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Linux/sound/soc/codecs/wm8804-i2c.c

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  1 /*
  2  * wm8804-i2c.c  --  WM8804 S/PDIF transceiver driver - I2C
  3  *
  4  * Copyright 2015 Cirrus Logic Inc
  5  *
  6  * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License version 2 as
 10  * published by the Free Software Foundation.
 11  */
 12 
 13 #include <linux/init.h>
 14 #include <linux/module.h>
 15 #include <linux/i2c.h>
 16 #include <linux/acpi.h>
 17 
 18 #include "wm8804.h"
 19 
 20 static int wm8804_i2c_probe(struct i2c_client *i2c,
 21                             const struct i2c_device_id *id)
 22 {
 23         struct regmap *regmap;
 24 
 25         regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config);
 26         if (IS_ERR(regmap))
 27                 return PTR_ERR(regmap);
 28 
 29         return wm8804_probe(&i2c->dev, regmap);
 30 }
 31 
 32 static int wm8804_i2c_remove(struct i2c_client *i2c)
 33 {
 34         wm8804_remove(&i2c->dev);
 35         return 0;
 36 }
 37 
 38 static const struct i2c_device_id wm8804_i2c_id[] = {
 39         { "wm8804", 0 },
 40         { }
 41 };
 42 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
 43 
 44 #if defined(CONFIG_OF)
 45 static const struct of_device_id wm8804_of_match[] = {
 46         { .compatible = "wlf,wm8804", },
 47         { }
 48 };
 49 MODULE_DEVICE_TABLE(of, wm8804_of_match);
 50 #endif
 51 
 52 #ifdef CONFIG_ACPI
 53 static const struct acpi_device_id wm8804_acpi_match[] = {
 54         { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
 55         { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
 56         { },
 57 };
 58 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
 59 #endif
 60 
 61 static struct i2c_driver wm8804_i2c_driver = {
 62         .driver = {
 63                 .name = "wm8804",
 64                 .pm = &wm8804_pm,
 65                 .of_match_table = of_match_ptr(wm8804_of_match),
 66                 .acpi_match_table = ACPI_PTR(wm8804_acpi_match),
 67         },
 68         .probe = wm8804_i2c_probe,
 69         .remove = wm8804_i2c_remove,
 70         .id_table = wm8804_i2c_id
 71 };
 72 
 73 module_i2c_driver(wm8804_i2c_driver);
 74 
 75 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C");
 76 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>");
 77 MODULE_LICENSE("GPL");
 78 

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