cs530x-i2c.c

 1// SPDX-License-Identifier: GPL-2.0
 2//
 3// CS530x CODEC driver
 4//
 5// Copyright (C) 2024-2025 Cirrus Logic, Inc. and
 6//                         Cirrus Logic International Semiconductor Ltd.
 7
 8#include <linux/device.h>
 9#include <linux/module.h>
10#include <linux/i2c.h>
11#include <linux/regmap.h>
12
13#include "cs530x.h"
14
15static const struct of_device_id cs530x_of_match[] = {
16	{
17		.compatible = "cirrus,cs4282",
18		.data = (void *)CS4282,
19	}, {
20		.compatible = "cirrus,cs4302",
21		.data = (void *)CS4302,
22	}, {
23		.compatible = "cirrus,cs4304",
24		.data = (void *)CS4304,
25	}, {
26		.compatible = "cirrus,cs4308",
27		.data = (void *)CS4308,
28	}, {
29		.compatible = "cirrus,cs5302",
30		.data = (void *)CS5302,
31	}, {
32		.compatible = "cirrus,cs5304",
33		.data = (void *)CS5304,
34	}, {
35		.compatible = "cirrus,cs5308",
36		.data = (void *)CS5308,
37	},
38	{}
39};
40MODULE_DEVICE_TABLE(of, cs530x_of_match);
41
42static const struct i2c_device_id cs530x_i2c_id[] = {
43	{ "cs4282", CS4282 },
44	{ "cs4302", CS4302 },
45	{ "cs4304", CS4304 },
46	{ "cs4308", CS4308 },
47	{ "cs5302", CS5302 },
48	{ "cs5304", CS5304 },
49	{ "cs5308", CS5308 },
50	{ }
51};
52MODULE_DEVICE_TABLE(i2c, cs530x_i2c_id);
53
54static int cs530x_i2c_probe(struct i2c_client *client)
55{
56	struct cs530x_priv *cs530x;
57
58	cs530x = devm_kzalloc(&client->dev, sizeof(*cs530x), GFP_KERNEL);
59	if (!cs530x)
60		return -ENOMEM;
61
62	i2c_set_clientdata(client, cs530x);
63
64	cs530x->regmap = devm_regmap_init_i2c(client, &cs530x_regmap_i2c);
65	if (IS_ERR(cs530x->regmap))
66		return dev_err_probe(&client->dev, PTR_ERR(cs530x->regmap),
67				     "Failed to allocate register map\n");
68
69	cs530x->devtype = (uintptr_t)i2c_get_match_data(client);
70	cs530x->dev = &client->dev;
71
72	return cs530x_probe(cs530x);
73}
74
75static struct i2c_driver cs530x_i2c_driver = {
76	.driver = {
77		.name = "cs530x",
78		.of_match_table = cs530x_of_match,
79	},
80	.probe = cs530x_i2c_probe,
81	.id_table = cs530x_i2c_id,
82};
83module_i2c_driver(cs530x_i2c_driver);
84
85MODULE_DESCRIPTION("I2C CS530X driver");
86MODULE_IMPORT_NS("SND_SOC_CS530X");
87MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <paulha@opensource.cirrus.com>");
88MODULE_LICENSE("GPL");