cs530x-spi.c

 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
14static 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};
39MODULE_DEVICE_TABLE(of, cs530x_of_match);
40
41static 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};
51MODULE_DEVICE_TABLE(spi, cs530x_spi_id);
52
53static 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
78static 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
87module_spi_driver(cs530x_spi_driver);
88
89MODULE_DESCRIPTION("SPI CS530X driver");
90MODULE_IMPORT_NS("SND_SOC_CS530X");
91MODULE_AUTHOR("Vitaly Rodionov <vitalyr@opensource.cirrus.com>");
92MODULE_LICENSE("GPL");