1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
// SPDX-License-Identifier: GPL-2.0
//
// cs35l41-i2c.c -- CS35l41 I2C driver
//
// Copyright 2017-2021 Cirrus Logic, Inc.
//
// Author: David Rhodes <david.rhodes@cirrus.com>
#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include "cs35l41.h"
static const struct i2c_device_id cs35l41_id_i2c[] = {
{ "cs35l40", 0 },
{ "cs35l41", 0 },
{ "cs35l51", 0 },
{ "cs35l53", 0 },
{}
};
MODULE_DEVICE_TABLE(i2c, cs35l41_id_i2c);
static int cs35l41_i2c_probe(struct i2c_client *client)
{
struct cs35l41_private *cs35l41;
struct device *dev = &client->dev;
struct cs35l41_hw_cfg *hw_cfg = dev_get_platdata(dev);
const struct regmap_config *regmap_config = &cs35l41_regmap_i2c;
int ret;
cs35l41 = devm_kzalloc(dev, sizeof(struct cs35l41_private), GFP_KERNEL);
if (!cs35l41)
return -ENOMEM;
cs35l41->dev = dev;
cs35l41->irq = client->irq;
i2c_set_clientdata(client, cs35l41);
cs35l41->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(cs35l41->regmap)) {
ret = PTR_ERR(cs35l41->regmap);
dev_err(cs35l41->dev, "Failed to allocate register map: %d\n", ret);
return ret;
}
return cs35l41_probe(cs35l41, hw_cfg);
}
static void cs35l41_i2c_remove(struct i2c_client *client)
{
struct cs35l41_private *cs35l41 = i2c_get_clientdata(client);
cs35l41_remove(cs35l41);
}
#ifdef CONFIG_OF
static const struct of_device_id cs35l41_of_match[] = {
{ .compatible = "cirrus,cs35l40" },
{ .compatible = "cirrus,cs35l41" },
{},
};
MODULE_DEVICE_TABLE(of, cs35l41_of_match);
#endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id cs35l41_acpi_match[] = {
{ "CSC3541", 0 }, /* Cirrus Logic PnP ID + part ID */
{},
};
MODULE_DEVICE_TABLE(acpi, cs35l41_acpi_match);
#endif
static struct i2c_driver cs35l41_i2c_driver = {
.driver = {
.name = "cs35l41",
.pm = &cs35l41_pm_ops,
.of_match_table = of_match_ptr(cs35l41_of_match),
.acpi_match_table = ACPI_PTR(cs35l41_acpi_match),
},
.id_table = cs35l41_id_i2c,
.probe = cs35l41_i2c_probe,
.remove = cs35l41_i2c_remove,
};
module_i2c_driver(cs35l41_i2c_driver);
MODULE_DESCRIPTION("I2C CS35L41 driver");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
MODULE_LICENSE("GPL");
|
