1 // SPDX-License-Identifier: GPL-2.0
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
16 static 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 cs35l45->irq = client->irq;
36 cs35l45->bus_type = CONTROL_BUS_I2C;
37 cs35l45->i2c_addr = client->addr;
38
39 return cs35l45_probe(cs35l45);
40 }
41
42 static void cs35l45_i2c_remove(struct i2c_client *client)
43 {
44 struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);
45
46 cs35l45_remove(cs35l45);
47 }
48
49 static const struct of_device_id cs35l45_of_match[] = {
50 { .compatible = "cirrus,cs35l45" },
51 {},
52 };
53 MODULE_DEVICE_TABLE(of, cs35l45_of_match);
54
55 static const struct i2c_device_id cs35l45_id_i2c[] = {
56 { "cs35l45" },
57 {}
58 };
59 MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);
60
61 static struct i2c_driver cs35l45_i2c_driver = {
62 .driver = {
63 .name = "cs35l45",
64 .of_match_table = cs35l45_of_match,
65 .pm = pm_ptr(&cs35l45_pm_ops),
66 },
67 .id_table = cs35l45_id_i2c,
68 .probe = cs35l45_i2c_probe,
69 .remove = cs35l45_i2c_remove,
70 };
71 module_i2c_driver(cs35l45_i2c_driver);
72
73 MODULE_DESCRIPTION("I2C CS35L45 driver");
74 MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
75 MODULE_LICENSE("GPL");
76 MODULE_IMPORT_NS(SND_SOC_CS35L45);
77
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