drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c

   1 /*
   2  * STMicroelectronics st_lsm6dsx i2c driver
   3  *
   4  * Copyright 2016 STMicroelectronics Inc.
   5  *
   6  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
   7  * Denis Ciocca <denis.ciocca@st.com>
   8  *
   9  * Licensed under the GPL-2.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/module.h>
  14 #include <linux/i2c.h>
  15 #include <linux/slab.h>
  16 #include <linux/of.h>
  17 #include <linux/regmap.h>
  18
  19 #include "st_lsm6dsx.h"
  20
  21 static const struct regmap_config st_lsm6dsx_i2c_regmap_config = {
  22         .reg_bits = 8,
  23         .val_bits = 8,
  24 };
  25
  26 static int st_lsm6dsx_i2c_probe(struct i2c_client *client,
  27                                 const struct i2c_device_id *id)
  28 {
  29         int hw_id = id->driver_data;
  30         struct regmap *regmap;
  31
  32         regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config);
  33         if (IS_ERR(regmap)) {
  34                 dev_err(&client->dev, "Failed to register i2c regmap %d\n",
  35                         (int)PTR_ERR(regmap));
  36                 return PTR_ERR(regmap);
  37         }
  38
  39         return st_lsm6dsx_probe(&client->dev, client->irq,
  40                                 hw_id, id->name, regmap);
  41 }
  42
  43 static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
  44         {
  45                 .compatible = "st,lsm6ds3",
  46                 .data = (void *)ST_LSM6DS3_ID,
  47         },
  48         {
  49                 .compatible = "st,lsm6ds3h",
  50                 .data = (void *)ST_LSM6DS3H_ID,
  51         },
  52         {
  53                 .compatible = "st,lsm6dsl",
  54                 .data = (void *)ST_LSM6DSL_ID,
  55         },
  56         {
  57                 .compatible = "st,lsm6dsm",
  58                 .data = (void *)ST_LSM6DSM_ID,
  59         },
  60         {
  61                 .compatible = "st,ism330dlc",
  62                 .data = (void *)ST_ISM330DLC_ID,
  63         },
  64         {
  65                 .compatible = "st,lsm6dso",
  66                 .data = (void *)ST_LSM6DSO_ID,
  67         },
  68         {
  69                 .compatible = "st,asm330lhh",
  70                 .data = (void *)ST_ASM330LHH_ID,
  71         },
  72         {
  73                 .compatible = "st,lsm6dsox",
  74                 .data = (void *)ST_LSM6DSOX_ID,
  75         },
  76         {
  77                 .compatible = "st,lsm6dsr",
  78                 .data = (void *)ST_LSM6DSR_ID,
  79         },
  80         {},
  81 };
  82 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
  83
  84 static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
  85         { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
  86         { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
  87         { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
  88         { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
  89         { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
  90         { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
  91         { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
  92         { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
  93         { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
  94         {},
  95 };
  96 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);
  97
  98 static struct i2c_driver st_lsm6dsx_driver = {
  99         .driver = {
 100                 .name = "st_lsm6dsx_i2c",
 101                 .pm = &st_lsm6dsx_pm_ops,
 102                 .of_match_table = of_match_ptr(st_lsm6dsx_i2c_of_match),
 103         },
 104         .probe = st_lsm6dsx_i2c_probe,
 105         .id_table = st_lsm6dsx_i2c_id_table,
 106 };
 107 module_i2c_driver(st_lsm6dsx_driver);
 108
 109 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
 110 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 111 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i2c driver");
 112 MODULE_LICENSE("GPL v2");