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/of.h>
  16 #include <linux/regmap.h>
  17
  18 #include "st_lsm6dsx.h"
  19
  20 static const struct regmap_config st_lsm6dsx_spi_regmap_config = {
  21         .reg_bits = 8,
  22         .val_bits = 8,
  23 };
  24
  25 static int st_lsm6dsx_spi_probe(struct spi_device *spi)
  26 {
  27         const struct spi_device_id *id = spi_get_device_id(spi);
  28         int hw_id = id->driver_data;
  29         struct regmap *regmap;
  30
  31         regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_regmap_config);
  32         if (IS_ERR(regmap)) {
  33                 dev_err(&spi->dev, "Failed to register spi regmap %d\n",
  34                         (int)PTR_ERR(regmap));
  35                 return PTR_ERR(regmap);
  36         }
  37
  38         return st_lsm6dsx_probe(&spi->dev, spi->irq,
  39                                 hw_id, id->name, regmap);
  40 }
  41
  42 static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
  43         {
  44                 .compatible = "st,lsm6ds3",
  45                 .data = (void *)ST_LSM6DS3_ID,
  46         },
  47         {
  48                 .compatible = "st,lsm6ds3h",
  49                 .data = (void *)ST_LSM6DS3H_ID,
  50         },
  51         {
  52                 .compatible = "st,lsm6dsl",
  53                 .data = (void *)ST_LSM6DSL_ID,
  54         },
  55         {
  56                 .compatible = "st,lsm6dsm",
  57                 .data = (void *)ST_LSM6DSM_ID,
  58         },
  59         {
  60                 .compatible = "st,ism330dlc",
  61                 .data = (void *)ST_ISM330DLC_ID,
  62         },
  63         {
  64                 .compatible = "st,lsm6dso",
  65                 .data = (void *)ST_LSM6DSO_ID,
  66         },
  67         {
  68                 .compatible = "st,asm330lhh",
  69                 .data = (void *)ST_ASM330LHH_ID,
  70         },
  71         {
  72                 .compatible = "st,lsm6dsox",
  73                 .data = (void *)ST_LSM6DSOX_ID,
  74         },
  75         {
  76                 .compatible = "st,lsm6dsr",
  77                 .data = (void *)ST_LSM6DSR_ID,
  78         },
  79         {},
  80 };
  81 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
  82
  83 static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
  84         { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
  85         { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
  86         { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
  87         { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
  88         { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
  89         { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
  90         { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
  91         { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
  92         { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
  93         {},
  94 };
  95 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);
  96
  97 static struct spi_driver st_lsm6dsx_driver = {
  98         .driver = {
  99                 .name = "st_lsm6dsx_spi",
 100                 .pm = &st_lsm6dsx_pm_ops,
 101                 .of_match_table = of_match_ptr(st_lsm6dsx_spi_of_match),
 102         },
 103         .probe = st_lsm6dsx_spi_probe,
 104         .id_table = st_lsm6dsx_spi_id_table,
 105 };
 106 module_spi_driver(st_lsm6dsx_driver);
 107
 108 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
 109 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 110 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx spi driver");
 111 MODULE_LICENSE("GPL v2");