tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
31 i2c_set_clientdata(client, cs35l56);
32 cs35l56->base.regmap = devm_regmap_init_i2c(client, regmap_config);
33 if (IS_ERR(cs35l56->base.regmap)) {
34 ret = PTR_ERR(cs35l56->base.regmap);
35 return dev_err_probe(cs35l56->base.dev, ret, "Failed to allocate register map\n");
36 }
37
38 ret = cs35l56_common_probe(cs35l56);
39 if (ret != 0)
40 return ret;
41
42 ret = cs35l56_init(cs35l56);
43 if (ret == 0)
44 ret = cs35l56_irq_request(&cs35l56->base, client->irq);
45 if (ret < 0)
46 cs35l56_remove(cs35l56);
47
48 return ret;
49}
50
51static void cs35l56_i2c_remove(struct i2c_client *client)
52{
53 struct cs35l56_private *cs35l56 = i2c_get_clientdata(client);
54
55 cs35l56_remove(cs35l56);
56}
57
58static const struct i2c_device_id cs35l56_id_i2c[] = {
59 { "cs35l56", 0 },
60 {}
61};
62MODULE_DEVICE_TABLE(i2c, cs35l56_id_i2c);
63
64#ifdef CONFIG_ACPI
65static const struct acpi_device_id cs35l56_asoc_acpi_match[] = {
66 { "CSC355C", 0 },
67 {},
68};
69MODULE_DEVICE_TABLE(acpi, cs35l56_asoc_acpi_match);
70#endif
71
72static struct i2c_driver cs35l56_i2c_driver = {
73 .driver = {
74 .name = "cs35l56",
75 .pm = &cs35l56_pm_ops_i2c_spi,
76 .acpi_match_table = ACPI_PTR(cs35l56_asoc_acpi_match),
77 },
78 .id_table = cs35l56_id_i2c,
79 .probe = cs35l56_i2c_probe,
80 .remove = cs35l56_i2c_remove,
81};
82
83module_i2c_driver(cs35l56_i2c_driver);
84
85MODULE_DESCRIPTION("ASoC CS35L56 I2C driver");
86MODULE_IMPORT_NS(SND_SOC_CS35L56_CORE);
87MODULE_IMPORT_NS(SND_SOC_CS35L56_SHARED);
88MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
89MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>");
90MODULE_LICENSE("GPL");