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 {
  19         struct regmap *regmap;
  20
  21         regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config);
  22         if (IS_ERR(regmap))
  23                 return PTR_ERR(regmap);
  24
  25         return wm8804_probe(&i2c->dev, regmap);
  26 }
  27
  28 static void wm8804_i2c_remove(struct i2c_client *i2c)
  29 {
  30         wm8804_remove(&i2c->dev);
  31 }
  32
  33 static const struct i2c_device_id wm8804_i2c_id[] = {
  34         { "wm8804", 0 },
  35         { }
  36 };
  37 MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
  38
  39 #if defined(CONFIG_OF)
  40 static const struct of_device_id wm8804_of_match[] = {
  41         { .compatible = "wlf,wm8804", },
  42         { }
  43 };
  44 MODULE_DEVICE_TABLE(of, wm8804_of_match);
  45 #endif
  46
  47 #ifdef CONFIG_ACPI
  48 static const struct acpi_device_id wm8804_acpi_match[] = {
  49         { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
  50         { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
  51         { },
  52 };
  53 MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
  54 #endif
  55
  56 static struct i2c_driver wm8804_i2c_driver = {
  57         .driver = {
  58                 .name = "wm8804",
  59                 .pm = &wm8804_pm,
  60                 .of_match_table = of_match_ptr(wm8804_of_match),
  61                 .acpi_match_table = ACPI_PTR(wm8804_acpi_match),
  62         },
  63         .probe_new = wm8804_i2c_probe,
  64         .remove = wm8804_i2c_remove,
  65         .id_table = wm8804_i2c_id
  66 };
  67
  68 module_i2c_driver(wm8804_i2c_driver);
  69
  70 MODULE_DESCRIPTION("ASoC WM8804 driver - I2C");
  71 MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>");
  72 MODULE_LICENSE("GPL");