LXR linux/drivers/iio/accel/st_accel

   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/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_accel.h"
  20
  21static int st_accel_spi_probe(struct spi_device *spi)
  22{
  23        struct iio_dev *indio_dev;
  24        struct st_sensor_data *adata;
  25        int err;
  26
  27        indio_dev = iio_device_alloc(sizeof(*adata));
  28        if (indio_dev == NULL) {
  29                err = -ENOMEM;
  30                goto iio_device_alloc_error;
  31        }
  32
  33        adata = iio_priv(indio_dev);
  34        adata->dev = &spi->dev;
  35
  36        st_sensors_spi_configure(indio_dev, spi, adata);
  37
  38        err = st_accel_common_probe(indio_dev);
  39        if (err < 0)
  40                goto st_accel_common_probe_error;
  41
  42        return 0;
  43
  44st_accel_common_probe_error:
  45        iio_device_free(indio_dev);
  46iio_device_alloc_error:
  47        return err;
  48}
  49
  50static int st_accel_spi_remove(struct spi_device *spi)
  51{
  52        st_accel_common_remove(spi_get_drvdata(spi));
  53
  54        return 0;
  55}
  56
  57static const struct spi_device_id st_accel_id_table[] = {
  58        { LSM303DLH_ACCEL_DEV_NAME },
  59        { LSM303DLHC_ACCEL_DEV_NAME },
  60        { LIS3DH_ACCEL_DEV_NAME },
  61        { LSM330D_ACCEL_DEV_NAME },
  62        { LSM330DL_ACCEL_DEV_NAME },
  63        { LSM330DLC_ACCEL_DEV_NAME },
  64        { LIS331DLH_ACCEL_DEV_NAME },
  65        { LSM303DL_ACCEL_DEV_NAME },
  66        { LSM303DLM_ACCEL_DEV_NAME },
  67        { LSM330_ACCEL_DEV_NAME },
  68        {},
  69};
  70MODULE_DEVICE_TABLE(spi, st_accel_id_table);
  71
  72static struct spi_driver st_accel_driver = {
  73        .driver = {
  74                .owner = THIS_MODULE,
  75                .name = "st-accel-spi",
  76        },
  77        .probe = st_accel_spi_probe,
  78        .remove = st_accel_spi_remove,
  79        .id_table = st_accel_id_table,
  80};
  81module_spi_driver(st_accel_driver);
  82
  83MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  84MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
  85MODULE_LICENSE("GPL v2");
  86