tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2//
3// cs35l45-i2c.c -- CS35L45 I2C driver
4//
5// Copyright 2019-2022 Cirrus Logic, Inc.
6//
7// Author: James Schulman <james.schulman@cirrus.com>
8
9#include <linux/device.h>
10#include <linux/module.h>
11#include <linux/i2c.h>
12#include <linux/regmap.h>
13
14#include "cs35l45.h"
15
16static int cs35l45_i2c_probe(struct i2c_client *client)
17{
18 struct cs35l45_private *cs35l45;
19 struct device *dev = &client->dev;
20 int ret;
21
22 cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
23 if (!cs35l45)
24 return -ENOMEM;
25
26 i2c_set_clientdata(client, cs35l45);
27 cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap);
28 if (IS_ERR(cs35l45->regmap)) {
29 ret = PTR_ERR(cs35l45->regmap);
30 dev_err(dev, "Failed to allocate register map: %d\n", ret);
31 return ret;
32 }
33
34 cs35l45->dev = dev;
35
36 return cs35l45_probe(cs35l45);
37}
38
39static void cs35l45_i2c_remove(struct i2c_client *client)
40{
41 struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);
42
43 cs35l45_remove(cs35l45);
44}
45
46static const struct of_device_id cs35l45_of_match[] = {
47 { .compatible = "cirrus,cs35l45" },
48 {},
49};
50MODULE_DEVICE_TABLE(of, cs35l45_of_match);
51
52static const struct i2c_device_id cs35l45_id_i2c[] = {
53 { "cs35l45", 0 },
54 {}
55};
56MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);
57
58static struct i2c_driver cs35l45_i2c_driver = {
59 .driver = {
60 .name = "cs35l45",
61 .of_match_table = cs35l45_of_match,
62 .pm = &cs35l45_pm_ops,
63 },
64 .id_table = cs35l45_id_i2c,
65 .probe_new = cs35l45_i2c_probe,
66 .remove = cs35l45_i2c_remove,
67};
68module_i2c_driver(cs35l45_i2c_driver);
69
70MODULE_DESCRIPTION("I2C CS35L45 driver");
71MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
72MODULE_LICENSE("Dual BSD/GPL");
73MODULE_IMPORT_NS(SND_SOC_CS35L45);
74MODULE_IMPORT_NS(SND_SOC_CS35L45_TABLES);