops da9062_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_current_limit = regulator_set_current_limit_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_mode = da9062_buck_set_mode,
.get_mode = da9062_buck_get_mode,
.get_status = da9062_buck_get_status,
.set_suspend_voltage = da9062_set_suspend_voltage,
.set_suspend_enable = da9062_suspend_enable,
.set_suspend_disable = da9062_suspend_disable,
.set_suspend_mode = da9062_buck_set_suspend_mode,
};
static const struct regulator_ops da9062_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_mode = da9062_ldo_set_mode,
.get_mode = da9062_ldo_get_mode,
.get_status = da9062_ldo_get_status,
.set_suspend_voltage = da9062_set_suspend_voltage,
.set_suspend_enable = da9062_suspend_enable,
.set_suspend_disable = da9062_suspend_disable,
.set_suspend_mode = da9062_ldo_set_suspend_mode,
};
/* DA9061 Regulator information */
static const struct da9062_regulator_info local_da9061_regulator_info[] = {
{
.desc.id = DA9061_ID_BUCK1,
.desc.name = "DA9061 BUCK1",
.desc.of_match = of_match_ptr("buck1"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (300) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1570) - (300))/(10) + 1,
.desc.curr_table = da9062_buck_a_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_C,
.desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK1_CONT,
.desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK1_A,
.desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK1_A,
__builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
__builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK1_B,
.mode = REG_FIELD(DA9062AA_BUCK1_CFG,
__builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK1_CONT,
__builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),
},
{
.desc.id = DA9061_ID_BUCK2,
.desc.name = "DA9061 BUCK2",
.desc.of_match = of_match_ptr("buck2"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (800) * 1000,
.desc.uV_step = (20) * 1000,
.desc.n_voltages = ((3340) - (800))/(20) + 1,
.desc.curr_table = da9062_buck_b_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_A,
.desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK3_CONT,
.desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK3_A,
.desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK3_A,
__builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
__builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK3_B,
.mode = REG_FIELD(DA9062AA_BUCK3_CFG,
__builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK3_CONT,
__builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),
},
{
.desc.id = DA9061_ID_BUCK3,
.desc.name = "DA9061 BUCK3",
.desc.of_match = of_match_ptr("buck3"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (530) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1800) - (530))/(10) + 1,
.desc.curr_table = da9062_buck_a_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_B,
.desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK4_CONT,
.desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK4_A,
.desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK4_A,
__builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
__builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK4_B,
.mode = REG_FIELD(DA9062AA_BUCK4_CFG,
__builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK4_CONT,
__builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),
},
{
.desc.id = DA9061_ID_LDO1,
.desc.name = "DA9061 LDO1",
.desc.of_match = of_match_ptr("ldo1"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO1_CONT,
.desc.enable_mask = DA9062AA_LDO1_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO1_A,
.desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO1_A,
__builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
__builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO1_B,
.suspend = REG_FIELD(DA9062AA_LDO1_CONT,
__builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
},
{
.desc.id = DA9061_ID_LDO2,
.desc.name = "DA9061 LDO2",
.desc.of_match = of_match_ptr("ldo2"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO2_CONT,
.desc.enable_mask = DA9062AA_LDO2_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO2_A,
.desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO2_A,
__builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
__builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO2_B,
.suspend = REG_FIELD(DA9062AA_LDO2_CONT,
__builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
},
{
.desc.id = DA9061_ID_LDO3,
.desc.name = "DA9061 LDO3",
.desc.of_match = of_match_ptr("ldo3"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO3_CONT,
.desc.enable_mask = DA9062AA_LDO3_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO3_A,
.desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO3_A,
__builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
__builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO3_B,
.suspend = REG_FIELD(DA9062AA_LDO3_CONT,
__builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
},
{
.desc.id = DA9061_ID_LDO4,
.desc.name = "DA9061 LDO4",
.desc.of_match = of_match_ptr("ldo4"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO4_CONT,
.desc.enable_mask = DA9062AA_LDO4_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO4_A,
.desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO4_A,
__builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
__builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO4_B,
.suspend = REG_FIELD(DA9062AA_LDO4_CONT,
__builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
},
};
/* DA9062 Regulator information */
static const struct da9062_regulator_info local_da9062_regulator_info[] = {
{
.desc.id = DA9062_ID_BUCK1,
.desc.name = "DA9062 BUCK1",
.desc.of_match = of_match_ptr("buck1"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (300) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1570) - (300))/(10) + 1,
.desc.curr_table = da9062_buck_a_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_C,
.desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK1_CONT,
.desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK1_A,
.desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK1_A,
__builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
__builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK1_B,
.mode = REG_FIELD(DA9062AA_BUCK1_CFG,
__builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK1_CONT,
__builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),
},
{
.desc.id = DA9062_ID_BUCK2,
.desc.name = "DA9062 BUCK2",
.desc.of_match = of_match_ptr("buck2"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (300) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1570) - (300))/(10) + 1,
.desc.curr_table = da9062_buck_a_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_C,
.desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK2_CONT,
.desc.enable_mask = DA9062AA_BUCK2_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK2_A,
.desc.vsel_mask = DA9062AA_VBUCK2_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK2_A,
__builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B,
__builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK2_B,
.mode = REG_FIELD(DA9062AA_BUCK2_CFG,
__builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK2_CONT,
__builtin_ffs((int)DA9062AA_BUCK2_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK2_CONF_MASK) - 1),
},
{
.desc.id = DA9062_ID_BUCK3,
.desc.name = "DA9062 BUCK3",
.desc.of_match = of_match_ptr("buck3"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (800) * 1000,
.desc.uV_step = (20) * 1000,
.desc.n_voltages = ((3340) - (800))/(20) + 1,
.desc.curr_table = da9062_buck_b_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_A,
.desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK3_CONT,
.desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK3_A,
.desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK3_A,
__builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
__builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK3_B,
.mode = REG_FIELD(DA9062AA_BUCK3_CFG,
__builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK3_CONT,
__builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),
},
{
.desc.id = DA9062_ID_BUCK4,
.desc.name = "DA9062 BUCK4",
.desc.of_match = of_match_ptr("buck4"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_buck_ops,
.desc.min_uV = (530) * 1000,
.desc.uV_step = (10) * 1000,
.desc.n_voltages = ((1800) - (530))/(10) + 1,
.desc.curr_table = da9062_buck_a_limits,
.desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
.desc.csel_reg = DA9062AA_BUCK_ILIM_B,
.desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,
.desc.enable_reg = DA9062AA_BUCK4_CONT,
.desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
.desc.vsel_reg = DA9062AA_VBUCK4_A,
.desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
.desc.linear_min_sel = 0,
.desc.of_map_mode = da9062_map_buck_mode,
.sleep = REG_FIELD(DA9062AA_VBUCK4_A,
__builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
__builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VBUCK4_B,
.mode = REG_FIELD(DA9062AA_BUCK4_CFG,
__builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
.suspend = REG_FIELD(DA9062AA_BUCK4_CONT,
__builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),
},
{
.desc.id = DA9062_ID_LDO1,
.desc.name = "DA9062 LDO1",
.desc.of_match = of_match_ptr("ldo1"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO1_CONT,
.desc.enable_mask = DA9062AA_LDO1_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO1_A,
.desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO1_A,
__builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
__builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO1_B,
.suspend = REG_FIELD(DA9062AA_LDO1_CONT,
__builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
},
{
.desc.id = DA9062_ID_LDO2,
.desc.name = "DA9062 LDO2",
.desc.of_match = of_match_ptr("ldo2"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO2_CONT,
.desc.enable_mask = DA9062AA_LDO2_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO2_A,
.desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO2_A,
__builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
__builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO2_B,
.suspend = REG_FIELD(DA9062AA_LDO2_CONT,
__builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
},
{
.desc.id = DA9062_ID_LDO3,
.desc.name = "DA9062 LDO3",
.desc.of_match = of_match_ptr("ldo3"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO3_CONT,
.desc.enable_mask = DA9062AA_LDO3_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO3_A,
.desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO3_A,
__builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
__builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO3_B,
.suspend = REG_FIELD(DA9062AA_LDO3_CONT,
__builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
},
{
.desc.id = DA9062_ID_LDO4,
.desc.name = "DA9062 LDO4",
.desc.of_match = of_match_ptr("ldo4"),
.desc.regulators_node = of_match_ptr("regulators"),
.desc.ops = &da9062_ldo_ops,
.desc.min_uV = (900) * 1000,
.desc.uV_step = (50) * 1000,
.desc.n_voltages = ((3600) - (900))/(50) + 1
+ DA9062AA_VLDO_A_MIN_SEL,
.desc.enable_reg = DA9062AA_LDO4_CONT,
.desc.enable_mask = DA9062AA_LDO4_EN_MASK,
.desc.vsel_reg = DA9062AA_VLDO4_A,
.desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
.desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,
.sleep = REG_FIELD(DA9062AA_VLDO4_A,
__builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
.suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
__builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
.suspend_vsel_reg = DA9062AA_VLDO4_B,
.suspend = REG_FIELD(DA9062AA_LDO4_CONT,
__builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),
.oc_event = REG_FIELD(DA9062AA_STATUS_D,
__builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
sizeof(unsigned int) * 8 -
__builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
},
};
/* Regulator interrupt handlers */
static irqreturn_t da9062_ldo_lim_event(int irq, void *data)
{
struct da9062_regulators *regulators = data;
struct da9062 *hw = regulators->regulator[0].hw;
struct da9062_regulator *regl;
int handled = IRQ_NONE;
int bits, i, ret;
ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits);
if (ret < 0) {
dev_err(hw->dev,
"Failed to read LDO overcurrent indicator\n");
goto ldo_lim_error;
}
for (i = regulators->n_regulators - 1; i >= 0; i--) {
regl = ®ulators->regulator[i];
if (regl->info->oc_event.reg != DA9062AA_STATUS_D)
continue;
if (BIT(regl->info->oc_event.lsb) & bits) {
regulator_notifier_call_chain(regl->rdev,
REGULATOR_EVENT_OVER_CURRENT, NULL);
handled = IRQ_HANDLED;
}
}
ldo_lim_error:
return handled;
}
static int da9062_regulator_probe(struct platform_device *pdev)
{
struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
struct da9062_regulators *regulators;
struct da9062_regulator *regl;
struct regulator_config config = { };
const struct da9062_regulator_info *rinfo;
int n, ret;
int max_regulators;
switch (chip->chip_type) {
case COMPAT_TYPE_DA9061:
max_regulators = DA9061_MAX_REGULATORS;
rinfo = local_da9061_regulator_info;
break;
case COMPAT_TYPE_DA9062:
max_regulators = DA9062_MAX_REGULATORS;
rinfo = local_da9062_regulator_info;
break;
default:
dev_err(chip->dev, "Unrecognised chip type\n");
return -ENODEV;
}
/* Allocate memory required by usable regulators */
regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator,
max_regulators), GFP_KERNEL);
if (!regulators)
return -ENOMEM;
regulators->n_regulators = max_regulators;
platform_set_drvdata(pdev, regulators);
for (n = 0; n < regulators->n_regulators; n++) {
/* Initialise regulator structure */
regl = ®ulators->regulator[n];
regl->hw = chip;
regl->info = &rinfo[n];
regl->desc = regl->info->desc;
regl->desc.type = REGULATOR_VOLTAGE;
regl->desc.owner = THIS_MODULE;
if (regl->info->mode.reg) {
regl->mode = devm_regmap_field_alloc(
&pdev->dev,
chip->regmap,
regl->info->mode);
if (IS_ERR(regl->mode))
return PTR_ERR(regl->mode);
}
if (regl->info->suspend.reg) {
regl->suspend = devm_regmap_field_alloc(
&pdev->dev,
chip->regmap,
regl->info->suspend);
if (IS_ERR(regl->suspend))
return PTR_ERR(regl->suspend);
}
if (regl->info->sleep.reg) {
regl->sleep = devm_regmap_field_alloc(
&pdev->dev,
chip->regmap,
regl->info->sleep);
if (IS_ERR(regl->sleep))
return PTR_ERR(regl->sleep);
}
if (regl->info->suspend_sleep.reg) {
regl->suspend_sleep = devm_regmap_field_alloc(
&pdev->dev,
chip->regmap,
regl->info->suspend_sleep);
if (IS_ERR(regl->suspend_sleep))
return PTR_ERR(regl->suspend_sleep);
}
/* Register regulator */
memset(&config, 0, sizeof(config));
config.dev = chip->dev;
config.driver_data = regl;
config.regmap = chip->regmap;
regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc,
&config);
if (IS_ERR(regl->rdev)) {
dev_err(&pdev->dev,
"Failed to register %s regulator\n",
regl->desc.name);
return PTR_ERR(regl->rdev);
}
}
/* LDOs overcurrent event support */
regulators->irq_ldo_lim = platform_get_irq_byname_optional(pdev, "LDO_LIM");
if (regulators->irq_ldo_lim < 0)
return 0;
ret = devm_request_threaded_irq(&pdev->dev, regulators->irq_ldo_lim,
NULL, da9062_ldo_lim_event,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"LDO_LIM", regulators);
if (ret) {
dev_warn(&pdev->dev,
"Failed to request LDO_LIM IRQ.\n");
regulators->irq_ldo_lim = -ENXIO;
}
return 0;
}
static struct platform_driver da9062_regulator_driver = {
.driver = {
.name = "da9062-regulators",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = da9062_regulator_probe,
};
static int __init da9062_regulator_init(void)
{
return platform_driver_register(&da9062_regulator_driver);
}
subsys_initcall(da9062_regulator_init);
static void __exit da9062_regulator_cleanup(void)
{
platform_driver_unregister(&da9062_regulator_driver);
}
module_exit(da9062_regulator_cleanup);
/* Module information */
MODULE_AUTHOR("S Twiss <[email protected]>");
MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9062-regulators");
| linux-master | drivers/regulator/da9062-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
//
// Qualcomm PMIC VBUS output regulator driver
//
// Copyright (c) 2020, The Linux Foundation. All rights reserved.
#include <linux/module.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regmap.h>
#define CMD_OTG 0x40
#define OTG_EN BIT(0)
#define OTG_CURRENT_LIMIT_CFG 0x52
#define OTG_CURRENT_LIMIT_MASK GENMASK(2, 0)
#define OTG_CFG 0x53
#define OTG_EN_SRC_CFG BIT(1)
static const unsigned int curr_table[] = {
500000, 1000000, 1500000, 2000000, 2500000, 3000000,
};
static const struct regulator_ops qcom_usb_vbus_reg_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
};
static struct regulator_desc qcom_usb_vbus_rdesc = {
.name = "usb_vbus",
.ops = &qcom_usb_vbus_reg_ops,
.owner = THIS_MODULE,
.type = REGULATOR_VOLTAGE,
.curr_table = curr_table,
.n_current_limits = ARRAY_SIZE(curr_table),
};
static int qcom_usb_vbus_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct regulator_dev *rdev;
struct regmap *regmap;
struct regulator_config config = { };
struct regulator_init_data *init_data;
int ret;
u32 base;
ret = of_property_read_u32(dev->of_node, "reg", &base);
if (ret < 0) {
dev_err(dev, "no base address found\n");
return ret;
}
regmap = dev_get_regmap(dev->parent, NULL);
if (!regmap) {
dev_err(dev, "Failed to get regmap\n");
return -ENOENT;
}
init_data = of_get_regulator_init_data(dev, dev->of_node,
&qcom_usb_vbus_rdesc);
if (!init_data)
return -ENOMEM;
qcom_usb_vbus_rdesc.enable_reg = base + CMD_OTG;
qcom_usb_vbus_rdesc.enable_mask = OTG_EN;
qcom_usb_vbus_rdesc.csel_reg = base + OTG_CURRENT_LIMIT_CFG;
qcom_usb_vbus_rdesc.csel_mask = OTG_CURRENT_LIMIT_MASK;
config.dev = dev;
config.init_data = init_data;
config.of_node = dev->of_node;
config.regmap = regmap;
rdev = devm_regulator_register(dev, &qcom_usb_vbus_rdesc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(dev, "not able to register vbus reg %d\n", ret);
return ret;
}
/* Disable HW logic for VBUS enable */
regmap_update_bits(regmap, base + OTG_CFG, OTG_EN_SRC_CFG, 0);
return 0;
}
static const struct of_device_id qcom_usb_vbus_regulator_match[] = {
{ .compatible = "qcom,pm8150b-vbus-reg" },
{ }
};
MODULE_DEVICE_TABLE(of, qcom_usb_vbus_regulator_match);
static struct platform_driver qcom_usb_vbus_regulator_driver = {
.driver = {
.name = "qcom-usb-vbus-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = qcom_usb_vbus_regulator_match,
},
.probe = qcom_usb_vbus_regulator_probe,
};
module_platform_driver(qcom_usb_vbus_regulator_driver);
MODULE_DESCRIPTION("Qualcomm USB vbus regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/qcom_usb_vbus-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// pv88080-regulator.c - Regulator device driver for PV88080
// Copyright (C) 2016 Powerventure Semiconductor Ltd.
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/regulator/of_regulator.h>
#include "pv88080-regulator.h"
#define PV88080_MAX_REGULATORS 4
/* PV88080 REGULATOR IDs */
enum {
/* BUCKs */
PV88080_ID_BUCK1,
PV88080_ID_BUCK2,
PV88080_ID_BUCK3,
PV88080_ID_HVBUCK,
};
enum pv88080_types {
TYPE_PV88080_AA,
TYPE_PV88080_BA,
};
struct pv88080_regulator {
struct regulator_desc desc;
unsigned int mode_reg;
unsigned int conf2;
unsigned int conf5;
};
struct pv88080 {
struct device *dev;
struct regmap *regmap;
struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
unsigned long type;
const struct pv88080_compatible_regmap *regmap_config;
};
struct pv88080_buck_voltage {
int min_uV;
int max_uV;
int uV_step;
};
struct pv88080_buck_regmap {
/* REGS */
int buck_enable_reg;
int buck_vsel_reg;
int buck_mode_reg;
int buck_limit_reg;
int buck_vdac_range_reg;
int buck_vrange_gain_reg;
/* MASKS */
int buck_enable_mask;
int buck_vsel_mask;
int buck_limit_mask;
};
struct pv88080_compatible_regmap {
/* BUCK1, 2, 3 */
struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
/* HVBUCK */
int hvbuck_enable_reg;
int hvbuck_vsel_reg;
int hvbuck_enable_mask;
int hvbuck_vsel_mask;
};
static const struct regmap_config pv88080_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
* Entry indexes corresponds to register values.
*/
static const unsigned int pv88080_buck1_limits[] = {
3230000, 5130000, 6960000, 8790000
};
static const unsigned int pv88080_buck23_limits[] = {
1496000, 2393000, 3291000, 4189000
};
static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
{
.min_uV = 600000,
.max_uV = 1393750,
.uV_step = 6250,
},
{
.min_uV = 1400000,
.max_uV = 2193750,
.uV_step = 6250,
},
};
static const struct pv88080_compatible_regmap pv88080_aa_regs = {
/* BUCK1 */
.buck_regmap[0] = {
.buck_enable_reg = PV88080AA_REG_BUCK1_CONF0,
.buck_vsel_reg = PV88080AA_REG_BUCK1_CONF0,
.buck_mode_reg = PV88080AA_REG_BUCK1_CONF1,
.buck_limit_reg = PV88080AA_REG_BUCK1_CONF1,
.buck_vdac_range_reg = PV88080AA_REG_BUCK1_CONF2,
.buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
.buck_enable_mask = PV88080_BUCK1_EN,
.buck_vsel_mask = PV88080_VBUCK1_MASK,
.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
},
/* BUCK2 */
.buck_regmap[1] = {
.buck_enable_reg = PV88080AA_REG_BUCK2_CONF0,
.buck_vsel_reg = PV88080AA_REG_BUCK2_CONF0,
.buck_mode_reg = PV88080AA_REG_BUCK2_CONF1,
.buck_limit_reg = PV88080AA_REG_BUCK2_CONF1,
.buck_vdac_range_reg = PV88080AA_REG_BUCK2_CONF2,
.buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
.buck_enable_mask = PV88080_BUCK2_EN,
.buck_vsel_mask = PV88080_VBUCK2_MASK,
.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
},
/* BUCK3 */
.buck_regmap[2] = {
.buck_enable_reg = PV88080AA_REG_BUCK3_CONF0,
.buck_vsel_reg = PV88080AA_REG_BUCK3_CONF0,
.buck_mode_reg = PV88080AA_REG_BUCK3_CONF1,
.buck_limit_reg = PV88080AA_REG_BUCK3_CONF1,
.buck_vdac_range_reg = PV88080AA_REG_BUCK3_CONF2,
.buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
.buck_enable_mask = PV88080_BUCK3_EN,
.buck_vsel_mask = PV88080_VBUCK3_MASK,
.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
},
/* HVBUCK */
.hvbuck_enable_reg = PV88080AA_REG_HVBUCK_CONF2,
.hvbuck_vsel_reg = PV88080AA_REG_HVBUCK_CONF1,
.hvbuck_enable_mask = PV88080_HVBUCK_EN,
.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
};
static const struct pv88080_compatible_regmap pv88080_ba_regs = {
/* BUCK1 */
.buck_regmap[0] = {
.buck_enable_reg = PV88080BA_REG_BUCK1_CONF0,
.buck_vsel_reg = PV88080BA_REG_BUCK1_CONF0,
.buck_mode_reg = PV88080BA_REG_BUCK1_CONF1,
.buck_limit_reg = PV88080BA_REG_BUCK1_CONF1,
.buck_vdac_range_reg = PV88080BA_REG_BUCK1_CONF2,
.buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
.buck_enable_mask = PV88080_BUCK1_EN,
.buck_vsel_mask = PV88080_VBUCK1_MASK,
.buck_limit_mask = PV88080_BUCK1_ILIM_MASK,
},
/* BUCK2 */
.buck_regmap[1] = {
.buck_enable_reg = PV88080BA_REG_BUCK2_CONF0,
.buck_vsel_reg = PV88080BA_REG_BUCK2_CONF0,
.buck_mode_reg = PV88080BA_REG_BUCK2_CONF1,
.buck_limit_reg = PV88080BA_REG_BUCK2_CONF1,
.buck_vdac_range_reg = PV88080BA_REG_BUCK2_CONF2,
.buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
.buck_enable_mask = PV88080_BUCK2_EN,
.buck_vsel_mask = PV88080_VBUCK2_MASK,
.buck_limit_mask = PV88080_BUCK2_ILIM_MASK,
},
/* BUCK3 */
.buck_regmap[2] = {
.buck_enable_reg = PV88080BA_REG_BUCK3_CONF0,
.buck_vsel_reg = PV88080BA_REG_BUCK3_CONF0,
.buck_mode_reg = PV88080BA_REG_BUCK3_CONF1,
.buck_limit_reg = PV88080BA_REG_BUCK3_CONF1,
.buck_vdac_range_reg = PV88080BA_REG_BUCK3_CONF2,
.buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
.buck_enable_mask = PV88080_BUCK3_EN,
.buck_vsel_mask = PV88080_VBUCK3_MASK,
.buck_limit_mask = PV88080_BUCK3_ILIM_MASK,
},
/* HVBUCK */
.hvbuck_enable_reg = PV88080BA_REG_HVBUCK_CONF2,
.hvbuck_vsel_reg = PV88080BA_REG_HVBUCK_CONF1,
.hvbuck_enable_mask = PV88080_HVBUCK_EN,
.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
};
#ifdef CONFIG_OF
static const struct of_device_id pv88080_dt_ids[] = {
{ .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA },
{ .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
{ .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
{},
};
MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
#endif
static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
{
struct pv88080_regulator *info = rdev_get_drvdata(rdev);
unsigned int data;
int ret, mode = 0;
ret = regmap_read(rdev->regmap, info->mode_reg, &data);
if (ret < 0)
return ret;
switch (data & PV88080_BUCK1_MODE_MASK) {
case PV88080_BUCK_MODE_SYNC:
mode = REGULATOR_MODE_FAST;
break;
case PV88080_BUCK_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case PV88080_BUCK_MODE_SLEEP:
mode = REGULATOR_MODE_STANDBY;
break;
default:
return -EINVAL;
}
return mode;
}
static int pv88080_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct pv88080_regulator *info = rdev_get_drvdata(rdev);
int val = 0;
switch (mode) {
case REGULATOR_MODE_FAST:
val = PV88080_BUCK_MODE_SYNC;
break;
case REGULATOR_MODE_NORMAL:
val = PV88080_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = PV88080_BUCK_MODE_SLEEP;
break;
default:
return -EINVAL;
}
return regmap_update_bits(rdev->regmap, info->mode_reg,
PV88080_BUCK1_MODE_MASK, val);
}
static const struct regulator_ops pv88080_buck_ops = {
.get_mode = pv88080_buck_get_mode,
.set_mode = pv88080_buck_set_mode,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_current_limit = regulator_set_current_limit_regmap,
.get_current_limit = regulator_get_current_limit_regmap,
};
static const struct regulator_ops pv88080_hvbuck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
};
#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
{\
.desc = {\
.id = chip##_ID_##regl_name,\
.name = __stringify(chip##_##regl_name),\
.of_match = of_match_ptr(#regl_name),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.owner = THIS_MODULE,\
.ops = &pv88080_buck_ops,\
.min_uV = min, \
.uV_step = step, \
.n_voltages = ((max) - (min))/(step) + 1, \
.curr_table = limits_array, \
.n_current_limits = ARRAY_SIZE(limits_array), \
},\
}
#define PV88080_HVBUCK(chip, regl_name, min, step, max) \
{\
.desc = {\
.id = chip##_ID_##regl_name,\
.name = __stringify(chip##_##regl_name),\
.of_match = of_match_ptr(#regl_name),\
.regulators_node = of_match_ptr("regulators"),\
.type = REGULATOR_VOLTAGE,\
.owner = THIS_MODULE,\
.ops = &pv88080_hvbuck_ops,\
.min_uV = min, \
.uV_step = step, \
.n_voltages = ((max) - (min))/(step) + 1, \
},\
}
static struct pv88080_regulator pv88080_regulator_info[] = {
PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
pv88080_buck1_limits),
PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
pv88080_buck23_limits),
PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
pv88080_buck23_limits),
PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
};
static irqreturn_t pv88080_irq_handler(int irq, void *data)
{
struct pv88080 *chip = data;
int i, reg_val, err, ret = IRQ_NONE;
err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, ®_val);
if (err < 0)
goto error_i2c;
if (reg_val & PV88080_E_VDD_FLT) {
for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_UNDER_VOLTAGE,
NULL);
}
err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
PV88080_E_VDD_FLT);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
if (reg_val & PV88080_E_OVER_TEMP) {
for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_OVER_TEMP,
NULL);
}
err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
PV88080_E_OVER_TEMP);
if (err < 0)
goto error_i2c;
ret = IRQ_HANDLED;
}
return ret;
error_i2c:
dev_err(chip->dev, "I2C error : %d\n", err);
return IRQ_NONE;
}
/*
* I2C driver interface functions
*/
static int pv88080_i2c_probe(struct i2c_client *i2c)
{
const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
struct pv88080 *chip;
const struct pv88080_compatible_regmap *regmap_config;
const struct of_device_id *match;
struct regulator_config config = { };
int i, error, ret;
unsigned int conf2, conf5;
chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->dev = &i2c->dev;
chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
if (IS_ERR(chip->regmap)) {
error = PTR_ERR(chip->regmap);
dev_err(chip->dev, "Failed to allocate register map: %d\n",
error);
return error;
}
if (i2c->dev.of_node) {
match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
if (!match) {
dev_err(chip->dev, "Failed to get of_match_node\n");
return -EINVAL;
}
chip->type = (unsigned long)match->data;
} else {
chip->type = id->driver_data;
}
i2c_set_clientdata(i2c, chip);
if (i2c->irq != 0) {
ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask A reg: %d\n", ret);
return ret;
}
ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask B reg: %d\n", ret);
return ret;
}
ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
if (ret < 0) {
dev_err(chip->dev,
"Failed to mask C reg: %d\n", ret);
return ret;
}
ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
pv88080_irq_handler,
IRQF_TRIGGER_LOW|IRQF_ONESHOT,
"pv88080", chip);
if (ret != 0) {
dev_err(chip->dev, "Failed to request IRQ: %d\n",
i2c->irq);
return ret;
}
ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0);
if (ret < 0) {
dev_err(chip->dev,
"Failed to update mask reg: %d\n", ret);
return ret;
}
} else {
dev_warn(chip->dev, "No IRQ configured\n");
}
switch (chip->type) {
case TYPE_PV88080_AA:
chip->regmap_config = &pv88080_aa_regs;
break;
case TYPE_PV88080_BA:
chip->regmap_config = &pv88080_ba_regs;
break;
}
regmap_config = chip->regmap_config;
config.dev = chip->dev;
config.regmap = chip->regmap;
/* Registeration for BUCK1, 2, 3 */
for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
if (init_data)
config.init_data = &init_data[i];
pv88080_regulator_info[i].desc.csel_reg
= regmap_config->buck_regmap[i].buck_limit_reg;
pv88080_regulator_info[i].desc.csel_mask
= regmap_config->buck_regmap[i].buck_limit_mask;
pv88080_regulator_info[i].mode_reg
= regmap_config->buck_regmap[i].buck_mode_reg;
pv88080_regulator_info[i].conf2
= regmap_config->buck_regmap[i].buck_vdac_range_reg;
pv88080_regulator_info[i].conf5
= regmap_config->buck_regmap[i].buck_vrange_gain_reg;
pv88080_regulator_info[i].desc.enable_reg
= regmap_config->buck_regmap[i].buck_enable_reg;
pv88080_regulator_info[i].desc.enable_mask
= regmap_config->buck_regmap[i].buck_enable_mask;
pv88080_regulator_info[i].desc.vsel_reg
= regmap_config->buck_regmap[i].buck_vsel_reg;
pv88080_regulator_info[i].desc.vsel_mask
= regmap_config->buck_regmap[i].buck_vsel_mask;
ret = regmap_read(chip->regmap,
pv88080_regulator_info[i].conf2, &conf2);
if (ret < 0)
return ret;
conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
PV88080_BUCK_VDAC_RANGE_MASK);
ret = regmap_read(chip->regmap,
pv88080_regulator_info[i].conf5, &conf5);
if (ret < 0)
return ret;
conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
PV88080_BUCK_VRANGE_GAIN_MASK);
pv88080_regulator_info[i].desc.min_uV =
pv88080_buck_vol[conf2].min_uV * (conf5+1);
pv88080_regulator_info[i].desc.uV_step =
pv88080_buck_vol[conf2].uV_step * (conf5+1);
pv88080_regulator_info[i].desc.n_voltages =
((pv88080_buck_vol[conf2].max_uV * (conf5+1))
- (pv88080_regulator_info[i].desc.min_uV))
/(pv88080_regulator_info[i].desc.uV_step) + 1;
config.driver_data = (void *)&pv88080_regulator_info[i];
chip->rdev[i] = devm_regulator_register(chip->dev,
&pv88080_regulator_info[i].desc, &config);
if (IS_ERR(chip->rdev[i])) {
dev_err(chip->dev,
"Failed to register PV88080 regulator\n");
return PTR_ERR(chip->rdev[i]);
}
}
pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
= regmap_config->hvbuck_enable_reg;
pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
= regmap_config->hvbuck_enable_mask;
pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
= regmap_config->hvbuck_vsel_reg;
pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
= regmap_config->hvbuck_vsel_mask;
/* Registeration for HVBUCK */
if (init_data)
config.init_data = &init_data[PV88080_ID_HVBUCK];
config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
&pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
dev_err(chip->dev, "Failed to register PV88080 regulator\n");
return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
}
return 0;
}
static const struct i2c_device_id pv88080_i2c_id[] = {
{ "pv88080", TYPE_PV88080_AA },
{ "pv88080-aa", TYPE_PV88080_AA },
{ "pv88080-ba", TYPE_PV88080_BA },
{},
};
MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
static struct i2c_driver pv88080_regulator_driver = {
.driver = {
.name = "pv88080",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(pv88080_dt_ids),
},
.probe = pv88080_i2c_probe,
.id_table = pv88080_i2c_id,
};
module_i2c_driver(pv88080_regulator_driver);
MODULE_AUTHOR("James Ban <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/pv88080-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// Regulator driver for DA9055 PMIC
//
// Copyright(c) 2012 Dialog Semiconductor Ltd.
//
// Author: David Dajun Chen <[email protected]>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/da9055/core.h>
#include <linux/mfd/da9055/reg.h>
#include <linux/mfd/da9055/pdata.h>
#define DA9055_MIN_UA 0
#define DA9055_MAX_UA 3
#define DA9055_LDO_MODE_SYNC 0
#define DA9055_LDO_MODE_SLEEP 1
#define DA9055_BUCK_MODE_SLEEP 1
#define DA9055_BUCK_MODE_SYNC 2
#define DA9055_BUCK_MODE_AUTO 3
/* DA9055 REGULATOR IDs */
#define DA9055_ID_BUCK1 0
#define DA9055_ID_BUCK2 1
#define DA9055_ID_LDO1 2
#define DA9055_ID_LDO2 3
#define DA9055_ID_LDO3 4
#define DA9055_ID_LDO4 5
#define DA9055_ID_LDO5 6
#define DA9055_ID_LDO6 7
/* DA9055 BUCK current limit */
static const unsigned int da9055_current_limits[] = {
500000, 600000, 700000, 800000
};
struct da9055_conf_reg {
int reg;
int sel_mask;
int en_mask;
};
struct da9055_volt_reg {
int reg_a;
int reg_b;
int sl_shift;
int v_mask;
};
struct da9055_mode_reg {
int reg;
int mask;
int shift;
};
struct da9055_regulator_info {
struct regulator_desc reg_desc;
struct da9055_conf_reg conf;
struct da9055_volt_reg volt;
struct da9055_mode_reg mode;
};
struct da9055_regulator {
struct da9055 *da9055;
struct da9055_regulator_info *info;
struct regulator_dev *rdev;
enum gpio_select reg_rselect;
};
static unsigned int da9055_buck_get_mode(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
int ret, mode = 0;
ret = da9055_reg_read(regulator->da9055, info->mode.reg);
if (ret < 0)
return ret;
switch ((ret & info->mode.mask) >> info->mode.shift) {
case DA9055_BUCK_MODE_SYNC:
mode = REGULATOR_MODE_FAST;
break;
case DA9055_BUCK_MODE_AUTO:
mode = REGULATOR_MODE_NORMAL;
break;
case DA9055_BUCK_MODE_SLEEP:
mode = REGULATOR_MODE_STANDBY;
break;
}
return mode;
}
static int da9055_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
int val = 0;
switch (mode) {
case REGULATOR_MODE_FAST:
val = DA9055_BUCK_MODE_SYNC << info->mode.shift;
break;
case REGULATOR_MODE_NORMAL:
val = DA9055_BUCK_MODE_AUTO << info->mode.shift;
break;
case REGULATOR_MODE_STANDBY:
val = DA9055_BUCK_MODE_SLEEP << info->mode.shift;
break;
}
return da9055_reg_update(regulator->da9055, info->mode.reg,
info->mode.mask, val);
}
static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
int ret;
ret = da9055_reg_read(regulator->da9055, info->volt.reg_b);
if (ret < 0)
return ret;
if (ret >> info->volt.sl_shift)
return REGULATOR_MODE_STANDBY;
else
return REGULATOR_MODE_NORMAL;
}
static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
struct da9055_volt_reg volt = info->volt;
int val = 0;
switch (mode) {
case REGULATOR_MODE_NORMAL:
case REGULATOR_MODE_FAST:
val = DA9055_LDO_MODE_SYNC;
break;
case REGULATOR_MODE_STANDBY:
val = DA9055_LDO_MODE_SLEEP;
break;
}
return da9055_reg_update(regulator->da9055, volt.reg_b,
1 << volt.sl_shift,
val << volt.sl_shift);
}
static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
struct da9055_volt_reg volt = info->volt;
int ret, sel;
/*
* There are two voltage register set A & B for voltage ramping but
* either one of then can be active therefore we first determine
* the active register set.
*/
ret = da9055_reg_read(regulator->da9055, info->conf.reg);
if (ret < 0)
return ret;
ret &= info->conf.sel_mask;
/* Get the voltage for the active register set A/B */
if (ret == DA9055_REGUALTOR_SET_A)
ret = da9055_reg_read(regulator->da9055, volt.reg_a);
else
ret = da9055_reg_read(regulator->da9055, volt.reg_b);
if (ret < 0)
return ret;
sel = (ret & volt.v_mask);
return sel;
}
static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
int ret;
/*
* Regulator register set A/B is not selected through GPIO therefore
* we use default register set A for voltage ramping.
*/
if (regulator->reg_rselect == NO_GPIO) {
/* Select register set A */
ret = da9055_reg_update(regulator->da9055, info->conf.reg,
info->conf.sel_mask, DA9055_SEL_REG_A);
if (ret < 0)
return ret;
/* Set the voltage */
return da9055_reg_update(regulator->da9055, info->volt.reg_a,
info->volt.v_mask, selector);
}
/*
* Here regulator register set A/B is selected through GPIO.
* Therefore we first determine the selected register set A/B and
* then set the desired voltage for that register set A/B.
*/
ret = da9055_reg_read(regulator->da9055, info->conf.reg);
if (ret < 0)
return ret;
ret &= info->conf.sel_mask;
/* Set the voltage */
if (ret == DA9055_REGUALTOR_SET_A)
return da9055_reg_update(regulator->da9055, info->volt.reg_a,
info->volt.v_mask, selector);
else
return da9055_reg_update(regulator->da9055, info->volt.reg_b,
info->volt.v_mask, selector);
}
static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,
int uV)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
int ret;
/* Select register set B for suspend voltage ramping. */
if (regulator->reg_rselect == NO_GPIO) {
ret = da9055_reg_update(regulator->da9055, info->conf.reg,
info->conf.sel_mask, DA9055_SEL_REG_B);
if (ret < 0)
return ret;
}
ret = regulator_map_voltage_linear(rdev, uV, uV);
if (ret < 0)
return ret;
return da9055_reg_update(regulator->da9055, info->volt.reg_b,
info->volt.v_mask, ret);
}
static int da9055_suspend_enable(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
/* Select register set B for voltage ramping. */
if (regulator->reg_rselect == NO_GPIO)
return da9055_reg_update(regulator->da9055, info->conf.reg,
info->conf.sel_mask, DA9055_SEL_REG_B);
else
return 0;
}
static int da9055_suspend_disable(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
struct da9055_regulator_info *info = regulator->info;
/* Diselect register set B. */
if (regulator->reg_rselect == NO_GPIO)
return da9055_reg_update(regulator->da9055, info->conf.reg,
info->conf.sel_mask, DA9055_SEL_REG_A);
else
return 0;
}
static const struct regulator_ops da9055_buck_ops = {
.get_mode = da9055_buck_get_mode,
.set_mode = da9055_buck_set_mode,
.get_current_limit = regulator_get_current_limit_regmap,
.set_current_limit = regulator_set_current_limit_regmap,
.get_voltage_sel = da9055_regulator_get_voltage_sel,
.set_voltage_sel = da9055_regulator_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_suspend_voltage = da9055_regulator_set_suspend_voltage,
.set_suspend_enable = da9055_suspend_enable,
.set_suspend_disable = da9055_suspend_disable,
.set_suspend_mode = da9055_buck_set_mode,
};
static const struct regulator_ops da9055_ldo_ops = {
.get_mode = da9055_ldo_get_mode,
.set_mode = da9055_ldo_set_mode,
.get_voltage_sel = da9055_regulator_get_voltage_sel,
.set_voltage_sel = da9055_regulator_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.set_suspend_voltage = da9055_regulator_set_suspend_voltage,
.set_suspend_enable = da9055_suspend_enable,
.set_suspend_disable = da9055_suspend_disable,
.set_suspend_mode = da9055_ldo_set_mode,
};
#define DA9055_LDO(_id, step, min, max, vbits, voffset) \
{\
.reg_desc = {\
.name = #_id,\
.of_match = of_match_ptr(#_id),\
.regulators_node = of_match_ptr("regulators"),\
.ops = &da9055_ldo_ops,\
.type = REGULATOR_VOLTAGE,\
.id = DA9055_ID_##_id,\
.n_voltages = (max - min) / step + 1 + (voffset), \
.enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
.enable_mask = 1, \
.min_uV = (min) * 1000,\
.uV_step = (step) * 1000,\
.linear_min_sel = (voffset),\
.owner = THIS_MODULE,\
},\
.conf = {\
.reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
.sel_mask = (1 << 4),\
.en_mask = 1,\
},\
.volt = {\
.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
.sl_shift = 7,\
.v_mask = (1 << (vbits)) - 1,\
},\
}
#define DA9055_BUCK(_id, step, min, max, vbits, voffset, mbits, sbits) \
{\
.reg_desc = {\
.name = #_id,\
.of_match = of_match_ptr(#_id),\
.regulators_node = of_match_ptr("regulators"),\
.ops = &da9055_buck_ops,\
.type = REGULATOR_VOLTAGE,\
.id = DA9055_ID_##_id,\
.n_voltages = (max - min) / step + 1 + (voffset), \
.enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
.enable_mask = 1,\
.min_uV = (min) * 1000,\
.uV_step = (step) * 1000,\
.linear_min_sel = (voffset),\
.owner = THIS_MODULE,\
.curr_table = da9055_current_limits,\
.n_current_limits = ARRAY_SIZE(da9055_current_limits),\
.csel_reg = DA9055_REG_BUCK_LIM,\
.csel_mask = (mbits),\
},\
.conf = {\
.reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \
.sel_mask = (1 << 4),\
.en_mask = 1,\
},\
.volt = {\
.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
.sl_shift = 7,\
.v_mask = (1 << (vbits)) - 1,\
},\
.mode = {\
.reg = DA9055_REG_BCORE_MODE,\
.mask = (mbits),\
.shift = (sbits),\
},\
}
static struct da9055_regulator_info da9055_regulator_info[] = {
DA9055_BUCK(BUCK1, 25, 725, 2075, 6, 9, 0xc, 2),
DA9055_BUCK(BUCK2, 25, 925, 2500, 6, 0, 3, 0),
DA9055_LDO(LDO1, 50, 900, 3300, 6, 2),
DA9055_LDO(LDO2, 50, 900, 3300, 6, 3),
DA9055_LDO(LDO3, 50, 900, 3300, 6, 2),
DA9055_LDO(LDO4, 50, 900, 3300, 6, 2),
DA9055_LDO(LDO5, 50, 900, 2750, 6, 2),
DA9055_LDO(LDO6, 20, 900, 3300, 7, 0),
};
/*
* Configures regulator to be controlled either through GPIO 1 or 2.
* GPIO can control regulator state and/or select the regulator register
* set A/B for voltage ramping.
*/
static int da9055_gpio_init(struct da9055_regulator *regulator,
struct regulator_config *config,
struct da9055_pdata *pdata, int id)
{
struct da9055_regulator_info *info = regulator->info;
int ret = 0;
if (!pdata)
return 0;
if (pdata->gpio_ren && pdata->gpio_ren[id]) {
char name[18];
int gpio_mux = pdata->gpio_ren[id];
config->ena_gpiod = pdata->ena_gpiods[id];
/*
* GPI pin is muxed with regulator to control the
* regulator state.
*/
sprintf(name, "DA9055 GPI %d", gpio_mux);
ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
name);
if (ret < 0)
goto err;
/*
* Let the regulator know that its state is controlled
* through GPI.
*/
ret = da9055_reg_update(regulator->da9055, info->conf.reg,
DA9055_E_GPI_MASK,
pdata->reg_ren[id]
<< DA9055_E_GPI_SHIFT);
if (ret < 0)
goto err;
}
if (pdata->gpio_rsel && pdata->gpio_rsel[id]) {
char name[18];
int gpio_mux = pdata->gpio_rsel[id];
regulator->reg_rselect = pdata->reg_rsel[id];
/*
* GPI pin is muxed with regulator to select the
* regulator register set A/B for voltage ramping.
*/
sprintf(name, "DA9055 GPI %d", gpio_mux);
ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
name);
if (ret < 0)
goto err;
/*
* Let the regulator know that its register set A/B
* will be selected through GPI for voltage ramping.
*/
ret = da9055_reg_update(regulator->da9055, info->conf.reg,
DA9055_V_GPI_MASK,
pdata->reg_rsel[id]
<< DA9055_V_GPI_SHIFT);
}
err:
return ret;
}
static irqreturn_t da9055_ldo5_6_oc_irq(int irq, void *data)
{
struct da9055_regulator *regulator = data;
regulator_notifier_call_chain(regulator->rdev,
REGULATOR_EVENT_OVER_CURRENT, NULL);
return IRQ_HANDLED;
}
static inline struct da9055_regulator_info *find_regulator_info(int id)
{
struct da9055_regulator_info *info;
int i;
for (i = 0; i < ARRAY_SIZE(da9055_regulator_info); i++) {
info = &da9055_regulator_info[i];
if (info->reg_desc.id == id)
return info;
}
return NULL;
}
static int da9055_regulator_probe(struct platform_device *pdev)
{
struct regulator_config config = { };
struct da9055_regulator *regulator;
struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent);
struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
int ret, irq;
regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator),
GFP_KERNEL);
if (!regulator)
return -ENOMEM;
regulator->info = find_regulator_info(pdev->id);
if (regulator->info == NULL) {
dev_err(&pdev->dev, "invalid regulator ID specified\n");
return -EINVAL;
}
regulator->da9055 = da9055;
config.dev = da9055->dev;
config.driver_data = regulator;
config.regmap = da9055->regmap;
if (pdata)
config.init_data = pdata->regulators[pdev->id];
ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);
if (ret < 0)
return ret;
regulator->rdev = devm_regulator_register(&pdev->dev,
®ulator->info->reg_desc,
&config);
if (IS_ERR(regulator->rdev)) {
dev_err(&pdev->dev, "Failed to register regulator %s\n",
regulator->info->reg_desc.name);
return PTR_ERR(regulator->rdev);
}
/* Only LDO 5 and 6 has got the over current interrupt */
if (pdev->id == DA9055_ID_LDO5 || pdev->id == DA9055_ID_LDO6) {
irq = platform_get_irq_byname(pdev, "REGULATOR");
if (irq < 0)
return irq;
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
da9055_ldo5_6_oc_irq,
IRQF_TRIGGER_HIGH |
IRQF_ONESHOT |
IRQF_PROBE_SHARED,
pdev->name, regulator);
if (ret != 0) {
if (ret != -EBUSY) {
dev_err(&pdev->dev,
"Failed to request Regulator IRQ %d: %d\n",
irq, ret);
return ret;
}
}
}
platform_set_drvdata(pdev, regulator);
return 0;
}
static struct platform_driver da9055_regulator_driver = {
.probe = da9055_regulator_probe,
.driver = {
.name = "da9055-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static int __init da9055_regulator_init(void)
{
return platform_driver_register(&da9055_regulator_driver);
}
subsys_initcall(da9055_regulator_init);
static void __exit da9055_regulator_exit(void)
{
platform_driver_unregister(&da9055_regulator_driver);
}
module_exit(da9055_regulator_exit);
MODULE_AUTHOR("David Dajun Chen <[email protected]>");
MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9055 PMIC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9055-regulator");
| linux-master | drivers/regulator/da9055-regulator.c |
// SPDX-License-Identifier: GPL-2.0
//
// MP8867/MP8869 regulator driver
//
// Copyright (C) 2020 Synaptics Incorporated
//
// Author: Jisheng Zhang <[email protected]>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define MP886X_VSEL 0x00
#define MP886X_V_BOOT (1 << 7)
#define MP886X_SYSCNTLREG1 0x01
#define MP886X_MODE (1 << 0)
#define MP886X_SLEW_SHIFT 3
#define MP886X_SLEW_MASK (0x7 << MP886X_SLEW_SHIFT)
#define MP886X_GO (1 << 6)
#define MP886X_EN (1 << 7)
#define MP8869_SYSCNTLREG2 0x02
struct mp886x_cfg_info {
const struct regulator_ops *rops;
const unsigned int slew_rates[8];
const int switch_freq[4];
const u8 fs_reg;
const u8 fs_shift;
};
struct mp886x_device_info {
struct device *dev;
struct regulator_desc desc;
struct regulator_init_data *regulator;
struct gpio_desc *en_gpio;
const struct mp886x_cfg_info *ci;
u32 r[2];
unsigned int sel;
};
static void mp886x_set_switch_freq(struct mp886x_device_info *di,
struct regmap *regmap,
u32 freq)
{
const struct mp886x_cfg_info *ci = di->ci;
int i;
for (i = 0; i < ARRAY_SIZE(ci->switch_freq); i++) {
if (freq == ci->switch_freq[i]) {
regmap_update_bits(regmap, ci->fs_reg,
0x3 << ci->fs_shift, i << ci->fs_shift);
return;
}
}
dev_err(di->dev, "invalid frequency %d\n", freq);
}
static int mp886x_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
switch (mode) {
case REGULATOR_MODE_FAST:
regmap_update_bits(rdev->regmap, MP886X_SYSCNTLREG1,
MP886X_MODE, MP886X_MODE);
break;
case REGULATOR_MODE_NORMAL:
regmap_update_bits(rdev->regmap, MP886X_SYSCNTLREG1,
MP886X_MODE, 0);
break;
default:
return -EINVAL;
}
return 0;
}
static unsigned int mp886x_get_mode(struct regulator_dev *rdev)
{
u32 val;
int ret;
ret = regmap_read(rdev->regmap, MP886X_SYSCNTLREG1, &val);
if (ret < 0)
return ret;
if (val & MP886X_MODE)
return REGULATOR_MODE_FAST;
else
return REGULATOR_MODE_NORMAL;
}
static int mp8869_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
{
int ret;
ret = regmap_update_bits(rdev->regmap, MP886X_SYSCNTLREG1,
MP886X_GO, MP886X_GO);
if (ret < 0)
return ret;
sel <<= ffs(rdev->desc->vsel_mask) - 1;
return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg,
MP886X_V_BOOT | rdev->desc->vsel_mask, sel);
}
static inline unsigned int mp8869_scale(unsigned int uv, u32 r1, u32 r2)
{
u32 tmp = uv * r1 / r2;
return uv + tmp;
}
static int mp8869_get_voltage_sel(struct regulator_dev *rdev)
{
struct mp886x_device_info *di = rdev_get_drvdata(rdev);
int ret, uv;
unsigned int val;
bool fbloop;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (ret)
return ret;
fbloop = val & MP886X_V_BOOT;
if (fbloop) {
uv = rdev->desc->min_uV;
uv = mp8869_scale(uv, di->r[0], di->r[1]);
return regulator_map_voltage_linear(rdev, uv, uv);
}
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
return val;
}
static const struct regulator_ops mp8869_regulator_ops = {
.set_voltage_sel = mp8869_set_voltage_sel,
.get_voltage_sel = mp8869_get_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.map_voltage = regulator_map_voltage_linear,
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = mp886x_set_mode,
.get_mode = mp886x_get_mode,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
};
static const struct mp886x_cfg_info mp8869_ci = {
.rops = &mp8869_regulator_ops,
.slew_rates = {
40000,
30000,
20000,
10000,
5000,
2500,
1250,
625,
},
.switch_freq = {
500000,
750000,
1000000,
1250000,
},
.fs_reg = MP8869_SYSCNTLREG2,
.fs_shift = 4,
};
static int mp8867_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
{
struct mp886x_device_info *di = rdev_get_drvdata(rdev);
int ret, delta;
ret = mp8869_set_voltage_sel(rdev, sel);
if (ret < 0)
return ret;
delta = di->sel - sel;
if (abs(delta) <= 5)
ret = regmap_update_bits(rdev->regmap, MP886X_SYSCNTLREG1,
MP886X_GO, 0);
di->sel = sel;
return ret;
}
static int mp8867_get_voltage_sel(struct regulator_dev *rdev)
{
struct mp886x_device_info *di = rdev_get_drvdata(rdev);
int ret, uv;
unsigned int val;
bool fbloop;
ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
if (ret)
return ret;
fbloop = val & MP886X_V_BOOT;
val &= rdev->desc->vsel_mask;
val >>= ffs(rdev->desc->vsel_mask) - 1;
if (fbloop) {
uv = regulator_list_voltage_linear(rdev, val);
uv = mp8869_scale(uv, di->r[0], di->r[1]);
return regulator_map_voltage_linear(rdev, uv, uv);
}
return val;
}
static const struct regulator_ops mp8867_regulator_ops = {
.set_voltage_sel = mp8867_set_voltage_sel,
.get_voltage_sel = mp8867_get_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.map_voltage = regulator_map_voltage_linear,
.list_voltage = regulator_list_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_mode = mp886x_set_mode,
.get_mode = mp886x_get_mode,
.set_ramp_delay = regulator_set_ramp_delay_regmap,
};
static const struct mp886x_cfg_info mp8867_ci = {
.rops = &mp8867_regulator_ops,
.slew_rates = {
64000,
32000,
16000,
8000,
4000,
2000,
1000,
500,
},
.switch_freq = {
500000,
750000,
1000000,
1500000,
},
.fs_reg = MP886X_SYSCNTLREG1,
.fs_shift = 1,
};
static int mp886x_regulator_register(struct mp886x_device_info *di,
struct regulator_config *config)
{
struct regulator_desc *rdesc = &di->desc;
struct regulator_dev *rdev;
rdesc->name = "mp886x-reg";
rdesc->supply_name = "vin";
rdesc->ops = di->ci->rops;
rdesc->type = REGULATOR_VOLTAGE;
rdesc->n_voltages = 128;
rdesc->enable_reg = MP886X_SYSCNTLREG1;
rdesc->enable_mask = MP886X_EN;
rdesc->min_uV = 600000;
rdesc->uV_step = 10000;
rdesc->vsel_reg = MP886X_VSEL;
rdesc->vsel_mask = 0x3f;
rdesc->ramp_reg = MP886X_SYSCNTLREG1;
rdesc->ramp_mask = MP886X_SLEW_MASK;
rdesc->ramp_delay_table = di->ci->slew_rates;
rdesc->n_ramp_values = ARRAY_SIZE(di->ci->slew_rates);
rdesc->owner = THIS_MODULE;
rdev = devm_regulator_register(di->dev, &di->desc, config);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
di->sel = rdesc->ops->get_voltage_sel(rdev);
return 0;
}
static const struct regmap_config mp886x_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static int mp886x_i2c_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct device_node *np = dev->of_node;
struct mp886x_device_info *di;
struct regulator_config config = { };
struct regmap *regmap;
u32 freq;
int ret;
di = devm_kzalloc(dev, sizeof(struct mp886x_device_info), GFP_KERNEL);
if (!di)
return -ENOMEM;
di->regulator = of_get_regulator_init_data(dev, np, &di->desc);
if (!di->regulator) {
dev_err(dev, "Platform data not found!\n");
return -EINVAL;
}
ret = of_property_read_u32_array(np, "mps,fb-voltage-divider",
di->r, 2);
if (ret)
return ret;
di->en_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(di->en_gpio))
return PTR_ERR(di->en_gpio);
di->ci = of_device_get_match_data(dev);
di->dev = dev;
regmap = devm_regmap_init_i2c(client, &mp886x_regmap_config);
if (IS_ERR(regmap)) {
dev_err(dev, "Failed to allocate regmap!\n");
return PTR_ERR(regmap);
}
i2c_set_clientdata(client, di);
config.dev = di->dev;
config.init_data = di->regulator;
config.regmap = regmap;
config.driver_data = di;
config.of_node = np;
if (!of_property_read_u32(np, "mps,switch-frequency-hz", &freq))
mp886x_set_switch_freq(di, regmap, freq);
ret = mp886x_regulator_register(di, &config);
if (ret < 0)
dev_err(dev, "Failed to register regulator!\n");
return ret;
}
static const struct of_device_id mp886x_dt_ids[] = {
{
.compatible = "mps,mp8867",
.data = &mp8867_ci
},
{
.compatible = "mps,mp8869",
.data = &mp8869_ci
},
{ }
};
MODULE_DEVICE_TABLE(of, mp886x_dt_ids);
static const struct i2c_device_id mp886x_id[] = {
{ "mp886x", },
{ },
};
MODULE_DEVICE_TABLE(i2c, mp886x_id);
static struct i2c_driver mp886x_regulator_driver = {
.driver = {
.name = "mp886x-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = mp886x_dt_ids,
},
.probe = mp886x_i2c_probe,
.id_table = mp886x_id,
};
module_i2c_driver(mp886x_regulator_driver);
MODULE_AUTHOR("Jisheng Zhang <[email protected]>");
MODULE_DESCRIPTION("MP886x regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/mp886x.c |
// SPDX-License-Identifier: GPL-2.0
//
// Regulator controller driver for UniPhier SoC
// Copyright 2018 Socionext Inc.
// Author: Kunihiko Hayashi <[email protected]>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/reset.h>
#define MAX_CLKS 2
#define MAX_RSTS 2
struct uniphier_regulator_soc_data {
int nclks;
const char * const *clock_names;
int nrsts;
const char * const *reset_names;
const struct regulator_desc *desc;
const struct regmap_config *regconf;
};
struct uniphier_regulator_priv {
struct clk_bulk_data clk[MAX_CLKS];
struct reset_control *rst[MAX_RSTS];
const struct uniphier_regulator_soc_data *data;
};
static const struct regulator_ops uniphier_regulator_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static int uniphier_regulator_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct uniphier_regulator_priv *priv;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct regmap *regmap;
void __iomem *base;
const char *name;
int i, ret, nr;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->data = of_device_get_match_data(dev);
if (WARN_ON(!priv->data))
return -EINVAL;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
for (i = 0; i < priv->data->nclks; i++)
priv->clk[i].id = priv->data->clock_names[i];
ret = devm_clk_bulk_get(dev, priv->data->nclks, priv->clk);
if (ret)
return ret;
for (i = 0; i < priv->data->nrsts; i++) {
name = priv->data->reset_names[i];
priv->rst[i] = devm_reset_control_get_shared(dev, name);
if (IS_ERR(priv->rst[i]))
return PTR_ERR(priv->rst[i]);
}
ret = clk_bulk_prepare_enable(priv->data->nclks, priv->clk);
if (ret)
return ret;
for (nr = 0; nr < priv->data->nrsts; nr++) {
ret = reset_control_deassert(priv->rst[nr]);
if (ret)
goto out_rst_assert;
}
regmap = devm_regmap_init_mmio(dev, base, priv->data->regconf);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
goto out_rst_assert;
}
config.dev = dev;
config.driver_data = priv;
config.of_node = dev->of_node;
config.regmap = regmap;
config.init_data = of_get_regulator_init_data(dev, dev->of_node,
priv->data->desc);
rdev = devm_regulator_register(dev, priv->data->desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
goto out_rst_assert;
}
platform_set_drvdata(pdev, priv);
return 0;
out_rst_assert:
while (nr--)
reset_control_assert(priv->rst[nr]);
clk_bulk_disable_unprepare(priv->data->nclks, priv->clk);
return ret;
}
static int uniphier_regulator_remove(struct platform_device *pdev)
{
struct uniphier_regulator_priv *priv = platform_get_drvdata(pdev);
int i;
for (i = 0; i < priv->data->nrsts; i++)
reset_control_assert(priv->rst[i]);
clk_bulk_disable_unprepare(priv->data->nclks, priv->clk);
return 0;
}
/* USB3 controller data */
#define USB3VBUS_OFFSET 0x0
#define USB3VBUS_REG BIT(4)
#define USB3VBUS_REG_EN BIT(3)
static const struct regulator_desc uniphier_usb3_regulator_desc = {
.name = "vbus",
.of_match = of_match_ptr("vbus"),
.ops = &uniphier_regulator_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.enable_reg = USB3VBUS_OFFSET,
.enable_mask = USB3VBUS_REG_EN | USB3VBUS_REG,
.enable_val = USB3VBUS_REG_EN | USB3VBUS_REG,
.disable_val = USB3VBUS_REG_EN,
};
static const struct regmap_config uniphier_usb3_regulator_regconf = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.max_register = 1,
};
static const char * const uniphier_pro4_clock_reset_names[] = {
"gio", "link",
};
static const struct uniphier_regulator_soc_data uniphier_pro4_usb3_data = {
.nclks = ARRAY_SIZE(uniphier_pro4_clock_reset_names),
.clock_names = uniphier_pro4_clock_reset_names,
.nrsts = ARRAY_SIZE(uniphier_pro4_clock_reset_names),
.reset_names = uniphier_pro4_clock_reset_names,
.desc = &uniphier_usb3_regulator_desc,
.regconf = &uniphier_usb3_regulator_regconf,
};
static const char * const uniphier_pxs2_clock_reset_names[] = {
"link",
};
static const struct uniphier_regulator_soc_data uniphier_pxs2_usb3_data = {
.nclks = ARRAY_SIZE(uniphier_pxs2_clock_reset_names),
.clock_names = uniphier_pxs2_clock_reset_names,
.nrsts = ARRAY_SIZE(uniphier_pxs2_clock_reset_names),
.reset_names = uniphier_pxs2_clock_reset_names,
.desc = &uniphier_usb3_regulator_desc,
.regconf = &uniphier_usb3_regulator_regconf,
};
static const struct of_device_id uniphier_regulator_match[] = {
/* USB VBUS */
{
.compatible = "socionext,uniphier-pro4-usb3-regulator",
.data = &uniphier_pro4_usb3_data,
},
{
.compatible = "socionext,uniphier-pro5-usb3-regulator",
.data = &uniphier_pro4_usb3_data,
},
{
.compatible = "socionext,uniphier-pxs2-usb3-regulator",
.data = &uniphier_pxs2_usb3_data,
},
{
.compatible = "socionext,uniphier-ld20-usb3-regulator",
.data = &uniphier_pxs2_usb3_data,
},
{
.compatible = "socionext,uniphier-pxs3-usb3-regulator",
.data = &uniphier_pxs2_usb3_data,
},
{
.compatible = "socionext,uniphier-nx1-usb3-regulator",
.data = &uniphier_pxs2_usb3_data,
},
{ /* Sentinel */ },
};
MODULE_DEVICE_TABLE(of, uniphier_regulator_match);
static struct platform_driver uniphier_regulator_driver = {
.probe = uniphier_regulator_probe,
.remove = uniphier_regulator_remove,
.driver = {
.name = "uniphier-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = uniphier_regulator_match,
},
};
module_platform_driver(uniphier_regulator_driver);
MODULE_AUTHOR("Kunihiko Hayashi <[email protected]>");
MODULE_DESCRIPTION("UniPhier Regulator Controller Driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/uniphier-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014, Sony Mobile Communications AB.
* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/qcom_rpm.h>
#include <dt-bindings/mfd/qcom-rpm.h>
#define MAX_REQUEST_LEN 2
struct request_member {
int word;
unsigned int mask;
int shift;
};
struct rpm_reg_parts {
struct request_member mV; /* used if voltage is in mV */
struct request_member uV; /* used if voltage is in uV */
struct request_member ip; /* peak current in mA */
struct request_member pd; /* pull down enable */
struct request_member ia; /* average current in mA */
struct request_member fm; /* force mode */
struct request_member pm; /* power mode */
struct request_member pc; /* pin control */
struct request_member pf; /* pin function */
struct request_member enable_state; /* NCP and switch */
struct request_member comp_mode; /* NCP */
struct request_member freq; /* frequency: NCP and SMPS */
struct request_member freq_clk_src; /* clock source: SMPS */
struct request_member hpm; /* switch: control OCP and SS */
int request_len;
};
#define FORCE_MODE_IS_2_BITS(reg) \
(((reg)->parts->fm.mask >> (reg)->parts->fm.shift) == 3)
struct qcom_rpm_reg {
struct qcom_rpm *rpm;
struct mutex lock;
struct device *dev;
struct regulator_desc desc;
const struct rpm_reg_parts *parts;
int resource;
u32 val[MAX_REQUEST_LEN];
int uV;
int is_enabled;
bool supports_force_mode_auto;
bool supports_force_mode_bypass;
};
static const struct rpm_reg_parts rpm8660_ldo_parts = {
.request_len = 2,
.mV = { 0, 0x00000FFF, 0 },
.ip = { 0, 0x00FFF000, 12 },
.fm = { 0, 0x03000000, 24 },
.pc = { 0, 0x3C000000, 26 },
.pf = { 0, 0xC0000000, 30 },
.pd = { 1, 0x00000001, 0 },
.ia = { 1, 0x00001FFE, 1 },
};
static const struct rpm_reg_parts rpm8660_smps_parts = {
.request_len = 2,
.mV = { 0, 0x00000FFF, 0 },
.ip = { 0, 0x00FFF000, 12 },
.fm = { 0, 0x03000000, 24 },
.pc = { 0, 0x3C000000, 26 },
.pf = { 0, 0xC0000000, 30 },
.pd = { 1, 0x00000001, 0 },
.ia = { 1, 0x00001FFE, 1 },
.freq = { 1, 0x001FE000, 13 },
.freq_clk_src = { 1, 0x00600000, 21 },
};
static const struct rpm_reg_parts rpm8660_switch_parts = {
.request_len = 1,
.enable_state = { 0, 0x00000001, 0 },
.pd = { 0, 0x00000002, 1 },
.pc = { 0, 0x0000003C, 2 },
.pf = { 0, 0x000000C0, 6 },
.hpm = { 0, 0x00000300, 8 },
};
static const struct rpm_reg_parts rpm8660_ncp_parts = {
.request_len = 1,
.mV = { 0, 0x00000FFF, 0 },
.enable_state = { 0, 0x00001000, 12 },
.comp_mode = { 0, 0x00002000, 13 },
.freq = { 0, 0x003FC000, 14 },
};
static const struct rpm_reg_parts rpm8960_ldo_parts = {
.request_len = 2,
.uV = { 0, 0x007FFFFF, 0 },
.pd = { 0, 0x00800000, 23 },
.pc = { 0, 0x0F000000, 24 },
.pf = { 0, 0xF0000000, 28 },
.ip = { 1, 0x000003FF, 0 },
.ia = { 1, 0x000FFC00, 10 },
.fm = { 1, 0x00700000, 20 },
};
static const struct rpm_reg_parts rpm8960_smps_parts = {
.request_len = 2,
.uV = { 0, 0x007FFFFF, 0 },
.pd = { 0, 0x00800000, 23 },
.pc = { 0, 0x0F000000, 24 },
.pf = { 0, 0xF0000000, 28 },
.ip = { 1, 0x000003FF, 0 },
.ia = { 1, 0x000FFC00, 10 },
.fm = { 1, 0x00700000, 20 },
.pm = { 1, 0x00800000, 23 },
.freq = { 1, 0x1F000000, 24 },
.freq_clk_src = { 1, 0x60000000, 29 },
};
static const struct rpm_reg_parts rpm8960_switch_parts = {
.request_len = 1,
.enable_state = { 0, 0x00000001, 0 },
.pd = { 0, 0x00000002, 1 },
.pc = { 0, 0x0000003C, 2 },
.pf = { 0, 0x000003C0, 6 },
.hpm = { 0, 0x00000C00, 10 },
};
static const struct rpm_reg_parts rpm8960_ncp_parts = {
.request_len = 1,
.uV = { 0, 0x007FFFFF, 0 },
.enable_state = { 0, 0x00800000, 23 },
.comp_mode = { 0, 0x01000000, 24 },
.freq = { 0, 0x3E000000, 25 },
};
/*
* Physically available PMIC regulator voltage ranges
*/
static const struct linear_range pldo_ranges[] = {
REGULATOR_LINEAR_RANGE( 750000, 0, 59, 12500),
REGULATOR_LINEAR_RANGE(1500000, 60, 123, 25000),
REGULATOR_LINEAR_RANGE(3100000, 124, 160, 50000),
};
static const struct linear_range nldo_ranges[] = {
REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500),
};
static const struct linear_range nldo1200_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 59, 6250),
REGULATOR_LINEAR_RANGE( 750000, 60, 123, 12500),
};
static const struct linear_range smps_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500),
REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500),
REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000),
};
static const struct linear_range ftsmps_ranges[] = {
REGULATOR_LINEAR_RANGE( 350000, 0, 6, 50000),
REGULATOR_LINEAR_RANGE( 700000, 7, 63, 12500),
REGULATOR_LINEAR_RANGE(1500000, 64, 100, 50000),
};
static const struct linear_range smb208_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500),
REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500),
REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000),
REGULATOR_LINEAR_RANGE(3100000, 154, 234, 25000),
};
static const struct linear_range ncp_ranges[] = {
REGULATOR_LINEAR_RANGE(1500000, 0, 31, 50000),
};
static int rpm_reg_write(struct qcom_rpm_reg *vreg,
const struct request_member *req,
const int value)
{
if (WARN_ON((value << req->shift) & ~req->mask))
return -EINVAL;
vreg->val[req->word] &= ~req->mask;
vreg->val[req->word] |= value << req->shift;
return qcom_rpm_write(vreg->rpm,
QCOM_RPM_ACTIVE_STATE,
vreg->resource,
vreg->val,
vreg->parts->request_len);
}
static int rpm_reg_set_mV_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret = 0;
int uV;
if (req->mask == 0)
return -EINVAL;
uV = regulator_list_voltage_linear_range(rdev, selector);
if (uV < 0)
return uV;
mutex_lock(&vreg->lock);
if (vreg->is_enabled)
ret = rpm_reg_write(vreg, req, uV / 1000);
if (!ret)
vreg->uV = uV;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_set_uV_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret = 0;
int uV;
if (req->mask == 0)
return -EINVAL;
uV = regulator_list_voltage_linear_range(rdev, selector);
if (uV < 0)
return uV;
mutex_lock(&vreg->lock);
if (vreg->is_enabled)
ret = rpm_reg_write(vreg, req, uV);
if (!ret)
vreg->uV = uV;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_get_voltage(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
return vreg->uV;
}
static int rpm_reg_mV_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, vreg->uV / 1000);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_uV_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, vreg->uV);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_switch_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->enable_state;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 1);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_mV_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_uV_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_switch_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->enable_state;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_is_enabled(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
return vreg->is_enabled;
}
static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->ia;
int load_mA = load_uA / 1000;
int max_mA = req->mask >> req->shift;
int ret;
if (req->mask == 0)
return -EINVAL;
if (load_mA > max_mA)
load_mA = max_mA;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, load_mA);
mutex_unlock(&vreg->lock);
return ret;
}
static const struct regulator_ops uV_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = rpm_reg_set_uV_sel,
.get_voltage = rpm_reg_get_voltage,
.enable = rpm_reg_uV_enable,
.disable = rpm_reg_uV_disable,
.is_enabled = rpm_reg_is_enabled,
.set_load = rpm_reg_set_load,
};
static const struct regulator_ops mV_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = rpm_reg_set_mV_sel,
.get_voltage = rpm_reg_get_voltage,
.enable = rpm_reg_mV_enable,
.disable = rpm_reg_mV_disable,
.is_enabled = rpm_reg_is_enabled,
.set_load = rpm_reg_set_load,
};
static const struct regulator_ops switch_ops = {
.enable = rpm_reg_switch_enable,
.disable = rpm_reg_switch_disable,
.is_enabled = rpm_reg_is_enabled,
};
/*
* PM8018 regulators
*/
static const struct qcom_rpm_reg pm8018_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8960_switch_parts,
};
/*
* PM8058 regulators
*/
static const struct qcom_rpm_reg pm8058_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &mV_ops,
.parts = &rpm8660_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_ncp = {
.desc.linear_ranges = ncp_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges),
.desc.n_voltages = 32,
.desc.ops = &mV_ops,
.parts = &rpm8660_ncp_parts,
};
static const struct qcom_rpm_reg pm8058_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8660_switch_parts,
};
/*
* PM8901 regulators
*/
static const struct qcom_rpm_reg pm8901_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8901_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8901_ftsmps = {
.desc.linear_ranges = ftsmps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges),
.desc.n_voltages = 101,
.desc.ops = &mV_ops,
.parts = &rpm8660_smps_parts,
.supports_force_mode_auto = true,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8901_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8660_switch_parts,
};
/*
* PM8921 regulators
*/
static const struct qcom_rpm_reg pm8921_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_nldo1200 = {
.desc.linear_ranges = nldo1200_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo1200_ranges),
.desc.n_voltages = 124,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = true,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8921_ncp = {
.desc.linear_ranges = ncp_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges),
.desc.n_voltages = 32,
.desc.ops = &uV_ops,
.parts = &rpm8960_ncp_parts,
};
static const struct qcom_rpm_reg pm8921_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8960_switch_parts,
};
static const struct qcom_rpm_reg smb208_smps = {
.desc.linear_ranges = smb208_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smb208_ranges),
.desc.n_voltages = 235,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static int rpm_reg_set(struct qcom_rpm_reg *vreg,
const struct request_member *req,
const int value)
{
if (req->mask == 0 || (value << req->shift) & ~req->mask)
return -EINVAL;
vreg->val[req->word] &= ~req->mask;
vreg->val[req->word] |= value << req->shift;
return 0;
}
static int rpm_reg_of_parse_freq(struct device *dev,
struct device_node *node,
struct qcom_rpm_reg *vreg)
{
static const int freq_table[] = {
19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000,
2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000,
1280000, 1200000,
};
const char *key;
u32 freq;
int ret;
int i;
key = "qcom,switch-mode-frequency";
ret = of_property_read_u32(node, key, &freq);
if (ret) {
dev_err(dev, "regulator requires %s property\n", key);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(freq_table); i++) {
if (freq == freq_table[i]) {
rpm_reg_set(vreg, &vreg->parts->freq, i + 1);
return 0;
}
}
dev_err(dev, "invalid frequency %d\n", freq);
return -EINVAL;
}
static int rpm_reg_of_parse(struct device_node *node,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct qcom_rpm_reg *vreg = config->driver_data;
struct device *dev = config->dev;
const char *key;
u32 force_mode;
bool pwm;
u32 val;
int ret;
key = "bias-pull-down";
if (of_property_read_bool(node, key)) {
ret = rpm_reg_set(vreg, &vreg->parts->pd, 1);
if (ret) {
dev_err(dev, "%s is invalid", key);
return ret;
}
}
if (vreg->parts->freq.mask) {
ret = rpm_reg_of_parse_freq(dev, node, vreg);
if (ret < 0)
return ret;
}
if (vreg->parts->pm.mask) {
key = "qcom,power-mode-hysteretic";
pwm = !of_property_read_bool(node, key);
ret = rpm_reg_set(vreg, &vreg->parts->pm, pwm);
if (ret) {
dev_err(dev, "failed to set power mode\n");
return ret;
}
}
if (vreg->parts->fm.mask) {
force_mode = -1;
key = "qcom,force-mode";
ret = of_property_read_u32(node, key, &val);
if (ret == -EINVAL) {
val = QCOM_RPM_FORCE_MODE_NONE;
} else if (ret < 0) {
dev_err(dev, "failed to read %s\n", key);
return ret;
}
/*
* If force-mode is encoded as 2 bits then the
* possible register values are:
* NONE, LPM, HPM
* otherwise:
* NONE, LPM, AUTO, HPM, BYPASS
*/
switch (val) {
case QCOM_RPM_FORCE_MODE_NONE:
force_mode = 0;
break;
case QCOM_RPM_FORCE_MODE_LPM:
force_mode = 1;
break;
case QCOM_RPM_FORCE_MODE_HPM:
if (FORCE_MODE_IS_2_BITS(vreg))
force_mode = 2;
else
force_mode = 3;
break;
case QCOM_RPM_FORCE_MODE_AUTO:
if (vreg->supports_force_mode_auto)
force_mode = 2;
break;
case QCOM_RPM_FORCE_MODE_BYPASS:
if (vreg->supports_force_mode_bypass)
force_mode = 4;
break;
}
if (force_mode == -1) {
dev_err(dev, "invalid force mode\n");
return -EINVAL;
}
ret = rpm_reg_set(vreg, &vreg->parts->fm, force_mode);
if (ret) {
dev_err(dev, "failed to set force mode\n");
return ret;
}
}
return 0;
}
struct rpm_regulator_data {
const char *name;
int resource;
const struct qcom_rpm_reg *template;
const char *supply;
};
static const struct rpm_regulator_data rpm_pm8018_regulators[] = {
{ "s1", QCOM_RPM_PM8018_SMPS1, &pm8018_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8018_SMPS2, &pm8018_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8018_SMPS3, &pm8018_smps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8018_SMPS4, &pm8018_smps, "vdd_s4" },
{ "s5", QCOM_RPM_PM8018_SMPS5, &pm8018_smps, "vdd_s5" },
{ "l2", QCOM_RPM_PM8018_LDO2, &pm8018_pldo, "vdd_l2" },
{ "l3", QCOM_RPM_PM8018_LDO3, &pm8018_pldo, "vdd_l3" },
{ "l4", QCOM_RPM_PM8018_LDO4, &pm8018_pldo, "vdd_l4" },
{ "l5", QCOM_RPM_PM8018_LDO5, &pm8018_pldo, "vdd_l5" },
{ "l6", QCOM_RPM_PM8018_LDO6, &pm8018_pldo, "vdd_l7" },
{ "l7", QCOM_RPM_PM8018_LDO7, &pm8018_pldo, "vdd_l7" },
{ "l8", QCOM_RPM_PM8018_LDO8, &pm8018_nldo, "vdd_l8" },
{ "l9", QCOM_RPM_PM8018_LDO9, &pm8921_nldo1200,
"vdd_l9_l10_l11_l12" },
{ "l10", QCOM_RPM_PM8018_LDO10, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l11", QCOM_RPM_PM8018_LDO11, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l12", QCOM_RPM_PM8018_LDO12, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l14", QCOM_RPM_PM8018_LDO14, &pm8018_pldo, "vdd_l14" },
{ "lvs1", QCOM_RPM_PM8018_LVS1, &pm8018_switch, "lvs1_in" },
{ }
};
static const struct rpm_regulator_data rpm_pm8058_regulators[] = {
{ "s0", QCOM_RPM_PM8058_SMPS0, &pm8058_smps, "vdd_s0" },
{ "s1", QCOM_RPM_PM8058_SMPS1, &pm8058_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8058_SMPS2, &pm8058_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8058_SMPS3, &pm8058_smps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8058_SMPS4, &pm8058_smps, "vdd_s4" },
{ "l0", QCOM_RPM_PM8058_LDO0, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l1", QCOM_RPM_PM8058_LDO1, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l2", QCOM_RPM_PM8058_LDO2, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l3", QCOM_RPM_PM8058_LDO3, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l4", QCOM_RPM_PM8058_LDO4, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l5", QCOM_RPM_PM8058_LDO5, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l6", QCOM_RPM_PM8058_LDO6, &pm8058_pldo, "vdd_l6_l7" },
{ "l7", QCOM_RPM_PM8058_LDO7, &pm8058_pldo, "vdd_l6_l7" },
{ "l8", QCOM_RPM_PM8058_LDO8, &pm8058_pldo, "vdd_l8" },
{ "l9", QCOM_RPM_PM8058_LDO9, &pm8058_pldo, "vdd_l9" },
{ "l10", QCOM_RPM_PM8058_LDO10, &pm8058_pldo, "vdd_l10" },
{ "l11", QCOM_RPM_PM8058_LDO11, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l12", QCOM_RPM_PM8058_LDO12, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l13", QCOM_RPM_PM8058_LDO13, &pm8058_pldo, "vdd_l13_l16" },
{ "l14", QCOM_RPM_PM8058_LDO14, &pm8058_pldo, "vdd_l14_l15" },
{ "l15", QCOM_RPM_PM8058_LDO15, &pm8058_pldo, "vdd_l14_l15" },
{ "l16", QCOM_RPM_PM8058_LDO16, &pm8058_pldo, "vdd_l13_l16" },
{ "l17", QCOM_RPM_PM8058_LDO17, &pm8058_pldo, "vdd_l17_l18" },
{ "l18", QCOM_RPM_PM8058_LDO18, &pm8058_pldo, "vdd_l17_l18" },
{ "l19", QCOM_RPM_PM8058_LDO19, &pm8058_pldo, "vdd_l19_l20" },
{ "l20", QCOM_RPM_PM8058_LDO20, &pm8058_pldo, "vdd_l19_l20" },
{ "l21", QCOM_RPM_PM8058_LDO21, &pm8058_nldo, "vdd_l21" },
{ "l22", QCOM_RPM_PM8058_LDO22, &pm8058_nldo, "vdd_l22" },
{ "l23", QCOM_RPM_PM8058_LDO23, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "l24", QCOM_RPM_PM8058_LDO24, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "l25", QCOM_RPM_PM8058_LDO25, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" },
{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" },
{ "ncp", QCOM_RPM_PM8058_NCP, &pm8058_ncp, "vdd_ncp" },
{ }
};
static const struct rpm_regulator_data rpm_pm8901_regulators[] = {
{ "s0", QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
{ "s1", QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
{ "l0", QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" },
{ "l1", QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" },
{ "l2", QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" },
{ "l3", QCOM_RPM_PM8901_LDO3, &pm8901_pldo, "vdd_l3" },
{ "l4", QCOM_RPM_PM8901_LDO4, &pm8901_pldo, "vdd_l4" },
{ "l5", QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" },
{ "l6", QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" },
{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" },
{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" },
{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" },
{ "lvs3", QCOM_RPM_PM8901_LVS3, &pm8901_switch, "lvs3_in" },
{ "mvs", QCOM_RPM_PM8901_MVS, &pm8901_switch, "mvs_in" },
{ }
};
static const struct rpm_regulator_data rpm_pm8921_regulators[] = {
{ "s1", QCOM_RPM_PM8921_SMPS1, &pm8921_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8921_SMPS2, &pm8921_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8921_SMPS3, &pm8921_smps },
{ "s4", QCOM_RPM_PM8921_SMPS4, &pm8921_smps, "vdd_s4" },
{ "s7", QCOM_RPM_PM8921_SMPS7, &pm8921_smps, "vdd_s7" },
{ "s8", QCOM_RPM_PM8921_SMPS8, &pm8921_smps, "vdd_s8" },
{ "l1", QCOM_RPM_PM8921_LDO1, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l2", QCOM_RPM_PM8921_LDO2, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l3", QCOM_RPM_PM8921_LDO3, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l4", QCOM_RPM_PM8921_LDO4, &pm8921_pldo, "vdd_l4_l14" },
{ "l5", QCOM_RPM_PM8921_LDO5, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l6", QCOM_RPM_PM8921_LDO6, &pm8921_pldo, "vdd_l6_l7" },
{ "l7", QCOM_RPM_PM8921_LDO7, &pm8921_pldo, "vdd_l6_l7" },
{ "l8", QCOM_RPM_PM8921_LDO8, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l9", QCOM_RPM_PM8921_LDO9, &pm8921_pldo, "vdd_l9_l11" },
{ "l10", QCOM_RPM_PM8921_LDO10, &pm8921_pldo, "vdd_l10_l22" },
{ "l11", QCOM_RPM_PM8921_LDO11, &pm8921_pldo, "vdd_l9_l11" },
{ "l12", QCOM_RPM_PM8921_LDO12, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l14", QCOM_RPM_PM8921_LDO14, &pm8921_pldo, "vdd_l4_l14" },
{ "l15", QCOM_RPM_PM8921_LDO15, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l16", QCOM_RPM_PM8921_LDO16, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l17", QCOM_RPM_PM8921_LDO17, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l18", QCOM_RPM_PM8921_LDO18, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l21", QCOM_RPM_PM8921_LDO21, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "l22", QCOM_RPM_PM8921_LDO22, &pm8921_pldo, "vdd_l10_l22" },
{ "l23", QCOM_RPM_PM8921_LDO23, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "l24", QCOM_RPM_PM8921_LDO24, &pm8921_nldo1200, "vdd_l24" },
{ "l25", QCOM_RPM_PM8921_LDO25, &pm8921_nldo1200, "vdd_l25" },
{ "l26", QCOM_RPM_PM8921_LDO26, &pm8921_nldo1200, "vdd_l26" },
{ "l27", QCOM_RPM_PM8921_LDO27, &pm8921_nldo1200, "vdd_l27" },
{ "l28", QCOM_RPM_PM8921_LDO28, &pm8921_nldo1200, "vdd_l28" },
{ "l29", QCOM_RPM_PM8921_LDO29, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "lvs1", QCOM_RPM_PM8921_LVS1, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs2", QCOM_RPM_PM8921_LVS2, &pm8921_switch, "vin_lvs2" },
{ "lvs3", QCOM_RPM_PM8921_LVS3, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs4", QCOM_RPM_PM8921_LVS4, &pm8921_switch, "vin_lvs4_5_7" },
{ "lvs5", QCOM_RPM_PM8921_LVS5, &pm8921_switch, "vin_lvs4_5_7" },
{ "lvs6", QCOM_RPM_PM8921_LVS6, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs7", QCOM_RPM_PM8921_LVS7, &pm8921_switch, "vin_lvs4_5_7" },
{ "usb-switch", QCOM_RPM_USB_OTG_SWITCH, &pm8921_switch, "vin_5vs" },
{ "hdmi-switch", QCOM_RPM_HDMI_SWITCH, &pm8921_switch, "vin_5vs" },
{ "ncp", QCOM_RPM_PM8921_NCP, &pm8921_ncp, "vdd_ncp" },
{ }
};
static const struct rpm_regulator_data rpm_smb208_regulators[] = {
{ "s1a", QCOM_RPM_SMB208_S1a, &smb208_smps, "vin_s1a" },
{ "s1b", QCOM_RPM_SMB208_S1b, &smb208_smps, "vin_s1b" },
{ "s2a", QCOM_RPM_SMB208_S2a, &smb208_smps, "vin_s2a" },
{ "s2b", QCOM_RPM_SMB208_S2b, &smb208_smps, "vin_s2b" },
{ }
};
static const struct of_device_id rpm_of_match[] = {
{ .compatible = "qcom,rpm-pm8018-regulators",
.data = &rpm_pm8018_regulators },
{ .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators },
{ .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators },
{ .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators },
{ .compatible = "qcom,rpm-smb208-regulators", .data = &rpm_smb208_regulators },
{ }
};
MODULE_DEVICE_TABLE(of, rpm_of_match);
static int rpm_reg_probe(struct platform_device *pdev)
{
const struct rpm_regulator_data *reg;
const struct of_device_id *match;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct qcom_rpm_reg *vreg;
struct qcom_rpm *rpm;
rpm = dev_get_drvdata(pdev->dev.parent);
if (!rpm) {
dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
return -ENODEV;
}
match = of_match_device(rpm_of_match, &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "failed to match device\n");
return -ENODEV;
}
for (reg = match->data; reg->name; reg++) {
vreg = devm_kmemdup(&pdev->dev, reg->template, sizeof(*vreg), GFP_KERNEL);
if (!vreg)
return -ENOMEM;
mutex_init(&vreg->lock);
vreg->dev = &pdev->dev;
vreg->resource = reg->resource;
vreg->rpm = rpm;
vreg->desc.id = -1;
vreg->desc.owner = THIS_MODULE;
vreg->desc.type = REGULATOR_VOLTAGE;
vreg->desc.name = reg->name;
vreg->desc.supply_name = reg->supply;
vreg->desc.of_match = reg->name;
vreg->desc.of_parse_cb = rpm_reg_of_parse;
config.dev = &pdev->dev;
config.driver_data = vreg;
rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n", reg->name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver rpm_reg_driver = {
.probe = rpm_reg_probe,
.driver = {
.name = "qcom_rpm_reg",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(rpm_of_match),
},
};
static int __init rpm_reg_init(void)
{
return platform_driver_register(&rpm_reg_driver);
}
subsys_initcall(rpm_reg_init);
static void __exit rpm_reg_exit(void)
{
platform_driver_unregister(&rpm_reg_driver);
}
module_exit(rpm_reg_exit)
MODULE_DESCRIPTION("Qualcomm RPM regulator driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/qcom_rpm-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2022 Richtek Technology Corp.
*
* Author: ChiYuan Huang <[email protected]>
*
*/
#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#define RT6190_REG_VID 0x00
#define RT6190_REG_OUTV 0x01
#define RT6190_REG_OUTC 0x03
#define RT6190_REG_SET1 0x0D
#define RT6190_REG_SET2 0x0E
#define RT6190_REG_SET4 0x10
#define RT6190_REG_RATIO 0x11
#define RT6190_REG_OUT_VOLT_L 0x12
#define RT6190_REG_TEMP_H 0x1B
#define RT6190_REG_STAT1 0x1C
#define RT6190_REG_ALERT1 0x1E
#define RT6190_REG_ALERT2 0x1F
#define RT6190_REG_MASK2 0x21
#define RT6190_REG_OCPEN 0x28
#define RT6190_REG_SET5 0x29
#define RT6190_REG_VBUSC_ADC 0x32
#define RT6190_REG_BUSC_VOLT_L 0x33
#define RT6190_REG_BUSC_VOLT_H 0x34
#define RT6190_REG_STAT3 0x37
#define RT6190_REG_ALERT3 0x38
#define RT6190_REG_MASK3 0x39
#define RT6190_ENPWM_MASK BIT(7)
#define RT6190_ENDCHG_MASK BIT(4)
#define RT6190_ALERT_OTPEVT BIT(6)
#define RT6190_ALERT_UVPEVT BIT(5)
#define RT6190_ALERT_OVPEVT BIT(4)
#define RT6190_ENGCP_MASK BIT(1)
#define RT6190_FCCM_MASK BIT(7)
#define RICHTEK_VID 0x82
#define RT6190_OUT_MIN_UV 3000000
#define RT6190_OUT_MAX_UV 32000000
#define RT6190_OUT_STEP_UV 20000
#define RT6190_OUT_N_VOLT (RT6190_OUT_MAX_UV / RT6190_OUT_STEP_UV + 1)
#define RT6190_OUTV_MINSEL 150
#define RT6190_OUT_MIN_UA 306000
#define RT6190_OUT_MAX_UA 12114000
#define RT6190_OUT_STEP_UA 24000
#define RT6190_OUTC_MINSEL 19
#define RT6190_EN_TIME_US 500
#define RT6190_PSM_MODE 0
#define RT6190_FCCM_MODE 1
struct rt6190_data {
struct device *dev;
struct regmap *regmap;
struct gpio_desc *enable_gpio;
unsigned int cached_alert_evt;
};
static int rt6190_out_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct regmap *regmap = rdev_get_regmap(rdev);
__le16 le_sel = cpu_to_le16(selector);
return regmap_raw_write(regmap, RT6190_REG_OUTV, &le_sel,
sizeof(le_sel));
}
static int rt6190_out_get_voltage_sel(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
__le16 le_sel;
int ret;
ret = regmap_raw_read(regmap, RT6190_REG_OUTV, &le_sel, sizeof(le_sel));
return ret ?: le16_to_cpu(le_sel);
}
static int rt6190_out_enable(struct regulator_dev *rdev)
{
struct rt6190_data *data = rdev_get_drvdata(rdev);
struct regmap *regmap = rdev_get_regmap(rdev);
u8 out_cfg[4];
int ret;
pm_runtime_get_sync(data->dev);
/*
* From off to on, vout config will restore to IC default.
* Read vout configs before enable, and restore them after enable
*/
ret = regmap_raw_read(regmap, RT6190_REG_OUTV, out_cfg,
sizeof(out_cfg));
if (ret)
return ret;
ret = regulator_enable_regmap(rdev);
if (ret)
return ret;
ret = regmap_raw_write(regmap, RT6190_REG_OUTV, out_cfg,
sizeof(out_cfg));
if (ret)
return ret;
return regmap_update_bits(regmap, RT6190_REG_SET5, RT6190_ENGCP_MASK,
RT6190_ENGCP_MASK);
}
static int rt6190_out_disable(struct regulator_dev *rdev)
{
struct rt6190_data *data = rdev_get_drvdata(rdev);
struct regmap *regmap = rdev_get_regmap(rdev);
int ret;
ret = regmap_update_bits(regmap, RT6190_REG_SET5, RT6190_ENGCP_MASK, 0);
if (ret)
return ret;
ret = regulator_disable_regmap(rdev);
if (ret)
return ret;
/* cleared cached alert event */
data->cached_alert_evt = 0;
pm_runtime_put(data->dev);
return 0;
}
static int rt6190_out_set_current_limit(struct regulator_dev *rdev, int min_uA,
int max_uA)
{
struct regmap *regmap = rdev_get_regmap(rdev);
int csel, clim;
__le16 le_csel;
if (min_uA < RT6190_OUT_MIN_UA || max_uA > RT6190_OUT_MAX_UA)
return -EINVAL;
csel = DIV_ROUND_UP(min_uA - RT6190_OUT_MIN_UA, RT6190_OUT_STEP_UA);
clim = RT6190_OUT_MIN_UA + RT6190_OUT_STEP_UA * csel;
if (clim > max_uA)
return -EINVAL;
csel += RT6190_OUTC_MINSEL;
le_csel = cpu_to_le16(csel);
return regmap_raw_write(regmap, RT6190_REG_OUTC, &le_csel,
sizeof(le_csel));
}
static int rt6190_out_get_current_limit(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
__le16 le_csel;
int csel, ret;
ret = regmap_raw_read(regmap, RT6190_REG_OUTC, &le_csel,
sizeof(le_csel));
if (ret)
return ret;
csel = le16_to_cpu(le_csel);
csel -= RT6190_OUTC_MINSEL;
return RT6190_OUT_MIN_UA + RT6190_OUT_STEP_UA * csel;
}
static int rt6190_out_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = RT6190_FCCM_MASK;
break;
case REGULATOR_MODE_NORMAL:
val = 0;
break;
default:
return -EINVAL;
}
return regmap_update_bits(regmap, RT6190_REG_SET1, RT6190_FCCM_MASK,
val);
}
static unsigned int rt6190_out_get_mode(struct regulator_dev *rdev)
{
struct regmap *regmap = rdev_get_regmap(rdev);
unsigned int config;
int ret;
ret = regmap_read(regmap, RT6190_REG_SET1, &config);
if (ret)
return REGULATOR_MODE_INVALID;
if (config & RT6190_FCCM_MASK)
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static int rt6190_out_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
struct rt6190_data *data = rdev_get_drvdata(rdev);
unsigned int state, rpt_flags = 0;
int ret;
ret = regmap_read(data->regmap, RT6190_REG_STAT1, &state);
if (ret)
return ret;
state |= data->cached_alert_evt;
if (state & RT6190_ALERT_OTPEVT)
rpt_flags |= REGULATOR_ERROR_OVER_TEMP;
if (state & RT6190_ALERT_UVPEVT)
rpt_flags |= REGULATOR_ERROR_UNDER_VOLTAGE;
if (state & RT6190_ALERT_OVPEVT)
rpt_flags |= REGULATOR_ERROR_REGULATION_OUT;
*flags = rpt_flags;
return 0;
}
static unsigned int rt6190_out_of_map_mode(unsigned int mode)
{
switch (mode) {
case RT6190_PSM_MODE:
return REGULATOR_MODE_NORMAL;
case RT6190_FCCM_MODE:
return REGULATOR_MODE_FAST;
default:
return REGULATOR_MODE_INVALID;
}
}
static const struct regulator_ops rt6190_regulator_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = rt6190_out_set_voltage_sel,
.get_voltage_sel = rt6190_out_get_voltage_sel,
.enable = rt6190_out_enable,
.disable = rt6190_out_disable,
.is_enabled = regulator_is_enabled_regmap,
.set_current_limit = rt6190_out_set_current_limit,
.get_current_limit = rt6190_out_get_current_limit,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_mode = rt6190_out_set_mode,
.get_mode = rt6190_out_get_mode,
.get_error_flags = rt6190_out_get_error_flags,
};
static const struct regulator_desc rt6190_regulator_desc = {
.name = "rt6190-regulator",
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.ops = &rt6190_regulator_ops,
.min_uV = RT6190_OUT_MIN_UV,
.uV_step = RT6190_OUT_STEP_UV,
.n_voltages = RT6190_OUT_N_VOLT,
.linear_min_sel = RT6190_OUTV_MINSEL,
.enable_reg = RT6190_REG_SET2,
.enable_mask = RT6190_ENPWM_MASK,
.active_discharge_reg = RT6190_REG_SET2,
.active_discharge_mask = RT6190_ENDCHG_MASK,
.active_discharge_on = RT6190_ENDCHG_MASK,
.of_map_mode = rt6190_out_of_map_mode,
};
static bool rt6190_is_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case RT6190_REG_OUT_VOLT_L ... RT6190_REG_ALERT2:
case RT6190_REG_BUSC_VOLT_L ... RT6190_REG_BUSC_VOLT_H:
case RT6190_REG_STAT3 ... RT6190_REG_ALERT3:
return true;
default:
return false;
}
}
static const struct regmap_config rt6190_regmap_config = {
.name = "rt6190",
.cache_type = REGCACHE_FLAT,
.reg_bits = 8,
.val_bits = 8,
.max_register = RT6190_REG_MASK3,
.num_reg_defaults_raw = RT6190_REG_MASK3 + 1,
.volatile_reg = rt6190_is_volatile_reg,
};
static irqreturn_t rt6190_irq_handler(int irq, void *devid)
{
struct regulator_dev *rdev = devid;
struct rt6190_data *data = rdev_get_drvdata(rdev);
unsigned int alert;
int ret;
ret = regmap_read(data->regmap, RT6190_REG_ALERT1, &alert);
if (ret)
return IRQ_NONE;
/* Write clear alert events */
ret = regmap_write(data->regmap, RT6190_REG_ALERT1, alert);
if (ret)
return IRQ_NONE;
data->cached_alert_evt |= alert;
if (alert & RT6190_ALERT_OTPEVT)
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_OVER_TEMP, NULL);
if (alert & RT6190_ALERT_UVPEVT)
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_UNDER_VOLTAGE, NULL);
if (alert & RT6190_ALERT_OVPEVT)
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_REGULATION_OUT, NULL);
return IRQ_HANDLED;
}
static int rt6190_init_registers(struct regmap *regmap)
{
int ret;
/* Enable_ADC = 1 */
ret = regmap_write(regmap, RT6190_REG_SET4, 0x82);
if (ret)
return ret;
/* Config default VOUT ratio to be higher */
ret = regmap_write(regmap, RT6190_REG_RATIO, 0x20);
/* Mask unused alert */
ret = regmap_write(regmap, RT6190_REG_MASK2, 0);
if (ret)
return ret;
/* OCP config */
ret = regmap_write(regmap, RT6190_REG_OCPEN, 0);
if (ret)
return ret;
/* Enable VBUSC ADC */
return regmap_write(regmap, RT6190_REG_VBUSC_ADC, 0x02);
}
static int rt6190_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct rt6190_data *data;
struct gpio_desc *enable_gpio;
struct regmap *regmap;
struct regulator_dev *rdev;
struct regulator_config cfg = {};
unsigned int vid;
int ret;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(enable_gpio))
return dev_err_probe(dev, PTR_ERR(enable_gpio), "Failed to get 'enable' gpio\n");
else if (enable_gpio)
usleep_range(RT6190_EN_TIME_US, RT6190_EN_TIME_US * 2);
regmap = devm_regmap_init_i2c(i2c, &rt6190_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(dev, PTR_ERR(regmap), "Failed to init regmap\n");
data->dev = dev;
data->enable_gpio = enable_gpio;
data->regmap = regmap;
i2c_set_clientdata(i2c, data);
ret = regmap_read(regmap, RT6190_REG_VID, &vid);
if (ret)
return dev_err_probe(dev, ret, "Failed to read VID\n");
if (vid != RICHTEK_VID)
return dev_err_probe(dev, -ENODEV, "Incorrect VID 0x%02x\n", vid);
ret = rt6190_init_registers(regmap);
if (ret)
return dev_err_probe(dev, ret, "Failed to init registers\n");
pm_runtime_set_active(dev);
ret = devm_pm_runtime_enable(dev);
if (ret)
return dev_err_probe(dev, ret, "Failed to set pm_runtime enable\n");
cfg.dev = dev;
cfg.of_node = dev->of_node;
cfg.driver_data = data;
cfg.init_data = of_get_regulator_init_data(dev, dev->of_node,
&rt6190_regulator_desc);
rdev = devm_regulator_register(dev, &rt6190_regulator_desc, &cfg);
if (IS_ERR(rdev))
return dev_err_probe(dev, PTR_ERR(rdev), "Failed to register regulator\n");
if (i2c->irq) {
ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
rt6190_irq_handler,
IRQF_ONESHOT, dev_name(dev),
rdev);
if (ret)
return dev_err_probe(dev, ret, "Failed to register interrupt\n");
}
return 0;
}
static int rt6190_runtime_suspend(struct device *dev)
{
struct rt6190_data *data = dev_get_drvdata(dev);
struct regmap *regmap = data->regmap;
if (!data->enable_gpio)
return 0;
regcache_cache_only(regmap, true);
regcache_mark_dirty(regmap);
gpiod_set_value(data->enable_gpio, 0);
return 0;
}
static int rt6190_runtime_resume(struct device *dev)
{
struct rt6190_data *data = dev_get_drvdata(dev);
struct regmap *regmap = data->regmap;
if (!data->enable_gpio)
return 0;
gpiod_set_value(data->enable_gpio, 1);
usleep_range(RT6190_EN_TIME_US, RT6190_EN_TIME_US * 2);
regcache_cache_only(regmap, false);
return regcache_sync(regmap);
}
static const struct dev_pm_ops __maybe_unused rt6190_dev_pm = {
RUNTIME_PM_OPS(rt6190_runtime_suspend, rt6190_runtime_resume, NULL)
};
static const struct of_device_id rt6190_of_dev_table[] = {
{ .compatible = "richtek,rt6190" },
{}
};
MODULE_DEVICE_TABLE(of, rt6190_of_dev_table);
static struct i2c_driver rt6190_driver = {
.driver = {
.name = "rt6190",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = rt6190_of_dev_table,
.pm = pm_ptr(&rt6190_dev_pm),
},
.probe = rt6190_probe,
};
module_i2c_driver(rt6190_driver);
MODULE_DESCRIPTION("Richtek RT6190 regulator driver");
MODULE_AUTHOR("ChiYuan Huang <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/rt6190-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// arizona-micsupp.c -- Microphone supply for Arizona devices
//
// Copyright 2012 Wolfson Microelectronics PLC.
//
// Author: Mark Brown <[email protected]>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/soc.h>
#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/pdata.h>
#include <linux/mfd/arizona/registers.h>
#include <linux/mfd/madera/core.h>
#include <linux/mfd/madera/pdata.h>
#include <linux/mfd/madera/registers.h>
#include <linux/regulator/arizona-micsupp.h>
struct arizona_micsupp {
struct regulator_dev *regulator;
struct regmap *regmap;
struct snd_soc_dapm_context **dapm;
const struct regulator_desc *desc;
struct device *dev;
struct regulator_consumer_supply supply;
struct regulator_init_data init_data;
struct work_struct check_cp_work;
};
static void arizona_micsupp_check_cp(struct work_struct *work)
{
struct arizona_micsupp *micsupp =
container_of(work, struct arizona_micsupp, check_cp_work);
struct snd_soc_dapm_context *dapm = *micsupp->dapm;
struct snd_soc_component *component;
const struct regulator_desc *desc = micsupp->desc;
unsigned int val;
int ret;
ret = regmap_read(micsupp->regmap, desc->enable_reg, &val);
if (ret != 0) {
dev_err(micsupp->dev,
"Failed to read CP state: %d\n", ret);
return;
}
if (dapm) {
component = snd_soc_dapm_to_component(dapm);
if ((val & (desc->enable_mask | desc->bypass_mask)) ==
desc->enable_mask)
snd_soc_component_force_enable_pin(component,
"MICSUPP");
else
snd_soc_component_disable_pin(component, "MICSUPP");
snd_soc_dapm_sync(dapm);
}
}
static int arizona_micsupp_enable(struct regulator_dev *rdev)
{
struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
int ret;
ret = regulator_enable_regmap(rdev);
if (ret == 0)
schedule_work(&micsupp->check_cp_work);
return ret;
}
static int arizona_micsupp_disable(struct regulator_dev *rdev)
{
struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
int ret;
ret = regulator_disable_regmap(rdev);
if (ret == 0)
schedule_work(&micsupp->check_cp_work);
return ret;
}
static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
{
struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
int ret;
ret = regulator_set_bypass_regmap(rdev, ena);
if (ret == 0)
schedule_work(&micsupp->check_cp_work);
return ret;
}
static const struct regulator_ops arizona_micsupp_ops = {
.enable = arizona_micsupp_enable,
.disable = arizona_micsupp_disable,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_bypass = regulator_get_bypass_regmap,
.set_bypass = arizona_micsupp_set_bypass,
};
static const struct linear_range arizona_micsupp_ranges[] = {
REGULATOR_LINEAR_RANGE(1700000, 0, 0x1e, 50000),
REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0),
};
static const struct regulator_desc arizona_micsupp = {
.name = "MICVDD",
.supply_name = "CPVDD",
.type = REGULATOR_VOLTAGE,
.n_voltages = 32,
.ops = &arizona_micsupp_ops,
.vsel_reg = ARIZONA_LDO2_CONTROL_1,
.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
.enable_mask = ARIZONA_CPMIC_ENA,
.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
.bypass_mask = ARIZONA_CPMIC_BYPASS,
.linear_ranges = arizona_micsupp_ranges,
.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ranges),
.enable_time = 3000,
.owner = THIS_MODULE,
};
static const struct linear_range arizona_micsupp_ext_ranges[] = {
REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000),
REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
};
static const struct regulator_desc arizona_micsupp_ext = {
.name = "MICVDD",
.supply_name = "CPVDD",
.type = REGULATOR_VOLTAGE,
.n_voltages = 40,
.ops = &arizona_micsupp_ops,
.vsel_reg = ARIZONA_LDO2_CONTROL_1,
.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
.enable_mask = ARIZONA_CPMIC_ENA,
.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
.bypass_mask = ARIZONA_CPMIC_BYPASS,
.linear_ranges = arizona_micsupp_ext_ranges,
.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
.enable_time = 3000,
.owner = THIS_MODULE,
};
static const struct regulator_init_data arizona_micsupp_default = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS |
REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_BYPASS,
.min_uV = 1700000,
.max_uV = 3300000,
},
.num_consumer_supplies = 1,
};
static const struct regulator_init_data arizona_micsupp_ext_default = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS |
REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_BYPASS,
.min_uV = 900000,
.max_uV = 3300000,
},
.num_consumer_supplies = 1,
};
static const struct regulator_desc madera_micsupp = {
.name = "MICVDD",
.supply_name = "CPVDD1",
.type = REGULATOR_VOLTAGE,
.n_voltages = 40,
.ops = &arizona_micsupp_ops,
.vsel_reg = MADERA_LDO2_CONTROL_1,
.vsel_mask = MADERA_LDO2_VSEL_MASK,
.enable_reg = MADERA_MIC_CHARGE_PUMP_1,
.enable_mask = MADERA_CPMIC_ENA,
.bypass_reg = MADERA_MIC_CHARGE_PUMP_1,
.bypass_mask = MADERA_CPMIC_BYPASS,
.linear_ranges = arizona_micsupp_ext_ranges,
.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
.enable_time = 3000,
.owner = THIS_MODULE,
};
static int arizona_micsupp_of_get_pdata(struct arizona_micsupp_pdata *pdata,
struct regulator_config *config,
const struct regulator_desc *desc)
{
struct arizona_micsupp *micsupp = config->driver_data;
struct device_node *np;
struct regulator_init_data *init_data;
np = of_get_child_by_name(config->dev->of_node, "micvdd");
if (np) {
config->of_node = np;
init_data = of_get_regulator_init_data(config->dev, np, desc);
if (init_data) {
init_data->consumer_supplies = &micsupp->supply;
init_data->num_consumer_supplies = 1;
pdata->init_data = init_data;
}
}
return 0;
}
static int arizona_micsupp_common_init(struct platform_device *pdev,
struct arizona_micsupp *micsupp,
const struct regulator_desc *desc,
struct arizona_micsupp_pdata *pdata)
{
struct regulator_config config = { };
int ret;
INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);
micsupp->init_data.consumer_supplies = &micsupp->supply;
micsupp->supply.dev_name = dev_name(micsupp->dev);
micsupp->desc = desc;
config.dev = micsupp->dev;
config.driver_data = micsupp;
config.regmap = micsupp->regmap;
if (IS_ENABLED(CONFIG_OF)) {
if (!dev_get_platdata(micsupp->dev)) {
ret = arizona_micsupp_of_get_pdata(pdata, &config,
desc);
if (ret < 0)
return ret;
}
}
if (pdata->init_data)
config.init_data = pdata->init_data;
else
config.init_data = &micsupp->init_data;
/* Default to regulated mode */
regmap_update_bits(micsupp->regmap, desc->enable_reg, desc->bypass_mask, 0);
micsupp->regulator = devm_regulator_register(&pdev->dev,
desc,
&config);
of_node_put(config.of_node);
if (IS_ERR(micsupp->regulator)) {
ret = PTR_ERR(micsupp->regulator);
dev_err(micsupp->dev, "Failed to register mic supply: %d\n",
ret);
return ret;
}
platform_set_drvdata(pdev, micsupp);
return 0;
}
static int arizona_micsupp_probe(struct platform_device *pdev)
{
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
const struct regulator_desc *desc;
struct arizona_micsupp *micsupp;
micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
if (!micsupp)
return -ENOMEM;
micsupp->regmap = arizona->regmap;
micsupp->dapm = &arizona->dapm;
micsupp->dev = arizona->dev;
micsupp->supply.supply = "MICVDD";
/*
* Since the chip usually supplies itself we provide some
* default init_data for it. This will be overridden with
* platform data if provided.
*/
switch (arizona->type) {
case WM5110:
case WM8280:
desc = &arizona_micsupp_ext;
micsupp->init_data = arizona_micsupp_ext_default;
break;
default:
desc = &arizona_micsupp;
micsupp->init_data = arizona_micsupp_default;
break;
}
return arizona_micsupp_common_init(pdev, micsupp, desc,
&arizona->pdata.micvdd);
}
static int madera_micsupp_probe(struct platform_device *pdev)
{
struct madera *madera = dev_get_drvdata(pdev->dev.parent);
struct arizona_micsupp *micsupp;
micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
if (!micsupp)
return -ENOMEM;
micsupp->regmap = madera->regmap;
micsupp->dapm = &madera->dapm;
micsupp->dev = madera->dev;
micsupp->init_data = arizona_micsupp_ext_default;
micsupp->supply.supply = "MICVDD";
return arizona_micsupp_common_init(pdev, micsupp, &madera_micsupp,
&madera->pdata.micvdd);
}
static struct platform_driver arizona_micsupp_driver = {
.probe = arizona_micsupp_probe,
.driver = {
.name = "arizona-micsupp",
.probe_type = PROBE_FORCE_SYNCHRONOUS,
},
};
static struct platform_driver madera_micsupp_driver = {
.probe = madera_micsupp_probe,
.driver = {
.name = "madera-micsupp",
.probe_type = PROBE_FORCE_SYNCHRONOUS,
},
};
static struct platform_driver * const arizona_micsupp_drivers[] = {
&arizona_micsupp_driver,
&madera_micsupp_driver,
};
static int __init arizona_micsupp_init(void)
{
return platform_register_drivers(arizona_micsupp_drivers,
ARRAY_SIZE(arizona_micsupp_drivers));
}
module_init(arizona_micsupp_init);
static void __exit arizona_micsupp_exit(void)
{
platform_unregister_drivers(arizona_micsupp_drivers,
ARRAY_SIZE(arizona_micsupp_drivers));
}
module_exit(arizona_micsupp_exit);
/* Module information */
MODULE_AUTHOR("Mark Brown <[email protected]>");
MODULE_DESCRIPTION("Arizona microphone supply driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:arizona-micsupp");
MODULE_ALIAS("platform:madera-micsupp");
| linux-master | drivers/regulator/arizona-micsupp.c |
// SPDX-License-Identifier: GPL-2.0+
#include <linux/bitops.h>
#include <linux/bitfield.h>
#include <linux/util_macros.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mod_devicetable.h>
/* Register */
#define RTQ2208_REG_GLOBAL_INT1 0x12
#define RTQ2208_REG_FLT_RECORDBUCK_CB 0x18
#define RTQ2208_REG_GLOBAL_INT1_MASK 0x1D
#define RTQ2208_REG_FLT_MASKBUCK_CB 0x1F
#define RTQ2208_REG_BUCK_C_CFG0 0x32
#define RTQ2208_REG_BUCK_B_CFG0 0x42
#define RTQ2208_REG_BUCK_A_CFG0 0x52
#define RTQ2208_REG_BUCK_D_CFG0 0x62
#define RTQ2208_REG_BUCK_G_CFG0 0x72
#define RTQ2208_REG_BUCK_F_CFG0 0x82
#define RTQ2208_REG_BUCK_E_CFG0 0x92
#define RTQ2208_REG_BUCK_H_CFG0 0xA2
#define RTQ2208_REG_LDO1_CFG 0xB1
#define RTQ2208_REG_LDO2_CFG 0xC1
/* Mask */
#define RTQ2208_BUCK_NR_MTP_SEL_MASK GENMASK(7, 0)
#define RTQ2208_BUCK_EN_NR_MTP_SEL0_MASK BIT(0)
#define RTQ2208_BUCK_EN_NR_MTP_SEL1_MASK BIT(1)
#define RTQ2208_BUCK_RSPUP_MASK GENMASK(6, 4)
#define RTQ2208_BUCK_RSPDN_MASK GENMASK(2, 0)
#define RTQ2208_BUCK_NRMODE_MASK BIT(5)
#define RTQ2208_BUCK_STRMODE_MASK BIT(5)
#define RTQ2208_BUCK_EN_STR_MASK BIT(0)
#define RTQ2208_LDO_EN_STR_MASK BIT(7)
#define RTQ2208_EN_DIS_MASK BIT(0)
#define RTQ2208_BUCK_RAMP_SEL_MASK GENMASK(2, 0)
#define RTQ2208_HD_INT_MASK BIT(0)
/* Size */
#define RTQ2208_VOUT_MAXNUM 256
#define RTQ2208_BUCK_NUM_IRQ_REGS 5
#define RTQ2208_STS_NUM_IRQ_REGS 2
/* Value */
#define RTQ2208_RAMP_VALUE_MIN_uV 500
#define RTQ2208_RAMP_VALUE_MAX_uV 64000
#define RTQ2208_BUCK_MASK(uv_irq, ov_irq) (1 << ((uv_irq) % 8) | 1 << ((ov_irq) % 8))
enum {
RTQ2208_BUCK_B = 0,
RTQ2208_BUCK_C,
RTQ2208_BUCK_D,
RTQ2208_BUCK_A,
RTQ2208_BUCK_F,
RTQ2208_BUCK_G,
RTQ2208_BUCK_H,
RTQ2208_BUCK_E,
RTQ2208_LDO2,
RTQ2208_LDO1,
RTQ2208_LDO_MAX,
};
enum {
RTQ2208_AUTO_MODE = 0,
RTQ2208_FCCM,
};
struct rtq2208_regulator_desc {
struct regulator_desc desc;
unsigned int mtp_sel_reg;
unsigned int mtp_sel_mask;
unsigned int mode_reg;
unsigned int mode_mask;
unsigned int suspend_config_reg;
unsigned int suspend_enable_mask;
unsigned int suspend_mode_mask;
};
struct rtq2208_rdev_map {
struct regulator_dev *rdev[RTQ2208_LDO_MAX];
struct regmap *regmap;
struct device *dev;
};
/* set Normal Auto/FCCM mode */
static int rtq2208_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
const struct rtq2208_regulator_desc *rdesc =
(const struct rtq2208_regulator_desc *)rdev->desc;
unsigned int val, shift;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = RTQ2208_AUTO_MODE;
break;
case REGULATOR_MODE_FAST:
val = RTQ2208_FCCM;
break;
default:
return -EINVAL;
}
shift = ffs(rdesc->mode_mask) - 1;
return regmap_update_bits(rdev->regmap, rdesc->mode_reg,
rdesc->mode_mask, val << shift);
}
static unsigned int rtq2208_get_mode(struct regulator_dev *rdev)
{
const struct rtq2208_regulator_desc *rdesc =
(const struct rtq2208_regulator_desc *)rdev->desc;
unsigned int mode_val;
int ret;
ret = regmap_read(rdev->regmap, rdesc->mode_reg, &mode_val);
if (ret)
return REGULATOR_MODE_INVALID;
return (mode_val & rdesc->mode_mask) ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
}
static int rtq2208_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
const struct regulator_desc *desc = rdev->desc;
unsigned int sel = 0, val;
ramp_delay = max(ramp_delay, RTQ2208_RAMP_VALUE_MIN_uV);
ramp_delay = min(ramp_delay, RTQ2208_RAMP_VALUE_MAX_uV);
ramp_delay /= RTQ2208_RAMP_VALUE_MIN_uV;
/*
* fls(ramp_delay) - 1: doing LSB shift, let it starts from 0
*
* RTQ2208_BUCK_RAMP_SEL_MASK - sel: doing descending order shifting.
* Because the relation of seleltion and value is like that
*
* seletion: value
* 000: 64mv
* 001: 32mv
* ...
* 111: 0.5mv
*
* For example, if I would like to select 64mv, the fls(ramp_delay) - 1 will be 0b111,
* and I need to use 0b111 - sel to do the shifting
*/
sel = fls(ramp_delay) - 1;
sel = RTQ2208_BUCK_RAMP_SEL_MASK - sel;
val = FIELD_PREP(RTQ2208_BUCK_RSPUP_MASK, sel) | FIELD_PREP(RTQ2208_BUCK_RSPDN_MASK, sel);
return regmap_update_bits(rdev->regmap, desc->ramp_reg,
RTQ2208_BUCK_RSPUP_MASK | RTQ2208_BUCK_RSPDN_MASK, val);
}
static int rtq2208_set_suspend_enable(struct regulator_dev *rdev)
{
const struct rtq2208_regulator_desc *rdesc =
(const struct rtq2208_regulator_desc *)rdev->desc;
return regmap_set_bits(rdev->regmap, rdesc->suspend_config_reg, rdesc->suspend_enable_mask);
}
static int rtq2208_set_suspend_disable(struct regulator_dev *rdev)
{
const struct rtq2208_regulator_desc *rdesc =
(const struct rtq2208_regulator_desc *)rdev->desc;
return regmap_update_bits(rdev->regmap, rdesc->suspend_config_reg, rdesc->suspend_enable_mask, 0);
}
static int rtq2208_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode)
{
const struct rtq2208_regulator_desc *rdesc =
(const struct rtq2208_regulator_desc *)rdev->desc;
unsigned int val, shift;
switch (mode) {
case REGULATOR_MODE_NORMAL:
val = RTQ2208_AUTO_MODE;
break;
case REGULATOR_MODE_FAST:
val = RTQ2208_FCCM;
break;
default:
return -EINVAL;
}
shift = ffs(rdesc->suspend_mode_mask) - 1;
return regmap_update_bits(rdev->regmap, rdesc->suspend_config_reg,
rdesc->suspend_mode_mask, val << shift);
}
static const struct regulator_ops rtq2208_regulator_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_mode = rtq2208_set_mode,
.get_mode = rtq2208_get_mode,
.set_ramp_delay = rtq2208_set_ramp_delay,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_suspend_enable = rtq2208_set_suspend_enable,
.set_suspend_disable = rtq2208_set_suspend_disable,
.set_suspend_mode = rtq2208_set_suspend_mode,
};
static const struct regulator_ops rtq2208_regulator_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
.set_suspend_enable = rtq2208_set_suspend_enable,
.set_suspend_disable = rtq2208_set_suspend_disable,
};
static unsigned int rtq2208_of_map_mode(unsigned int mode)
{
switch (mode) {
case RTQ2208_AUTO_MODE:
return REGULATOR_MODE_NORMAL;
case RTQ2208_FCCM:
return REGULATOR_MODE_FAST;
default:
return REGULATOR_MODE_INVALID;
}
}
static int rtq2208_init_irq_mask(struct rtq2208_rdev_map *rdev_map, unsigned int *buck_masks)
{
unsigned char buck_clr_masks[5] = {0x33, 0x33, 0x33, 0x33, 0x33},
sts_clr_masks[2] = {0xE7, 0xF7}, sts_masks[2] = {0xE6, 0xF6};
int ret;
/* write clear all buck irq once */
ret = regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_FLT_RECORDBUCK_CB, buck_clr_masks, 5);
if (ret)
return dev_err_probe(rdev_map->dev, ret, "Failed to clr buck irqs\n");
/* write clear general irq once */
ret = regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_GLOBAL_INT1, sts_clr_masks, 2);
if (ret)
return dev_err_probe(rdev_map->dev, ret, "Failed to clr general irqs\n");
/* unmask buck ov/uv irq */
ret = regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_FLT_MASKBUCK_CB, buck_masks, 5);
if (ret)
return dev_err_probe(rdev_map->dev, ret, "Failed to unmask buck irqs\n");
/* unmask needed general irq */
return regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_GLOBAL_INT1_MASK, sts_masks, 2);
}
static irqreturn_t rtq2208_irq_handler(int irqno, void *devid)
{
unsigned char buck_flags[RTQ2208_BUCK_NUM_IRQ_REGS], sts_flags[RTQ2208_STS_NUM_IRQ_REGS];
int ret = 0, i, uv_bit, ov_bit;
struct rtq2208_rdev_map *rdev_map = devid;
struct regulator_dev *rdev;
if (!rdev_map)
return IRQ_NONE;
/* read irq event */
ret = regmap_bulk_read(rdev_map->regmap, RTQ2208_REG_FLT_RECORDBUCK_CB,
buck_flags, ARRAY_SIZE(buck_flags));
if (ret)
return IRQ_NONE;
ret = regmap_bulk_read(rdev_map->regmap, RTQ2208_REG_GLOBAL_INT1,
sts_flags, ARRAY_SIZE(sts_flags));
if (ret)
return IRQ_NONE;
/* clear irq event */
ret = regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_FLT_RECORDBUCK_CB,
buck_flags, ARRAY_SIZE(buck_flags));
if (ret)
return IRQ_NONE;
ret = regmap_bulk_write(rdev_map->regmap, RTQ2208_REG_GLOBAL_INT1,
sts_flags, ARRAY_SIZE(sts_flags));
if (ret)
return IRQ_NONE;
for (i = 0; i < RTQ2208_LDO_MAX; i++) {
if (!rdev_map->rdev[i])
continue;
rdev = rdev_map->rdev[i];
/* uv irq */
uv_bit = (i & 1) ? 4 : 0;
if (buck_flags[i >> 1] & (1 << uv_bit))
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_UNDER_VOLTAGE, NULL);
/* ov irq */
ov_bit = uv_bit + 1;
if (buck_flags[i >> 1] & (1 << ov_bit))
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_REGULATION_OUT, NULL);
/* hd irq */
if (sts_flags[1] & RTQ2208_HD_INT_MASK)
regulator_notifier_call_chain(rdev,
REGULATOR_EVENT_OVER_TEMP, NULL);
}
return IRQ_HANDLED;
}
#define RTQ2208_REGULATOR_INFO(_name, _base) \
{ \
.name = #_name, \
.base = _base, \
}
#define BUCK_RG_BASE(_id) RTQ2208_REG_BUCK_##_id##_CFG0
#define BUCK_RG_SHIFT(_base, _shift) (_base + _shift)
#define LDO_RG_BASE(_id) RTQ2208_REG_LDO##_id##_CFG
#define LDO_RG_SHIFT(_base, _shift) (_base + _shift)
#define VSEL_SHIFT(_sel) (_sel ? 3 : 1)
#define MTP_SEL_MASK(_sel) RTQ2208_BUCK_EN_NR_MTP_SEL##_sel##_MASK
static const struct linear_range rtq2208_vout_range[] = {
REGULATOR_LINEAR_RANGE(400000, 0, 180, 5000),
REGULATOR_LINEAR_RANGE(1310000, 181, 255, 10000),
};
static int rtq2208_of_get_fixed_voltage(struct device *dev,
struct of_regulator_match *rtq2208_ldo_match, int n_fixed)
{
struct device_node *np;
struct of_regulator_match *match;
struct rtq2208_regulator_desc *rdesc;
struct regulator_init_data *init_data;
int ret, i;
if (!dev->of_node)
return -ENODEV;
np = of_get_child_by_name(dev->of_node, "regulators");
if (!np)
np = dev->of_node;
ret = of_regulator_match(dev, np, rtq2208_ldo_match, n_fixed);
of_node_put(np);
if (ret < 0)
return ret;
for (i = 0; i < n_fixed; i++) {
match = rtq2208_ldo_match + i;
init_data = match->init_data;
rdesc = (struct rtq2208_regulator_desc *)match->driver_data;
if (!init_data || !rdesc)
continue;
if (init_data->constraints.min_uV == init_data->constraints.max_uV)
rdesc->desc.fixed_uV = init_data->constraints.min_uV;
}
return 0;
}
static void rtq2208_init_regulator_desc(struct rtq2208_regulator_desc *rdesc, int mtp_sel,
int idx, struct of_regulator_match *rtq2208_ldo_match, int *ldo_idx)
{
struct regulator_desc *desc;
static const struct {
char *name;
int base;
} regulator_info[] = {
RTQ2208_REGULATOR_INFO(buck-b, BUCK_RG_BASE(B)),
RTQ2208_REGULATOR_INFO(buck-c, BUCK_RG_BASE(C)),
RTQ2208_REGULATOR_INFO(buck-d, BUCK_RG_BASE(D)),
RTQ2208_REGULATOR_INFO(buck-a, BUCK_RG_BASE(A)),
RTQ2208_REGULATOR_INFO(buck-f, BUCK_RG_BASE(F)),
RTQ2208_REGULATOR_INFO(buck-g, BUCK_RG_BASE(G)),
RTQ2208_REGULATOR_INFO(buck-h, BUCK_RG_BASE(H)),
RTQ2208_REGULATOR_INFO(buck-e, BUCK_RG_BASE(E)),
RTQ2208_REGULATOR_INFO(ldo2, LDO_RG_BASE(2)),
RTQ2208_REGULATOR_INFO(ldo1, LDO_RG_BASE(1)),
}, *curr_info;
curr_info = regulator_info + idx;
desc = &rdesc->desc;
desc->name = curr_info->name;
desc->of_match = of_match_ptr(curr_info->name);
desc->regulators_node = of_match_ptr("regulators");
desc->id = idx;
desc->owner = THIS_MODULE;
desc->type = REGULATOR_VOLTAGE;
desc->enable_mask = mtp_sel ? MTP_SEL_MASK(1) : MTP_SEL_MASK(0);
desc->active_discharge_on = RTQ2208_EN_DIS_MASK;
desc->active_discharge_off = 0;
desc->active_discharge_mask = RTQ2208_EN_DIS_MASK;
rdesc->mode_mask = RTQ2208_BUCK_NRMODE_MASK;
if (idx >= RTQ2208_BUCK_B && idx <= RTQ2208_BUCK_E) {
/* init buck desc */
desc->enable_reg = BUCK_RG_SHIFT(curr_info->base, 2);
desc->ops = &rtq2208_regulator_buck_ops;
desc->vsel_reg = curr_info->base + VSEL_SHIFT(mtp_sel);
desc->vsel_mask = RTQ2208_BUCK_NR_MTP_SEL_MASK;
desc->n_voltages = RTQ2208_VOUT_MAXNUM;
desc->linear_ranges = rtq2208_vout_range;
desc->n_linear_ranges = ARRAY_SIZE(rtq2208_vout_range);
desc->ramp_reg = BUCK_RG_SHIFT(curr_info->base, 5);
desc->active_discharge_reg = curr_info->base;
desc->of_map_mode = rtq2208_of_map_mode;
rdesc->mode_reg = BUCK_RG_SHIFT(curr_info->base, 2);
rdesc->suspend_config_reg = BUCK_RG_SHIFT(curr_info->base, 4);
rdesc->suspend_enable_mask = RTQ2208_BUCK_EN_STR_MASK;
rdesc->suspend_mode_mask = RTQ2208_BUCK_STRMODE_MASK;
} else {
/* init ldo desc */
desc->enable_reg = curr_info->base;
desc->ops = &rtq2208_regulator_ldo_ops;
desc->n_voltages = 1;
desc->active_discharge_reg = LDO_RG_SHIFT(curr_info->base, 2);
rtq2208_ldo_match[*ldo_idx].name = desc->name;
rtq2208_ldo_match[*ldo_idx].driver_data = rdesc;
rtq2208_ldo_match[(*ldo_idx)++].desc = desc;
rdesc->suspend_config_reg = curr_info->base;
rdesc->suspend_enable_mask = RTQ2208_LDO_EN_STR_MASK;
}
}
static int rtq2208_parse_regulator_dt_data(int n_regulator, const unsigned int *regulator_idx_table,
struct rtq2208_regulator_desc *rdesc[RTQ2208_LDO_MAX], struct device *dev)
{
struct of_regulator_match rtq2208_ldo_match[2];
int mtp_sel, ret, i, idx, ldo_idx = 0;
/* get mtp_sel0 or mtp_sel1 */
mtp_sel = device_property_read_bool(dev, "richtek,mtp-sel-high");
for (i = 0; i < n_regulator; i++) {
idx = regulator_idx_table[i];
rdesc[i] = devm_kcalloc(dev, 1, sizeof(*rdesc[0]), GFP_KERNEL);
if (!rdesc[i])
return -ENOMEM;
rtq2208_init_regulator_desc(rdesc[i], mtp_sel, idx, rtq2208_ldo_match, &ldo_idx);
}
/* init ldo fixed_uV */
ret = rtq2208_of_get_fixed_voltage(dev, rtq2208_ldo_match, ldo_idx);
if (ret)
return dev_err_probe(dev, ret, "Failed to get ldo fixed_uV\n");
return 0;
}
/** different slave address corresponds different used bucks
* slave address 0x10: BUCK[BCA FGE]
* slave address 0x20: BUCK[BC FGHE]
* slave address 0x40: BUCK[C G]
*/
static int rtq2208_regulator_check(int slave_addr, int *num,
int *regulator_idx_table, unsigned int *buck_masks)
{
static bool rtq2208_used_table[3][RTQ2208_LDO_MAX] = {
/* BUCK[BCA FGE], LDO[12] */
{1, 1, 0, 1, 1, 1, 0, 1, 1, 1},
/* BUCK[BC FGHE], LDO[12]*/
{1, 1, 0, 0, 1, 1, 1, 1, 1, 1},
/* BUCK[C G], LDO[12] */
{0, 1, 0, 0, 0, 1, 0, 0, 1, 1},
};
int i, idx = ffs(slave_addr >> 4) - 1;
u8 mask;
for (i = 0; i < RTQ2208_LDO_MAX; i++) {
if (!rtq2208_used_table[idx][i])
continue;
regulator_idx_table[(*num)++] = i;
mask = RTQ2208_BUCK_MASK(4 * i, 4 * i + 1);
buck_masks[i >> 1] &= ~mask;
}
return 0;
}
static const struct regmap_config rtq2208_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xEF,
};
static int rtq2208_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct regmap *regmap;
struct rtq2208_regulator_desc *rdesc[RTQ2208_LDO_MAX];
struct regulator_dev *rdev;
struct regulator_config cfg;
struct rtq2208_rdev_map *rdev_map;
int i, ret = 0, idx, n_regulator = 0;
unsigned int regulator_idx_table[RTQ2208_LDO_MAX],
buck_masks[RTQ2208_BUCK_NUM_IRQ_REGS] = {0x33, 0x33, 0x33, 0x33, 0x33};
rdev_map = devm_kzalloc(dev, sizeof(struct rtq2208_rdev_map), GFP_KERNEL);
if (!rdev_map)
return -ENOMEM;
regmap = devm_regmap_init_i2c(i2c, &rtq2208_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(dev, PTR_ERR(regmap), "Failed to allocate regmap\n");
/* get needed regulator */
ret = rtq2208_regulator_check(i2c->addr, &n_regulator, regulator_idx_table, buck_masks);
if (ret)
return dev_err_probe(dev, ret, "Failed to check used regulators\n");
rdev_map->regmap = regmap;
rdev_map->dev = dev;
cfg.dev = dev;
/* init regulator desc */
ret = rtq2208_parse_regulator_dt_data(n_regulator, regulator_idx_table, rdesc, dev);
if (ret)
return ret;
for (i = 0; i < n_regulator; i++) {
idx = regulator_idx_table[i];
/* register regulator */
rdev = devm_regulator_register(dev, &rdesc[i]->desc, &cfg);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
rdev_map->rdev[idx] = rdev;
}
/* init interrupt mask */
ret = rtq2208_init_irq_mask(rdev_map, buck_masks);
if (ret)
return ret;
/* register interrupt */
return devm_request_threaded_irq(dev, i2c->irq, NULL, rtq2208_irq_handler,
IRQF_ONESHOT, dev_name(dev), rdev_map);
}
static const struct of_device_id rtq2208_device_tables[] = {
{ .compatible = "richtek,rtq2208" },
{}
};
MODULE_DEVICE_TABLE(of, rtq2208_device_tables);
static struct i2c_driver rtq2208_driver = {
.driver = {
.name = "rtq2208",
.of_match_table = rtq2208_device_tables,
},
.probe = rtq2208_probe,
};
module_i2c_driver(rtq2208_driver);
MODULE_AUTHOR("Alina Yu <[email protected]>");
MODULE_DESCRIPTION("Richtek RTQ2208 Regulator Driver");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/rtq2208-regulator.c |
// SPDX-License-Identifier: GPL-2.0+
//
// Regulator driver for ATC260x PMICs
//
// Copyright (C) 2019 Manivannan Sadhasivam <[email protected]>
// Copyright (C) 2020 Cristian Ciocaltea <[email protected]>
#include <linux/mfd/atc260x/core.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
struct atc260x_regulator_data {
int voltage_time_dcdc;
int voltage_time_ldo;
};
static const struct linear_range atc2603c_dcdc_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(1300000, 0, 13, 50000),
REGULATOR_LINEAR_RANGE(1950000, 14, 15, 100000),
};
static const struct linear_range atc2609a_dcdc_voltage_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0, 127, 6250),
REGULATOR_LINEAR_RANGE(1400000, 128, 232, 25000),
};
static const struct linear_range atc2609a_ldo_voltage_ranges0[] = {
REGULATOR_LINEAR_RANGE(700000, 0, 15, 100000),
REGULATOR_LINEAR_RANGE(2100000, 0, 12, 100000),
};
static const struct linear_range atc2609a_ldo_voltage_ranges1[] = {
REGULATOR_LINEAR_RANGE(850000, 0, 15, 100000),
REGULATOR_LINEAR_RANGE(2100000, 0, 11, 100000),
};
static const unsigned int atc260x_ldo_voltage_range_sel[] = {
0x0, 0x1,
};
static int atc260x_dcdc_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct atc260x_regulator_data *data = rdev_get_drvdata(rdev);
if (new_selector > old_selector)
return data->voltage_time_dcdc;
return 0;
}
static int atc260x_ldo_set_voltage_time_sel(struct regulator_dev *rdev,
unsigned int old_selector,
unsigned int new_selector)
{
struct atc260x_regulator_data *data = rdev_get_drvdata(rdev);
if (new_selector > old_selector)
return data->voltage_time_ldo;
return 0;
}
static const struct regulator_ops atc260x_dcdc_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_ldo_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_ldo_bypass_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
static const struct regulator_ops atc260x_ldo_bypass_discharge_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
.set_active_discharge = regulator_set_active_discharge_regmap,
};
static const struct regulator_ops atc260x_dcdc_range_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_ldo_range_pick_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_pickable_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
.set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_dcdc_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_dcdc_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_ldo_fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = atc260x_ldo_set_voltage_time_sel,
};
static const struct regulator_ops atc260x_no_ops = {
};
/*
* Note LDO8 is not documented in datasheet (v2.4), but supported
* in the vendor's driver implementation (xapp-le-kernel).
*/
enum atc2603c_reg_ids {
ATC2603C_ID_DCDC1,
ATC2603C_ID_DCDC2,
ATC2603C_ID_DCDC3,
ATC2603C_ID_LDO1,
ATC2603C_ID_LDO2,
ATC2603C_ID_LDO3,
ATC2603C_ID_LDO5,
ATC2603C_ID_LDO6,
ATC2603C_ID_LDO7,
ATC2603C_ID_LDO8,
ATC2603C_ID_LDO11,
ATC2603C_ID_LDO12,
ATC2603C_ID_SWITCHLDO1,
ATC2603C_ID_MAX,
};
#define atc2603c_reg_desc_dcdc(num, min, step, n_volt, vsel_h, vsel_l) { \
.name = "DCDC"#num, \
.supply_name = "dcdc"#num, \
.of_match = of_match_ptr("dcdc"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_DCDC##num, \
.ops = &atc260x_dcdc_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = n_volt, \
.vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
.enable_mask = BIT(15), \
.enable_time = 800, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_dcdc_range(num, vsel_h, vsel_l) { \
.name = "DCDC"#num, \
.supply_name = "dcdc"#num, \
.of_match = of_match_ptr("dcdc"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_DCDC##num, \
.ops = &atc260x_dcdc_range_ops, \
.type = REGULATOR_VOLTAGE, \
.n_voltages = 16, \
.linear_ranges = atc2603c_dcdc_voltage_ranges, \
.n_linear_ranges = ARRAY_SIZE(atc2603c_dcdc_voltage_ranges), \
.vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_reg = ATC2603C_PMU_DC##num##_CTL0, \
.enable_mask = BIT(15), \
.enable_time = 800, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_dcdc_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
.name = "DCDC"#num, \
.supply_name = "dcdc"#num, \
.of_match = of_match_ptr("dcdc"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_DCDC##num, \
.ops = &atc260x_dcdc_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = n_volt, \
.vsel_reg = ATC2603C_PMU_DC##num##_CTL0, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_time = 800, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_ldo(num, min, step, n_volt, vsel_h, vsel_l) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_LDO##num, \
.ops = &atc260x_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = n_volt, \
.vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_reg = ATC2603C_PMU_LDO##num##_CTL, \
.enable_mask = BIT(0), \
.enable_time = 2000, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_ldo_fixed(num, min, step, n_volt, vsel_h, vsel_l) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_LDO##num, \
.ops = &atc260x_ldo_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = n_volt, \
.vsel_reg = ATC2603C_PMU_LDO##num##_CTL, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_time = 2000, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_ldo_noops(num, vfixed) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_LDO##num, \
.ops = &atc260x_no_ops, \
.type = REGULATOR_VOLTAGE, \
.fixed_uV = vfixed, \
.n_voltages = 1, \
.owner = THIS_MODULE, \
}
#define atc2603c_reg_desc_ldo_switch(num, min, step, n_volt, vsel_h, vsel_l) { \
.name = "SWITCHLDO"#num, \
.supply_name = "switchldo"#num, \
.of_match = of_match_ptr("switchldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2603C_ID_SWITCHLDO##num, \
.ops = &atc260x_ldo_bypass_discharge_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = min, \
.uV_step = step, \
.n_voltages = n_volt, \
.vsel_reg = ATC2603C_PMU_SWITCH_CTL, \
.vsel_mask = GENMASK(vsel_h, vsel_l), \
.enable_reg = ATC2603C_PMU_SWITCH_CTL, \
.enable_mask = BIT(15), \
.enable_is_inverted = true, \
.enable_time = 2000, \
.bypass_reg = ATC2603C_PMU_SWITCH_CTL, \
.bypass_mask = BIT(5), \
.active_discharge_reg = ATC2603C_PMU_SWITCH_CTL, \
.active_discharge_mask = BIT(1), \
.active_discharge_on = BIT(1), \
.owner = THIS_MODULE, \
}
static const struct regulator_desc atc2603c_reg[] = {
atc2603c_reg_desc_dcdc_fixed(1, 700000, 25000, 29, 11, 7),
atc2603c_reg_desc_dcdc_range(2, 12, 8),
atc2603c_reg_desc_dcdc_fixed(3, 2600000, 100000, 8, 11, 9),
atc2603c_reg_desc_ldo_fixed(1, 2600000, 100000, 8, 15, 13),
atc2603c_reg_desc_ldo_fixed(2, 2600000, 100000, 8, 15, 13),
atc2603c_reg_desc_ldo_fixed(3, 1500000, 100000, 6, 15, 13),
atc2603c_reg_desc_ldo(5, 2600000, 100000, 8, 15, 13),
atc2603c_reg_desc_ldo_fixed(6, 700000, 25000, 29, 15, 11),
atc2603c_reg_desc_ldo(7, 1500000, 100000, 6, 15, 13),
atc2603c_reg_desc_ldo(8, 2300000, 100000, 11, 15, 12),
atc2603c_reg_desc_ldo_fixed(11, 2600000, 100000, 8, 15, 13),
atc2603c_reg_desc_ldo_noops(12, 1800000),
atc2603c_reg_desc_ldo_switch(1, 3000000, 100000, 4, 4, 3),
};
static const struct regulator_desc atc2603c_reg_dcdc2_ver_b =
atc2603c_reg_desc_dcdc(2, 1000000, 50000, 18, 12, 8);
enum atc2609a_reg_ids {
ATC2609A_ID_DCDC0,
ATC2609A_ID_DCDC1,
ATC2609A_ID_DCDC2,
ATC2609A_ID_DCDC3,
ATC2609A_ID_DCDC4,
ATC2609A_ID_LDO0,
ATC2609A_ID_LDO1,
ATC2609A_ID_LDO2,
ATC2609A_ID_LDO3,
ATC2609A_ID_LDO4,
ATC2609A_ID_LDO5,
ATC2609A_ID_LDO6,
ATC2609A_ID_LDO7,
ATC2609A_ID_LDO8,
ATC2609A_ID_LDO9,
ATC2609A_ID_MAX,
};
#define atc2609a_reg_desc_dcdc(num, en_bit) { \
.name = "DCDC"#num, \
.supply_name = "dcdc"#num, \
.of_match = of_match_ptr("dcdc"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_DCDC##num, \
.ops = &atc260x_dcdc_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = 600000, \
.uV_step = 6250, \
.n_voltages = 256, \
.vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
.vsel_mask = GENMASK(15, 8), \
.enable_reg = ATC2609A_PMU_DC_OSC, \
.enable_mask = BIT(en_bit), \
.enable_time = 800, \
.owner = THIS_MODULE, \
}
#define atc2609a_reg_desc_dcdc_range(num, en_bit) { \
.name = "DCDC"#num, \
.supply_name = "dcdc"#num, \
.of_match = of_match_ptr("dcdc"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_DCDC##num, \
.ops = &atc260x_dcdc_range_ops, \
.type = REGULATOR_VOLTAGE, \
.n_voltages = 233, \
.linear_ranges = atc2609a_dcdc_voltage_ranges, \
.n_linear_ranges = ARRAY_SIZE(atc2609a_dcdc_voltage_ranges), \
.vsel_reg = ATC2609A_PMU_DC##num##_CTL0, \
.vsel_mask = GENMASK(15, 8), \
.enable_reg = ATC2609A_PMU_DC_OSC, \
.enable_mask = BIT(en_bit), \
.enable_time = 800, \
.owner = THIS_MODULE, \
}
#define atc2609a_reg_desc_ldo(num) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_LDO##num, \
.ops = &atc260x_ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = 700000, \
.uV_step = 100000, \
.n_voltages = 16, \
.vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.vsel_mask = GENMASK(4, 1), \
.enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.enable_mask = BIT(0), \
.enable_time = 2000, \
.owner = THIS_MODULE, \
}
#define atc2609a_reg_desc_ldo_bypass(num) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_LDO##num, \
.ops = &atc260x_ldo_bypass_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = 2300000, \
.uV_step = 100000, \
.n_voltages = 12, \
.vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.vsel_mask = GENMASK(5, 2), \
.enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.enable_mask = BIT(0), \
.enable_time = 2000, \
.bypass_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.bypass_mask = BIT(1), \
.owner = THIS_MODULE, \
}
#define atc2609a_reg_desc_ldo_range_pick(num, n_range, n_volt) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_LDO##num, \
.ops = &atc260x_ldo_range_pick_ops, \
.type = REGULATOR_VOLTAGE, \
.linear_ranges = atc2609a_ldo_voltage_ranges##n_range, \
.n_linear_ranges = ARRAY_SIZE(atc2609a_ldo_voltage_ranges##n_range), \
.n_voltages = n_volt, \
.vsel_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.vsel_mask = GENMASK(4, 1), \
.vsel_range_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.vsel_range_mask = BIT(5), \
.linear_range_selectors_bitfield = atc260x_ldo_voltage_range_sel, \
.enable_reg = ATC2609A_PMU_LDO##num##_CTL0, \
.enable_mask = BIT(0), \
.enable_time = 2000, \
.owner = THIS_MODULE, \
}
#define atc2609a_reg_desc_ldo_fixed(num) { \
.name = "LDO"#num, \
.supply_name = "ldo"#num, \
.of_match = of_match_ptr("ldo"#num), \
.regulators_node = of_match_ptr("regulators"), \
.id = ATC2609A_ID_LDO##num, \
.ops = &atc260x_ldo_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.min_uV = 2600000, \
.uV_step = 100000, \
.n_voltages = 8, \
.vsel_reg = ATC2609A_PMU_LDO##num##_CTL, \
.vsel_mask = GENMASK(15, 13), \
.enable_time = 2000, \
.owner = THIS_MODULE, \
}
static const struct regulator_desc atc2609a_reg[] = {
atc2609a_reg_desc_dcdc(0, 4),
atc2609a_reg_desc_dcdc(1, 5),
atc2609a_reg_desc_dcdc(2, 6),
atc2609a_reg_desc_dcdc_range(3, 7),
atc2609a_reg_desc_dcdc(4, 8),
atc2609a_reg_desc_ldo_bypass(0),
atc2609a_reg_desc_ldo_bypass(1),
atc2609a_reg_desc_ldo_bypass(2),
atc2609a_reg_desc_ldo_range_pick(3, 0, 29),
atc2609a_reg_desc_ldo_range_pick(4, 0, 29),
atc2609a_reg_desc_ldo(5),
atc2609a_reg_desc_ldo_range_pick(6, 1, 28),
atc2609a_reg_desc_ldo_range_pick(7, 0, 29),
atc2609a_reg_desc_ldo_range_pick(8, 0, 29),
atc2609a_reg_desc_ldo_fixed(9),
};
static int atc260x_regulator_probe(struct platform_device *pdev)
{
struct atc260x *atc260x = dev_get_drvdata(pdev->dev.parent);
struct device *dev = atc260x->dev;
struct atc260x_regulator_data *atc260x_data;
struct regulator_config config = {};
struct regulator_dev *atc260x_rdev;
const struct regulator_desc *regulators;
bool atc2603c_ver_b = false;
int i, nregulators;
atc260x_data = devm_kzalloc(&pdev->dev, sizeof(*atc260x_data), GFP_KERNEL);
if (!atc260x_data)
return -ENOMEM;
atc260x_data->voltage_time_dcdc = 350;
atc260x_data->voltage_time_ldo = 800;
switch (atc260x->ic_type) {
case ATC2603C:
regulators = atc2603c_reg;
nregulators = ATC2603C_ID_MAX;
atc2603c_ver_b = atc260x->ic_ver == ATC260X_B;
break;
case ATC2609A:
atc260x_data->voltage_time_dcdc = 250;
regulators = atc2609a_reg;
nregulators = ATC2609A_ID_MAX;
break;
default:
dev_err(dev, "unsupported ATC260X ID %d\n", atc260x->ic_type);
return -EINVAL;
}
config.dev = dev;
config.regmap = atc260x->regmap;
config.driver_data = atc260x_data;
/* Instantiate the regulators */
for (i = 0; i < nregulators; i++) {
if (atc2603c_ver_b && regulators[i].id == ATC2603C_ID_DCDC2)
atc260x_rdev = devm_regulator_register(&pdev->dev,
&atc2603c_reg_dcdc2_ver_b,
&config);
else
atc260x_rdev = devm_regulator_register(&pdev->dev,
®ulators[i],
&config);
if (IS_ERR(atc260x_rdev)) {
dev_err(dev, "failed to register regulator: %d\n", i);
return PTR_ERR(atc260x_rdev);
}
}
return 0;
}
static struct platform_driver atc260x_regulator_driver = {
.probe = atc260x_regulator_probe,
.driver = {
.name = "atc260x-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
module_platform_driver(atc260x_regulator_driver);
MODULE_DESCRIPTION("Regulator driver for ATC260x PMICs");
MODULE_AUTHOR("Manivannan Sadhasivam <[email protected]>");
MODULE_AUTHOR("Cristian Ciocaltea <[email protected]>");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/atc260x-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* fixed.c
*
* Copyright 2008 Wolfson Microelectronics PLC.
*
* Author: Mark Brown <[email protected]>
*
* Copyright (c) 2009 Nokia Corporation
* Roger Quadros <[email protected]>
*
* This is useful for systems with mixed controllable and
* non-controllable regulators, as well as for allowing testing on
* systems with no controllable regulators.
*/
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/pm_opp.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/fixed.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/machine.h>
#include <linux/clk.h>
struct fixed_voltage_data {
struct regulator_desc desc;
struct regulator_dev *dev;
struct clk *enable_clock;
unsigned int enable_counter;
int performance_state;
};
struct fixed_dev_type {
bool has_enable_clock;
bool has_performance_state;
};
static int reg_clock_enable(struct regulator_dev *rdev)
{
struct fixed_voltage_data *priv = rdev_get_drvdata(rdev);
int ret = 0;
ret = clk_prepare_enable(priv->enable_clock);
if (ret)
return ret;
priv->enable_counter++;
return ret;
}
static int reg_clock_disable(struct regulator_dev *rdev)
{
struct fixed_voltage_data *priv = rdev_get_drvdata(rdev);
clk_disable_unprepare(priv->enable_clock);
priv->enable_counter--;
return 0;
}
static int reg_domain_enable(struct regulator_dev *rdev)
{
struct fixed_voltage_data *priv = rdev_get_drvdata(rdev);
struct device *dev = rdev->dev.parent;
int ret;
ret = dev_pm_genpd_set_performance_state(dev, priv->performance_state);
if (ret)
return ret;
priv->enable_counter++;
return ret;
}
static int reg_domain_disable(struct regulator_dev *rdev)
{
struct fixed_voltage_data *priv = rdev_get_drvdata(rdev);
struct device *dev = rdev->dev.parent;
int ret;
ret = dev_pm_genpd_set_performance_state(dev, 0);
if (ret)
return ret;
priv->enable_counter--;
return 0;
}
static int reg_is_enabled(struct regulator_dev *rdev)
{
struct fixed_voltage_data *priv = rdev_get_drvdata(rdev);
return priv->enable_counter > 0;
}
/**
* of_get_fixed_voltage_config - extract fixed_voltage_config structure info
* @dev: device requesting for fixed_voltage_config
* @desc: regulator description
*
* Populates fixed_voltage_config structure by extracting data from device
* tree node, returns a pointer to the populated structure of NULL if memory
* alloc fails.
*/
static struct fixed_voltage_config *
of_get_fixed_voltage_config(struct device *dev,
const struct regulator_desc *desc)
{
struct fixed_voltage_config *config;
struct device_node *np = dev->of_node;
struct regulator_init_data *init_data;
config = devm_kzalloc(dev, sizeof(struct fixed_voltage_config),
GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
config->init_data = of_get_regulator_init_data(dev, dev->of_node, desc);
if (!config->init_data)
return ERR_PTR(-EINVAL);
init_data = config->init_data;
init_data->constraints.apply_uV = 0;
config->supply_name = init_data->constraints.name;
if (init_data->constraints.min_uV == init_data->constraints.max_uV) {
config->microvolts = init_data->constraints.min_uV;
} else {
dev_err(dev,
"Fixed regulator specified with variable voltages\n");
return ERR_PTR(-EINVAL);
}
if (init_data->constraints.boot_on)
config->enabled_at_boot = true;
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
of_property_read_u32(np, "off-on-delay-us", &config->off_on_delay);
if (of_property_present(np, "vin-supply"))
config->input_supply = "vin";
return config;
}
static const struct regulator_ops fixed_voltage_ops = {
};
static const struct regulator_ops fixed_voltage_clkenabled_ops = {
.enable = reg_clock_enable,
.disable = reg_clock_disable,
.is_enabled = reg_is_enabled,
};
static const struct regulator_ops fixed_voltage_domain_ops = {
.enable = reg_domain_enable,
.disable = reg_domain_disable,
.is_enabled = reg_is_enabled,
};
static int reg_fixed_voltage_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct fixed_voltage_config *config;
struct fixed_voltage_data *drvdata;
const struct fixed_dev_type *drvtype = of_device_get_match_data(dev);
struct regulator_config cfg = { };
enum gpiod_flags gflags;
int ret;
drvdata = devm_kzalloc(&pdev->dev, sizeof(struct fixed_voltage_data),
GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
if (pdev->dev.of_node) {
config = of_get_fixed_voltage_config(&pdev->dev,
&drvdata->desc);
if (IS_ERR(config))
return PTR_ERR(config);
} else {
config = dev_get_platdata(&pdev->dev);
}
if (!config)
return -ENOMEM;
drvdata->desc.name = devm_kstrdup(&pdev->dev,
config->supply_name,
GFP_KERNEL);
if (drvdata->desc.name == NULL) {
dev_err(&pdev->dev, "Failed to allocate supply name\n");
return -ENOMEM;
}
drvdata->desc.type = REGULATOR_VOLTAGE;
drvdata->desc.owner = THIS_MODULE;
if (drvtype && drvtype->has_enable_clock) {
drvdata->desc.ops = &fixed_voltage_clkenabled_ops;
drvdata->enable_clock = devm_clk_get(dev, NULL);
if (IS_ERR(drvdata->enable_clock)) {
dev_err(dev, "Can't get enable-clock from devicetree\n");
return PTR_ERR(drvdata->enable_clock);
}
} else if (drvtype && drvtype->has_performance_state) {
drvdata->desc.ops = &fixed_voltage_domain_ops;
drvdata->performance_state = of_get_required_opp_performance_state(dev->of_node, 0);
if (drvdata->performance_state < 0) {
dev_err(dev, "Can't get performance state from devicetree\n");
return drvdata->performance_state;
}
} else {
drvdata->desc.ops = &fixed_voltage_ops;
}
drvdata->desc.enable_time = config->startup_delay;
drvdata->desc.off_on_delay = config->off_on_delay;
if (config->input_supply) {
drvdata->desc.supply_name = devm_kstrdup(&pdev->dev,
config->input_supply,
GFP_KERNEL);
if (!drvdata->desc.supply_name)
return -ENOMEM;
}
if (config->microvolts)
drvdata->desc.n_voltages = 1;
drvdata->desc.fixed_uV = config->microvolts;
/*
* The signal will be inverted by the GPIO core if flagged so in the
* descriptor.
*/
if (config->enabled_at_boot)
gflags = GPIOD_OUT_HIGH;
else
gflags = GPIOD_OUT_LOW;
/*
* Some fixed regulators share the enable line between two
* regulators which makes it necessary to get a handle on the
* same descriptor for two different consumers. This will get
* the GPIO descriptor, but only the first call will initialize
* it so any flags such as inversion or open drain will only
* be set up by the first caller and assumed identical on the
* next caller.
*
* FIXME: find a better way to deal with this.
*/
gflags |= GPIOD_FLAGS_BIT_NONEXCLUSIVE;
/*
* Do not use devm* here: the regulator core takes over the
* lifecycle management of the GPIO descriptor.
*/
cfg.ena_gpiod = gpiod_get_optional(&pdev->dev, NULL, gflags);
if (IS_ERR(cfg.ena_gpiod))
return dev_err_probe(&pdev->dev, PTR_ERR(cfg.ena_gpiod),
"can't get GPIO\n");
cfg.dev = &pdev->dev;
cfg.init_data = config->init_data;
cfg.driver_data = drvdata;
cfg.of_node = pdev->dev.of_node;
drvdata->dev = devm_regulator_register(&pdev->dev, &drvdata->desc,
&cfg);
if (IS_ERR(drvdata->dev)) {
ret = dev_err_probe(&pdev->dev, PTR_ERR(drvdata->dev),
"Failed to register regulator: %ld\n",
PTR_ERR(drvdata->dev));
return ret;
}
platform_set_drvdata(pdev, drvdata);
dev_dbg(&pdev->dev, "%s supplying %duV\n", drvdata->desc.name,
drvdata->desc.fixed_uV);
return 0;
}
#if defined(CONFIG_OF)
static const struct fixed_dev_type fixed_voltage_data = {
.has_enable_clock = false,
};
static const struct fixed_dev_type fixed_clkenable_data = {
.has_enable_clock = true,
};
static const struct fixed_dev_type fixed_domain_data = {
.has_performance_state = true,
};
static const struct of_device_id fixed_of_match[] = {
{
.compatible = "regulator-fixed",
.data = &fixed_voltage_data,
},
{
.compatible = "regulator-fixed-clock",
.data = &fixed_clkenable_data,
},
{
.compatible = "regulator-fixed-domain",
.data = &fixed_domain_data,
},
{
},
};
MODULE_DEVICE_TABLE(of, fixed_of_match);
#endif
static struct platform_driver regulator_fixed_voltage_driver = {
.probe = reg_fixed_voltage_probe,
.driver = {
.name = "reg-fixed-voltage",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(fixed_of_match),
},
};
static int __init regulator_fixed_voltage_init(void)
{
return platform_driver_register(®ulator_fixed_voltage_driver);
}
subsys_initcall(regulator_fixed_voltage_init);
static void __exit regulator_fixed_voltage_exit(void)
{
platform_driver_unregister(®ulator_fixed_voltage_driver);
}
module_exit(regulator_fixed_voltage_exit);
MODULE_AUTHOR("Mark Brown <[email protected]>");
MODULE_DESCRIPTION("Fixed voltage regulator");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:reg-fixed-voltage");
| linux-master | drivers/regulator/fixed.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* TI LP8788 MFD - buck regulator driver
*
* Copyright 2012 Texas Instruments
*
* Author: Milo(Woogyom) Kim <[email protected]>
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/lp8788.h>
#include <linux/gpio.h>
/* register address */
#define LP8788_EN_BUCK 0x0C
#define LP8788_BUCK_DVS_SEL 0x1D
#define LP8788_BUCK1_VOUT0 0x1E
#define LP8788_BUCK1_VOUT1 0x1F
#define LP8788_BUCK1_VOUT2 0x20
#define LP8788_BUCK1_VOUT3 0x21
#define LP8788_BUCK2_VOUT0 0x22
#define LP8788_BUCK2_VOUT1 0x23
#define LP8788_BUCK2_VOUT2 0x24
#define LP8788_BUCK2_VOUT3 0x25
#define LP8788_BUCK3_VOUT 0x26
#define LP8788_BUCK4_VOUT 0x27
#define LP8788_BUCK1_TIMESTEP 0x28
#define LP8788_BUCK_PWM 0x2D
/* mask/shift bits */
#define LP8788_EN_BUCK1_M BIT(0) /* Addr 0Ch */
#define LP8788_EN_BUCK2_M BIT(1)
#define LP8788_EN_BUCK3_M BIT(2)
#define LP8788_EN_BUCK4_M BIT(3)
#define LP8788_BUCK1_DVS_SEL_M 0x04 /* Addr 1Dh */
#define LP8788_BUCK1_DVS_M 0x03
#define LP8788_BUCK1_DVS_S 0
#define LP8788_BUCK2_DVS_SEL_M 0x40
#define LP8788_BUCK2_DVS_M 0x30
#define LP8788_BUCK2_DVS_S 4
#define LP8788_BUCK1_DVS_I2C BIT(2)
#define LP8788_BUCK2_DVS_I2C BIT(6)
#define LP8788_BUCK1_DVS_PIN (0 << 2)
#define LP8788_BUCK2_DVS_PIN (0 << 6)
#define LP8788_VOUT_M 0x1F /* Addr 1Eh ~ 27h */
#define LP8788_STARTUP_TIME_M 0xF8 /* Addr 28h ~ 2Bh */
#define LP8788_STARTUP_TIME_S 3
#define LP8788_FPWM_BUCK1_M BIT(0) /* Addr 2Dh */
#define LP8788_FPWM_BUCK1_S 0
#define LP8788_FPWM_BUCK2_M BIT(1)
#define LP8788_FPWM_BUCK2_S 1
#define LP8788_FPWM_BUCK3_M BIT(2)
#define LP8788_FPWM_BUCK3_S 2
#define LP8788_FPWM_BUCK4_M BIT(3)
#define LP8788_FPWM_BUCK4_S 3
#define INVALID_ADDR 0xFF
#define LP8788_FORCE_PWM 1
#define LP8788_AUTO_PWM 0
#define PIN_LOW 0
#define PIN_HIGH 1
#define ENABLE_TIME_USEC 32
#define BUCK_FPWM_MASK(x) (1 << (x))
#define BUCK_FPWM_SHIFT(x) (x)
enum lp8788_dvs_state {
DVS_LOW = GPIOF_OUT_INIT_LOW,
DVS_HIGH = GPIOF_OUT_INIT_HIGH,
};
enum lp8788_dvs_mode {
REGISTER,
EXTPIN,
};
enum lp8788_buck_id {
BUCK1,
BUCK2,
BUCK3,
BUCK4,
};
struct lp8788_buck {
struct lp8788 *lp;
struct regulator_dev *regulator;
void *dvs;
};
/* BUCK 1 ~ 4 voltage ranges */
static const struct linear_range buck_volt_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0, 0),
REGULATOR_LINEAR_RANGE(800000, 1, 25, 50000),
};
static void lp8788_buck1_set_dvs(struct lp8788_buck *buck)
{
struct lp8788_buck1_dvs *dvs = (struct lp8788_buck1_dvs *)buck->dvs;
enum lp8788_dvs_state pinstate;
if (!dvs)
return;
pinstate = dvs->vsel == DVS_SEL_V0 ? DVS_LOW : DVS_HIGH;
if (gpio_is_valid(dvs->gpio))
gpio_set_value(dvs->gpio, pinstate);
}
static void lp8788_buck2_set_dvs(struct lp8788_buck *buck)
{
struct lp8788_buck2_dvs *dvs = (struct lp8788_buck2_dvs *)buck->dvs;
enum lp8788_dvs_state pin1, pin2;
if (!dvs)
return;
switch (dvs->vsel) {
case DVS_SEL_V0:
pin1 = DVS_LOW;
pin2 = DVS_LOW;
break;
case DVS_SEL_V1:
pin1 = DVS_HIGH;
pin2 = DVS_LOW;
break;
case DVS_SEL_V2:
pin1 = DVS_LOW;
pin2 = DVS_HIGH;
break;
case DVS_SEL_V3:
pin1 = DVS_HIGH;
pin2 = DVS_HIGH;
break;
default:
return;
}
if (gpio_is_valid(dvs->gpio[0]))
gpio_set_value(dvs->gpio[0], pin1);
if (gpio_is_valid(dvs->gpio[1]))
gpio_set_value(dvs->gpio[1], pin2);
}
static void lp8788_set_dvs(struct lp8788_buck *buck, enum lp8788_buck_id id)
{
switch (id) {
case BUCK1:
lp8788_buck1_set_dvs(buck);
break;
case BUCK2:
lp8788_buck2_set_dvs(buck);
break;
default:
break;
}
}
static enum lp8788_dvs_mode
lp8788_get_buck_dvs_ctrl_mode(struct lp8788_buck *buck, enum lp8788_buck_id id)
{
u8 val, mask;
switch (id) {
case BUCK1:
mask = LP8788_BUCK1_DVS_SEL_M;
break;
case BUCK2:
mask = LP8788_BUCK2_DVS_SEL_M;
break;
default:
return REGISTER;
}
lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);
return val & mask ? REGISTER : EXTPIN;
}
static bool lp8788_is_valid_buck_addr(u8 addr)
{
switch (addr) {
case LP8788_BUCK1_VOUT0:
case LP8788_BUCK1_VOUT1:
case LP8788_BUCK1_VOUT2:
case LP8788_BUCK1_VOUT3:
case LP8788_BUCK2_VOUT0:
case LP8788_BUCK2_VOUT1:
case LP8788_BUCK2_VOUT2:
case LP8788_BUCK2_VOUT3:
return true;
default:
return false;
}
}
static u8 lp8788_select_buck_vout_addr(struct lp8788_buck *buck,
enum lp8788_buck_id id)
{
enum lp8788_dvs_mode mode = lp8788_get_buck_dvs_ctrl_mode(buck, id);
struct lp8788_buck1_dvs *b1_dvs;
struct lp8788_buck2_dvs *b2_dvs;
u8 val, idx, addr;
int pin1, pin2;
switch (id) {
case BUCK1:
if (mode == EXTPIN) {
b1_dvs = (struct lp8788_buck1_dvs *)buck->dvs;
if (!b1_dvs)
goto err;
idx = gpio_get_value(b1_dvs->gpio) ? 1 : 0;
} else {
lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);
idx = (val & LP8788_BUCK1_DVS_M) >> LP8788_BUCK1_DVS_S;
}
addr = LP8788_BUCK1_VOUT0 + idx;
break;
case BUCK2:
if (mode == EXTPIN) {
b2_dvs = (struct lp8788_buck2_dvs *)buck->dvs;
if (!b2_dvs)
goto err;
pin1 = gpio_get_value(b2_dvs->gpio[0]);
pin2 = gpio_get_value(b2_dvs->gpio[1]);
if (pin1 == PIN_LOW && pin2 == PIN_LOW)
idx = 0;
else if (pin1 == PIN_LOW && pin2 == PIN_HIGH)
idx = 2;
else if (pin1 == PIN_HIGH && pin2 == PIN_LOW)
idx = 1;
else
idx = 3;
} else {
lp8788_read_byte(buck->lp, LP8788_BUCK_DVS_SEL, &val);
idx = (val & LP8788_BUCK2_DVS_M) >> LP8788_BUCK2_DVS_S;
}
addr = LP8788_BUCK2_VOUT0 + idx;
break;
default:
goto err;
}
return addr;
err:
return INVALID_ADDR;
}
static int lp8788_buck12_set_voltage_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct lp8788_buck *buck = rdev_get_drvdata(rdev);
enum lp8788_buck_id id = rdev_get_id(rdev);
u8 addr;
if (buck->dvs)
lp8788_set_dvs(buck, id);
addr = lp8788_select_buck_vout_addr(buck, id);
if (!lp8788_is_valid_buck_addr(addr))
return -EINVAL;
return lp8788_update_bits(buck->lp, addr, LP8788_VOUT_M, selector);
}
static int lp8788_buck12_get_voltage_sel(struct regulator_dev *rdev)
{
struct lp8788_buck *buck = rdev_get_drvdata(rdev);
enum lp8788_buck_id id = rdev_get_id(rdev);
int ret;
u8 val, addr;
addr = lp8788_select_buck_vout_addr(buck, id);
if (!lp8788_is_valid_buck_addr(addr))
return -EINVAL;
ret = lp8788_read_byte(buck->lp, addr, &val);
if (ret)
return ret;
return val & LP8788_VOUT_M;
}
static int lp8788_buck_enable_time(struct regulator_dev *rdev)
{
struct lp8788_buck *buck = rdev_get_drvdata(rdev);
enum lp8788_buck_id id = rdev_get_id(rdev);
u8 val, addr = LP8788_BUCK1_TIMESTEP + id;
if (lp8788_read_byte(buck->lp, addr, &val))
return -EINVAL;
val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S;
return ENABLE_TIME_USEC * val;
}
static int lp8788_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct lp8788_buck *buck = rdev_get_drvdata(rdev);
enum lp8788_buck_id id = rdev_get_id(rdev);
u8 mask, val;
mask = BUCK_FPWM_MASK(id);
switch (mode) {
case REGULATOR_MODE_FAST:
val = LP8788_FORCE_PWM << BUCK_FPWM_SHIFT(id);
break;
case REGULATOR_MODE_NORMAL:
val = LP8788_AUTO_PWM << BUCK_FPWM_SHIFT(id);
break;
default:
return -EINVAL;
}
return lp8788_update_bits(buck->lp, LP8788_BUCK_PWM, mask, val);
}
static unsigned int lp8788_buck_get_mode(struct regulator_dev *rdev)
{
struct lp8788_buck *buck = rdev_get_drvdata(rdev);
enum lp8788_buck_id id = rdev_get_id(rdev);
u8 val;
int ret;
ret = lp8788_read_byte(buck->lp, LP8788_BUCK_PWM, &val);
if (ret)
return ret;
return val & BUCK_FPWM_MASK(id) ?
REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
}
static const struct regulator_ops lp8788_buck12_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = lp8788_buck12_set_voltage_sel,
.get_voltage_sel = lp8788_buck12_get_voltage_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.enable_time = lp8788_buck_enable_time,
.set_mode = lp8788_buck_set_mode,
.get_mode = lp8788_buck_get_mode,
};
static const struct regulator_ops lp8788_buck34_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.enable_time = lp8788_buck_enable_time,
.set_mode = lp8788_buck_set_mode,
.get_mode = lp8788_buck_get_mode,
};
static const struct regulator_desc lp8788_buck_desc[] = {
{
.name = "buck1",
.id = BUCK1,
.ops = &lp8788_buck12_ops,
.n_voltages = 26,
.linear_ranges = buck_volt_ranges,
.n_linear_ranges = ARRAY_SIZE(buck_volt_ranges),
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.enable_reg = LP8788_EN_BUCK,
.enable_mask = LP8788_EN_BUCK1_M,
},
{
.name = "buck2",
.id = BUCK2,
.ops = &lp8788_buck12_ops,
.n_voltages = 26,
.linear_ranges = buck_volt_ranges,
.n_linear_ranges = ARRAY_SIZE(buck_volt_ranges),
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.enable_reg = LP8788_EN_BUCK,
.enable_mask = LP8788_EN_BUCK2_M,
},
{
.name = "buck3",
.id = BUCK3,
.ops = &lp8788_buck34_ops,
.n_voltages = 26,
.linear_ranges = buck_volt_ranges,
.n_linear_ranges = ARRAY_SIZE(buck_volt_ranges),
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LP8788_BUCK3_VOUT,
.vsel_mask = LP8788_VOUT_M,
.enable_reg = LP8788_EN_BUCK,
.enable_mask = LP8788_EN_BUCK3_M,
},
{
.name = "buck4",
.id = BUCK4,
.ops = &lp8788_buck34_ops,
.n_voltages = 26,
.linear_ranges = buck_volt_ranges,
.n_linear_ranges = ARRAY_SIZE(buck_volt_ranges),
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.vsel_reg = LP8788_BUCK4_VOUT,
.vsel_mask = LP8788_VOUT_M,
.enable_reg = LP8788_EN_BUCK,
.enable_mask = LP8788_EN_BUCK4_M,
},
};
static int lp8788_dvs_gpio_request(struct platform_device *pdev,
struct lp8788_buck *buck,
enum lp8788_buck_id id)
{
struct lp8788_platform_data *pdata = buck->lp->pdata;
char *b1_name = "LP8788_B1_DVS";
char *b2_name[] = { "LP8788_B2_DVS1", "LP8788_B2_DVS2" };
int i, gpio, ret;
switch (id) {
case BUCK1:
gpio = pdata->buck1_dvs->gpio;
ret = devm_gpio_request_one(&pdev->dev, gpio, DVS_LOW,
b1_name);
if (ret)
return ret;
buck->dvs = pdata->buck1_dvs;
break;
case BUCK2:
for (i = 0; i < LP8788_NUM_BUCK2_DVS; i++) {
gpio = pdata->buck2_dvs->gpio[i];
ret = devm_gpio_request_one(&pdev->dev, gpio,
DVS_LOW, b2_name[i]);
if (ret)
return ret;
}
buck->dvs = pdata->buck2_dvs;
break;
default:
break;
}
return 0;
}
static int lp8788_init_dvs(struct platform_device *pdev,
struct lp8788_buck *buck, enum lp8788_buck_id id)
{
struct lp8788_platform_data *pdata = buck->lp->pdata;
u8 mask[] = { LP8788_BUCK1_DVS_SEL_M, LP8788_BUCK2_DVS_SEL_M };
u8 val[] = { LP8788_BUCK1_DVS_PIN, LP8788_BUCK2_DVS_PIN };
u8 default_dvs_mode[] = { LP8788_BUCK1_DVS_I2C, LP8788_BUCK2_DVS_I2C };
/* no dvs for buck3, 4 */
if (id > BUCK2)
return 0;
/* no dvs platform data, then dvs will be selected by I2C registers */
if (!pdata)
goto set_default_dvs_mode;
if ((id == BUCK1 && !pdata->buck1_dvs) ||
(id == BUCK2 && !pdata->buck2_dvs))
goto set_default_dvs_mode;
if (lp8788_dvs_gpio_request(pdev, buck, id))
goto set_default_dvs_mode;
return lp8788_update_bits(buck->lp, LP8788_BUCK_DVS_SEL, mask[id],
val[id]);
set_default_dvs_mode:
return lp8788_update_bits(buck->lp, LP8788_BUCK_DVS_SEL, mask[id],
default_dvs_mode[id]);
}
static int lp8788_buck_probe(struct platform_device *pdev)
{
struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
int id = pdev->id;
struct lp8788_buck *buck;
struct regulator_config cfg = { };
struct regulator_dev *rdev;
int ret;
if (id >= LP8788_NUM_BUCKS)
return -EINVAL;
buck = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_buck), GFP_KERNEL);
if (!buck)
return -ENOMEM;
buck->lp = lp;
ret = lp8788_init_dvs(pdev, buck, id);
if (ret)
return ret;
cfg.dev = pdev->dev.parent;
cfg.init_data = lp->pdata ? lp->pdata->buck_data[id] : NULL;
cfg.driver_data = buck;
cfg.regmap = lp->regmap;
rdev = devm_regulator_register(&pdev->dev, &lp8788_buck_desc[id], &cfg);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&pdev->dev, "BUCK%d regulator register err = %d\n",
id + 1, ret);
return ret;
}
buck->regulator = rdev;
platform_set_drvdata(pdev, buck);
return 0;
}
static struct platform_driver lp8788_buck_driver = {
.probe = lp8788_buck_probe,
.driver = {
.name = LP8788_DEV_BUCK,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
static int __init lp8788_buck_init(void)
{
return platform_driver_register(&lp8788_buck_driver);
}
subsys_initcall(lp8788_buck_init);
static void __exit lp8788_buck_exit(void)
{
platform_driver_unregister(&lp8788_buck_driver);
}
module_exit(lp8788_buck_exit);
MODULE_DESCRIPTION("TI LP8788 BUCK Driver");
MODULE_AUTHOR("Milo Kim");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:lp8788-buck");
| linux-master | drivers/regulator/lp8788-buck.c |
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Marek Vasut <[email protected]>
*
* Based on rpi_touchscreen.c by Eric Anholt <[email protected]>
*/
#include <linux/backlight.h>
#include <linux/err.h>
#include <linux/gpio/driver.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/* I2C registers of the Atmel microcontroller. */
#define REG_ID 0x80
#define REG_PORTA 0x81
#define REG_PORTB 0x82
#define REG_PORTC 0x83
#define REG_POWERON 0x85
#define REG_PWM 0x86
#define REG_ADDR_L 0x8c
#define REG_ADDR_H 0x8d
#define REG_WRITE_DATA_H 0x90
#define REG_WRITE_DATA_L 0x91
#define PA_LCD_DITHB BIT(0)
#define PA_LCD_MODE BIT(1)
#define PA_LCD_LR BIT(2)
#define PA_LCD_UD BIT(3)
#define PB_BRIDGE_PWRDNX_N BIT(0)
#define PB_LCD_VCC_N BIT(1)
#define PB_LCD_MAIN BIT(7)
#define PC_LED_EN BIT(0)
#define PC_RST_TP_N BIT(1)
#define PC_RST_LCD_N BIT(2)
#define PC_RST_BRIDGE_N BIT(3)
enum gpio_signals {
RST_BRIDGE_N, /* TC358762 bridge reset */
RST_TP_N, /* Touch controller reset */
NUM_GPIO
};
struct gpio_signal_mappings {
unsigned int reg;
unsigned int mask;
};
static const struct gpio_signal_mappings mappings[NUM_GPIO] = {
[RST_BRIDGE_N] = { REG_PORTC, PC_RST_BRIDGE_N | PC_RST_LCD_N },
[RST_TP_N] = { REG_PORTC, PC_RST_TP_N },
};
struct attiny_lcd {
/* lock to serialise overall accesses to the Atmel */
struct mutex lock;
struct regmap *regmap;
bool gpio_states[NUM_GPIO];
u8 port_states[3];
struct gpio_chip gc;
};
static const struct regmap_config attiny_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.disable_locking = 1,
.max_register = REG_WRITE_DATA_L,
.cache_type = REGCACHE_RBTREE,
};
static int attiny_set_port_state(struct attiny_lcd *state, int reg, u8 val)
{
state->port_states[reg - REG_PORTA] = val;
return regmap_write(state->regmap, reg, val);
};
static u8 attiny_get_port_state(struct attiny_lcd *state, int reg)
{
return state->port_states[reg - REG_PORTA];
};
static int attiny_lcd_power_enable(struct regulator_dev *rdev)
{
struct attiny_lcd *state = rdev_get_drvdata(rdev);
mutex_lock(&state->lock);
/* Ensure bridge, and tp stay in reset */
attiny_set_port_state(state, REG_PORTC, 0);
usleep_range(5000, 10000);
/* Default to the same orientation as the closed source
* firmware used for the panel. Runtime rotation
* configuration will be supported using VC4's plane
* orientation bits.
*/
attiny_set_port_state(state, REG_PORTA, PA_LCD_LR);
usleep_range(5000, 10000);
/* Main regulator on, and power to the panel (LCD_VCC_N) */
attiny_set_port_state(state, REG_PORTB, PB_LCD_MAIN);
usleep_range(5000, 10000);
/* Bring controllers out of reset */
attiny_set_port_state(state, REG_PORTC, PC_LED_EN);
msleep(80);
mutex_unlock(&state->lock);
return 0;
}
static int attiny_lcd_power_disable(struct regulator_dev *rdev)
{
struct attiny_lcd *state = rdev_get_drvdata(rdev);
mutex_lock(&state->lock);
regmap_write(rdev->regmap, REG_PWM, 0);
usleep_range(5000, 10000);
attiny_set_port_state(state, REG_PORTA, 0);
usleep_range(5000, 10000);
attiny_set_port_state(state, REG_PORTB, PB_LCD_VCC_N);
usleep_range(5000, 10000);
attiny_set_port_state(state, REG_PORTC, 0);
msleep(30);
mutex_unlock(&state->lock);
return 0;
}
static int attiny_lcd_power_is_enabled(struct regulator_dev *rdev)
{
struct attiny_lcd *state = rdev_get_drvdata(rdev);
unsigned int data;
int ret, i;
mutex_lock(&state->lock);
for (i = 0; i < 10; i++) {
ret = regmap_read(rdev->regmap, REG_PORTC, &data);
if (!ret)
break;
usleep_range(10000, 12000);
}
mutex_unlock(&state->lock);
if (ret < 0)
return ret;
return data & PC_RST_BRIDGE_N;
}
static const struct regulator_init_data attiny_regulator_default = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static const struct regulator_ops attiny_regulator_ops = {
.enable = attiny_lcd_power_enable,
.disable = attiny_lcd_power_disable,
.is_enabled = attiny_lcd_power_is_enabled,
};
static const struct regulator_desc attiny_regulator = {
.name = "tc358762-power",
.ops = &attiny_regulator_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
};
static int attiny_update_status(struct backlight_device *bl)
{
struct attiny_lcd *state = bl_get_data(bl);
struct regmap *regmap = state->regmap;
int brightness = backlight_get_brightness(bl);
int ret, i;
mutex_lock(&state->lock);
for (i = 0; i < 10; i++) {
ret = regmap_write(regmap, REG_PWM, brightness);
if (!ret)
break;
}
mutex_unlock(&state->lock);
return ret;
}
static const struct backlight_ops attiny_bl = {
.update_status = attiny_update_status,
};
static int attiny_gpio_get_direction(struct gpio_chip *gc, unsigned int off)
{
return GPIO_LINE_DIRECTION_OUT;
}
static void attiny_gpio_set(struct gpio_chip *gc, unsigned int off, int val)
{
struct attiny_lcd *state = gpiochip_get_data(gc);
u8 last_val;
if (off >= NUM_GPIO)
return;
mutex_lock(&state->lock);
last_val = attiny_get_port_state(state, mappings[off].reg);
if (val)
last_val |= mappings[off].mask;
else
last_val &= ~mappings[off].mask;
attiny_set_port_state(state, mappings[off].reg, last_val);
if (off == RST_BRIDGE_N && val) {
usleep_range(5000, 8000);
regmap_write(state->regmap, REG_ADDR_H, 0x04);
usleep_range(5000, 8000);
regmap_write(state->regmap, REG_ADDR_L, 0x7c);
usleep_range(5000, 8000);
regmap_write(state->regmap, REG_WRITE_DATA_H, 0x00);
usleep_range(5000, 8000);
regmap_write(state->regmap, REG_WRITE_DATA_L, 0x00);
msleep(100);
}
mutex_unlock(&state->lock);
}
static int attiny_i2c_read(struct i2c_client *client, u8 reg, unsigned int *buf)
{
struct i2c_msg msgs[1];
u8 addr_buf[1] = { reg };
u8 data_buf[1] = { 0, };
int ret;
/* Write register address */
msgs[0].addr = client->addr;
msgs[0].flags = 0;
msgs[0].len = ARRAY_SIZE(addr_buf);
msgs[0].buf = addr_buf;
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs))
return -EIO;
usleep_range(5000, 10000);
/* Read data from register */
msgs[0].addr = client->addr;
msgs[0].flags = I2C_M_RD;
msgs[0].len = 1;
msgs[0].buf = data_buf;
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret != ARRAY_SIZE(msgs))
return -EIO;
*buf = data_buf[0];
return 0;
}
/*
* I2C driver interface functions
*/
static int attiny_i2c_probe(struct i2c_client *i2c)
{
struct backlight_properties props = { };
struct regulator_config config = { };
struct backlight_device *bl;
struct regulator_dev *rdev;
struct attiny_lcd *state;
struct regmap *regmap;
unsigned int data;
int ret;
state = devm_kzalloc(&i2c->dev, sizeof(*state), GFP_KERNEL);
if (!state)
return -ENOMEM;
mutex_init(&state->lock);
i2c_set_clientdata(i2c, state);
regmap = devm_regmap_init_i2c(i2c, &attiny_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
goto error;
}
ret = attiny_i2c_read(i2c, REG_ID, &data);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to read REG_ID reg: %d\n", ret);
goto error;
}
switch (data) {
case 0xde: /* ver 1 */
case 0xc3: /* ver 2 */
break;
default:
dev_err(&i2c->dev, "Unknown Atmel firmware revision: 0x%02x\n", data);
ret = -ENODEV;
goto error;
}
regmap_write(regmap, REG_POWERON, 0);
msleep(30);
regmap_write(regmap, REG_PWM, 0);
config.dev = &i2c->dev;
config.regmap = regmap;
config.of_node = i2c->dev.of_node;
config.init_data = &attiny_regulator_default;
config.driver_data = state;
rdev = devm_regulator_register(&i2c->dev, &attiny_regulator, &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "Failed to register ATTINY regulator\n");
ret = PTR_ERR(rdev);
goto error;
}
props.type = BACKLIGHT_RAW;
props.max_brightness = 0xff;
state->regmap = regmap;
bl = devm_backlight_device_register(&i2c->dev, dev_name(&i2c->dev),
&i2c->dev, state, &attiny_bl,
&props);
if (IS_ERR(bl)) {
ret = PTR_ERR(bl);
goto error;
}
bl->props.brightness = 0xff;
state->gc.parent = &i2c->dev;
state->gc.label = i2c->name;
state->gc.owner = THIS_MODULE;
state->gc.base = -1;
state->gc.ngpio = NUM_GPIO;
state->gc.set = attiny_gpio_set;
state->gc.get_direction = attiny_gpio_get_direction;
state->gc.can_sleep = true;
ret = devm_gpiochip_add_data(&i2c->dev, &state->gc, state);
if (ret) {
dev_err(&i2c->dev, "Failed to create gpiochip: %d\n", ret);
goto error;
}
return 0;
error:
mutex_destroy(&state->lock);
return ret;
}
static void attiny_i2c_remove(struct i2c_client *client)
{
struct attiny_lcd *state = i2c_get_clientdata(client);
mutex_destroy(&state->lock);
}
static const struct of_device_id attiny_dt_ids[] = {
{ .compatible = "raspberrypi,7inch-touchscreen-panel-regulator" },
{},
};
MODULE_DEVICE_TABLE(of, attiny_dt_ids);
static struct i2c_driver attiny_regulator_driver = {
.driver = {
.name = "rpi_touchscreen_attiny",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = attiny_dt_ids,
},
.probe = attiny_i2c_probe,
.remove = attiny_i2c_remove,
};
module_i2c_driver(attiny_regulator_driver);
MODULE_AUTHOR("Marek Vasut <[email protected]>");
MODULE_DESCRIPTION("Regulator device driver for Raspberry Pi 7-inch touchscreen");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/rpi-panel-attiny-regulator.c |
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* isl9305 - Intersil ISL9305 DCDC regulator
*
* Copyright 2014 Linaro Ltd
*
* Author: Mark Brown <[email protected]>
*/
#include <linux/module.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/platform_data/isl9305.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>
/*
* Registers
*/
#define ISL9305_DCD1OUT 0x0
#define ISL9305_DCD2OUT 0x1
#define ISL9305_LDO1OUT 0x2
#define ISL9305_LDO2OUT 0x3
#define ISL9305_DCD_PARAMETER 0x4
#define ISL9305_SYSTEM_PARAMETER 0x5
#define ISL9305_DCD_SRCTL 0x6
#define ISL9305_MAX_REG ISL9305_DCD_SRCTL
/*
* DCD_PARAMETER
*/
#define ISL9305_DCD_PHASE 0x40
#define ISL9305_DCD2_ULTRA 0x20
#define ISL9305_DCD1_ULTRA 0x10
#define ISL9305_DCD2_BLD 0x08
#define ISL9305_DCD1_BLD 0x04
#define ISL9305_DCD2_MODE 0x02
#define ISL9305_DCD1_MODE 0x01
/*
* SYSTEM_PARAMETER
*/
#define ISL9305_I2C_EN 0x40
#define ISL9305_DCDPOR_MASK 0x30
#define ISL9305_LDO2_EN 0x08
#define ISL9305_LDO1_EN 0x04
#define ISL9305_DCD2_EN 0x02
#define ISL9305_DCD1_EN 0x01
/*
* DCD_SRCTL
*/
#define ISL9305_DCD2SR_MASK 0xc0
#define ISL9305_DCD1SR_MASK 0x07
static const struct regulator_ops isl9305_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.list_voltage = regulator_list_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_desc isl9305_regulators[] = {
[ISL9305_DCD1] = {
.name = "DCD1",
.of_match = of_match_ptr("dcd1"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x70,
.min_uV = 825000,
.uV_step = 25000,
.vsel_reg = ISL9305_DCD1OUT,
.vsel_mask = 0x7f,
.enable_reg = ISL9305_SYSTEM_PARAMETER,
.enable_mask = ISL9305_DCD1_EN,
.supply_name = "VINDCD1",
.ops = &isl9305_ops,
.owner = THIS_MODULE,
},
[ISL9305_DCD2] = {
.name = "DCD2",
.of_match = of_match_ptr("dcd2"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x70,
.min_uV = 825000,
.uV_step = 25000,
.vsel_reg = ISL9305_DCD2OUT,
.vsel_mask = 0x7f,
.enable_reg = ISL9305_SYSTEM_PARAMETER,
.enable_mask = ISL9305_DCD2_EN,
.supply_name = "VINDCD2",
.ops = &isl9305_ops,
.owner = THIS_MODULE,
},
[ISL9305_LDO1] = {
.name = "LDO1",
.of_match = of_match_ptr("ldo1"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x37,
.min_uV = 900000,
.uV_step = 50000,
.vsel_reg = ISL9305_LDO1OUT,
.vsel_mask = 0x3f,
.enable_reg = ISL9305_SYSTEM_PARAMETER,
.enable_mask = ISL9305_LDO1_EN,
.supply_name = "VINLDO1",
.ops = &isl9305_ops,
.owner = THIS_MODULE,
},
[ISL9305_LDO2] = {
.name = "LDO2",
.of_match = of_match_ptr("ldo2"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x37,
.min_uV = 900000,
.uV_step = 50000,
.vsel_reg = ISL9305_LDO2OUT,
.vsel_mask = 0x3f,
.enable_reg = ISL9305_SYSTEM_PARAMETER,
.enable_mask = ISL9305_LDO2_EN,
.supply_name = "VINLDO2",
.ops = &isl9305_ops,
.owner = THIS_MODULE,
},
};
static const struct regmap_config isl9305_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = ISL9305_MAX_REG,
.cache_type = REGCACHE_RBTREE,
};
static int isl9305_i2c_probe(struct i2c_client *i2c)
{
struct regulator_config config = { };
struct isl9305_pdata *pdata = i2c->dev.platform_data;
struct regulator_dev *rdev;
struct regmap *regmap;
int i, ret;
regmap = devm_regmap_init_i2c(i2c, &isl9305_regmap);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);
return ret;
}
config.dev = &i2c->dev;
for (i = 0; i < ARRAY_SIZE(isl9305_regulators); i++) {
if (pdata)
config.init_data = pdata->init_data[i];
else
config.init_data = NULL;
rdev = devm_regulator_register(&i2c->dev,
&isl9305_regulators[i],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&i2c->dev, "Failed to register %s: %d\n",
isl9305_regulators[i].name, ret);
return ret;
}
}
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id isl9305_dt_ids[] = {
{ .compatible = "isl,isl9305" }, /* for backward compat., don't use */
{ .compatible = "isil,isl9305" },
{ .compatible = "isl,isl9305h" }, /* for backward compat., don't use */
{ .compatible = "isil,isl9305h" },
{},
};
MODULE_DEVICE_TABLE(of, isl9305_dt_ids);
#endif
static const struct i2c_device_id isl9305_i2c_id[] = {
{ "isl9305", },
{ "isl9305h", },
{ }
};
MODULE_DEVICE_TABLE(i2c, isl9305_i2c_id);
static struct i2c_driver isl9305_regulator_driver = {
.driver = {
.name = "isl9305",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(isl9305_dt_ids),
},
.probe = isl9305_i2c_probe,
.id_table = isl9305_i2c_id,
};
module_i2c_driver(isl9305_regulator_driver);
MODULE_AUTHOR("Mark Brown");
MODULE_DESCRIPTION("Intersil ISL9305 DCDC regulator");
MODULE_LICENSE("GPL");
| linux-master | drivers/regulator/isl9305.c |
// SPDX-License-Identifier: GPL-2.0
/*
* Device driver for regulators in MAX5970 and MAX5978 IC
*
* Copyright (c) 2022 9elements GmbH
*
* Author: Patrick Rudolph <[email protected]>
*/
#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/platform_device.h>
#include <linux/mfd/max5970.h>
struct max5970_regulator {
int num_switches, mon_rng, irng, shunt_micro_ohms, lim_uA;
struct regmap *regmap;
};
enum max597x_regulator_id {
MAX597X_SW0,
MAX597X_SW1,
};
static int max597x_uvp_ovp_check_mode(struct regulator_dev *rdev, int severity)
{
int ret, reg;
/* Status1 register contains the soft strap values sampled at POR */
ret = regmap_read(rdev->regmap, MAX5970_REG_STATUS1, ®);
if (ret)
return ret;
/* Check soft straps match requested mode */
if (severity == REGULATOR_SEVERITY_PROT) {
if (STATUS1_PROT(reg) != STATUS1_PROT_SHUTDOWN)
return -EOPNOTSUPP;
return 0;
}
if (STATUS1_PROT(reg) == STATUS1_PROT_SHUTDOWN)
return -EOPNOTSUPP;
return 0;
}
static int max597x_set_vp(struct regulator_dev *rdev, int lim_uV, int severity,
bool enable, bool overvoltage)
{
int off_h, off_l, reg, ret;
struct max5970_regulator *data = rdev_get_drvdata(rdev);
int channel = rdev_get_id(rdev);
if (overvoltage) {
if (severity == REGULATOR_SEVERITY_WARN) {
off_h = MAX5970_REG_CH_OV_WARN_H(channel);
off_l = MAX5970_REG_CH_OV_WARN_L(channel);
} else {
off_h = MAX5970_REG_CH_OV_CRIT_H(channel);
off_l = MAX5970_REG_CH_OV_CRIT_L(channel);
}
} else {
if (severity == REGULATOR_SEVERITY_WARN) {
off_h = MAX5970_REG_CH_UV_WARN_H(channel);
off_l = MAX5970_REG_CH_UV_WARN_L(channel);
} else {
off_h = MAX5970_REG_CH_UV_CRIT_H(channel);
off_l = MAX5970_REG_CH_UV_CRIT_L(channel);
}
}
if (enable)
/* reg = ADC_MASK * (lim_uV / 1000000) / (data->mon_rng / 1000000) */
reg = ADC_MASK * lim_uV / data->mon_rng;
else
reg = 0;
ret = regmap_write(rdev->regmap, off_h, MAX5970_VAL2REG_H(reg));
if (ret)
return ret;
ret = regmap_write(rdev->regmap, off_l, MAX5970_VAL2REG_L(reg));
if (ret)
return ret;
return 0;
}
static int max597x_set_uvp(struct regulator_dev *rdev, int lim_uV, int severity,
bool enable)
{
int ret;
/*
* MAX5970 has enable control as a special value in limit reg. Can't
* set limit but keep feature disabled or enable W/O given limit.
*/
if ((lim_uV && !enable) || (!lim_uV && enable))
return -EINVAL;
ret = max597x_uvp_ovp_check_mode(rdev, severity);
if (ret)
return ret;
return max597x_set_vp(rdev, lim_uV, severity, enable, false);
}
static int max597x_set_ovp(struct regulator_dev *rdev, int lim_uV, int severity,
bool enable)
{
int ret;
/*
* MAX5970 has enable control as a special value in limit reg. Can't
* set limit but keep feature disabled or enable W/O given limit.
*/
if ((lim_uV && !enable) || (!lim_uV && enable))
return -EINVAL;
ret = max597x_uvp_ovp_check_mode(rdev, severity);
if (ret)
return ret;
return max597x_set_vp(rdev, lim_uV, severity, enable, true);
}
static int max597x_set_ocp(struct regulator_dev *rdev, int lim_uA,
int severity, bool enable)
{
int val, reg;
unsigned int vthst, vthfst;
struct max5970_regulator *data = rdev_get_drvdata(rdev);
int rdev_id = rdev_get_id(rdev);
/*
* MAX5970 doesn't has enable control for ocp.
* If limit is specified but enable is not set then hold the value in
* variable & later use it when ocp needs to be enabled.
*/
if (lim_uA != 0 && lim_uA != data->lim_uA)
data->lim_uA = lim_uA;
if (severity != REGULATOR_SEVERITY_PROT)
return -EINVAL;
if (enable) {
/* Calc Vtrip threshold in uV. */
vthst =
div_u64(mul_u32_u32(data->shunt_micro_ohms, data->lim_uA),
1000000);
/*
* As recommended in datasheed, add 20% margin to avoid
* spurious event & passive component tolerance.
*/
vthst = div_u64(mul_u32_u32(vthst, 120), 100);
/* Calc fast Vtrip threshold in uV */
vthfst = vthst * (MAX5970_FAST2SLOW_RATIO / 100);
if (vthfst > data->irng) {
dev_err(&rdev->dev, "Current limit out of range\n");
return -EINVAL;
}
/* Fast trip threshold to be programmed */
val = div_u64(mul_u32_u32(0xFF, vthfst), data->irng);
} else
/*
* Since there is no option to disable ocp, set limit to max
* value
*/
val = 0xFF;
reg = MAX5970_REG_DAC_FAST(rdev_id);
return regmap_write(rdev->regmap, reg, val);
}
static int max597x_get_status(struct regulator_dev *rdev)
{
int val, ret;
ret = regmap_read(rdev->regmap, MAX5970_REG_STATUS3, &val);
if (ret)
return ret;
if (val & MAX5970_STATUS3_ALERT)
return REGULATOR_STATUS_ERROR;
ret = regulator_is_enabled_regmap(rdev);
if (ret < 0)
return ret;
if (ret)
return REGULATOR_STATUS_ON;
return REGULATOR_STATUS_OFF;
}
static const struct regulator_ops max597x_switch_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = max597x_get_status,
.set_over_voltage_protection = max597x_set_ovp,
.set_under_voltage_protection = max597x_set_uvp,
.set_over_current_protection = max597x_set_ocp,
};
static int max597x_dt_parse(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *cfg)
{
struct max5970_regulator *data = cfg->driver_data;
int ret = 0;
ret =
of_property_read_u32(np, "shunt-resistor-micro-ohms",
&data->shunt_micro_ohms);
if (ret < 0)
dev_err(cfg->dev,
"property 'shunt-resistor-micro-ohms' not found, err %d\n",
ret);
return ret;
}
#define MAX597X_SWITCH(_ID, _ereg, _chan, _supply) { \
.name = #_ID, \
.of_match = of_match_ptr(#_ID), \
.ops = &max597x_switch_ops, \
.regulators_node = of_match_ptr("regulators"), \
.type = REGULATOR_VOLTAGE, \
.id = MAX597X_##_ID, \
.owner = THIS_MODULE, \
.supply_name = _supply, \
.enable_reg = _ereg, \
.enable_mask = CHXEN((_chan)), \
.of_parse_cb = max597x_dt_parse, \
}
static const struct regulator_desc regulators[] = {
MAX597X_SWITCH(SW0, MAX5970_REG_CHXEN, 0, "vss1"),
MAX597X_SWITCH(SW1, MAX5970_REG_CHXEN, 1, "vss2"),
};
static int max597x_regmap_read_clear(struct regmap *map, unsigned int reg,
unsigned int *val)
{
int ret;
ret = regmap_read(map, reg, val);
if (ret)
return ret;
if (*val)
return regmap_write(map, reg, *val);
return 0;
}
static int max597x_irq_handler(int irq, struct regulator_irq_data *rid,
unsigned long *dev_mask)
{
struct regulator_err_state *stat;
struct max5970_regulator *d = (struct max5970_regulator *)rid->data;
int val, ret, i;
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT0, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
*dev_mask = 0;
for (i = 0; i < d->num_switches; i++) {
stat = &rid->states[i];
stat->notifs = 0;
stat->errors = 0;
}
for (i = 0; i < d->num_switches; i++) {
stat = &rid->states[i];
if (val & UV_STATUS_CRIT(i)) {
*dev_mask |= 1 << i;
stat->notifs |= REGULATOR_EVENT_UNDER_VOLTAGE;
stat->errors |= REGULATOR_ERROR_UNDER_VOLTAGE;
} else if (val & UV_STATUS_WARN(i)) {
*dev_mask |= 1 << i;
stat->notifs |= REGULATOR_EVENT_UNDER_VOLTAGE_WARN;
stat->errors |= REGULATOR_ERROR_UNDER_VOLTAGE_WARN;
}
}
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT1, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
for (i = 0; i < d->num_switches; i++) {
stat = &rid->states[i];
if (val & OV_STATUS_CRIT(i)) {
*dev_mask |= 1 << i;
stat->notifs |= REGULATOR_EVENT_REGULATION_OUT;
stat->errors |= REGULATOR_ERROR_REGULATION_OUT;
} else if (val & OV_STATUS_WARN(i)) {
*dev_mask |= 1 << i;
stat->notifs |= REGULATOR_EVENT_OVER_VOLTAGE_WARN;
stat->errors |= REGULATOR_ERROR_OVER_VOLTAGE_WARN;
}
}
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT2, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
for (i = 0; i < d->num_switches; i++) {
stat = &rid->states[i];
if (val & OC_STATUS_WARN(i)) {
*dev_mask |= 1 << i;
stat->notifs |= REGULATOR_EVENT_OVER_CURRENT_WARN;
stat->errors |= REGULATOR_ERROR_OVER_CURRENT_WARN;
}
}
ret = regmap_read(d->regmap, MAX5970_REG_STATUS0, &val);
if (ret)
return REGULATOR_FAILED_RETRY;
for (i = 0; i < d->num_switches; i++) {
stat = &rid->states[i];
if ((val & MAX5970_CB_IFAULTF(i))
|| (val & MAX5970_CB_IFAULTS(i))) {
*dev_mask |= 1 << i;
stat->notifs |=
REGULATOR_EVENT_OVER_CURRENT |
REGULATOR_EVENT_DISABLE;
stat->errors |=
REGULATOR_ERROR_OVER_CURRENT | REGULATOR_ERROR_FAIL;
/* Clear the sub-IRQ status */
regulator_disable_regmap(stat->rdev);
}
}
return 0;
}
static int max597x_adc_range(struct regmap *regmap, const int ch,
u32 *irng, u32 *mon_rng)
{
unsigned int reg;
int ret;
/* Decode current ADC range */
ret = regmap_read(regmap, MAX5970_REG_STATUS2, ®);
if (ret)
return ret;
switch (MAX5970_IRNG(reg, ch)) {
case 0:
*irng = 100000; /* 100 mV */
break;
case 1:
*irng = 50000; /* 50 mV */
break;
case 2:
*irng = 25000; /* 25 mV */
break;
default:
return -EINVAL;
}
/* Decode current voltage monitor range */
ret = regmap_read(regmap, MAX5970_REG_MON_RANGE, ®);
if (ret)
return ret;
*mon_rng = MAX5970_MON_MAX_RANGE_UV >> MAX5970_MON(reg, ch);
return 0;
}
static int max597x_setup_irq(struct device *dev,
int irq,
struct regulator_dev *rdevs[MAX5970_NUM_SWITCHES],
int num_switches, struct max5970_regulator *data)
{
struct regulator_irq_desc max597x_notif = {
.name = "max597x-irq",
.map_event = max597x_irq_handler,
.data = data,
};
int errs = REGULATOR_ERROR_UNDER_VOLTAGE |
REGULATOR_ERROR_UNDER_VOLTAGE_WARN |
REGULATOR_ERROR_OVER_VOLTAGE_WARN |
REGULATOR_ERROR_REGULATION_OUT |
REGULATOR_ERROR_OVER_CURRENT |
REGULATOR_ERROR_OVER_CURRENT_WARN | REGULATOR_ERROR_FAIL;
void *irq_helper;
/* Register notifiers - can fail if IRQ is not given */
irq_helper = devm_regulator_irq_helper(dev, &max597x_notif,
irq, 0, errs, NULL,
&rdevs[0], num_switches);
if (IS_ERR(irq_helper)) {
if (PTR_ERR(irq_helper) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_warn(dev, "IRQ disabled %pe\n", irq_helper);
}
return 0;
}
static int max597x_regulator_probe(struct platform_device *pdev)
{
struct max5970_data *max597x;
struct regmap *regmap = dev_get_regmap(pdev->dev.parent, NULL);
struct max5970_regulator *data;
struct i2c_client *i2c = to_i2c_client(pdev->dev.parent);
struct regulator_config config = { };
struct regulator_dev *rdev;
struct regulator_dev *rdevs[MAX5970_NUM_SWITCHES];
int num_switches;
int ret, i;
if (!regmap)
return -EPROBE_DEFER;
max597x = devm_kzalloc(&i2c->dev, sizeof(struct max5970_data), GFP_KERNEL);
if (!max597x)
return -ENOMEM;
i2c_set_clientdata(i2c, max597x);
if (of_device_is_compatible(i2c->dev.of_node, "maxim,max5978"))
max597x->num_switches = MAX5978_NUM_SWITCHES;
else if (of_device_is_compatible(i2c->dev.of_node, "maxim,max5970"))
max597x->num_switches = MAX5970_NUM_SWITCHES;
else
return -ENODEV;
i2c_set_clientdata(i2c, max597x);
num_switches = max597x->num_switches;
for (i = 0; i < num_switches; i++) {
data =
devm_kzalloc(&i2c->dev, sizeof(struct max5970_regulator),
GFP_KERNEL);
if (!data)
return -ENOMEM;
data->num_switches = num_switches;
data->regmap = regmap;
ret = max597x_adc_range(regmap, i, &max597x->irng[i], &max597x->mon_rng[i]);
if (ret < 0)
return ret;
data->irng = max597x->irng[i];
data->mon_rng = max597x->mon_rng[i];
config.dev = &i2c->dev;
config.driver_data = (void *)data;
config.regmap = data->regmap;
rdev = devm_regulator_register(&i2c->dev,
®ulators[i], &config);
if (IS_ERR(rdev)) {
dev_err(&i2c->dev, "failed to register regulator %s\n",
regulators[i].name);
return PTR_ERR(rdev);
}
rdevs[i] = rdev;
max597x->shunt_micro_ohms[i] = data->shunt_micro_ohms;
}
if (i2c->irq) {
ret =
max597x_setup_irq(&i2c->dev, i2c->irq, rdevs, num_switches,
data);
if (ret) {
dev_err(&i2c->dev, "IRQ setup failed");
return ret;
}
}
return ret;
}
static struct platform_driver max597x_regulator_driver = {
.driver = {
.name = "max5970-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = max597x_regulator_probe,
};
module_platform_driver(max597x_regulator_driver);
MODULE_AUTHOR("Patrick Rudolph <[email protected]>");
MODULE_DESCRIPTION("MAX5970_hot-swap controller driver");
MODULE_LICENSE("GPL v2");
| linux-master | drivers/regulator/max5970-regulator.c |
// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for National Semiconductors LP3971 PMIC chip
*
* Copyright (C) 2009 Samsung Electronics
* Author: Marek Szyprowski <[email protected]>
*
* Based on wm8350.c
*/
#include <linux/bug.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/lp3971.h>
#include <linux/slab.h>
struct lp3971 {
struct device *dev;
struct mutex io_lock;
struct i2c_client *i2c;
};
static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg);
static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val);
#define LP3971_SYS_CONTROL1_REG 0x07
/* System control register 1 initial value,
bits 4 and 5 are EPROM programmable */
#define SYS_CONTROL1_INIT_VAL 0x40
#define SYS_CONTROL1_INIT_MASK 0xCF
#define LP3971_BUCK_VOL_ENABLE_REG 0x10
#define LP3971_BUCK_VOL_CHANGE_REG 0x20
/* Voltage control registers shift:
LP3971_BUCK1 -> 0
LP3971_BUCK2 -> 4
LP3971_BUCK3 -> 6
*/
#define BUCK_VOL_CHANGE_SHIFT(x) (((!!x) << 2) | (x & ~0x01))
#define BUCK_VOL_CHANGE_FLAG_GO 0x01
#define BUCK_VOL_CHANGE_FLAG_TARGET 0x02
#define BUCK_VOL_CHANGE_FLAG_MASK 0x03
#define LP3971_BUCK1_BASE 0x23
#define LP3971_BUCK2_BASE 0x29
#define LP3971_BUCK3_BASE 0x32
static const int buck_base_addr[] = {
LP3971_BUCK1_BASE,
LP3971_BUCK2_BASE,
LP3971_BUCK3_BASE,
};
#define LP3971_BUCK_TARGET_VOL1_REG(x) (buck_base_addr[x])
#define LP3971_BUCK_TARGET_VOL2_REG(x) (buck_base_addr[x]+1)
static const unsigned int buck_voltage_map[] = {
0, 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000,
1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000,
1550000, 1600000, 1650000, 1700000, 1800000, 1900000, 2500000, 2800000,
3000000, 3300000,
};
#define BUCK_TARGET_VOL_MASK 0x3f
#define LP3971_BUCK_RAMP_REG(x) (buck_base_addr[x]+2)
#define LP3971_LDO_ENABLE_REG 0x12
#define LP3971_LDO_VOL_CONTR_BASE 0x39
/* Voltage control registers:
LP3971_LDO1 -> LP3971_LDO_VOL_CONTR_BASE + 0
LP3971_LDO2 -> LP3971_LDO_VOL_CONTR_BASE + 0
LP3971_LDO3 -> LP3971_LDO_VOL_CONTR_BASE + 1
LP3971_LDO4 -> LP3971_LDO_VOL_CONTR_BASE + 1
LP3971_LDO5 -> LP3971_LDO_VOL_CONTR_BASE + 2
*/
#define LP3971_LDO_VOL_CONTR_REG(x) (LP3971_LDO_VOL_CONTR_BASE + (x >> 1))
/* Voltage control registers shift:
LP3971_LDO1 -> 0, LP3971_LDO2 -> 4
LP3971_LDO3 -> 0, LP3971_LDO4 -> 4
LP3971_LDO5 -> 0
*/
#define LDO_VOL_CONTR_SHIFT(x) ((x & 1) << 2)
#define LDO_VOL_CONTR_MASK 0x0f
static const unsigned int ldo45_voltage_map[] = {
1000000, 1050000, 1100000, 1150000, 1200000, 1250000, 1300000, 1350000,
1400000, 1500000, 1800000, 1900000, 2500000, 2800000, 3000000, 3300000,
};
static const unsigned int ldo123_voltage_map[] = {
1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
2600000, 2700000, 2800000, 2900000, 3000000, 3100000, 3200000, 3300000,
};
#define LDO_VOL_MIN_IDX 0x00
#define LDO_VOL_MAX_IDX 0x0f
static int lp3971_ldo_is_enabled(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3971_LDO1;
u16 mask = 1 << (1 + ldo);
u16 val;
val = lp3971_reg_read(lp3971, LP3971_LDO_ENABLE_REG);
return (val & mask) != 0;
}
static int lp3971_ldo_enable(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3971_LDO1;
u16 mask = 1 << (1 + ldo);
return lp3971_set_bits(lp3971, LP3971_LDO_ENABLE_REG, mask, mask);
}
static int lp3971_ldo_disable(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3971_LDO1;
u16 mask = 1 << (1 + ldo);
return lp3971_set_bits(lp3971, LP3971_LDO_ENABLE_REG, mask, 0);
}
static int lp3971_ldo_get_voltage_sel(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3971_LDO1;
u16 val, reg;
reg = lp3971_reg_read(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo));
val = (reg >> LDO_VOL_CONTR_SHIFT(ldo)) & LDO_VOL_CONTR_MASK;
return val;
}
static int lp3971_ldo_set_voltage_sel(struct regulator_dev *dev,
unsigned int selector)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev) - LP3971_LDO1;
return lp3971_set_bits(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo),
LDO_VOL_CONTR_MASK << LDO_VOL_CONTR_SHIFT(ldo),
selector << LDO_VOL_CONTR_SHIFT(ldo));
}
static const struct regulator_ops lp3971_ldo_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.is_enabled = lp3971_ldo_is_enabled,
.enable = lp3971_ldo_enable,
.disable = lp3971_ldo_disable,
.get_voltage_sel = lp3971_ldo_get_voltage_sel,
.set_voltage_sel = lp3971_ldo_set_voltage_sel,
};
static int lp3971_dcdc_is_enabled(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3971_DCDC1;
u16 mask = 1 << (buck * 2);
u16 val;
val = lp3971_reg_read(lp3971, LP3971_BUCK_VOL_ENABLE_REG);
return (val & mask) != 0;
}
static int lp3971_dcdc_enable(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3971_DCDC1;
u16 mask = 1 << (buck * 2);
return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_ENABLE_REG, mask, mask);
}
static int lp3971_dcdc_disable(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3971_DCDC1;
u16 mask = 1 << (buck * 2);
return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_ENABLE_REG, mask, 0);
}
static int lp3971_dcdc_get_voltage_sel(struct regulator_dev *dev)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3971_DCDC1;
u16 reg;
reg = lp3971_reg_read(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck));
reg &= BUCK_TARGET_VOL_MASK;
return reg;
}
static int lp3971_dcdc_set_voltage_sel(struct regulator_dev *dev,
unsigned int selector)
{
struct lp3971 *lp3971 = rdev_get_drvdata(dev);
int buck = rdev_get_id(dev) - LP3971_DCDC1;
int ret;
ret = lp3971_set_bits(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck),
BUCK_TARGET_VOL_MASK, selector);
if (ret)
return ret;
ret = lp3971_set_bits(lp3971, LP3971_BUCK_VOL_CHANGE_REG,
BUCK_VOL_CHANGE_FLAG_MASK << BUCK_VOL_CHANGE_SHIFT(buck),
BUCK_VOL_CHANGE_FLAG_GO << BUCK_VOL_CHANGE_SHIFT(buck));
if (ret)
return ret;
return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_CHANGE_REG,
BUCK_VOL_CHANGE_FLAG_MASK << BUCK_VOL_CHANGE_SHIFT(buck),
0 << BUCK_VOL_CHANGE_SHIFT(buck));
}
static const struct regulator_ops lp3971_dcdc_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_ascend,
.is_enabled = lp3971_dcdc_is_enabled,
.enable = lp3971_dcdc_enable,
.disable = lp3971_dcdc_disable,
.get_voltage_sel = lp3971_dcdc_get_voltage_sel,
.set_voltage_sel = lp3971_dcdc_set_voltage_sel,
};
static const struct regulator_desc regulators[] = {
{
.name = "LDO1",
.id = LP3971_LDO1,
.ops = &lp3971_ldo_ops,
.n_voltages = ARRAY_SIZE(ldo123_voltage_map),
.volt_table = ldo123_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "LDO2",
.id = LP3971_LDO2,
.ops = &lp3971_ldo_ops,
.n_voltages = ARRAY_SIZE(ldo123_voltage_map),
.volt_table = ldo123_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "LDO3",
.id = LP3971_LDO3,
.ops = &lp3971_ldo_ops,
.n_voltages = ARRAY_SIZE(ldo123_voltage_map),
.volt_table = ldo123_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "LDO4",
.id = LP3971_LDO4,
.ops = &lp3971_ldo_ops,
.n_voltages = ARRAY_SIZE(ldo45_voltage_map),
.volt_table = ldo45_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "LDO5",
.id = LP3971_LDO5,
.ops = &lp3971_ldo_ops,
.n_voltages = ARRAY_SIZE(ldo45_voltage_map),
.volt_table = ldo45_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "DCDC1",
.id = LP3971_DCDC1,
.ops = &lp3971_dcdc_ops,
.n_voltages = ARRAY_SIZE(buck_voltage_map),
.volt_table = buck_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "DCDC2",
.id = LP3971_DCDC2,
.ops = &lp3971_dcdc_ops,
.n_voltages = ARRAY_SIZE(buck_voltage_map),
.volt_table = buck_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
{
.name = "DCDC3",
.id = LP3971_DCDC3,
.ops = &lp3971_dcdc_ops,
.n_voltages = ARRAY_SIZE(buck_voltage_map),
.volt_table = buck_voltage_map,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
},
};
static int lp3971_i2c_read(struct i2c_client *i2c, char reg, int count,
u16 *dest)
{
int ret;
if (count != 1)
return -EIO;
ret = i2c_smbus_read_byte_data(i2c, reg);
if (ret < 0)
return ret;
*dest = ret;
return 0;
}
static int lp3971_i2c_write(struct i2c_client *i2c, char reg, int count,
const u16 *src)
{
if (count != 1)
return -EIO;
return i2c_smbus_write_byte_data(i2c, reg, *src);
}
static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg)
{
u16 val = 0;
mutex_lock(&lp3971->io_lock);
lp3971_i2c_read(lp3971->i2c, reg, 1, &val);
dev_dbg(lp3971->dev, "reg read 0x%02x -> 0x%02x\n", (int)reg,
(unsigned)val&0xff);
mutex_unlock(&lp3971->io_lock);
return val & 0xff;
}
static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val)
{
u16 tmp;
int ret;
mutex_lock(&lp3971->io_lock);
ret = lp3971_i2c_read(lp3971->i2c, reg, 1, &tmp);
if (ret == 0) {
tmp = (tmp & ~mask) | val;
ret = lp3971_i2c_write(lp3971->i2c, reg, 1, &tmp);
dev_dbg(lp3971->dev, "reg write 0x%02x -> 0x%02x\n", (int)reg,
(unsigned)val&0xff);
}
mutex_unlock(&lp3971->io_lock);
return ret;
}
static int setup_regulators(struct lp3971 *lp3971,
struct lp3971_platform_data *pdata)
{
int i, err;
/* Instantiate the regulators */
for (i = 0; i < pdata->num_regulators; i++) {
struct regulator_config config = { };
struct lp3971_regulator_subdev *reg = &pdata->regulators[i];
struct regulator_dev *rdev;
config.dev = lp3971->dev;
config.init_data = reg->initdata;
config.driver_data = lp3971;
rdev = devm_regulator_register(lp3971->dev,
®ulators[reg->id], &config);
if (IS_ERR(rdev)) {
err = PTR_ERR(rdev);
dev_err(lp3971->dev, "regulator init failed: %d\n",
err);
return err;
}
}
return 0;
}
static int lp3971_i2c_probe(struct i2c_client *i2c)
{
struct lp3971 *lp3971;
struct lp3971_platform_data *pdata = dev_get_platdata(&i2c->dev);
int ret;
u16 val;
if (!pdata) {
dev_dbg(&i2c->dev, "No platform init data supplied\n");
return -ENODEV;
}
lp3971 = devm_kzalloc(&i2c->dev, sizeof(struct lp3971), GFP_KERNEL);
if (lp3971 == NULL)
return -ENOMEM;
lp3971->i2c = i2c;
lp3971->dev = &i2c->dev;
mutex_init(&lp3971->io_lock);
/* Detect LP3971 */
ret = lp3971_i2c_read(i2c, LP3971_SYS_CONTROL1_REG, 1, &val);
if (ret == 0 && (val & SYS_CONTROL1_INIT_MASK) != SYS_CONTROL1_INIT_VAL)
ret = -ENODEV;
if (ret < 0) {
dev_err(&i2c->dev, "failed to detect device\n");
return ret;
}
ret = setup_regulators(lp3971, pdata);
if (ret < 0)
return ret;
i2c_set_clientdata(i2c, lp3971);
return 0;
}
static const struct i2c_device_id lp3971_i2c_id[] = {
{ "lp3971", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lp3971_i2c_id);
static struct i2c_driver lp3971_i2c_driver = {
.driver = {
.name = "LP3971",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = lp3971_i2c_probe,
.id_table = lp3971_i2c_id,
};
module_i2c_driver(lp3971_i2c_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Marek Szyprowski <[email protected]>");
MODULE_DESCRIPTION("LP3971 PMIC driver");
| linux-master | drivers/regulator/lp3971.c |
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