sound/soc/codecs/ssm2602-i2c.c

   1 /*
   2  * SSM2602/SSM2603/SSM2604 I2C audio driver
   3  *
   4  * Copyright 2014 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2.
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/i2c.h>
  11 #include <linux/regmap.h>
  12
  13 #include <sound/soc.h>
  14
  15 #include "ssm2602.h"
  16
  17 /*
  18  * ssm2602 2 wire address is determined by GPIO5
  19  * state during powerup.
  20  *    low  = 0x1a
  21  *    high = 0x1b
  22  */
  23 static int ssm2602_i2c_probe(struct i2c_client *client,
  24                              const struct i2c_device_id *id)
  25 {
  26         return ssm2602_probe(&client->dev, id->driver_data,
  27                 devm_regmap_init_i2c(client, &ssm2602_regmap_config));
  28 }
  29
  30 static int ssm2602_i2c_remove(struct i2c_client *client)
  31 {
  32         snd_soc_unregister_codec(&client->dev);
  33         return 0;
  34 }
  35
  36 static const struct i2c_device_id ssm2602_i2c_id[] = {
  37         { "ssm2602", SSM2602 },
  38         { "ssm2603", SSM2602 },
  39         { "ssm2604", SSM2604 },
  40         { }
  41 };
  42 MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
  43
  44 static const struct of_device_id ssm2602_of_match[] = {
  45         { .compatible = "adi,ssm2602", },
  46         { .compatible = "adi,ssm2603", },
  47         { .compatible = "adi,ssm2604", },
  48         { }
  49 };
  50 MODULE_DEVICE_TABLE(of, ssm2602_of_match);
  51
  52 static struct i2c_driver ssm2602_i2c_driver = {
  53         .driver = {
  54                 .name = "ssm2602",
  55                 .of_match_table = ssm2602_of_match,
  56         },
  57         .probe = ssm2602_i2c_probe,
  58         .remove = ssm2602_i2c_remove,
  59         .id_table = ssm2602_i2c_id,
  60 };
  61 module_i2c_driver(ssm2602_i2c_driver);
  62
  63 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 I2C driver");
  64 MODULE_AUTHOR("Cliff Cai");
  65 MODULE_LICENSE("GPL");