1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * ALSA SoC TLV320AIC23 codec driver I2C interface
4  *
5  * Author:      Arun KS, <arunks@mistralsolutions.com>
6  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
7  *
8  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9  */
10 
11 #include <linux/i2c.h>
12 #include <linux/module.h>
13 #include <linux/of.h>
14 #include <linux/regmap.h>
15 #include <sound/soc.h>
16 
17 #include "tlv320aic23.h"
18 
19 static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
20 				 const struct i2c_device_id *i2c_id)
21 {
22 	struct regmap *regmap;
23 
24 	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
25 		return -EINVAL;
26 
27 	regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
28 	return tlv320aic23_probe(&i2c->dev, regmap);
29 }
30 
31 static const struct i2c_device_id tlv320aic23_id[] = {
32 	{"tlv320aic23", 0},
33 	{}
34 };
35 
36 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
37 
38 #ifdef CONFIG_OF
39 static const struct of_device_id tlv320aic23_of_match[] = {
40 	{ .compatible = "ti,tlv320aic23", },
41 	{ }
42 };
43 MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
44 #endif
45 
46 static struct i2c_driver tlv320aic23_i2c_driver = {
47 	.driver = {
48 		   .name = "tlv320aic23-codec",
49 		   .of_match_table = of_match_ptr(tlv320aic23_of_match),
50 		   },
51 	.probe = tlv320aic23_i2c_probe,
52 	.id_table = tlv320aic23_id,
53 };
54 
55 module_i2c_driver(tlv320aic23_i2c_driver);
56 
57 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
58 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
59 MODULE_LICENSE("GPL");
60