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Thomas Gleixnerfda8d262019-05-28 09:57:06 -07001// SPDX-License-Identifier: GPL-2.0-only
Lorenzo Bianconi3025c862017-11-23 23:59:05 +01002/*
3 * STMicroelectronics uvis25 i2c driver
4 *
5 * Copyright 2017 STMicroelectronics Inc.
6 *
7 * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Lorenzo Bianconi3025c862017-11-23 23:59:05 +01008 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
Jonathan Cameron645aee52020-04-19 16:02:05 +010012#include <linux/mod_devicetable.h>
Lorenzo Bianconi3025c862017-11-23 23:59:05 +010013#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
Colin Ian Kingdebbbbe2017-12-04 12:04:06 +000021static const struct regmap_config st_uvis25_i2c_regmap_config = {
Lorenzo Bianconi3025c862017-11-23 23:59:05 +010022 .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)) {
Andy Shevchenko3c50dee2020-03-13 12:49:48 +020035 dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
36 PTR_ERR(regmap));
Lorenzo Bianconi3025c862017-11-23 23:59:05 +010037 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,
Jonathan Cameron645aee52020-04-19 16:02:05 +010059 .of_match_table = st_uvis25_i2c_of_match,
Lorenzo Bianconi3025c862017-11-23 23:59:05 +010060 },
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");