xref: /openbmc/linux/sound/soc/codecs/cs4271-i2c.c (revision be709d48)
1 /*
2  * CS4271 I2C audio driver
3  *
4  * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  */
16 
17 #include <linux/module.h>
18 #include <linux/i2c.h>
19 #include <linux/regmap.h>
20 #include <sound/soc.h>
21 #include "cs4271.h"
22 
23 static int cs4271_i2c_probe(struct i2c_client *client,
24 			     const struct i2c_device_id *id)
25 {
26 	struct regmap_config config;
27 
28 	config = cs4271_regmap_config;
29 	config.reg_bits = 8;
30 	config.val_bits = 8;
31 
32 	return cs4271_probe(&client->dev,
33 			    devm_regmap_init_i2c(client, &config));
34 }
35 
36 static const struct i2c_device_id cs4271_i2c_id[] = {
37 	{ "cs4271", 0 },
38 	{ }
39 };
40 MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
41 
42 static struct i2c_driver cs4271_i2c_driver = {
43 	.driver = {
44 		.name = "cs4271",
45 		.of_match_table = of_match_ptr(cs4271_dt_ids),
46 	},
47 	.probe = cs4271_i2c_probe,
48 	.id_table = cs4271_i2c_id,
49 };
50 module_i2c_driver(cs4271_i2c_driver);
51 
52 MODULE_DESCRIPTION("ASoC CS4271 I2C Driver");
53 MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
54 MODULE_LICENSE("GPL");
55