drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * STMicroelectronics st_lsm6dsx spi 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/spi/spi.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_spi_regmap_config = {
  20         .reg_bits = 8,
  21         .val_bits = 8,
  22 };
  23
  24 static int st_lsm6dsx_spi_probe(struct spi_device *spi)
  25 {
  26         const struct spi_device_id *id = spi_get_device_id(spi);
  27         int hw_id = id->driver_data;
  28         struct regmap *regmap;
  29
  30         regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_regmap_config);
  31         if (IS_ERR(regmap)) {
  32                 dev_err(&spi->dev, "Failed to register spi regmap %d\n",
  33                         (int)PTR_ERR(regmap));
  34                 return PTR_ERR(regmap);
  35         }
  36
  37         return st_lsm6dsx_probe(&spi->dev, spi->irq, hw_id, regmap);
  38 }
  39
  40 static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
  41         {
  42                 .compatible = "st,lsm6ds3",
  43                 .data = (void *)ST_LSM6DS3_ID,
  44         },
  45         {
  46                 .compatible = "st,lsm6ds3h",
  47                 .data = (void *)ST_LSM6DS3H_ID,
  48         },
  49         {
  50                 .compatible = "st,lsm6dsl",
  51                 .data = (void *)ST_LSM6DSL_ID,
  52         },
  53         {
  54                 .compatible = "st,lsm6dsm",
  55                 .data = (void *)ST_LSM6DSM_ID,
  56         },
  57         {
  58                 .compatible = "st,ism330dlc",
  59                 .data = (void *)ST_ISM330DLC_ID,
  60         },
  61         {
  62                 .compatible = "st,lsm6dso",
  63                 .data = (void *)ST_LSM6DSO_ID,
  64         },
  65         {
  66                 .compatible = "st,asm330lhh",
  67                 .data = (void *)ST_ASM330LHH_ID,
  68         },
  69         {
  70                 .compatible = "st,lsm6dsox",
  71                 .data = (void *)ST_LSM6DSOX_ID,
  72         },
  73         {
  74                 .compatible = "st,lsm6dsr",
  75                 .data = (void *)ST_LSM6DSR_ID,
  76         },
  77         {
  78                 .compatible = "st,lsm6ds3tr-c",
  79                 .data = (void *)ST_LSM6DS3TRC_ID,
  80         },
  81         {
  82                 .compatible = "st,ism330dhcx",
  83                 .data = (void *)ST_ISM330DHCX_ID,
  84         },
  85         {
  86                 .compatible = "st,lsm9ds1-imu",
  87                 .data = (void *)ST_LSM9DS1_ID,
  88         },
  89         {
  90                 .compatible = "st,lsm6ds0",
  91                 .data = (void *)ST_LSM6DS0_ID,
  92         },
  93         {
  94                 .compatible = "st,lsm6dsrx",
  95                 .data = (void *)ST_LSM6DSRX_ID,
  96         },
  97         {},
  98 };
  99 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
 100
 101 static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
 102         { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
 103         { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
 104         { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
 105         { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
 106         { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
 107         { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
 108         { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
 109         { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
 110         { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
 111         { ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID },
 112         { ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
 113         { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
 114         { ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
 115         { ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
 116         {},
 117 };
 118 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);
 119
 120 static struct spi_driver st_lsm6dsx_driver = {
 121         .driver = {
 122                 .name = "st_lsm6dsx_spi",
 123                 .pm = &st_lsm6dsx_pm_ops,
 124                 .of_match_table = st_lsm6dsx_spi_of_match,
 125         },
 126         .probe = st_lsm6dsx_spi_probe,
 127         .id_table = st_lsm6dsx_spi_id_table,
 128 };
 129 module_spi_driver(st_lsm6dsx_driver);
 130
 131 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
 132 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 133 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx spi driver");
 134 MODULE_LICENSE("GPL v2");