1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * I2C bus interface for ATC260x PMICs
 4 *
 5 * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 6 * Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
 7 */
 8
 9#include <linux/i2c.h>
10#include <linux/mfd/atc260x/core.h>
11#include <linux/module.h>
12#include <linux/of.h>
13#include <linux/regmap.h>
14
15static int atc260x_i2c_probe(struct i2c_client *client,
16			     const struct i2c_device_id *id)
17{
18	struct atc260x *atc260x;
19	struct regmap_config regmap_cfg;
20	int ret;
21
22	atc260x = devm_kzalloc(&client->dev, sizeof(*atc260x), GFP_KERNEL);
23	if (!atc260x)
24		return -ENOMEM;
25
26	atc260x->dev = &client->dev;
27	atc260x->irq = client->irq;
28
29	ret = atc260x_match_device(atc260x, &regmap_cfg);
30	if (ret)
31		return ret;
32
33	i2c_set_clientdata(client, atc260x);
34
35	atc260x->regmap = devm_regmap_init_i2c(client, &regmap_cfg);
36	if (IS_ERR(atc260x->regmap)) {
37		ret = PTR_ERR(atc260x->regmap);
38		dev_err(&client->dev, "failed to init regmap: %d\n", ret);
39		return ret;
40	}
41
42	return atc260x_device_probe(atc260x);
43}
44
45static const struct of_device_id atc260x_i2c_of_match[] = {
46	{ .compatible = "actions,atc2603c", .data = (void *)ATC2603C },
47	{ .compatible = "actions,atc2609a", .data = (void *)ATC2609A },
48	{ }
49};
50MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match);
51
52static struct i2c_driver atc260x_i2c_driver = {
53	.driver = {
54		.name = "atc260x",
55		.of_match_table	= of_match_ptr(atc260x_i2c_of_match),
56	},
57	.probe = atc260x_i2c_probe,
58};
59module_i2c_driver(atc260x_i2c_driver);
60
61MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface");
62MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
63MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>");
64MODULE_LICENSE("GPL");