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 static int st_accel_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 *adata;
  26         int err;
  27
  28         indio_dev = iio_device_alloc(sizeof(*adata));
  29         if (indio_dev == NULL) {
  30                 err = -ENOMEM;
  31                 goto iio_device_alloc_error;
  32         }
  33
  34         adata = iio_priv(indio_dev);
  35         adata->dev = &client->dev;
  36
  37         st_sensors_i2c_configure(indio_dev, client, adata);
  38
  39         err = st_accel_common_probe(indio_dev);
  40         if (err < 0)
  41                 goto st_accel_common_probe_error;
  42
  43         return 0;
  44
  45 st_accel_common_probe_error:
  46         iio_device_free(indio_dev);
  47 iio_device_alloc_error:
  48         return err;
  49 }
  50
  51 static int st_accel_i2c_remove(struct i2c_client *client)
  52 {
  53         st_accel_common_remove(i2c_get_clientdata(client));
  54
  55         return 0;
  56 }
  57
  58 static const struct i2c_device_id st_accel_id_table[] = {
  59         { LSM303DLH_ACCEL_DEV_NAME },
  60         { LSM303DLHC_ACCEL_DEV_NAME },
  61         { LIS3DH_ACCEL_DEV_NAME },
  62         { LSM330D_ACCEL_DEV_NAME },
  63         { LSM330DL_ACCEL_DEV_NAME },
  64         { LSM330DLC_ACCEL_DEV_NAME },
  65         { LIS331DLH_ACCEL_DEV_NAME },
  66         { LSM303DL_ACCEL_DEV_NAME },
  67         { LSM303DLM_ACCEL_DEV_NAME },
  68         { LSM330_ACCEL_DEV_NAME },
  69         {},
  70 };
  71 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
  72
  73 static struct i2c_driver st_accel_driver = {
  74         .driver = {
  75                 .owner = THIS_MODULE,
  76                 .name = "st-accel-i2c",
  77         },
  78         .probe = st_accel_i2c_probe,
  79         .remove = st_accel_i2c_remove,
  80         .id_table = st_accel_id_table,
  81 };
  82 module_i2c_driver(st_accel_driver);
  83
  84 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  85 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
  86 MODULE_LICENSE("GPL v2");