text: // SPDX-License-Identifier: GPL-2.0-only
  /*
   * STMicroelectronics pressures driver
   *
   * Copyright 2013 STMicroelectronics Inc.
   *
   * Denis Ciocca <denis.ciocca@st.com>
   */
  
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/slab.h>
  #include <linux/acpi.h>
  #include <linux/i2c.h>
  #include <linux/iio/iio.h>
  
  #include <linux/iio/common/st_sensors.h>
  #include <linux/iio/common/st_sensors_i2c.h>
  #include "st_pressure.h"
  
  #ifdef CONFIG_OF
  static const struct of_device_id st_press_of_match[] = {
  	{
  		.compatible = "st,lps001wp-press",
  		.data = LPS001WP_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps25h-press",
  		.data = LPS25H_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps331ap-press",
  		.data = LPS331AP_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps22hb-press",
  		.data = LPS22HB_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps33hw",
  		.data = LPS33HW_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps35hw",
  		.data = LPS35HW_PRESS_DEV_NAME,
  	},
  	{
  		.compatible = "st,lps22hh",
  		.data = LPS22HH_PRESS_DEV_NAME,
  	},
  	{},
  };
  MODULE_DEVICE_TABLE(of, st_press_of_match);
  #else
  #define st_press_of_match NULL
  #endif
  
  #ifdef CONFIG_ACPI
  static const struct acpi_device_id st_press_acpi_match[] = {
  	{"SNO9210", LPS22HB},
  	{ },
  };
  MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
  #else
  #define st_press_acpi_match NULL
  #endif
  
  static const struct i2c_device_id st_press_id_table[] = {
  	{ LPS001WP_PRESS_DEV_NAME, LPS001WP },
  	{ LPS25H_PRESS_DEV_NAME,  LPS25H },
  	{ LPS331AP_PRESS_DEV_NAME, LPS331AP },
  	{ LPS22HB_PRESS_DEV_NAME, LPS22HB },
  	{ LPS33HW_PRESS_DEV_NAME, LPS33HW },
  	{ LPS35HW_PRESS_DEV_NAME, LPS35HW },
  	{ LPS22HH_PRESS_DEV_NAME, LPS22HH },
  	{},
  };
  MODULE_DEVICE_TABLE(i2c, st_press_id_table);
  
  static int st_press_i2c_probe(struct i2c_client *client,
  						const struct i2c_device_id *id)
  {
  	struct iio_dev *indio_dev;
  	struct st_sensor_data *press_data;
  	int ret;
  
  	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
  	if (!indio_dev)
  		return -ENOMEM;
  
  	press_data = iio_priv(indio_dev);
  
  	if (client->dev.of_node) {
  		st_sensors_of_name_probe(&client->dev, st_press_of_match,
  					 client->name, sizeof(client->name));
  	} else if (ACPI_HANDLE(&client->dev)) {
  		ret = st_sensors_match_acpi_device(&client->dev);
  		if ((ret < 0) || (ret >= ST_PRESS_MAX))
  			return -ENODEV;
  
  		strlcpy(client->name, st_press_id_table[ret].name,
  				sizeof(client->name));
  	} else if (!id)
  		return -ENODEV;
  
  	st_sensors_i2c_configure(indio_dev, client, press_data);
  
  	ret = st_press_common_probe(indio_dev);
  	if (ret < 0)
  		return ret;
  
  	return 0;
  }
  
  static int st_press_i2c_remove(struct i2c_client *client)
  {
  	st_press_common_remove(i2c_get_clientdata(client));
  
  	return 0;
  }
  
  static struct i2c_driver st_press_driver = {
  	.driver = {
  		.name = "st-press-i2c",
  		.of_match_table = of_match_ptr(st_press_of_match),
  		.acpi_match_table = ACPI_PTR(st_press_acpi_match),
  	},
  	.probe = st_press_i2c_probe,
  	.remove = st_press_i2c_remove,
  	.id_table = st_press_id_table,
  };
  module_i2c_driver(st_press_driver);
  
  MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
  MODULE_LICENSE("GPL v2");
  