kernel/drivers/iio/accel/st_accel_i2c.c

   1 /*
   2  * STMicroelectronics accelerometers driver
   3  *
   4  * Copyright 2012-2013 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_accel.h"
  20
  21 #ifdef CONFIG_OF
  22 static const struct of_device_id st_accel_of_match[] = {
  23         {
  24                 .compatible = "st,lis3lv02dl-accel",
  25                 .data = LIS3LV02DL_ACCEL_DEV_NAME,
  26         },
  27         {
  28                 .compatible = "st,lsm303dlh-accel",
  29                 .data = LSM303DLH_ACCEL_DEV_NAME,
  30         },
  31         {
  32                 .compatible = "st,lsm303dlhc-accel",
  33                 .data = LSM303DLHC_ACCEL_DEV_NAME,
  34         },
  35         {
  36                 .compatible = "st,lis3dh-accel",
  37                 .data = LIS3DH_ACCEL_DEV_NAME,
  38         },
  39         {
  40                 .compatible = "st,lsm330d-accel",
  41                 .data = LSM330D_ACCEL_DEV_NAME,
  42         },
  43         {
  44                 .compatible = "st,lsm330dl-accel",
  45                 .data = LSM330DL_ACCEL_DEV_NAME,
  46         },
  47         {
  48                 .compatible = "st,lsm330dlc-accel",
  49                 .data = LSM330DLC_ACCEL_DEV_NAME,
  50         },
  51         {
  52                 .compatible = "st,lis331dl-accel",
  53                 .data = LIS331DL_ACCEL_DEV_NAME,
  54         },
  55         {
  56                 .compatible = "st,lis331dlh-accel",
  57                 .data = LIS331DLH_ACCEL_DEV_NAME,
  58         },
  59         {
  60                 .compatible = "st,lsm303dl-accel",
  61                 .data = LSM303DL_ACCEL_DEV_NAME,
  62         },
  63         {
  64                 .compatible = "st,lsm303dlm-accel",
  65                 .data = LSM303DLM_ACCEL_DEV_NAME,
  66         },
  67         {
  68                 .compatible = "st,lsm330-accel",
  69                 .data = LSM330_ACCEL_DEV_NAME,
  70         },
  71         {
  72                 .compatible = "st,lsm303agr-accel",
  73                 .data = LSM303AGR_ACCEL_DEV_NAME,
  74         },
  75         {},
  76 };
  77 MODULE_DEVICE_TABLE(of, st_accel_of_match);
  78 #else
  79 #define st_accel_of_match NULL
  80 #endif
  81
  82 static int st_accel_i2c_probe(struct i2c_client *client,
  83                                                 const struct i2c_device_id *id)
  84 {
  85         struct iio_dev *indio_dev;
  86         struct st_sensor_data *adata;
  87         int err;
  88
  89         indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
  90         if (!indio_dev)
  91                 return -ENOMEM;
  92
  93         adata = iio_priv(indio_dev);
  94         st_sensors_of_i2c_probe(client, st_accel_of_match);
  95
  96         st_sensors_i2c_configure(indio_dev, client, adata);
  97
  98         err = st_accel_common_probe(indio_dev);
  99         if (err < 0)
 100                 return err;
 101
 102         return 0;
 103 }
 104
 105 static int st_accel_i2c_remove(struct i2c_client *client)
 106 {
 107         st_accel_common_remove(i2c_get_clientdata(client));
 108
 109         return 0;
 110 }
 111
 112 static const struct i2c_device_id st_accel_id_table[] = {
 113         { LSM303DLH_ACCEL_DEV_NAME },
 114         { LSM303DLHC_ACCEL_DEV_NAME },
 115         { LIS3DH_ACCEL_DEV_NAME },
 116         { LSM330D_ACCEL_DEV_NAME },
 117         { LSM330DL_ACCEL_DEV_NAME },
 118         { LSM330DLC_ACCEL_DEV_NAME },
 119         { LIS331DLH_ACCEL_DEV_NAME },
 120         { LSM303DL_ACCEL_DEV_NAME },
 121         { LSM303DLM_ACCEL_DEV_NAME },
 122         { LSM330_ACCEL_DEV_NAME },
 123         { LSM303AGR_ACCEL_DEV_NAME },
 124         {},
 125 };
 126 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
 127
 128 static struct i2c_driver st_accel_driver = {
 129         .driver = {
 130                 .name = "st-accel-i2c",
 131                 .of_match_table = of_match_ptr(st_accel_of_match),
 132         },
 133         .probe = st_accel_i2c_probe,
 134         .remove = st_accel_i2c_remove,
 135         .id_table = st_accel_id_table,
 136 };
 137 module_i2c_driver(st_accel_driver);
 138
 139 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 140 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
 141 MODULE_LICENSE("GPL v2");