1. 根目录:
2. sound
3. soc
4. codecs
5. cs4271-i2c.c

/*
 * CS4271 I2C audio driver
 *
 * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
 *
 * 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/i2c.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "cs4271.h"

static int cs4271_i2c_probe(struct i2c_client *client,
			     const struct i2c_device_id *id)
{
	struct regmap_config config;

	config = cs4271_regmap_config;
	config.reg_bits = 8;
	config.val_bits = 8;

	return cs4271_probe(&client->dev,
			    devm_regmap_init_i2c(client, &config));
}

static int cs4271_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	return 0;
}

static const struct i2c_device_id cs4271_i2c_id[] = {
	{ "cs4271", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);

static struct i2c_driver cs4271_i2c_driver = {
	.driver = {
		.name = "cs4271",
		.of_match_table = of_match_ptr(cs4271_dt_ids),
	},
	.probe = cs4271_i2c_probe,
	.remove = cs4271_i2c_remove,
	.id_table = cs4271_i2c_id,
};
module_i2c_driver(cs4271_i2c_driver);

MODULE_DESCRIPTION("ASoC CS4271 I2C Driver");
MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
MODULE_LICENSE("GPL");