1// SPDX-License-Identifier: GPL-2.0-only
2//
3// CS35L56 ALSA SoC audio driver I2C binding
4//
5// Copyright (C) 2023 Cirrus Logic, Inc. and
6//                    Cirrus Logic International Semiconductor Ltd.
7
8#include <linux/acpi.h>
9#include <linux/i2c.h>
10#include <linux/module.h>
11#include <linux/moduleparam.h>
12#include <linux/regmap.h>
13#include <linux/slab.h>
14#include <linux/types.h>
15
16#include "cs35l56.h"
17
18static int cs35l56_i2c_probe(struct i2c_client *client)
19{
20	struct cs35l56_private *cs35l56;
21	struct device *dev = &client->dev;
22	const struct regmap_config *regmap_config = &cs35l56_regmap_i2c;
23	int ret;
24
25	cs35l56 = devm_kzalloc(dev, sizeof(struct cs35l56_private), GFP_KERNEL);
26	if (!cs35l56)
27		return -ENOMEM;
28
29	cs35l56->base.dev = dev;
30	cs35l56->base.can_hibernate = true;
31
32	i2c_set_clientdata(client, cs35l56);
33	cs35l56->base.regmap = devm_regmap_init_i2c(client, regmap_config);
34	if (IS_ERR(cs35l56->base.regmap)) {
35		ret = PTR_ERR(cs35l56->base.regmap);
36		return dev_err_probe(cs35l56->base.dev, ret, "Failed to allocate register map\n");
37	}
38
39	ret = cs35l56_common_probe(cs35l56);
40	if (ret != 0)
41		return ret;
42
43	ret = cs35l56_init(cs35l56);
44	if (ret == 0)
45		ret = cs35l56_irq_request(&cs35l56->base, client->irq);
46	if (ret < 0)
47		cs35l56_remove(cs35l56);
48
49	return ret;
50}
51
52static void cs35l56_i2c_remove(struct i2c_client *client)
53{
54	struct cs35l56_private *cs35l56 = i2c_get_clientdata(client);
55
56	cs35l56_remove(cs35l56);
57}
58
59static const struct i2c_device_id cs35l56_id_i2c[] = {
60	{ "cs35l56", 0 },
61	{}
62};
63MODULE_DEVICE_TABLE(i2c, cs35l56_id_i2c);
64
65#ifdef CONFIG_ACPI
66static const struct acpi_device_id cs35l56_asoc_acpi_match[] = {
67	{ "CSC355C", 0 },
68	{},
69};
70MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match);
71#endif
72
73static struct i2c_driver cs35l56_i2c_driver = {
74	.driver = {
75		.name		= "cs35l56",
76		.pm = pm_ptr(&cs35l56_pm_ops_i2c_spi),
77		.acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match),
78	},
79	.id_table	= cs35l56_id_i2c,
80	.probe		= cs35l56_i2c_probe,
81	.remove		= cs35l56_i2c_remove,
82};
83
84module_i2c_driver(cs35l56_i2c_driver);
85
86MODULE_DESCRIPTION("ASoC CS35L56 I2C driver");
87MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE);
88MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
89MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
90MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
91MODULE_LICENSE("GPL");
92