xref: /linux/sound/soc/codecs/pcm179x-i2c.c (revision ae22a94997b8a03dcb3c922857c203246711f9d4)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * PCM179X ASoC I2C driver
4  *
5  * Copyright (c) Teenage Engineering AB 2016
6  *
7  *     Jacob Siverskog <jacob@teenage.engineering>
8  */
9 
10 #include <linux/module.h>
11 #include <linux/of.h>
12 #include <linux/i2c.h>
13 #include <linux/regmap.h>
14 
15 #include "pcm179x.h"
16 
17 static int pcm179x_i2c_probe(struct i2c_client *client)
18 {
19 	struct regmap *regmap;
20 	int ret;
21 
22 	regmap = devm_regmap_init_i2c(client, &pcm179x_regmap_config);
23 	if (IS_ERR(regmap)) {
24 		ret = PTR_ERR(regmap);
25 		dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret);
26 		return ret;
27 	}
28 
29 	return pcm179x_common_init(&client->dev, regmap);
30 }
31 
32 #ifdef CONFIG_OF
33 static const struct of_device_id pcm179x_of_match[] = {
34 	{ .compatible = "ti,pcm1792a", },
35 	{ }
36 };
37 MODULE_DEVICE_TABLE(of, pcm179x_of_match);
38 #endif
39 
40 static const struct i2c_device_id pcm179x_i2c_ids[] = {
41 	{ "pcm179x", 0 },
42 	{ }
43 };
44 MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids);
45 
46 static struct i2c_driver pcm179x_i2c_driver = {
47 	.driver = {
48 		.name	= "pcm179x",
49 		.of_match_table = of_match_ptr(pcm179x_of_match),
50 	},
51 	.id_table	= pcm179x_i2c_ids,
52 	.probe		= pcm179x_i2c_probe,
53 };
54 
55 module_i2c_driver(pcm179x_i2c_driver);
56 
57 MODULE_DESCRIPTION("ASoC PCM179X I2C driver");
58 MODULE_AUTHOR("Jacob Siverskog <jacob@teenage.engineering>");
59 MODULE_LICENSE("GPL");
60