xref: /openbmc/linux/sound/soc/codecs/ad193x-spi.c (revision e58e871b)
1 /*
2  * AD1938/AD1939 audio driver
3  *
4  * Copyright 2014 Analog Devices Inc.
5  *
6  * Licensed under the GPL-2.
7  */
8 
9 #include <linux/module.h>
10 #include <linux/spi/spi.h>
11 #include <linux/regmap.h>
12 
13 #include <sound/soc.h>
14 
15 #include "ad193x.h"
16 
17 static int ad193x_spi_probe(struct spi_device *spi)
18 {
19 	const struct spi_device_id *id = spi_get_device_id(spi);
20 	struct regmap_config config;
21 
22 	config = ad193x_regmap_config;
23 	config.val_bits = 8;
24 	config.reg_bits = 16;
25 	config.read_flag_mask = 0x09;
26 	config.write_flag_mask = 0x08;
27 
28 	return ad193x_probe(&spi->dev, devm_regmap_init_spi(spi, &config),
29 			    (enum ad193x_type)id->driver_data);
30 }
31 
32 static int ad193x_spi_remove(struct spi_device *spi)
33 {
34 	snd_soc_unregister_codec(&spi->dev);
35 	return 0;
36 }
37 
38 static const struct spi_device_id ad193x_spi_id[] = {
39 	{ "ad193x", AD193X },
40 	{ "ad1933", AD1933 },
41 	{ "ad1934", AD1934 },
42 	{ "ad1938", AD193X },
43 	{ "ad1939", AD193X },
44 	{ "adau1328", AD193X },
45 	{ }
46 };
47 MODULE_DEVICE_TABLE(spi, ad193x_spi_id);
48 
49 static struct spi_driver ad193x_spi_driver = {
50 	.driver = {
51 		.name	= "ad193x",
52 	},
53 	.probe		= ad193x_spi_probe,
54 	.remove		= ad193x_spi_remove,
55 	.id_table	= ad193x_spi_id,
56 };
57 module_spi_driver(ad193x_spi_driver);
58 
59 MODULE_DESCRIPTION("ASoC AD1938/AD1939 audio CODEC driver");
60 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
61 MODULE_LICENSE("GPL");
62