linux-libre/sound/soc/codecs/pcm179x-i2c.c

/*
 * PCM179X ASoC I2C driver
 *
 * Copyright (c) Teenage Engineering AB 2016
 *
 *     Jacob Siverskog <jacob@teenage.engineering>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

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

#include "pcm179x.h"

static int pcm179x_i2c_probe(struct i2c_client *client,
			      const struct i2c_device_id *id)
{
	struct regmap *regmap;
	int ret;

	regmap = devm_regmap_init_i2c(client, &pcm179x_regmap_config);
	if (IS_ERR(regmap)) {
		ret = PTR_ERR(regmap);
		dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret);
		return ret;
	}

	return pcm179x_common_init(&client->dev, regmap);
}

static int pcm179x_i2c_remove(struct i2c_client *client)
{
	return pcm179x_common_exit(&client->dev);
}

static const struct of_device_id pcm179x_of_match[] = {
	{ .compatible = "ti,pcm1792a", },
	{ }
};
MODULE_DEVICE_TABLE(of, pcm179x_of_match);

static const struct i2c_device_id pcm179x_i2c_ids[] = {
	{ "pcm179x", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids);

static struct i2c_driver pcm179x_i2c_driver = {
	.driver = {
		.name	= "pcm179x",
		.of_match_table = of_match_ptr(pcm179x_of_match),
	},
	.id_table	= pcm179x_i2c_ids,
	.probe		= pcm179x_i2c_probe,
	.remove		= pcm179x_i2c_remove,
};

module_i2c_driver(pcm179x_i2c_driver);

MODULE_DESCRIPTION("ASoC PCM179X I2C driver");
MODULE_AUTHOR("Jacob Siverskog <jacob@teenage.engineering>");
MODULE_LICENSE("GPL");