drivers/iio/gyro/st_gyro_i2c.c

   1 /*
   2  * STMicroelectronics gyroscopes 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_gyro.h"
  20
  21 static int st_gyro_i2c_probe(struct i2c_client *client,
  22                                                 const struct i2c_device_id *id)
  23 {
  24         struct iio_dev *indio_dev;
  25         struct st_sensor_data *gdata;
  26         int err;
  27
  28         indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
  29         if (!indio_dev)
  30                 return -ENOMEM;
  31
  32         gdata = iio_priv(indio_dev);
  33         gdata->dev = &client->dev;
  34
  35         st_sensors_i2c_configure(indio_dev, client, gdata);
  36
  37         err = st_gyro_common_probe(indio_dev,
  38                                 (struct st_sensors_platform_data *)&gyro_pdata);
  39         if (err < 0)
  40                 return err;
  41
  42         return 0;
  43 }
  44
  45 static int st_gyro_i2c_remove(struct i2c_client *client)
  46 {
  47         st_gyro_common_remove(i2c_get_clientdata(client));
  48
  49         return 0;
  50 }
  51
  52 static const struct i2c_device_id st_gyro_id_table[] = {
  53         { L3G4200D_GYRO_DEV_NAME },
  54         { LSM330D_GYRO_DEV_NAME },
  55         { LSM330DL_GYRO_DEV_NAME },
  56         { LSM330DLC_GYRO_DEV_NAME },
  57         { L3GD20_GYRO_DEV_NAME },
  58         { L3GD20H_GYRO_DEV_NAME },
  59         { L3G4IS_GYRO_DEV_NAME },
  60         { LSM330_GYRO_DEV_NAME },
  61         {},
  62 };
  63 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
  64
  65 static struct i2c_driver st_gyro_driver = {
  66         .driver = {
  67                 .owner = THIS_MODULE,
  68                 .name = "st-gyro-i2c",
  69         },
  70         .probe = st_gyro_i2c_probe,
  71         .remove = st_gyro_i2c_remove,
  72         .id_table = st_gyro_id_table,
  73 };
  74 module_i2c_driver(st_gyro_driver);
  75
  76 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  77 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
  78 MODULE_LICENSE("GPL v2");