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kernel/linux-rt-4.4.41/sound/soc/codecs/ssm2602-i2c.c 1.42 KB
5113f6f70   김현기   kernel add
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  /*
   * SSM2602/SSM2603/SSM2604 I2C audio driver
   *
   * Copyright 2014 Analog Devices Inc.
   *
   * Licensed under the GPL-2.
   */
  
  #include <linux/module.h>
  #include <linux/i2c.h>
  #include <linux/regmap.h>
  
  #include <sound/soc.h>
  
  #include "ssm2602.h"
  
  /*
   * ssm2602 2 wire address is determined by GPIO5
   * state during powerup.
   *    low  = 0x1a
   *    high = 0x1b
   */
  static int ssm2602_i2c_probe(struct i2c_client *client,
  			     const struct i2c_device_id *id)
  {
  	return ssm2602_probe(&client->dev, id->driver_data,
  		devm_regmap_init_i2c(client, &ssm2602_regmap_config));
  }
  
  static int ssm2602_i2c_remove(struct i2c_client *client)
  {
  	snd_soc_unregister_codec(&client->dev);
  	return 0;
  }
  
  static const struct i2c_device_id ssm2602_i2c_id[] = {
  	{ "ssm2602", SSM2602 },
  	{ "ssm2603", SSM2602 },
  	{ "ssm2604", SSM2604 },
  	{ }
  };
  MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
  
  static const struct of_device_id ssm2602_of_match[] = {
  	{ .compatible = "adi,ssm2602", },
  	{ .compatible = "adi,ssm2603", },
  	{ .compatible = "adi,ssm2604", },
  	{ }
  };
  MODULE_DEVICE_TABLE(of, ssm2602_of_match);
  
  static struct i2c_driver ssm2602_i2c_driver = {
  	.driver = {
  		.name = "ssm2602",
  		.of_match_table = ssm2602_of_match,
  	},
  	.probe = ssm2602_i2c_probe,
  	.remove = ssm2602_i2c_remove,
  	.id_table = ssm2602_i2c_id,
  };
  module_i2c_driver(ssm2602_i2c_driver);
  
  MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 I2C driver");
  MODULE_AUTHOR("Cliff Cai");
  MODULE_LICENSE("GPL");