drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * STMicroelectronics st_lsm6dsx i2c driver
   4  *
   5  * Copyright 2016 STMicroelectronics Inc.
   6  *
   7  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
   8  * Denis Ciocca <denis.ciocca@st.com>
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/module.h>
  13 #include <linux/i2c.h>
  14 #include <linux/slab.h>
  15 #include <linux/regmap.h>
  16
  17 #include "st_lsm6dsx.h"
  18
  19 static const struct regmap_config st_lsm6dsx_i2c_regmap_config = {
  20         .reg_bits = 8,
  21         .val_bits = 8,
  22 };
  23
  24 static int st_lsm6dsx_i2c_probe(struct i2c_client *client)
  25 {
  26         int hw_id;
  27         struct regmap *regmap;
  28
  29         hw_id = (kernel_ulong_t)device_get_match_data(&client->dev);
  30         if (!hw_id)
  31                 hw_id = i2c_client_get_device_id(client)->driver_data;
  32         if (!hw_id)
  33                 return -EINVAL;
  34
  35         regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config);
  36         if (IS_ERR(regmap)) {
  37                 dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap));
  38                 return PTR_ERR(regmap);
  39         }
  40
  41         return st_lsm6dsx_probe(&client->dev, client->irq, hw_id, regmap);
  42 }
  43
  44 static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
  45         {
  46                 .compatible = "st,lsm6ds3",
  47                 .data = (void *)ST_LSM6DS3_ID,
  48         },
  49         {
  50                 .compatible = "st,lsm6ds3h",
  51                 .data = (void *)ST_LSM6DS3H_ID,
  52         },
  53         {
  54                 .compatible = "st,lsm6dsl",
  55                 .data = (void *)ST_LSM6DSL_ID,
  56         },
  57         {
  58                 .compatible = "st,lsm6dsm",
  59                 .data = (void *)ST_LSM6DSM_ID,
  60         },
  61         {
  62                 .compatible = "st,ism330dlc",
  63                 .data = (void *)ST_ISM330DLC_ID,
  64         },
  65         {
  66                 .compatible = "st,lsm6dso",
  67                 .data = (void *)ST_LSM6DSO_ID,
  68         },
  69         {
  70                 .compatible = "st,asm330lhh",
  71                 .data = (void *)ST_ASM330LHH_ID,
  72         },
  73         {
  74                 .compatible = "st,lsm6dsox",
  75                 .data = (void *)ST_LSM6DSOX_ID,
  76         },
  77         {
  78                 .compatible = "st,lsm6dsr",
  79                 .data = (void *)ST_LSM6DSR_ID,
  80         },
  81         {
  82                 .compatible = "st,lsm6ds3tr-c",
  83                 .data = (void *)ST_LSM6DS3TRC_ID,
  84         },
  85         {
  86                 .compatible = "st,ism330dhcx",
  87                 .data = (void *)ST_ISM330DHCX_ID,
  88         },
  89         {
  90                 .compatible = "st,lsm9ds1-imu",
  91                 .data = (void *)ST_LSM9DS1_ID,
  92         },
  93         {
  94                 .compatible = "st,lsm6ds0",
  95                 .data = (void *)ST_LSM6DS0_ID,
  96         },
  97         {
  98                 .compatible = "st,lsm6dsrx",
  99                 .data = (void *)ST_LSM6DSRX_ID,
 100         },
 101         {
 102                 .compatible = "st,lsm6dst",
 103                 .data = (void *)ST_LSM6DST_ID,
 104         },
 105         {
 106                 .compatible = "st,lsm6dsop",
 107                 .data = (void *)ST_LSM6DSOP_ID,
 108         },
 109         {
 110                 .compatible = "st,asm330lhhx",
 111                 .data = (void *)ST_ASM330LHHX_ID,
 112         },
 113         {
 114                 .compatible = "st,lsm6dstx",
 115                 .data = (void *)ST_LSM6DSTX_ID,
 116         },
 117         {
 118                 .compatible = "st,lsm6dsv",
 119                 .data = (void *)ST_LSM6DSV_ID,
 120         },
 121         {
 122                 .compatible = "st,lsm6dsv16x",
 123                 .data = (void *)ST_LSM6DSV16X_ID,
 124         },
 125         {
 126                 .compatible = "st,lsm6dso16is",
 127                 .data = (void *)ST_LSM6DSO16IS_ID,
 128         },
 129         {
 130                 .compatible = "st,ism330is",
 131                 .data = (void *)ST_ISM330IS_ID,
 132         },
 133         {
 134                 .compatible = "st,asm330lhb",
 135                 .data = (void *)ST_ASM330LHB_ID,
 136         },
 137         {
 138                 .compatible = "st,asm330lhhxg1",
 139                 .data = (void *)ST_ASM330LHHXG1_ID,
 140         },
 141         {},
 142 };
 143 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
 144
 145 static const struct acpi_device_id st_lsm6dsx_i2c_acpi_match[] = {
 146         { "SMO8B30", ST_LSM6DS3TRC_ID, },
 147         {}
 148 };
 149 MODULE_DEVICE_TABLE(acpi, st_lsm6dsx_i2c_acpi_match);
 150
 151 static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
 152         { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
 153         { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
 154         { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
 155         { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
 156         { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
 157         { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
 158         { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
 159         { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
 160         { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
 161         { ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID },
 162         { ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
 163         { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
 164         { ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
 165         { ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
 166         { ST_LSM6DST_DEV_NAME, ST_LSM6DST_ID },
 167         { ST_LSM6DSOP_DEV_NAME, ST_LSM6DSOP_ID },
 168         { ST_ASM330LHHX_DEV_NAME, ST_ASM330LHHX_ID },
 169         { ST_LSM6DSTX_DEV_NAME, ST_LSM6DSTX_ID },
 170         { ST_LSM6DSV_DEV_NAME, ST_LSM6DSV_ID },
 171         { ST_LSM6DSV16X_DEV_NAME, ST_LSM6DSV16X_ID },
 172         { ST_LSM6DSO16IS_DEV_NAME, ST_LSM6DSO16IS_ID },
 173         { ST_ISM330IS_DEV_NAME, ST_ISM330IS_ID },
 174         { ST_ASM330LHB_DEV_NAME, ST_ASM330LHB_ID },
 175         { ST_ASM330LHHXG1_DEV_NAME, ST_ASM330LHHXG1_ID },
 176         {},
 177 };
 178 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);
 179
 180 static struct i2c_driver st_lsm6dsx_driver = {
 181         .driver = {
 182                 .name = "st_lsm6dsx_i2c",
 183                 .pm = pm_sleep_ptr(&st_lsm6dsx_pm_ops),
 184                 .of_match_table = st_lsm6dsx_i2c_of_match,
 185                 .acpi_match_table = st_lsm6dsx_i2c_acpi_match,
 186         },
 187         .probe = st_lsm6dsx_i2c_probe,
 188         .id_table = st_lsm6dsx_i2c_id_table,
 189 };
 190 module_i2c_driver(st_lsm6dsx_driver);
 191
 192 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
 193 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 194 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i2c driver");
 195 MODULE_LICENSE("GPL v2");
 196 MODULE_IMPORT_NS(IIO_LSM6DSX);