xref: /openbmc/linux/sound/soc/codecs/pcm179x-spi.c (revision c796f021)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * PCM179X ASoC SPI driver
4  *
5  * Copyright (c) Amarula Solutions B.V. 2013
6  *
7  *     Michael Trimarchi <michael@amarulasolutions.com>
8  */
9 
10 #include <linux/module.h>
11 #include <linux/of.h>
12 #include <linux/spi/spi.h>
13 #include <linux/regmap.h>
14 
15 #include "pcm179x.h"
16 
17 static int pcm179x_spi_probe(struct spi_device *spi)
18 {
19 	struct regmap *regmap;
20 	int ret;
21 
22 	regmap = devm_regmap_init_spi(spi, &pcm179x_regmap_config);
23 	if (IS_ERR(regmap)) {
24 		ret = PTR_ERR(regmap);
25 		dev_err(&spi->dev, "Failed to allocate regmap: %d\n", ret);
26 		return ret;
27 	}
28 
29 	return pcm179x_common_init(&spi->dev, regmap);
30 }
31 
32 static const struct of_device_id pcm179x_of_match[] = {
33 	{ .compatible = "ti,pcm1792a", },
34 	{ }
35 };
36 MODULE_DEVICE_TABLE(of, pcm179x_of_match);
37 
38 static const struct spi_device_id pcm179x_spi_ids[] = {
39 	{ "pcm1792a", 0 },
40 	{ "pcm179x", 0 },
41 	{ },
42 };
43 MODULE_DEVICE_TABLE(spi, pcm179x_spi_ids);
44 
45 static struct spi_driver pcm179x_spi_driver = {
46 	.driver = {
47 		.name = "pcm179x",
48 		.of_match_table = of_match_ptr(pcm179x_of_match),
49 	},
50 	.id_table = pcm179x_spi_ids,
51 	.probe = pcm179x_spi_probe,
52 };
53 
54 module_spi_driver(pcm179x_spi_driver);
55 
56 MODULE_DESCRIPTION("ASoC PCM179X SPI driver");
57 MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
58 MODULE_LICENSE("GPL");
59