LXR linux/drivers/iio/gyro/st_gyro

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * STMicroelectronics gyroscopes driver
   4 *
   5 * Copyright 2012-2013 STMicroelectronics Inc.
   6 *
   7 * Denis Ciocca <denis.ciocca@st.com>
   8 */
   9
  10#include <linux/kernel.h>
  11#include <linux/module.h>
  12#include <linux/slab.h>
  13#include <linux/spi/spi.h>
  14#include <linux/iio/iio.h>
  15
  16#include <linux/iio/common/st_sensors.h>
  17#include <linux/iio/common/st_sensors_spi.h>
  18#include "st_gyro.h"
  19
  20#ifdef CONFIG_OF
  21/*
  22 * For new single-chip sensors use <device_name> as compatible string.
  23 * For old single-chip devices keep <device_name>-gyro to maintain
  24 * compatibility
  25 */
  26static const struct of_device_id st_gyro_of_match[] = {
  27        {
  28                .compatible = "st,l3g4200d-gyro",
  29                .data = L3G4200D_GYRO_DEV_NAME,
  30        },
  31        {
  32                .compatible = "st,lsm330d-gyro",
  33                .data = LSM330D_GYRO_DEV_NAME,
  34        },
  35        {
  36                .compatible = "st,lsm330dl-gyro",
  37                .data = LSM330DL_GYRO_DEV_NAME,
  38        },
  39        {
  40                .compatible = "st,lsm330dlc-gyro",
  41                .data = LSM330DLC_GYRO_DEV_NAME,
  42        },
  43        {
  44                .compatible = "st,l3gd20-gyro",
  45                .data = L3GD20_GYRO_DEV_NAME,
  46        },
  47        {
  48                .compatible = "st,l3gd20h-gyro",
  49                .data = L3GD20H_GYRO_DEV_NAME,
  50        },
  51        {
  52                .compatible = "st,l3g4is-gyro",
  53                .data = L3G4IS_GYRO_DEV_NAME,
  54        },
  55        {
  56                .compatible = "st,lsm330-gyro",
  57                .data = LSM330_GYRO_DEV_NAME,
  58        },
  59        {
  60                .compatible = "st,lsm9ds0-gyro",
  61                .data = LSM9DS0_GYRO_DEV_NAME,
  62        },
  63        {},
  64};
  65MODULE_DEVICE_TABLE(of, st_gyro_of_match);
  66#else
  67#define st_gyro_of_match        NULL
  68#endif
  69
  70static int st_gyro_spi_probe(struct spi_device *spi)
  71{
  72        struct iio_dev *indio_dev;
  73        struct st_sensor_data *gdata;
  74        int err;
  75
  76        indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*gdata));
  77        if (!indio_dev)
  78                return -ENOMEM;
  79
  80        gdata = iio_priv(indio_dev);
  81
  82        st_sensors_of_name_probe(&spi->dev, st_gyro_of_match,
  83                                 spi->modalias, sizeof(spi->modalias));
  84        st_sensors_spi_configure(indio_dev, spi, gdata);
  85
  86        err = st_gyro_common_probe(indio_dev);
  87        if (err < 0)
  88                return err;
  89
  90        return 0;
  91}
  92
  93static int st_gyro_spi_remove(struct spi_device *spi)
  94{
  95        st_gyro_common_remove(spi_get_drvdata(spi));
  96
  97        return 0;
  98}
  99
 100static const struct spi_device_id st_gyro_id_table[] = {
 101        { L3G4200D_GYRO_DEV_NAME },
 102        { LSM330D_GYRO_DEV_NAME },
 103        { LSM330DL_GYRO_DEV_NAME },
 104        { LSM330DLC_GYRO_DEV_NAME },
 105        { L3GD20_GYRO_DEV_NAME },
 106        { L3GD20H_GYRO_DEV_NAME },
 107        { L3G4IS_GYRO_DEV_NAME },
 108        { LSM330_GYRO_DEV_NAME },
 109        { LSM9DS0_GYRO_DEV_NAME },
 110        {},
 111};
 112MODULE_DEVICE_TABLE(spi, st_gyro_id_table);
 113
 114static struct spi_driver st_gyro_driver = {
 115        .driver = {
 116                .name = "st-gyro-spi",
 117                .of_match_table = of_match_ptr(st_gyro_of_match),
 118        },
 119        .probe = st_gyro_spi_probe,
 120        .remove = st_gyro_spi_remove,
 121        .id_table = st_gyro_id_table,
 122};
 123module_spi_driver(st_gyro_driver);
 124
 125MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 126MODULE_DESCRIPTION("STMicroelectronics gyroscopes spi driver");
 127MODULE_LICENSE("GPL v2");
 128