xref: /linux/sound/soc/codecs/cs530x-spi.c (revision 84318277d6334c6981ab326d4acc87c6a6ddc9b8)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // CS530x CODEC driver
4 //
5 // Copyright (C) 2025 Cirrus Logic, Inc. and
6 //                    Cirrus Logic International Semiconductor Ltd.
7 
8 #include <linux/module.h>
9 #include <linux/platform_device.h>
10 #include <linux/spi/spi.h>
11 
12 #include "cs530x.h"
13 
14 static const struct of_device_id cs530x_of_match[] = {
15 	{
16 		.compatible = "cirrus,cs4282",
17 		.data = (void *)CS4282,
18 	}, {
19 		.compatible = "cirrus,cs4302",
20 		.data = (void *)CS4302,
21 	}, {
22 		.compatible = "cirrus,cs4304",
23 		.data = (void *)CS4304,
24 	}, {
25 		.compatible = "cirrus,cs4308",
26 		.data = (void *)CS4308,
27 	}, {
28 		.compatible = "cirrus,cs5302",
29 		.data = (void *)CS5302,
30 	}, {
31 		.compatible = "cirrus,cs5304",
32 		.data = (void *)CS5304,
33 	}, {
34 		.compatible = "cirrus,cs5304",
35 		.data = (void *)CS5308,
36 	},
37 	{}
38 };
39 MODULE_DEVICE_TABLE(of, cs530x_of_match);
40 
41 static const struct spi_device_id cs530x_spi_id[] = {
42 	{ "cs4282", CS4282 },
43 	{ "cs4302", CS4302 },
44 	{ "cs4304", CS4304 },
45 	{ "cs4308", CS4308 },
46 	{ "cs5302", CS5302 },
47 	{ "cs5304", CS5304 },
48 	{ "cs5308", CS5308 },
49 	{ }
50 };
51 MODULE_DEVICE_TABLE(spi, cs530x_spi_id);
52 
53 static int cs530x_spi_probe(struct spi_device *spi)
54 {
55 	struct cs530x_priv *cs530x;
56 	struct device *dev = &spi->dev;
57 	int ret;
58 
59 	cs530x = devm_kzalloc(dev, sizeof(struct cs530x_priv), GFP_KERNEL);
60 	if (cs530x == NULL)
61 		return -ENOMEM;
62 
63 	spi_set_drvdata(spi, cs530x);
64 
65 	cs530x->regmap = devm_regmap_init_spi(spi, &cs530x_regmap_spi);
66 	if (IS_ERR(cs530x->regmap)) {
67 		ret = PTR_ERR(cs530x->regmap);
68 		dev_err(dev, "Failed to allocate register map: %d\n", ret);
69 		return ret;
70 	}
71 
72 	cs530x->devtype = (unsigned long)spi_get_device_match_data(spi);
73 	cs530x->dev = &spi->dev;
74 
75 	return cs530x_probe(cs530x);
76 }
77 
78 static struct spi_driver cs530x_spi_driver = {
79 	.driver = {
80 		.name		= "cs530x",
81 		.of_match_table = cs530x_of_match,
82 	},
83 	.id_table	= cs530x_spi_id,
84 	.probe		= cs530x_spi_probe,
85 };
86 
87 module_spi_driver(cs530x_spi_driver);
88 
89 MODULE_DESCRIPTION("SPI CS530X driver");
90 MODULE_IMPORT_NS("SND_SOC_CS530X");
91 MODULE_AUTHOR("Vitaly Rodionov <vitalyr@opensource.cirrus.com>");
92 MODULE_LICENSE("GPL");
93