LXR linux/drivers/iio/light/st_uvis25

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * STMicroelectronics uvis25 i2c driver
   4 *
   5 * Copyright 2017 STMicroelectronics Inc.
   6 *
   7 * Lorenzo Bianconi <lorenzo.bianconi83@gmail.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/slab.h>
  15#include <linux/regmap.h>
  16
  17#include "st_uvis25.h"
  18
  19#define UVIS25_I2C_AUTO_INCREMENT       BIT(7)
  20
  21static const struct regmap_config st_uvis25_i2c_regmap_config = {
  22        .reg_bits = 8,
  23        .val_bits = 8,
  24        .write_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
  25        .read_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
  26};
  27
  28static int st_uvis25_i2c_probe(struct i2c_client *client,
  29                               const struct i2c_device_id *id)
  30{
  31        struct regmap *regmap;
  32
  33        regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config);
  34        if (IS_ERR(regmap)) {
  35                dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
  36                        PTR_ERR(regmap));
  37                return PTR_ERR(regmap);
  38        }
  39
  40        return st_uvis25_probe(&client->dev, client->irq, regmap);
  41}
  42
  43static const struct of_device_id st_uvis25_i2c_of_match[] = {
  44        { .compatible = "st,uvis25", },
  45        {},
  46};
  47MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match);
  48
  49static const struct i2c_device_id st_uvis25_i2c_id_table[] = {
  50        { ST_UVIS25_DEV_NAME },
  51        {},
  52};
  53MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table);
  54
  55static struct i2c_driver st_uvis25_driver = {
  56        .driver = {
  57                .name = "st_uvis25_i2c",
  58                .pm = &st_uvis25_pm_ops,
  59                .of_match_table = st_uvis25_i2c_of_match,
  60        },
  61        .probe = st_uvis25_i2c_probe,
  62        .id_table = st_uvis25_i2c_id_table,
  63};
  64module_i2c_driver(st_uvis25_driver);
  65
  66MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
  67MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver");
  68MODULE_LICENSE("GPL v2");
  69