[linux-2.6-block.git] / drivers / mfd / atc260x-i2c.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * I2C bus interface for ATC260x PMICs
 *
 * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 * Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
 */

#include <linux/i2c.h>
#include <linux/mfd/atc260x/core.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>

static int atc260x_i2c_probe(struct i2c_client *client,
			     const struct i2c_device_id *id)
{
	struct atc260x *atc260x;
	struct regmap_config regmap_cfg;
	int ret;

	atc260x = devm_kzalloc(&client->dev, sizeof(*atc260x), GFP_KERNEL);
	if (!atc260x)
		return -ENOMEM;

	atc260x->dev = &client->dev;
	atc260x->irq = client->irq;

	ret = atc260x_match_device(atc260x, &regmap_cfg);
	if (ret)
		return ret;

	i2c_set_clientdata(client, atc260x);

	atc260x->regmap = devm_regmap_init_i2c(client, &regmap_cfg);
	if (IS_ERR(atc260x->regmap)) {
		ret = PTR_ERR(atc260x->regmap);
		dev_err(&client->dev, "failed to init regmap: %d\n", ret);
		return ret;
	}

	return atc260x_device_probe(atc260x);
}

static const struct of_device_id atc260x_i2c_of_match[] = {
	{ .compatible = "actions,atc2603c", .data = (void *)ATC2603C },
	{ .compatible = "actions,atc2609a", .data = (void *)ATC2609A },
	{ }
};
MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match);

static struct i2c_driver atc260x_i2c_driver = {
	.driver = {
		.name = "atc260x",
		.of_match_table	= of_match_ptr(atc260x_i2c_of_match),
	},
	.probe = atc260x_i2c_probe,
};
module_i2c_driver(atc260x_i2c_driver);

MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface");
MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
f7cb7fe3 CC	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
	15	static 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
c0d46b89	45	static const struct of_device_id atc260x_i2c_of_match[] = {
f7cb7fe3 CC	46	{ .compatible = "actions,atc2603c", .data = (void *)ATC2603C },
	47	{ .compatible = "actions,atc2609a", .data = (void *)ATC2609A },
	48	{ }
	49	};
	50	MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match);
	51
	52	static 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	};
	59	module_i2c_driver(atc260x_i2c_driver);
	60
	61	MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface");
	62	MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
	63	MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>");
	64	MODULE_LICENSE("GPL");