1 /*
2 * Cirrus Logic CS42448/CS42888 Audio CODEC DAI I2C driver
3 *
4 * Copyright (C) 2014 Freescale Semiconductor, Inc.
5 *
6 * Author: Nicolin Chen <Guangyu.Chen@freescale.com>
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of any
10 * kind, whether express or implied.
11 */
12
13 #include <linux/i2c.h>
14 #include <linux/module.h>
15 #include <linux/pm_runtime.h>
16 #include <sound/soc.h>
17
18 #include "cs42xx8.h"
19
cs42xx8_i2c_probe(struct i2c_client * i2c)20 static int cs42xx8_i2c_probe(struct i2c_client *i2c)
21 {
22 int ret = cs42xx8_probe(&i2c->dev,
23 devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config));
24 if (ret)
25 return ret;
26
27 pm_runtime_enable(&i2c->dev);
28 pm_request_idle(&i2c->dev);
29
30 return 0;
31 }
32
cs42xx8_i2c_remove(struct i2c_client * i2c)33 static void cs42xx8_i2c_remove(struct i2c_client *i2c)
34 {
35 pm_runtime_disable(&i2c->dev);
36 }
37
38 static struct i2c_device_id cs42xx8_i2c_id[] = {
39 {"cs42448", (kernel_ulong_t)&cs42448_data},
40 {"cs42888", (kernel_ulong_t)&cs42888_data},
41 {}
42 };
43 MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);
44
45 static struct i2c_driver cs42xx8_i2c_driver = {
46 .driver = {
47 .name = "cs42xx8",
48 .pm = &cs42xx8_pm,
49 .of_match_table = cs42xx8_of_match,
50 },
51 .probe_new = cs42xx8_i2c_probe,
52 .remove = cs42xx8_i2c_remove,
53 .id_table = cs42xx8_i2c_id,
54 };
55
56 module_i2c_driver(cs42xx8_i2c_driver);
57
58 MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver");
59 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
60 MODULE_LICENSE("GPL");
61