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, size: sizeof(struct cs35l45_private), GFP_KERNEL); |
23 | if (!cs35l45) |
24 | return -ENOMEM; |
25 | |
26 | i2c_set_clientdata(client, data: cs35l45); |
27 | cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap); |
28 | if (IS_ERR(ptr: cs35l45->regmap)) { |
29 | ret = PTR_ERR(ptr: 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" , 0 }, |
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 | |