LXR linux/drivers/iio/accel/st_accel

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * STMicroelectronics accelerometers 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_accel.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>-accel to maintain
  24 * compatibility
  25 */
  26static const struct of_device_id st_accel_of_match[] = {
  27        {
  28                /* An older compatible */
  29                .compatible = "st,lis302dl-spi",
  30                .data = LIS3LV02DL_ACCEL_DEV_NAME,
  31        },
  32        {
  33                .compatible = "st,lis3lv02dl-accel",
  34                .data = LIS3LV02DL_ACCEL_DEV_NAME,
  35        },
  36        {
  37                .compatible = "st,lis3dh-accel",
  38                .data = LIS3DH_ACCEL_DEV_NAME,
  39        },
  40        {
  41                .compatible = "st,lsm330d-accel",
  42                .data = LSM330D_ACCEL_DEV_NAME,
  43        },
  44        {
  45                .compatible = "st,lsm330dl-accel",
  46                .data = LSM330DL_ACCEL_DEV_NAME,
  47        },
  48        {
  49                .compatible = "st,lsm330dlc-accel",
  50                .data = LSM330DLC_ACCEL_DEV_NAME,
  51        },
  52        {
  53                .compatible = "st,lis331dlh-accel",
  54                .data = LIS331DLH_ACCEL_DEV_NAME,
  55        },
  56        {
  57                .compatible = "st,lsm330-accel",
  58                .data = LSM330_ACCEL_DEV_NAME,
  59        },
  60        {
  61                .compatible = "st,lsm303agr-accel",
  62                .data = LSM303AGR_ACCEL_DEV_NAME,
  63        },
  64        {
  65                .compatible = "st,lis2dh12-accel",
  66                .data = LIS2DH12_ACCEL_DEV_NAME,
  67        },
  68        {
  69                .compatible = "st,lis3l02dq",
  70                .data = LIS3L02DQ_ACCEL_DEV_NAME,
  71        },
  72        {
  73                .compatible = "st,lng2dm-accel",
  74                .data = LNG2DM_ACCEL_DEV_NAME,
  75        },
  76        {
  77                .compatible = "st,h3lis331dl-accel",
  78                .data = H3LIS331DL_ACCEL_DEV_NAME,
  79        },
  80        {
  81                .compatible = "st,lis331dl-accel",
  82                .data = LIS331DL_ACCEL_DEV_NAME,
  83        },
  84        {
  85                .compatible = "st,lis2dw12",
  86                .data = LIS2DW12_ACCEL_DEV_NAME,
  87        },
  88        {
  89                .compatible = "st,lis3dhh",
  90                .data = LIS3DHH_ACCEL_DEV_NAME,
  91        },
  92        {
  93                .compatible = "st,lis3de",
  94                .data = LIS3DE_ACCEL_DEV_NAME,
  95        },
  96        {}
  97};
  98MODULE_DEVICE_TABLE(of, st_accel_of_match);
  99#else
 100#define st_accel_of_match       NULL
 101#endif
 102
 103static int st_accel_spi_probe(struct spi_device *spi)
 104{
 105        struct iio_dev *indio_dev;
 106        struct st_sensor_data *adata;
 107        int err;
 108
 109        indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata));
 110        if (!indio_dev)
 111                return -ENOMEM;
 112
 113        adata = iio_priv(indio_dev);
 114
 115        st_sensors_of_name_probe(&spi->dev, st_accel_of_match,
 116                                 spi->modalias, sizeof(spi->modalias));
 117        st_sensors_spi_configure(indio_dev, spi, adata);
 118
 119        err = st_accel_common_probe(indio_dev);
 120        if (err < 0)
 121                return err;
 122
 123        return 0;
 124}
 125
 126static int st_accel_spi_remove(struct spi_device *spi)
 127{
 128        st_accel_common_remove(spi_get_drvdata(spi));
 129
 130        return 0;
 131}
 132
 133static const struct spi_device_id st_accel_id_table[] = {
 134        { LIS3DH_ACCEL_DEV_NAME },
 135        { LSM330D_ACCEL_DEV_NAME },
 136        { LSM330DL_ACCEL_DEV_NAME },
 137        { LSM330DLC_ACCEL_DEV_NAME },
 138        { LIS331DLH_ACCEL_DEV_NAME },
 139        { LSM330_ACCEL_DEV_NAME },
 140        { LSM303AGR_ACCEL_DEV_NAME },
 141        { LIS2DH12_ACCEL_DEV_NAME },
 142        { LIS3L02DQ_ACCEL_DEV_NAME },
 143        { LNG2DM_ACCEL_DEV_NAME },
 144        { H3LIS331DL_ACCEL_DEV_NAME },
 145        { LIS331DL_ACCEL_DEV_NAME },
 146        { LIS3LV02DL_ACCEL_DEV_NAME },
 147        { LIS2DW12_ACCEL_DEV_NAME },
 148        { LIS3DHH_ACCEL_DEV_NAME },
 149        { LIS3DE_ACCEL_DEV_NAME },
 150        {},
 151};
 152MODULE_DEVICE_TABLE(spi, st_accel_id_table);
 153
 154static struct spi_driver st_accel_driver = {
 155        .driver = {
 156                .name = "st-accel-spi",
 157                .of_match_table = of_match_ptr(st_accel_of_match),
 158        },
 159        .probe = st_accel_spi_probe,
 160        .remove = st_accel_spi_remove,
 161        .id_table = st_accel_id_table,
 162};
 163module_spi_driver(st_accel_driver);
 164
 165MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 166MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
 167MODULE_LICENSE("GPL v2");
 168