text: // SPDX-License-Identifier: GPL-2.0-only
  /*
   * Support for HTC Magician PDA phones:
   * i-mate JAM, O2 Xda mini, Orange SPV M500, Qtek s100, Qtek s110
   * and T-Mobile MDA Compact.
   *
   * Copyright (c) 2006-2007 Philipp Zabel
   *
   * Based on hx4700.c, spitz.c and others.
   */
  
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/platform_device.h>
  #include <linux/delay.h>
  #include <linux/gpio.h>
  #include <linux/gpio/machine.h>
  #include <linux/gpio_keys.h>
  #include <linux/input.h>
  #include <linux/mfd/htc-pasic3.h>
  #include <linux/mtd/physmap.h>
  #include <linux/pda_power.h>
  #include <linux/platform_data/gpio-htc-egpio.h>
  #include <linux/pwm.h>
  #include <linux/pwm_backlight.h>
  #include <linux/regulator/driver.h>
  #include <linux/regulator/fixed.h>
  #include <linux/regulator/gpio-regulator.h>
  #include <linux/regulator/machine.h>
  #include <linux/platform_data/i2c-pxa.h>
  
  #include <mach/hardware.h>
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/system_info.h>
  
  #include "pxa27x.h"
  #include <mach/magician.h>
  #include <linux/platform_data/video-pxafb.h>
  #include <linux/platform_data/mmc-pxamci.h>
  #include <linux/platform_data/irda-pxaficp.h>
  #include <linux/platform_data/usb-ohci-pxa27x.h>
  
  #include <linux/regulator/max1586.h>
  
  #include <linux/platform_data/pxa2xx_udc.h>
  
  #include "udc.h"
  #include "pxa27x-udc.h"
  #include "devices.h"
  #include "generic.h"
  
  #include <linux/spi/spi.h>
  #include <linux/spi/pxa2xx_spi.h>
  #include <linux/spi/ads7846.h>
  
  static unsigned long magician_pin_config[] __initdata = {
  
  	/* SDRAM and Static Memory I/O Signals */
  	GPIO20_nSDCS_2,
  	GPIO21_nSDCS_3,
  	GPIO15_nCS_1,
  	GPIO78_nCS_2,	/* PASIC3 */
  	GPIO79_nCS_3,	/* EGPIO CPLD */
  	GPIO80_nCS_4,
  	GPIO33_nCS_5,
  
  	/* I2C UDA1380 + OV9640 */
  	GPIO117_I2C_SCL,
  	GPIO118_I2C_SDA,
  
  	/* PWM 0 - LCD backlight */
  	GPIO16_PWM0_OUT,
  
  	/* I2S UDA1380 capture */
  	GPIO28_I2S_BITCLK_OUT,
  	GPIO29_I2S_SDATA_IN,
  	GPIO31_I2S_SYNC,
  	GPIO113_I2S_SYSCLK,
  
  	/* SSP 1 UDA1380 playback */
  	GPIO23_SSP1_SCLK,
  	GPIO24_SSP1_SFRM,
  	GPIO25_SSP1_TXD,
  
  	/* SSP 2 TSC2046 touchscreen */
  	GPIO19_SSP2_SCLK,
  	MFP_CFG_OUT(GPIO14, AF0, DRIVE_HIGH),	/* frame as GPIO */
  	GPIO89_SSP2_TXD,
  	GPIO88_SSP2_RXD,
  
  	/* MMC/SD/SDHC slot */
  	GPIO32_MMC_CLK,
  	GPIO92_MMC_DAT_0,
  	GPIO109_MMC_DAT_1,
  	GPIO110_MMC_DAT_2,
  	GPIO111_MMC_DAT_3,
  	GPIO112_MMC_CMD,
  
  	/* LCD */
  	GPIOxx_LCD_TFT_16BPP,
  
  	/* QCI camera interface */
  	GPIO12_CIF_DD_7,
  	GPIO17_CIF_DD_6,
  	GPIO50_CIF_DD_3,
  	GPIO51_CIF_DD_2,
  	GPIO52_CIF_DD_4,
  	GPIO53_CIF_MCLK,
  	GPIO54_CIF_PCLK,
  	GPIO55_CIF_DD_1,
  	GPIO81_CIF_DD_0,
  	GPIO82_CIF_DD_5,
  	GPIO84_CIF_FV,
  	GPIO85_CIF_LV,
  
  	/* Magician specific input GPIOs */
  	GPIO9_GPIO,	/* unknown */
  	GPIO10_GPIO,	/* GSM_IRQ */
  	GPIO13_GPIO,	/* CPLD_IRQ */
  	GPIO107_GPIO,	/* DS1WM_IRQ */
  	GPIO108_GPIO,	/* GSM_READY */
  	GPIO115_GPIO,	/* nPEN_IRQ */
  };
  
  /*
   * IrDA
   */
  
  static struct pxaficp_platform_data magician_ficp_info = {
  	.gpio_pwdown		= GPIO83_MAGICIAN_nIR_EN,
  	.transceiver_cap	= IR_SIRMODE | IR_OFF,
  	.gpio_pwdown_inverted	= 0,
  };
  
  /*
   * GPIO Keys
   */
  
  #define INIT_KEY(_code, _gpio, _desc)	\
  	{				\
  		.code	= KEY_##_code,	\
  		.gpio	= _gpio,	\
  		.desc	= _desc,	\
  		.type	= EV_KEY,	\
  		.wakeup	= 1,		\
  	}
  
  static struct gpio_keys_button magician_button_table[] = {
  	INIT_KEY(POWER,      GPIO0_MAGICIAN_KEY_POWER,      "Power button"),
  	INIT_KEY(ESC,        GPIO37_MAGICIAN_KEY_HANGUP,    "Hangup button"),
  	INIT_KEY(F10,        GPIO38_MAGICIAN_KEY_CONTACTS,  "Contacts button"),
  	INIT_KEY(CALENDAR,   GPIO90_MAGICIAN_KEY_CALENDAR,  "Calendar button"),
  	INIT_KEY(CAMERA,     GPIO91_MAGICIAN_KEY_CAMERA,    "Camera button"),
  	INIT_KEY(UP,         GPIO93_MAGICIAN_KEY_UP,        "Up button"),
  	INIT_KEY(DOWN,       GPIO94_MAGICIAN_KEY_DOWN,      "Down button"),
  	INIT_KEY(LEFT,       GPIO95_MAGICIAN_KEY_LEFT,      "Left button"),
  	INIT_KEY(RIGHT,      GPIO96_MAGICIAN_KEY_RIGHT,     "Right button"),
  	INIT_KEY(KPENTER,    GPIO97_MAGICIAN_KEY_ENTER,     "Action button"),
  	INIT_KEY(RECORD,     GPIO98_MAGICIAN_KEY_RECORD,    "Record button"),
  	INIT_KEY(VOLUMEUP,   GPIO100_MAGICIAN_KEY_VOL_UP,   "Volume up"),
  	INIT_KEY(VOLUMEDOWN, GPIO101_MAGICIAN_KEY_VOL_DOWN, "Volume down"),
  	INIT_KEY(PHONE,      GPIO102_MAGICIAN_KEY_PHONE,    "Phone button"),
  	INIT_KEY(PLAY,       GPIO99_MAGICIAN_HEADPHONE_IN,  "Headset button"),
  };
  
  static struct gpio_keys_platform_data gpio_keys_data = {
  	.buttons	= magician_button_table,
  	.nbuttons	= ARRAY_SIZE(magician_button_table),
  };
  
  static struct platform_device gpio_keys = {
  	.name	= "gpio-keys",
  	.dev	= {
  		.platform_data = &gpio_keys_data,
  	},
  	.id	= -1,
  };
  
  /*
   * EGPIO (Xilinx CPLD)
   *
   * 32-bit aligned 8-bit registers
   * 16 possible registers (reg windows size), only 7 used:
   * 3x output, 1x irq, 3x input
   */
  
  static struct resource egpio_resources[] = {
  	[0] = {
  		.start	= PXA_CS3_PHYS,
  		.end	= PXA_CS3_PHYS + 0x20 - 1,
  		.flags	= IORESOURCE_MEM,
  	},
  	[1] = {
  		.start	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
  		.end	= PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
  		.flags	= IORESOURCE_IRQ,
  	},
  };
  
  static struct htc_egpio_chip egpio_chips[] = {
  	[0] = {
  		.reg_start	= 0,
  		.gpio_base	= MAGICIAN_EGPIO(0, 0),
  		.num_gpios	= 24,
  		.direction	= HTC_EGPIO_OUTPUT,
  		/*
  		 * Depends on modules configuration
  		 */
  		.initial_values	= 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
  	},
  	[1] = {
  		.reg_start	= 4,
  		.gpio_base	= MAGICIAN_EGPIO(4, 0),
  		.num_gpios	= 24,
  		.direction	= HTC_EGPIO_INPUT,
  	},
  };
  
  static struct htc_egpio_platform_data egpio_info = {
  	.reg_width	= 8,
  	.bus_width	= 32,
  	.irq_base	= IRQ_BOARD_START,
  	.num_irqs	= 4,
  	.ack_register	= 3,
  	.chip		= egpio_chips,
  	.num_chips	= ARRAY_SIZE(egpio_chips),
  };
  
  static struct platform_device egpio = {
  	.name		= "htc-egpio",
  	.id		= -1,
  	.resource	= egpio_resources,
  	.num_resources	= ARRAY_SIZE(egpio_resources),
  	.dev = {
  		.platform_data = &egpio_info,
  	},
  };
  
  /*
   * PXAFB LCD - Toppoly TD028STEB1 or Samsung LTP280QV
   */
  
  static struct pxafb_mode_info toppoly_modes[] = {
  	{
  		.pixclock	= 96153,
  		.bpp		= 16,
  		.xres		= 240,
  		.yres		= 320,
  		.hsync_len	= 11,
  		.vsync_len	= 3,
  		.left_margin	= 19,
  		.upper_margin	= 2,
  		.right_margin	= 10,
  		.lower_margin	= 2,
  		.sync		= 0,
  	},
  };
  
  static struct pxafb_mode_info samsung_modes[] = {
  	{
  		.pixclock	= 226469,
  		.bpp		= 16,
  		.xres		= 240,
  		.yres		= 320,
  		.hsync_len	= 8,
  		.vsync_len	= 4,
  		.left_margin	= 9,
  		.upper_margin	= 4,
  		.right_margin	= 9,
  		.lower_margin	= 4,
  		.sync	= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  	},
  };
  
  static void toppoly_lcd_power(int on, struct fb_var_screeninfo *si)
  {
  	pr_debug("Toppoly LCD power: %s\n", on ? "on" : "off");
  
  	if (on) {
  		gpio_set_value(EGPIO_MAGICIAN_TOPPOLY_POWER, 1);
  		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
  		udelay(2000);
  		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
  		udelay(2000);
  		/* FIXME: enable LCDC here */
  		udelay(2000);
  		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
  		udelay(2000);
  		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
  	} else {
  		msleep(15);
  		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
  		udelay(500);
  		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
  		udelay(1000);
  		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
  		gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
  	}
  }
  
  static void samsung_lcd_power(int on, struct fb_var_screeninfo *si)
  {
  	pr_debug("Samsung LCD power: %s\n", on ? "on" : "off");
  
  	if (on) {
  		if (system_rev < 3)
  			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 1);
  		else
  			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 1);
  		mdelay(6);
  		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 1);
  		mdelay(6);	/* Avdd -> Voff >5ms */
  		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 1);
  		mdelay(16);	/* Voff -> Von >(5+10)ms */
  		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 1);
  	} else {
  		gpio_set_value(GPIO105_MAGICIAN_LCD_VON_EN, 0);
  		mdelay(16);
  		gpio_set_value(GPIO104_MAGICIAN_LCD_VOFF_EN, 0);
  		mdelay(6);
  		gpio_set_value(GPIO106_MAGICIAN_LCD_DCDC_NRESET, 0);
  		mdelay(6);
  		if (system_rev < 3)
  			gpio_set_value(GPIO75_MAGICIAN_SAMSUNG_POWER, 0);
  		else
  			gpio_set_value(EGPIO_MAGICIAN_LCD_POWER, 0);
  	}
  }
  
  static struct pxafb_mach_info toppoly_info = {
  	.modes			= toppoly_modes,
  	.num_modes		= 1,
  	.fixed_modes		= 1,
  	.lcd_conn		= LCD_COLOR_TFT_16BPP,
  	.pxafb_lcd_power	= toppoly_lcd_power,
  };
  
  static struct pxafb_mach_info samsung_info = {
  	.modes			= samsung_modes,
  	.num_modes		= 1,
  	.fixed_modes		= 1,
  	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
  		LCD_ALTERNATE_MAPPING,
  	.pxafb_lcd_power	= samsung_lcd_power,
  };
  
  /*
   * Backlight
   */
  
  static struct pwm_lookup magician_pwm_lookup[] = {
  	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923,
  		   PWM_POLARITY_NORMAL),
  };
  
   /*
   * fixed regulator for pwm_backlight
   */
  
  static struct regulator_consumer_supply pwm_backlight_supply[] = {
  	REGULATOR_SUPPLY("power", "pwm_backlight"),
  };
  
  
  static struct gpio magician_bl_gpios[] = {
  	{ EGPIO_MAGICIAN_BL_POWER,	GPIOF_DIR_OUT, "Backlight power" },
  	{ EGPIO_MAGICIAN_BL_POWER2,	GPIOF_DIR_OUT, "Backlight power 2" },
  };
  
  static int magician_backlight_init(struct device *dev)
  {
  	return gpio_request_array(ARRAY_AND_SIZE(magician_bl_gpios));
  }
  
  static int magician_backlight_notify(struct device *dev, int brightness)
  {
  	pr_debug("Brightness = %i\n", brightness);
  	gpio_set_value(EGPIO_MAGICIAN_BL_POWER, brightness);
  	if (brightness >= 200) {
  		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 1);
  		return brightness - 72;
  	} else {
  		gpio_set_value(EGPIO_MAGICIAN_BL_POWER2, 0);
  		return brightness;
  	}
  }
  
  static void magician_backlight_exit(struct device *dev)
  {
  	gpio_free_array(ARRAY_AND_SIZE(magician_bl_gpios));
  }
  
  /*
   * LCD PWM backlight (main)
   *
   * MP1521 frequency should be:
   *	100-400 Hz = 2 .5*10^6 - 10 *10^6 ns
   */
  
  static struct platform_pwm_backlight_data backlight_data = {
  	.max_brightness	= 272,
  	.dft_brightness	= 100,
  	.init		= magician_backlight_init,
  	.notify		= magician_backlight_notify,
  	.exit		= magician_backlight_exit,
  };
  
  static struct platform_device backlight = {
  	.name	= "pwm-backlight",
  	.id	= -1,
  	.dev	= {
  		.parent		= &pxa27x_device_pwm0.dev,
  		.platform_data	= &backlight_data,
  	},
  };
  
  /*
   * GPIO LEDs, Phone keys backlight, vibra
   */
  
  static struct gpio_led gpio_leds[] = {
  	{
  		.name = "magician::vibra",
  		.default_trigger = "none",
  		.gpio = GPIO22_MAGICIAN_VIBRA_EN,
  	},
  	{
  		.name = "magician::phone_bl",
  		.default_trigger = "backlight",
  		.gpio = GPIO103_MAGICIAN_LED_KP,
  	},
  };
  
  static struct gpio_led_platform_data gpio_led_info = {
  	.leds = gpio_leds,
  	.num_leds = ARRAY_SIZE(gpio_leds),
  };
  
  static struct platform_device leds_gpio = {
  	.name	= "leds-gpio",
  	.id	= -1,
  	.dev	= {
  		.platform_data = &gpio_led_info,
  	},
  };
  
  /*
   * PASIC3 with DS1WM
   */
  
  static struct resource pasic3_resources[] = {
  	[0] = {
  		.start	= PXA_CS2_PHYS,
  		.end	= PXA_CS2_PHYS + 0x1b,
  		.flags	= IORESOURCE_MEM,
  	},
  	/* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
  	[1] = {
  		.start	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
  		.end	= PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
  		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  	}
  };
  
  static struct pasic3_platform_data pasic3_platform_data = {
  	.clock_rate = 4000000,
  };
  
  static struct platform_device pasic3 = {
  	.name		= "pasic3",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(pasic3_resources),
  	.resource	= pasic3_resources,
  	.dev = {
  		.platform_data = &pasic3_platform_data,
  	},
  };
  
  /*
   * PXA UDC
   */
  
  static void magician_udc_command(int cmd)
  {
  	if (cmd == PXA2XX_UDC_CMD_CONNECT)
  		UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
  	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
  		UP2OCR &= ~(UP2OCR_DPPUE | UP2OCR_DPPUBE);
  }
  
  static struct pxa2xx_udc_mach_info magician_udc_info __initdata = {
  	.udc_command	= magician_udc_command,
  	.gpio_pullup	= GPIO27_MAGICIAN_USBC_PUEN,
  };
  
  /*
   * USB device VBus detection
   */
  
  static struct resource gpio_vbus_resource = {
  	.flags	= IORESOURCE_IRQ,
  	.start	= IRQ_MAGICIAN_VBUS,
  	.end	= IRQ_MAGICIAN_VBUS,
  };
  
  static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
  	.dev_id = "gpio-vbus",
  	.table = {
  		/*
  		 * EGPIO on register 4 index 1, the second EGPIO chip
  		 * starts at register 4 so this will be at index 1 on that
  		 * chip.
  		 */
  		GPIO_LOOKUP("htc-egpio-1", 1,
  			    "vbus", GPIO_ACTIVE_HIGH),
  		GPIO_LOOKUP("gpio-pxa", GPIO27_MAGICIAN_USBC_PUEN,
  			    "pullup", GPIO_ACTIVE_HIGH),
  		{ },
  	},
  };
  
  static struct platform_device gpio_vbus = {
  	.name		= "gpio-vbus",
  	.id		= -1,
  	.num_resources	= 1,
  	.resource	= &gpio_vbus_resource,
  };
  
  /*
   * External power
   */
  
  static int magician_supply_init(struct device *dev)
  {
  	int ret = -1;
  
  	ret = gpio_request(EGPIO_MAGICIAN_CABLE_TYPE, "Cable is AC charger");
  	if (ret) {
  		pr_err("Cannot request AC/USB charger GPIO (%i)\n", ret);
  		goto err_ac;
  	}
  
  	ret = gpio_request(EGPIO_MAGICIAN_CABLE_INSERTED, "Cable inserted");
  	if (ret) {
  		pr_err("Cannot request cable detection GPIO (%i)\n", ret);
  		goto err_usb;
  	}
  
  	return 0;
  
  err_usb:
  	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
  err_ac:
  	return ret;
  }
  
  static void magician_set_charge(int flags)
  {
  	if (flags & PDA_POWER_CHARGE_AC) {
  		pr_debug("Charging from AC\n");
  		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
  	} else if (flags & PDA_POWER_CHARGE_USB) {
  		pr_debug("Charging from USB\n");
  		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 1);
  	} else {
  		pr_debug("Charging disabled\n");
  		gpio_set_value(EGPIO_MAGICIAN_NICD_CHARGE, 0);
  	}
  }
  
  static int magician_is_ac_online(void)
  {
  	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
  		gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE); /* AC=1 */
  }
  
  static int magician_is_usb_online(void)
  {
  	return gpio_get_value(EGPIO_MAGICIAN_CABLE_INSERTED) &&
  		(!gpio_get_value(EGPIO_MAGICIAN_CABLE_TYPE)); /* USB=0 */
  }
  
  static void magician_supply_exit(struct device *dev)
  {
  	gpio_free(EGPIO_MAGICIAN_CABLE_INSERTED);
  	gpio_free(EGPIO_MAGICIAN_CABLE_TYPE);
  }
  
  static char *magician_supplicants[] = {
  	"ds2760-battery.0", "backup-battery"
  };
  
  static struct pda_power_pdata power_supply_info = {
  	.init			= magician_supply_init,
  	.exit			= magician_supply_exit,
  	.is_ac_online		= magician_is_ac_online,
  	.is_usb_online		= magician_is_usb_online,
  	.set_charge		= magician_set_charge,
  	.supplied_to		= magician_supplicants,
  	.num_supplicants	= ARRAY_SIZE(magician_supplicants),
  };
  
  static struct resource power_supply_resources[] = {
  	[0] = {
  		.name	= "ac",
  		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
  			IORESOURCE_IRQ_LOWEDGE,
  		.start	= IRQ_MAGICIAN_VBUS,
  		.end	= IRQ_MAGICIAN_VBUS,
  	},
  	[1] = {
  		.name	= "usb",
  		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
  			IORESOURCE_IRQ_LOWEDGE,
  		.start	= IRQ_MAGICIAN_VBUS,
  		.end	= IRQ_MAGICIAN_VBUS,
  	},
  };
  
  static struct platform_device power_supply = {
  	.name	= "pda-power",
  	.id	= -1,
  	.dev = {
  		.platform_data = &power_supply_info,
  	},
  	.resource	= power_supply_resources,
  	.num_resources	= ARRAY_SIZE(power_supply_resources),
  };
  
  /*
   * Battery charger
   */
  
  static struct regulator_consumer_supply bq24022_consumers[] = {
  	REGULATOR_SUPPLY("vbus_draw", NULL),
  	REGULATOR_SUPPLY("ac_draw", NULL),
  };
  
  static struct regulator_init_data bq24022_init_data = {
  	.constraints = {
  		.max_uA		= 500000,
  		.valid_ops_mask	= REGULATOR_CHANGE_CURRENT |
  			REGULATOR_CHANGE_STATUS,
  	},
  	.num_consumer_supplies	= ARRAY_SIZE(bq24022_consumers),
  	.consumer_supplies	= bq24022_consumers,
  };
  
  
  static enum gpiod_flags bq24022_gpiod_gflags[] = { GPIOD_OUT_LOW };
  
  static struct gpio_regulator_state bq24022_states[] = {
  	{ .value = 100000, .gpios = (0 << 0) },
  	{ .value = 500000, .gpios = (1 << 0) },
  };
  
  static struct gpio_regulator_config bq24022_info = {
  	.supply_name		= "bq24022",
  
  	.enabled_at_boot	= 1,
  
  	.gflags = bq24022_gpiod_gflags,
  	.ngpios = ARRAY_SIZE(bq24022_gpiod_gflags),
  
  	.states			= bq24022_states,
  	.nr_states		= ARRAY_SIZE(bq24022_states),
  
  	.type			= REGULATOR_CURRENT,
  	.init_data		= &bq24022_init_data,
  };
  
  static struct platform_device bq24022 = {
  	.name	= "gpio-regulator",
  	.id	= -1,
  	.dev	= {
  		.platform_data = &bq24022_info,
  	},
  };
  
  static struct gpiod_lookup_table bq24022_gpiod_table = {
  	.dev_id = "gpio-regulator",
  	.table = {
  		GPIO_LOOKUP("gpio-pxa", EGPIO_MAGICIAN_BQ24022_ISET2,
  			    NULL, GPIO_ACTIVE_HIGH),
  		GPIO_LOOKUP("gpio-pxa", GPIO30_MAGICIAN_BQ24022_nCHARGE_EN,
  			    "enable", GPIO_ACTIVE_LOW),
  		{ },
  	},
  };
  
  /*
   * fixed regulator for ads7846
   */
  
  static struct regulator_consumer_supply ads7846_supply =
  	REGULATOR_SUPPLY("vcc", "spi2.0");
  
  static struct regulator_init_data vads7846_regulator = {
  	.constraints	= {
  		.valid_ops_mask	= REGULATOR_CHANGE_STATUS,
  	},
  	.num_consumer_supplies	= 1,
  	.consumer_supplies	= &ads7846_supply,
  };
  
  static struct fixed_voltage_config vads7846 = {
  	.supply_name	= "vads7846",
  	.microvolts	= 3300000, /* probably */
  	.startup_delay	= 0,
  	.init_data	= &vads7846_regulator,
  };
  
  static struct platform_device vads7846_device = {
  	.name	= "reg-fixed-voltage",
  	.id	= -1,
  	.dev	= {
  		.platform_data	= &vads7846,
  	},
  };
  
  /*
   * Vcore regulator MAX1587A
   */
  
  static struct regulator_consumer_supply magician_max1587a_consumers[] = {
  	REGULATOR_SUPPLY("vcc_core", NULL),
  };
  
  static struct regulator_init_data magician_max1587a_v3_info = {
  	.constraints = {
  		.name		= "vcc_core range",
  		.min_uV		= 700000,
  		.max_uV		= 1475000,
  		.always_on	= 1,
  		.valid_ops_mask	= REGULATOR_CHANGE_VOLTAGE,
  	},
  	.consumer_supplies	= magician_max1587a_consumers,
  	.num_consumer_supplies	= ARRAY_SIZE(magician_max1587a_consumers),
  };
  
  static struct max1586_subdev_data magician_max1587a_subdevs[] = {
  	{
  		.name		= "vcc_core",
  		.id		= MAX1586_V3,
  		.platform_data	= &magician_max1587a_v3_info,
  	}
  };
  
  static struct max1586_platform_data magician_max1587a_info = {
  	.subdevs     = magician_max1587a_subdevs,
  	.num_subdevs = ARRAY_SIZE(magician_max1587a_subdevs),
  	/*
  	 * NOTICE measured directly on the PCB (board_id == 0x3a), but
  	 * if R24 is present, it will boost the voltage
  	 * (write 1.475V, get 1.645V and smoke)
  	 */
  	.v3_gain     = MAX1586_GAIN_NO_R24,
  };
  
  static struct i2c_board_info magician_pwr_i2c_board_info[] __initdata = {
  	{
  		I2C_BOARD_INFO("max1586", 0x14),
  		.platform_data	= &magician_max1587a_info,
  	},
  };
  
  /*
   * MMC/SD
   */
  
  static int magician_mci_init(struct device *dev,
  	irq_handler_t detect_irq, void *data)
  {
  	return request_irq(IRQ_MAGICIAN_SD, detect_irq, 0,
  		"mmc card detect", data);
  }
  
  static void magician_mci_exit(struct device *dev, void *data)
  {
  	free_irq(IRQ_MAGICIAN_SD, data);
  }
  
  static struct pxamci_platform_data magician_mci_info = {
  	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
  	.init			= magician_mci_init,
  	.exit			= magician_mci_exit,
  	.gpio_card_ro_invert	= 1,
  };
  
  /*
   * Write protect on EGPIO register 5 index 4, this is on the second HTC
   * EGPIO chip which starts at register 4, so we need offset 8+4=12 on that
   * particular chip.
   */
  #define EGPIO_MAGICIAN_nSD_READONLY_OFFSET 12
  /*
   * Power on EGPIO register 2 index 0, so this is on the first HTC EGPIO chip
   * starting at register 0 so we need offset 2*8+0 = 16 on that chip.
   */
  #define EGPIO_MAGICIAN_nSD_POWER_OFFSET 16
  
  static struct gpiod_lookup_table magician_mci_gpio_table = {
  	.dev_id = "pxa2xx-mci.0",
  	.table = {
  		GPIO_LOOKUP("htc-egpio-1", EGPIO_MAGICIAN_nSD_READONLY_OFFSET,
  			    "wp", GPIO_ACTIVE_HIGH),
  		GPIO_LOOKUP("htc-egpio-0", EGPIO_MAGICIAN_nSD_POWER_OFFSET,
  			    "power", GPIO_ACTIVE_HIGH),
  		{ },
  	},
  };
  
  /*
   * USB OHCI
   */
  
  static struct pxaohci_platform_data magician_ohci_info = {
  	.port_mode	= PMM_PERPORT_MODE,
  	/* port1: CSR Bluetooth, port2: OTG with UDC */
  	.flags		= ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
  	.power_budget	= 0,
  	.power_on_delay = 100,
  };
  
  /*
   * StrataFlash
   */
  
  static int magician_flash_init(struct platform_device *pdev)
  {
  	int ret = gpio_request(EGPIO_MAGICIAN_FLASH_VPP, "flash Vpp enable");
  
  	if (ret) {
  		pr_err("Cannot request flash enable GPIO (%i)\n", ret);
  		return ret;
  	}
  
  	ret = gpio_direction_output(EGPIO_MAGICIAN_FLASH_VPP, 1);
  	if (ret) {
  		pr_err("Cannot set direction for flash enable (%i)\n", ret);
  		gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
  	}
  
  	return ret;
  }
  
  static void magician_set_vpp(struct platform_device *pdev, int vpp)
  {
  	gpio_set_value(EGPIO_MAGICIAN_FLASH_VPP, vpp);
  }
  
  static void magician_flash_exit(struct platform_device *pdev)
  {
  	gpio_free(EGPIO_MAGICIAN_FLASH_VPP);
  }
  
  static struct resource strataflash_resource = {
  	.start	= PXA_CS0_PHYS,
  	.end	= PXA_CS0_PHYS + SZ_64M - 1,
  	.flags	= IORESOURCE_MEM,
  };
  
  static struct mtd_partition magician_flash_parts[] = {
  	{
  		.name		= "Bootloader",
  		.offset		= 0x0,
  		.size		= 0x40000,
  		.mask_flags	= MTD_WRITEABLE, /* EXPERIMENTAL */
  	},
  	{
  		.name		= "Linux Kernel",
  		.offset		= 0x40000,
  		.size		= MTDPART_SIZ_FULL,
  	},
  };
  
  /*
   * physmap-flash driver
   */
  
  static struct physmap_flash_data strataflash_data = {
  	.width		= 4,
  	.init		= magician_flash_init,
  	.set_vpp	= magician_set_vpp,
  	.exit		= magician_flash_exit,
  	.parts		= magician_flash_parts,
  	.nr_parts	= ARRAY_SIZE(magician_flash_parts),
  };
  
  static struct platform_device strataflash = {
  	.name		= "physmap-flash",
  	.id		= -1,
  	.resource	= &strataflash_resource,
  	.num_resources	= 1,
  	.dev = {
  		.platform_data = &strataflash_data,
  	},
  };
  
  /*
   * PXA I2C main controller
   */
  
  static struct i2c_pxa_platform_data i2c_info = {
  	/* OV9640 I2C device doesn't support fast mode */
  	.fast_mode	= 0,
  };
  
  /*
   * PXA I2C power controller
   */
  
  static struct i2c_pxa_platform_data magician_i2c_power_info = {
  	.fast_mode	= 1,
  };
  
  /*
   * Touchscreen
   */
  
  static struct ads7846_platform_data ads7846_pdata = {
  	.model		= 7846,
  	.x_plate_ohms	= 317,
  	.y_plate_ohms	= 500,
  	.pressure_max	= 1023,	/* with x plate ohms it will overflow 255 */
  	.debounce_max	= 3,	/* first readout is always bad */
  	.debounce_tol	= 30,
  	.debounce_rep	= 0,
  	.gpio_pendown	= GPIO115_MAGICIAN_nPEN_IRQ,
  	.keep_vref_on	= 1,
  	.wakeup		= true,
  	.vref_delay_usecs		= 100,
  	.penirq_recheck_delay_usecs	= 100,
  };
  
  struct pxa2xx_spi_chip tsc2046_chip_info = {
  	.tx_threshold	= 1,
  	.rx_threshold	= 2,
  	.timeout	= 64,
  	/* NOTICE must be GPIO, incompatibility with hw PXA SPI framing */
  	.gpio_cs	= GPIO14_MAGICIAN_TSC2046_CS,
  };
  
  static struct pxa2xx_spi_controller magician_spi_info = {
  	.num_chipselect	= 1,
  	.enable_dma	= 1,
  };
  
  static struct spi_board_info ads7846_spi_board_info[] __initdata = {
  	{
  		.modalias		= "ads7846",
  		.bus_num		= 2,
  		.max_speed_hz		= 2500000,
  		.platform_data		= &ads7846_pdata,
  		.controller_data	= &tsc2046_chip_info,
  		.irq = PXA_GPIO_TO_IRQ(GPIO115_MAGICIAN_nPEN_IRQ),
  	},
  };
  
  /*
   * Platform devices
   */
  
  static struct platform_device *devices[] __initdata = {
  	&gpio_keys,
  	&egpio,
  	&backlight,
  	&pasic3,
  	&bq24022,
  	&gpio_vbus,
  	&power_supply,
  	&strataflash,
  	&leds_gpio,
  	&vads7846_device,
  };
  
  static struct gpio magician_global_gpios[] = {
  	{ GPIO13_MAGICIAN_CPLD_IRQ, GPIOF_IN, "CPLD_IRQ" },
  	{ GPIO107_MAGICIAN_DS1WM_IRQ, GPIOF_IN, "DS1WM_IRQ" },
  
  	/* NOTICE valid LCD init sequence */
  	{ GPIO106_MAGICIAN_LCD_DCDC_NRESET, GPIOF_OUT_INIT_LOW, "LCD DCDC nreset" },
  	{ GPIO104_MAGICIAN_LCD_VOFF_EN, GPIOF_OUT_INIT_LOW, "LCD VOFF enable" },
  	{ GPIO105_MAGICIAN_LCD_VON_EN, GPIOF_OUT_INIT_LOW, "LCD VON enable" },
  };
  
  static void __init magician_init(void)
  {
  	void __iomem *cpld;
  	int lcd_select;
  	int err;
  
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(magician_pin_config));
  	err = gpio_request_array(ARRAY_AND_SIZE(magician_global_gpios));
  	if (err)
  		pr_err("magician: Failed to request global GPIOs: %d\n", err);
  
  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  
  	pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup));
  
  	pxa_set_ficp_info(&magician_ficp_info);
  	pxa27x_set_i2c_power_info(&magician_i2c_power_info);
  	pxa_set_i2c_info(&i2c_info);
  
  	i2c_register_board_info(1,
  		ARRAY_AND_SIZE(magician_pwr_i2c_board_info));
  
  	gpiod_add_lookup_table(&magician_mci_gpio_table);
  	pxa_set_mci_info(&magician_mci_info);
  	pxa_set_ohci_info(&magician_ohci_info);
  	pxa_set_udc_info(&magician_udc_info);
  
  	/* Check LCD type we have */
  	cpld = ioremap(PXA_CS3_PHYS, 0x1000);
  	if (cpld) {
  		u8 board_id = __raw_readb(cpld + 0x14);
  
  		iounmap(cpld);
  		system_rev = board_id & 0x7;
  		lcd_select = board_id & 0x8;
  		pr_info("LCD type: %s\n", lcd_select ? "Samsung" : "Toppoly");
  		if (lcd_select && (system_rev < 3))
  			/* NOTICE valid LCD init sequence */
  			gpio_request_one(GPIO75_MAGICIAN_SAMSUNG_POWER,
  				GPIOF_OUT_INIT_LOW, "Samsung LCD Power");
  		pxa_set_fb_info(NULL,
  			lcd_select ? &samsung_info : &toppoly_info);
  	} else
  		pr_err("LCD detection: CPLD mapping failed\n");
  
  	pxa2xx_set_spi_info(2, &magician_spi_info);
  	spi_register_board_info(ARRAY_AND_SIZE(ads7846_spi_board_info));
  
  	regulator_register_always_on(0, "power", pwm_backlight_supply,
  		ARRAY_SIZE(pwm_backlight_supply), 5000000);
  
  	gpiod_add_lookup_table(&bq24022_gpiod_table);
  	gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
  	platform_add_devices(ARRAY_AND_SIZE(devices));
  }
  
  MACHINE_START(MAGICIAN, "HTC Magician")
  	.atag_offset	= 0x100,
  	.map_io		= pxa27x_map_io,
  	.nr_irqs	= MAGICIAN_NR_IRQS,
  	.init_irq	= pxa27x_init_irq,
  	.handle_irq	= pxa27x_handle_irq,
  	.init_machine	= magician_init,
  	.init_time	= pxa_timer_init,
  	.restart	= pxa_restart,
  MACHINE_END
  