xref: /openbmc/linux/sound/soc/codecs/cs4271-spi.c (revision 96de2506)
1 /*
2  * CS4271 SPI audio driver
3  *
4  * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  */
16 
17 #include <linux/module.h>
18 #include <linux/spi/spi.h>
19 #include <linux/regmap.h>
20 #include <sound/soc.h>
21 #include "cs4271.h"
22 
23 static int cs4271_spi_probe(struct spi_device *spi)
24 {
25 	struct regmap_config config;
26 
27 	config = cs4271_regmap_config;
28 	config.reg_bits = 16;
29 	config.val_bits = 8;
30 	config.read_flag_mask = 0x21;
31 	config.write_flag_mask = 0x20;
32 
33 	return cs4271_probe(&spi->dev, devm_regmap_init_spi(spi, &config));
34 }
35 
36 static struct spi_driver cs4271_spi_driver = {
37 	.driver = {
38 		.name	= "cs4271",
39 		.of_match_table = of_match_ptr(cs4271_dt_ids),
40 	},
41 	.probe		= cs4271_spi_probe,
42 };
43 module_spi_driver(cs4271_spi_driver);
44 
45 MODULE_DESCRIPTION("ASoC CS4271 SPI Driver");
46 MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
47 MODULE_LICENSE("GPL");
48