LXR linux/drivers/iio/pressure/st_pressure

   1/*
   2 * STMicroelectronics pressures driver
   3 *
   4 * Copyright 2013 STMicroelectronics Inc.
   5 *
   6 * Denis Ciocca <denis.ciocca@st.com>
   7 *
   8 * Licensed under the GPL-2.
   9 */
  10
  11#include <linux/kernel.h>
  12#include <linux/module.h>
  13#include <linux/slab.h>
  14#include <linux/i2c.h>
  15#include <linux/iio/iio.h>
  16
  17#include <linux/iio/common/st_sensors.h>
  18#include <linux/iio/common/st_sensors_i2c.h>
  19#include "st_pressure.h"
  20
  21#ifdef CONFIG_OF
  22static const struct of_device_id st_press_of_match[] = {
  23        {
  24                .compatible = "st,lps001wp-press",
  25                .data = LPS001WP_PRESS_DEV_NAME,
  26        },
  27        {
  28                .compatible = "st,lps25h-press",
  29                .data = LPS25H_PRESS_DEV_NAME,
  30        },
  31        {
  32                .compatible = "st,lps331ap-press",
  33                .data = LPS331AP_PRESS_DEV_NAME,
  34        },
  35        {},
  36};
  37MODULE_DEVICE_TABLE(of, st_press_of_match);
  38#else
  39#define st_press_of_match NULL
  40#endif
  41
  42static int st_press_i2c_probe(struct i2c_client *client,
  43                                                const struct i2c_device_id *id)
  44{
  45        struct iio_dev *indio_dev;
  46        struct st_sensor_data *pdata;
  47        int err;
  48
  49        indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*pdata));
  50        if (!indio_dev)
  51                return -ENOMEM;
  52
  53        pdata = iio_priv(indio_dev);
  54        pdata->dev = &client->dev;
  55        st_sensors_of_i2c_probe(client, st_press_of_match);
  56
  57        st_sensors_i2c_configure(indio_dev, client, pdata);
  58
  59        err = st_press_common_probe(indio_dev, client->dev.platform_data);
  60        if (err < 0)
  61                return err;
  62
  63        return 0;
  64}
  65
  66static int st_press_i2c_remove(struct i2c_client *client)
  67{
  68        st_press_common_remove(i2c_get_clientdata(client));
  69
  70        return 0;
  71}
  72
  73static const struct i2c_device_id st_press_id_table[] = {
  74        { LPS001WP_PRESS_DEV_NAME },
  75        { LPS25H_PRESS_DEV_NAME },
  76        { LPS331AP_PRESS_DEV_NAME },
  77        {},
  78};
  79MODULE_DEVICE_TABLE(i2c, st_press_id_table);
  80
  81static struct i2c_driver st_press_driver = {
  82        .driver = {
  83                .owner = THIS_MODULE,
  84                .name = "st-press-i2c",
  85                .of_match_table = of_match_ptr(st_press_of_match),
  86        },
  87        .probe = st_press_i2c_probe,
  88        .remove = st_press_i2c_remove,
  89        .id_table = st_press_id_table,
  90};
  91module_i2c_driver(st_press_driver);
  92
  93MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  94MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
  95MODULE_LICENSE("GPL v2");
  96