xref: /openbmc/linux/sound/soc/codecs/ssm2602-i2c.c (revision b830f94f)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * SSM2602/SSM2603/SSM2604 I2C audio driver
4  *
5  * Copyright 2014 Analog Devices Inc.
6  */
7 
8 #include <linux/module.h>
9 #include <linux/i2c.h>
10 #include <linux/regmap.h>
11 
12 #include <sound/soc.h>
13 
14 #include "ssm2602.h"
15 
16 /*
17  * ssm2602 2 wire address is determined by GPIO5
18  * state during powerup.
19  *    low  = 0x1a
20  *    high = 0x1b
21  */
22 static int ssm2602_i2c_probe(struct i2c_client *client,
23 			     const struct i2c_device_id *id)
24 {
25 	return ssm2602_probe(&client->dev, id->driver_data,
26 		devm_regmap_init_i2c(client, &ssm2602_regmap_config));
27 }
28 
29 static const struct i2c_device_id ssm2602_i2c_id[] = {
30 	{ "ssm2602", SSM2602 },
31 	{ "ssm2603", SSM2602 },
32 	{ "ssm2604", SSM2604 },
33 	{ }
34 };
35 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
36 
37 static const struct of_device_id ssm2602_of_match[] = {
38 	{ .compatible = "adi,ssm2602", },
39 	{ .compatible = "adi,ssm2603", },
40 	{ .compatible = "adi,ssm2604", },
41 	{ }
42 };
43 MODULE_DEVICE_TABLE(of, ssm2602_of_match);
44 
45 static struct i2c_driver ssm2602_i2c_driver = {
46 	.driver = {
47 		.name = "ssm2602",
48 		.of_match_table = ssm2602_of_match,
49 	},
50 	.probe = ssm2602_i2c_probe,
51 	.id_table = ssm2602_i2c_id,
52 };
53 module_i2c_driver(ssm2602_i2c_driver);
54 
55 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 I2C driver");
56 MODULE_AUTHOR("Cliff Cai");
57 MODULE_LICENSE("GPL");
58