diff options
Diffstat (limited to 'sound/soc/codecs/cs4271-spi.c')
-rw-r--r-- | sound/soc/codecs/cs4271-spi.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs4271-spi.c b/sound/soc/codecs/cs4271-spi.c new file mode 100644 index 000000000000..acd49d86e706 --- /dev/null +++ b/sound/soc/codecs/cs4271-spi.c | |||
@@ -0,0 +1,55 @@ | |||
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 int cs4271_spi_remove(struct spi_device *spi) | ||
37 | { | ||
38 | snd_soc_unregister_codec(&spi->dev); | ||
39 | return 0; | ||
40 | } | ||
41 | |||
42 | static struct spi_driver cs4271_spi_driver = { | ||
43 | .driver = { | ||
44 | .name = "cs4271", | ||
45 | .owner = THIS_MODULE, | ||
46 | .of_match_table = of_match_ptr(cs4271_dt_ids), | ||
47 | }, | ||
48 | .probe = cs4271_spi_probe, | ||
49 | .remove = cs4271_spi_remove, | ||
50 | }; | ||
51 | module_spi_driver(cs4271_spi_driver); | ||
52 | |||
53 | MODULE_DESCRIPTION("ASoC CS4271 SPI Driver"); | ||
54 | MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>"); | ||
55 | MODULE_LICENSE("GPL"); | ||