drivers/iio/gyro/st_gyro_spi.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/spi/spi.h>
  15 #include <linux/iio/iio.h>
  16
  17 #include <linux/iio/common/st_sensors.h>
  18 #include <linux/iio/common/st_sensors_spi.h>
  19 #include "st_gyro.h"
  20
  21 static int st_gyro_spi_probe(struct spi_device *spi)
  22 {
  23         struct iio_dev *indio_dev;
  24         struct st_sensor_data *gdata;
  25         int err;
  26
  27         indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*gdata));
  28         if (!indio_dev)
  29                 return -ENOMEM;
  30
  31         gdata = iio_priv(indio_dev);
  32         gdata->dev = &spi->dev;
  33
  34         st_sensors_spi_configure(indio_dev, spi, gdata);
  35
  36         err = st_gyro_common_probe(indio_dev,
  37                                 (struct st_sensors_platform_data *)&gyro_pdata);
  38         if (err < 0)
  39                 return err;
  40
  41         return 0;
  42 }
  43
  44 static int st_gyro_spi_remove(struct spi_device *spi)
  45 {
  46         st_gyro_common_remove(spi_get_drvdata(spi));
  47
  48         return 0;
  49 }
  50
  51 static const struct spi_device_id st_gyro_id_table[] = {
  52         { L3G4200D_GYRO_DEV_NAME },
  53         { LSM330D_GYRO_DEV_NAME },
  54         { LSM330DL_GYRO_DEV_NAME },
  55         { LSM330DLC_GYRO_DEV_NAME },
  56         { L3GD20_GYRO_DEV_NAME },
  57         { L3G4IS_GYRO_DEV_NAME },
  58         { LSM330_GYRO_DEV_NAME },
  59         {},
  60 };
  61 MODULE_DEVICE_TABLE(spi, st_gyro_id_table);
  62
  63 static struct spi_driver st_gyro_driver = {
  64         .driver = {
  65                 .owner = THIS_MODULE,
  66                 .name = "st-gyro-spi",
  67         },
  68         .probe = st_gyro_spi_probe,
  69         .remove = st_gyro_spi_remove,
  70         .id_table = st_gyro_id_table,
  71 };
  72 module_spi_driver(st_gyro_driver);
  73
  74 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  75 MODULE_DESCRIPTION("STMicroelectronics gyroscopes spi driver");
  76 MODULE_LICENSE("GPL v2");