linux/drivers/iio/accel/st_accel_i2c.c
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   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/acpi.h>
  14#include <linux/i2c.h>
  15#include <linux/iio/iio.h>
  16#include <linux/property.h>
  17
  18#include <linux/iio/common/st_sensors_i2c.h>
  19#include "st_accel.h"
  20
  21static const struct of_device_id st_accel_of_match[] = {
  22        {
  23                /* An older compatible */
  24                .compatible = "st,lis3lv02d",
  25                .data = LIS3LV02DL_ACCEL_DEV_NAME,
  26        },
  27        {
  28                .compatible = "st,lis3lv02dl-accel",
  29                .data = LIS3LV02DL_ACCEL_DEV_NAME,
  30        },
  31        {
  32                .compatible = "st,lsm303dlh-accel",
  33                .data = LSM303DLH_ACCEL_DEV_NAME,
  34        },
  35        {
  36                .compatible = "st,lsm303dlhc-accel",
  37                .data = LSM303DLHC_ACCEL_DEV_NAME,
  38        },
  39        {
  40                .compatible = "st,lis3dh-accel",
  41                .data = LIS3DH_ACCEL_DEV_NAME,
  42        },
  43        {
  44                .compatible = "st,lsm330d-accel",
  45                .data = LSM330D_ACCEL_DEV_NAME,
  46        },
  47        {
  48                .compatible = "st,lsm330dl-accel",
  49                .data = LSM330DL_ACCEL_DEV_NAME,
  50        },
  51        {
  52                .compatible = "st,lsm330dlc-accel",
  53                .data = LSM330DLC_ACCEL_DEV_NAME,
  54        },
  55        {
  56                .compatible = "st,lis331dl-accel",
  57                .data = LIS331DL_ACCEL_DEV_NAME,
  58        },
  59        {
  60                .compatible = "st,lis331dlh-accel",
  61                .data = LIS331DLH_ACCEL_DEV_NAME,
  62        },
  63        {
  64                .compatible = "st,lsm303dl-accel",
  65                .data = LSM303DL_ACCEL_DEV_NAME,
  66        },
  67        {
  68                .compatible = "st,lsm303dlm-accel",
  69                .data = LSM303DLM_ACCEL_DEV_NAME,
  70        },
  71        {
  72                .compatible = "st,lsm330-accel",
  73                .data = LSM330_ACCEL_DEV_NAME,
  74        },
  75        {
  76                .compatible = "st,lsm303agr-accel",
  77                .data = LSM303AGR_ACCEL_DEV_NAME,
  78        },
  79        {
  80                .compatible = "st,lis2dh12-accel",
  81                .data = LIS2DH12_ACCEL_DEV_NAME,
  82        },
  83        {
  84                .compatible = "st,h3lis331dl-accel",
  85                .data = H3LIS331DL_ACCEL_DEV_NAME,
  86        },
  87        {
  88                .compatible = "st,lis3l02dq",
  89                .data = LIS3L02DQ_ACCEL_DEV_NAME,
  90        },
  91        {
  92                .compatible = "st,lng2dm-accel",
  93                .data = LNG2DM_ACCEL_DEV_NAME,
  94        },
  95        {
  96                .compatible = "st,lis2dw12",
  97                .data = LIS2DW12_ACCEL_DEV_NAME,
  98        },
  99        {
 100                .compatible = "st,lis3de",
 101                .data = LIS3DE_ACCEL_DEV_NAME,
 102        },
 103        {
 104                .compatible = "st,lis2de12",
 105                .data = LIS2DE12_ACCEL_DEV_NAME,
 106        },
 107        {
 108                .compatible = "st,lis2hh12",
 109                .data = LIS2HH12_ACCEL_DEV_NAME,
 110        },
 111        {},
 112};
 113MODULE_DEVICE_TABLE(of, st_accel_of_match);
 114
 115#ifdef CONFIG_ACPI
 116static const struct acpi_device_id st_accel_acpi_match[] = {
 117        {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
 118        {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
 119        { },
 120};
 121MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
 122#endif
 123
 124static const struct i2c_device_id st_accel_id_table[] = {
 125        { LSM303DLH_ACCEL_DEV_NAME },
 126        { LSM303DLHC_ACCEL_DEV_NAME },
 127        { LIS3DH_ACCEL_DEV_NAME },
 128        { LSM330D_ACCEL_DEV_NAME },
 129        { LSM330DL_ACCEL_DEV_NAME },
 130        { LSM330DLC_ACCEL_DEV_NAME },
 131        { LIS331DLH_ACCEL_DEV_NAME },
 132        { LSM303DL_ACCEL_DEV_NAME },
 133        { LSM303DLM_ACCEL_DEV_NAME },
 134        { LSM330_ACCEL_DEV_NAME },
 135        { LSM303AGR_ACCEL_DEV_NAME },
 136        { LIS2DH12_ACCEL_DEV_NAME },
 137        { LIS3L02DQ_ACCEL_DEV_NAME },
 138        { LNG2DM_ACCEL_DEV_NAME },
 139        { H3LIS331DL_ACCEL_DEV_NAME },
 140        { LIS331DL_ACCEL_DEV_NAME },
 141        { LIS3LV02DL_ACCEL_DEV_NAME },
 142        { LIS2DW12_ACCEL_DEV_NAME },
 143        { LIS3DE_ACCEL_DEV_NAME },
 144        { LIS2DE12_ACCEL_DEV_NAME },
 145        { LIS2HH12_ACCEL_DEV_NAME },
 146        {},
 147};
 148MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
 149
 150static int st_accel_i2c_probe(struct i2c_client *client)
 151{
 152        const struct st_sensor_settings *settings;
 153        struct st_sensor_data *adata;
 154        struct iio_dev *indio_dev;
 155        int ret;
 156
 157        st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
 158
 159        settings = st_accel_get_settings(client->name);
 160        if (!settings) {
 161                dev_err(&client->dev, "device name %s not recognized.\n",
 162                        client->name);
 163                return -ENODEV;
 164        }
 165
 166        indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
 167        if (!indio_dev)
 168                return -ENOMEM;
 169
 170        adata = iio_priv(indio_dev);
 171        adata->sensor_settings = (struct st_sensor_settings *)settings;
 172
 173        ret = st_sensors_i2c_configure(indio_dev, client);
 174        if (ret < 0)
 175                return ret;
 176
 177        ret = st_accel_common_probe(indio_dev);
 178        if (ret < 0)
 179                return ret;
 180
 181        return 0;
 182}
 183
 184static int st_accel_i2c_remove(struct i2c_client *client)
 185{
 186        st_accel_common_remove(i2c_get_clientdata(client));
 187
 188        return 0;
 189}
 190
 191static struct i2c_driver st_accel_driver = {
 192        .driver = {
 193                .name = "st-accel-i2c",
 194                .of_match_table = st_accel_of_match,
 195                .acpi_match_table = ACPI_PTR(st_accel_acpi_match),
 196        },
 197        .probe_new = st_accel_i2c_probe,
 198        .remove = st_accel_i2c_remove,
 199        .id_table = st_accel_id_table,
 200};
 201module_i2c_driver(st_accel_driver);
 202
 203MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 204MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
 205MODULE_LICENSE("GPL v2");
 206