sound/soc/codecs/wm8804-i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * wm8804-i2c.c  --  WM8804 S/PDIF transceiver driver - I2C
   4  *
   5  * Copyright 2015 Cirrus Logic Inc
   6  *
   7  * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/module.h>
  12 #include <linux/i2c.h>
  13 #include <linux/acpi.h>
  14
  15 #include "wm8804.h"
  16
  17 static int wm8804_i2c_probe(struct i2c_client *i2c,
  18                             const struct i2c_device_id *id)
  19 {
  20         struct regmap *regmap;
  21
  22         regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config);
  23         if (IS_ERR(regmap))
  24                 return PTR_ERR(regmap);
  25
  26         return wm8804_probe(&i2c->dev, regmap);
  27 }
  28
  29 static int wm8804_i2c_remove(struct i2c_client *i2c)
  30 {
  31         wm8804_remove(&i2c->dev);
  32         return 0;
  33 }
  34
  35 static const struct i2c_device_id wm8804_i2c_id[] = {
  36         { "wm8804", 0 },
  37         { }
  38 };
  39 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
  40
  41 #if defined(CONFIG_OF)
  42 static const struct of_device_id wm8804_of_match[] = {
  43         { .compatible = "wlf,wm8804", },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(of, wm8804_of_match);
  47 #endif
  48
  49 #ifdef CONFIG_ACPI
  50 static const struct acpi_device_id wm8804_acpi_match[] = {
  51         { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
  52         { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
  53         { },
  54 };
  55 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
  56 #endif
  57
  58 static struct i2c_driver wm8804_i2c_driver = {
  59         .driver = {
  60                 .name = "wm8804",
  61                 .pm = &wm8804_pm,
  62                 .of_match_table = of_match_ptr(wm8804_of_match),
  63                 .acpi_match_table = ACPI_PTR(wm8804_acpi_match),
  64         },
  65         .probe = wm8804_i2c_probe,
  66         .remove = wm8804_i2c_remove,
  67         .id_table = wm8804_i2c_id
  68 };
  69
  70 module_i2c_driver(wm8804_i2c_driver);
  71
  72 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C");
  73 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>");
  74 MODULE_LICENSE("GPL");