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, size: 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, data: cs35l56);
33 cs35l56->base.regmap = devm_regmap_init_i2c(client, regmap_config);
34 if (IS_ERR(ptr: cs35l56->base.regmap)) {
35 ret = PTR_ERR(ptr: cs35l56->base.regmap);
36 return dev_err_probe(dev: cs35l56->base.dev, err: ret, fmt: "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: &cs35l56->base, irq: 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

source code of linux/sound/soc/codecs/cs35l56-i2c.c