LXR linux/drivers/iio/magnetometer/st_magn

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * STMicroelectronics magnetometers driver
   4 *
   5 * Copyright 2012-2013 STMicroelectronics Inc.
   6 *
   7 * Denis Ciocca <denis.ciocca@st.com>
   8 */
   9
  10#include <linux/kernel.h>
  11#include <linux/module.h>
  12#include <linux/slab.h>
  13#include <linux/i2c.h>
  14#include <linux/iio/iio.h>
  15
  16#include <linux/iio/common/st_sensors.h>
  17#include <linux/iio/common/st_sensors_i2c.h>
  18#include "st_magn.h"
  19
  20#ifdef CONFIG_OF
  21static const struct of_device_id st_magn_of_match[] = {
  22        {
  23                .compatible = "st,lsm303dlh-magn",
  24                .data = LSM303DLH_MAGN_DEV_NAME,
  25        },
  26        {
  27                .compatible = "st,lsm303dlhc-magn",
  28                .data = LSM303DLHC_MAGN_DEV_NAME,
  29        },
  30        {
  31                .compatible = "st,lsm303dlm-magn",
  32                .data = LSM303DLM_MAGN_DEV_NAME,
  33        },
  34        {
  35                .compatible = "st,lis3mdl-magn",
  36                .data = LIS3MDL_MAGN_DEV_NAME,
  37        },
  38        {
  39                .compatible = "st,lsm303agr-magn",
  40                .data = LSM303AGR_MAGN_DEV_NAME,
  41        },
  42        {
  43                .compatible = "st,lis2mdl",
  44                .data = LIS2MDL_MAGN_DEV_NAME,
  45        },
  46        {
  47                .compatible = "st,lsm9ds1-magn",
  48                .data = LSM9DS1_MAGN_DEV_NAME,
  49        },
  50        {},
  51};
  52MODULE_DEVICE_TABLE(of, st_magn_of_match);
  53#else
  54#define st_magn_of_match NULL
  55#endif
  56
  57static int st_magn_i2c_probe(struct i2c_client *client,
  58                                                const struct i2c_device_id *id)
  59{
  60        struct iio_dev *indio_dev;
  61        struct st_sensor_data *mdata;
  62        int err;
  63
  64        indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*mdata));
  65        if (!indio_dev)
  66                return -ENOMEM;
  67
  68        mdata = iio_priv(indio_dev);
  69        st_sensors_of_name_probe(&client->dev, st_magn_of_match,
  70                                 client->name, sizeof(client->name));
  71
  72        st_sensors_i2c_configure(indio_dev, client, mdata);
  73
  74        err = st_magn_common_probe(indio_dev);
  75        if (err < 0)
  76                return err;
  77
  78        return 0;
  79}
  80
  81static int st_magn_i2c_remove(struct i2c_client *client)
  82{
  83        struct iio_dev *indio_dev = i2c_get_clientdata(client);
  84        st_magn_common_remove(indio_dev);
  85
  86        return 0;
  87}
  88
  89static const struct i2c_device_id st_magn_id_table[] = {
  90        { LSM303DLH_MAGN_DEV_NAME },
  91        { LSM303DLHC_MAGN_DEV_NAME },
  92        { LSM303DLM_MAGN_DEV_NAME },
  93        { LIS3MDL_MAGN_DEV_NAME },
  94        { LSM303AGR_MAGN_DEV_NAME },
  95        { LIS2MDL_MAGN_DEV_NAME },
  96        { LSM9DS1_MAGN_DEV_NAME },
  97        {},
  98};
  99MODULE_DEVICE_TABLE(i2c, st_magn_id_table);
 100
 101static struct i2c_driver st_magn_driver = {
 102        .driver = {
 103                .name = "st-magn-i2c",
 104                .of_match_table = of_match_ptr(st_magn_of_match),
 105        },
 106        .probe = st_magn_i2c_probe,
 107        .remove = st_magn_i2c_remove,
 108        .id_table = st_magn_id_table,
 109};
 110module_i2c_driver(st_magn_driver);
 111
 112MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 113MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");
 114MODULE_LICENSE("GPL v2");
 115