1 /*
2  * ALSA SoC TLV320AIC23 codec driver I2C interface
3  *
4  * Author:      Arun KS, <arunks@mistralsolutions.com>
5  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
6  *
7  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13 
14 #include <linux/i2c.h>
15 #include <linux/module.h>
16 #include <linux/of.h>
17 #include <linux/regmap.h>
18 #include <sound/soc.h>
19 
20 #include "tlv320aic23.h"
21 
22 static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
23 				 const struct i2c_device_id *i2c_id)
24 {
25 	struct regmap *regmap;
26 
27 	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
28 		return -EINVAL;
29 
30 	regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
31 	return tlv320aic23_probe(&i2c->dev, regmap);
32 }
33 
34 static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
35 {
36 	snd_soc_unregister_codec(&i2c->dev);
37 	return 0;
38 }
39 
40 static const struct i2c_device_id tlv320aic23_id[] = {
41 	{"tlv320aic23", 0},
42 	{}
43 };
44 
45 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
46 
47 static const struct of_device_id tlv320aic23_of_match[] = {
48 	{ .compatible = "ti,tlv320aic23", },
49 	{ }
50 };
51 MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
52 
53 static struct i2c_driver tlv320aic23_i2c_driver = {
54 	.driver = {
55 		   .name = "tlv320aic23-codec",
56 		   .of_match_table = of_match_ptr(tlv320aic23_of_match),
57 		   },
58 	.probe = tlv320aic23_i2c_probe,
59 	.remove = __exit_p(tlv320aic23_i2c_remove),
60 	.id_table = tlv320aic23_id,
61 };
62 
63 module_i2c_driver(tlv320aic23_i2c_driver);
64 
65 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
66 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
67 MODULE_LICENSE("GPL");
68