drivers/iio/accel/st_accel_i2c.c

   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/mod_devicetable.h>
  13 #include <linux/i2c.h>
  14 #include <linux/iio/iio.h>
  15
  16 #include <linux/iio/common/st_sensors_i2c.h>
  17 #include "st_accel.h"
  18
  19 static const struct of_device_id st_accel_of_match[] = {
  20         {
  21                 /* An older compatible */
  22                 .compatible = "st,lis3lv02d",
  23                 .data = LIS3LV02DL_ACCEL_DEV_NAME,
  24         },
  25         {
  26                 .compatible = "st,lis3lv02dl-accel",
  27                 .data = LIS3LV02DL_ACCEL_DEV_NAME,
  28         },
  29         {
  30                 .compatible = "st,lsm303dlh-accel",
  31                 .data = LSM303DLH_ACCEL_DEV_NAME,
  32         },
  33         {
  34                 .compatible = "st,lsm303dlhc-accel",
  35                 .data = LSM303DLHC_ACCEL_DEV_NAME,
  36         },
  37         {
  38                 .compatible = "st,lis3dh-accel",
  39                 .data = LIS3DH_ACCEL_DEV_NAME,
  40         },
  41         {
  42                 .compatible = "st,lsm330d-accel",
  43                 .data = LSM330D_ACCEL_DEV_NAME,
  44         },
  45         {
  46                 .compatible = "st,lsm330dl-accel",
  47                 .data = LSM330DL_ACCEL_DEV_NAME,
  48         },
  49         {
  50                 .compatible = "st,lsm330dlc-accel",
  51                 .data = LSM330DLC_ACCEL_DEV_NAME,
  52         },
  53         {
  54                 .compatible = "st,lis331dl-accel",
  55                 .data = LIS331DL_ACCEL_DEV_NAME,
  56         },
  57         {
  58                 .compatible = "st,lis331dlh-accel",
  59                 .data = LIS331DLH_ACCEL_DEV_NAME,
  60         },
  61         {
  62                 .compatible = "st,lsm303dl-accel",
  63                 .data = LSM303DL_ACCEL_DEV_NAME,
  64         },
  65         {
  66                 .compatible = "st,lsm303dlm-accel",
  67                 .data = LSM303DLM_ACCEL_DEV_NAME,
  68         },
  69         {
  70                 .compatible = "st,lsm330-accel",
  71                 .data = LSM330_ACCEL_DEV_NAME,
  72         },
  73         {
  74                 .compatible = "st,lsm303agr-accel",
  75                 .data = LSM303AGR_ACCEL_DEV_NAME,
  76         },
  77         {
  78                 .compatible = "st,lis2dh12-accel",
  79                 .data = LIS2DH12_ACCEL_DEV_NAME,
  80         },
  81         {
  82                 .compatible = "st,h3lis331dl-accel",
  83                 .data = H3LIS331DL_ACCEL_DEV_NAME,
  84         },
  85         {
  86                 .compatible = "st,lis3l02dq",
  87                 .data = LIS3L02DQ_ACCEL_DEV_NAME,
  88         },
  89         {
  90                 .compatible = "st,lng2dm-accel",
  91                 .data = LNG2DM_ACCEL_DEV_NAME,
  92         },
  93         {
  94                 .compatible = "st,lis2dw12",
  95                 .data = LIS2DW12_ACCEL_DEV_NAME,
  96         },
  97         {
  98                 .compatible = "st,lis3de",
  99                 .data = LIS3DE_ACCEL_DEV_NAME,
 100         },
 101         {
 102                 .compatible = "st,lis2de12",
 103                 .data = LIS2DE12_ACCEL_DEV_NAME,
 104         },
 105         {
 106                 .compatible = "st,lis2ds12",
 107                 .data = LIS2DS12_ACCEL_DEV_NAME,
 108         },
 109         {
 110                 .compatible = "st,lis2hh12",
 111                 .data = LIS2HH12_ACCEL_DEV_NAME,
 112         },
 113         {
 114                 .compatible = "st,lis302dl",
 115                 .data = LIS302DL_ACCEL_DEV_NAME,
 116         },
 117         {
 118                 .compatible = "st,lsm303c-accel",
 119                 .data = LSM303C_ACCEL_DEV_NAME,
 120         },
 121         {
 122                 .compatible = "silan,sc7a20",
 123                 .data = SC7A20_ACCEL_DEV_NAME,
 124         },
 125         {
 126                 .compatible = "st,iis328dq",
 127                 .data = IIS328DQ_ACCEL_DEV_NAME,
 128         },
 129         {},
 130 };
 131 MODULE_DEVICE_TABLE(of, st_accel_of_match);
 132
 133 static const struct acpi_device_id st_accel_acpi_match[] = {
 134         {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
 135         {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
 136         { },
 137 };
 138 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
 139
 140 static const struct i2c_device_id st_accel_id_table[] = {
 141         { LSM303DLH_ACCEL_DEV_NAME },
 142         { LSM303DLHC_ACCEL_DEV_NAME },
 143         { LIS3DH_ACCEL_DEV_NAME },
 144         { LSM330D_ACCEL_DEV_NAME },
 145         { LSM330DL_ACCEL_DEV_NAME },
 146         { LSM330DLC_ACCEL_DEV_NAME },
 147         { LIS331DLH_ACCEL_DEV_NAME },
 148         { LSM303DL_ACCEL_DEV_NAME },
 149         { LSM303DLM_ACCEL_DEV_NAME },
 150         { LSM330_ACCEL_DEV_NAME },
 151         { LSM303AGR_ACCEL_DEV_NAME },
 152         { LIS2DH12_ACCEL_DEV_NAME },
 153         { LIS3L02DQ_ACCEL_DEV_NAME },
 154         { LNG2DM_ACCEL_DEV_NAME },
 155         { H3LIS331DL_ACCEL_DEV_NAME },
 156         { LIS331DL_ACCEL_DEV_NAME },
 157         { LIS3LV02DL_ACCEL_DEV_NAME },
 158         { LIS2DW12_ACCEL_DEV_NAME },
 159         { LIS3DE_ACCEL_DEV_NAME },
 160         { LIS2DE12_ACCEL_DEV_NAME },
 161         { LIS2DS12_ACCEL_DEV_NAME },
 162         { LIS2HH12_ACCEL_DEV_NAME },
 163         { LIS302DL_ACCEL_DEV_NAME },
 164         { LSM303C_ACCEL_DEV_NAME },
 165         { SC7A20_ACCEL_DEV_NAME },
 166         { IIS328DQ_ACCEL_DEV_NAME },
 167         {},
 168 };
 169 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
 170
 171 static int st_accel_i2c_probe(struct i2c_client *client)
 172 {
 173         const struct st_sensor_settings *settings;
 174         struct st_sensor_data *adata;
 175         struct iio_dev *indio_dev;
 176         int ret;
 177
 178         st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
 179
 180         settings = st_accel_get_settings(client->name);
 181         if (!settings) {
 182                 dev_err(&client->dev, "device name %s not recognized.\n",
 183                         client->name);
 184                 return -ENODEV;
 185         }
 186
 187         indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
 188         if (!indio_dev)
 189                 return -ENOMEM;
 190
 191         adata = iio_priv(indio_dev);
 192         adata->sensor_settings = (struct st_sensor_settings *)settings;
 193
 194         ret = st_sensors_i2c_configure(indio_dev, client);
 195         if (ret < 0)
 196                 return ret;
 197
 198         ret = st_sensors_power_enable(indio_dev);
 199         if (ret)
 200                 return ret;
 201
 202         return st_accel_common_probe(indio_dev);
 203 }
 204
 205 static struct i2c_driver st_accel_driver = {
 206         .driver = {
 207                 .name = "st-accel-i2c",
 208                 .of_match_table = st_accel_of_match,
 209                 .acpi_match_table = st_accel_acpi_match,
 210         },
 211         .probe = st_accel_i2c_probe,
 212         .id_table = st_accel_id_table,
 213 };
 214 module_i2c_driver(st_accel_driver);
 215
 216 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 217 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
 218 MODULE_LICENSE("GPL v2");
 219 MODULE_IMPORT_NS("IIO_ST_SENSORS");