sound/soc/codecs/tlv320aic23-i2c.c

   1 /*
   2  * ALSA SoC TLV320AIC23 codec driver I2C interface
   3  *
   4  * Author:      Arun KS, <arunks@mistralsolutions.com>
   5  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
   6  *
   7  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/i2c.h>
  15 #include <linux/module.h>
  16 #include <linux/of.h>
  17 #include <linux/regmap.h>
  18 #include <sound/soc.h>
  19
  20 #include "tlv320aic23.h"
  21
  22 static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
  23                                  const struct i2c_device_id *i2c_id)
  24 {
  25         struct regmap *regmap;
  26
  27         if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
  28                 return -EINVAL;
  29
  30         regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
  31         return tlv320aic23_probe(&i2c->dev, regmap);
  32 }
  33
  34 static int tlv320aic23_i2c_remove(struct i2c_client *i2c)
  35 {
  36         snd_soc_unregister_codec(&i2c->dev);
  37         return 0;
  38 }
  39
  40 static const struct i2c_device_id tlv320aic23_id[] = {
  41         {"tlv320aic23", 0},
  42         {}
  43 };
  44
  45 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
  46
  47 static const struct of_device_id tlv320aic23_of_match[] = {
  48         { .compatible = "ti,tlv320aic23", },
  49         { }
  50 };
  51 MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
  52
  53 static struct i2c_driver tlv320aic23_i2c_driver = {
  54         .driver = {
  55                    .name = "tlv320aic23-codec",
  56                    .of_match_table = of_match_ptr(tlv320aic23_of_match),
  57                    },
  58         .probe = tlv320aic23_i2c_probe,
  59         .remove = tlv320aic23_i2c_remove,
  60         .id_table = tlv320aic23_id,
  61 };
  62
  63 module_i2c_driver(tlv320aic23_i2c_driver);
  64
  65 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
  66 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
  67 MODULE_LICENSE("GPL");