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