Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/hda/codecs/side-codecs/cs35l56_hda_i2c.c
29268 views
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


14
static 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


30
	cs35l56->base.regmap = devm_regmap_init_i2c(clt, &cs35l56_regmap_i2c);

31
	if (IS_ERR(cs35l56->base.regmap)) {

32
		ret = PTR_ERR(cs35l56->base.regmap);

33
		dev_err(cs35l56->base.dev, "Failed to allocate register map: %d\n",

34
			ret);

35
		return ret;

36
	}

37


38
	ret = cs35l56_hda_common_probe(cs35l56, id->driver_data, clt->addr);

39
	if (ret)

40
		return ret;

41
	ret = cs35l56_irq_request(&cs35l56->base, clt->irq);

42
	if (ret < 0)

43
		cs35l56_hda_remove(cs35l56->base.dev);

44


45
	return ret;

46
}

47


48
static void cs35l56_hda_i2c_remove(struct i2c_client *clt)

49
{

50
	cs35l56_hda_remove(&clt->dev);

51
}

52


53
static const struct i2c_device_id cs35l56_hda_i2c_id[] = {

54
	{ "cs35l54-hda", 0x3554 },

55
	{ "cs35l56-hda", 0x3556 },

56
	{ "cs35l57-hda", 0x3557 },

57
	{}

58
};

59


60
static const struct acpi_device_id cs35l56_acpi_hda_match[] = {

61
	{ "CSC3554", 0 },

62
	{ "CSC3556", 0 },

63
	{ "CSC3557", 0 },

64
	{}

65
};

66
MODULE_DEVICE_TABLE(acpi, cs35l56_acpi_hda_match);

67


68
static struct i2c_driver cs35l56_hda_i2c_driver = {

69
	.driver = {

70
		.name		  = "cs35l56-hda",

71
		.acpi_match_table = cs35l56_acpi_hda_match,

72
		.pm		  = &cs35l56_hda_pm_ops,

73
	},

74
	.id_table	= cs35l56_hda_i2c_id,

75
	.probe		= cs35l56_hda_i2c_probe,

76
	.remove		= cs35l56_hda_i2c_remove,

77
};

78
module_i2c_driver(cs35l56_hda_i2c_driver);

79


80
MODULE_DESCRIPTION("HDA CS35L56 I2C driver");

81
MODULE_IMPORT_NS("SND_HDA_SCODEC_CS35L56");

82
MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED");

83
MODULE_AUTHOR("Richard Fitzgerald <[email protected]>");

84
MODULE_AUTHOR("Simon Trimmer <[email protected]>");

85
MODULE_LICENSE("GPL");

86


87