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{
30	struct regmap *regmap;
31
32	regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config);
33	if (IS_ERR(regmap)) {
34		dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
35			PTR_ERR(regmap));
36		return PTR_ERR(regmap);
37	}
38
39	return st_uvis25_probe(&client->dev, client->irq, regmap);
40}
41
42static const struct of_device_id st_uvis25_i2c_of_match[] = {
43	{ .compatible = "st,uvis25", },
44	{},
45};
46MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match);
47
48static const struct i2c_device_id st_uvis25_i2c_id_table[] = {
49	{ ST_UVIS25_DEV_NAME },
50	{},
51};
52MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table);
53
54static struct i2c_driver st_uvis25_driver = {
55	.driver = {
56		.name = "st_uvis25_i2c",
57		.pm = pm_sleep_ptr(&st_uvis25_pm_ops),
58		.of_match_table = st_uvis25_i2c_of_match,
59	},
60	.probe = st_uvis25_i2c_probe,
61	.id_table = st_uvis25_i2c_id_table,
62};
63module_i2c_driver(st_uvis25_driver);
64
65MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
66MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver");
67MODULE_LICENSE("GPL v2");
68MODULE_IMPORT_NS(IIO_UVIS25);
69