1/*
 2 * STMicroelectronics uvis25 i2c driver
 3 *
 4 * Copyright 2017 STMicroelectronics Inc.
 5 *
 6 * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
 7 *
 8 * Licensed under the GPL-2.
 9 */
10
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/acpi.h>
14#include <linux/i2c.h>
15#include <linux/slab.h>
16#include <linux/regmap.h>
17
18#include "st_uvis25.h"
19
20#define UVIS25_I2C_AUTO_INCREMENT	BIT(7)
21
22static const struct regmap_config st_uvis25_i2c_regmap_config = {
23	.reg_bits = 8,
24	.val_bits = 8,
25	.write_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
26	.read_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
27};
28
29static int st_uvis25_i2c_probe(struct i2c_client *client,
30			       const struct i2c_device_id *id)
31{
32	struct regmap *regmap;
33
34	regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config);
35	if (IS_ERR(regmap)) {
36		dev_err(&client->dev, "Failed to register i2c regmap %d\n",
37			(int)PTR_ERR(regmap));
38		return PTR_ERR(regmap);
39	}
40
41	return st_uvis25_probe(&client->dev, client->irq, regmap);
42}
43
44static const struct of_device_id st_uvis25_i2c_of_match[] = {
45	{ .compatible = "st,uvis25", },
46	{},
47};
48MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match);
49
50static const struct i2c_device_id st_uvis25_i2c_id_table[] = {
51	{ ST_UVIS25_DEV_NAME },
52	{},
53};
54MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table);
55
56static struct i2c_driver st_uvis25_driver = {
57	.driver = {
58		.name = "st_uvis25_i2c",
59		.pm = &st_uvis25_pm_ops,
60		.of_match_table = of_match_ptr(st_uvis25_i2c_of_match),
61	},
62	.probe = st_uvis25_i2c_probe,
63	.id_table = st_uvis25_i2c_id_table,
64};
65module_i2c_driver(st_uvis25_driver);
66
67MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
68MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver");
69MODULE_LICENSE("GPL v2");