1// SPDX-License-Identifier: GPL-2.0-only
2//
3// CS35L56 HDA audio driver I2C binding
4//
5// Copyright (C) 2023 Cirrus Logic, Inc. and
6//                    Cirrus Logic International Semiconductor Ltd.
7
8#include <linux/i2c.h>
9#include <linux/module.h>
10#include <linux/regmap.h>
11
12#include "cs35l56_hda.h"
13
14static int cs35l56_hda_i2c_probe(struct i2c_client *clt)
15{
16	const struct i2c_device_id *id = i2c_client_get_device_id(clt);
17	struct cs35l56_hda *cs35l56;
18	int ret;
19
20	cs35l56 = devm_kzalloc(&clt->dev, sizeof(*cs35l56), GFP_KERNEL);
21	if (!cs35l56)
22		return -ENOMEM;
23
24	cs35l56->base.dev = &clt->dev;
25
26#ifdef CS35L56_WAKE_HOLD_TIME_US
27	cs35l56->base.can_hibernate = true;
28#endif
29	cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c);
30	if (IS_ERR(cs35l56->base.regmap)) {
31		ret = PTR_ERR(cs35l56->base.regmap);
32		dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",
33			ret);
34		return ret;
35	}
36
37	ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, clt->addr);
38	if (ret)
39		return ret;
40	ret = cs35l56_irq_request(&cs35l56->base, clt->irq);
41	if (ret < 0)
42		cs35l56_hda_remove(cs35l56->base.dev);
43
44	return ret;
45}
46
47static void cs35l56_hda_i2c_remove(struct i2c_client *clt)
48{
49	cs35l56_hda_remove(&clt->dev);
50}
51
52static const struct i2c_device_id cs35l56_hda_i2c_id[] = {
53	{ "cs35l54-hda", 0x3554 },
54	{ "cs35l56-hda", 0x3556 },
55	{ "cs35l57-hda", 0x3557 },
56	{}
57};
58
59static const struct acpi_device_id cs35l56_acpi_hda_match[] = {
60	{ "CSC3554", 0 },
61	{ "CSC3556", 0 },
62	{ "CSC3557", 0 },
63	{}
64};
65MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);
66
67static struct i2c_driver cs35l56_hda_i2c_driver = {
68	.driver = {
69		.name		  = "cs35l56-hda",
70		.acpi_match_table = cs35l56_acpi_hda_match,
71		.pm		  = &cs35l56_hda_pm_ops,
72	},
73	.id_table	= cs35l56_hda_i2c_id,
74	.probe		= cs35l56_hda_i2c_probe,
75	.remove		= cs35l56_hda_i2c_remove,
76};
77module_i2c_driver(cs35l56_hda_i2c_driver);
78
79MODULE_DESCRIPTION("HDA CS35L56 I2C driver");
80MODULE_IMPORT_NS(SND_HDA_SCODEC_CS35L56);
81MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
82MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
83MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
84MODULE_LICENSE("GPL");
85