LXR linux/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
  22static 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
  34static int tlv320aic23_i2c_remove(struct i2c_client *i2c)
  35{
  36        snd_soc_unregister_codec(&i2c->dev);
  37        return 0;
  38}
  39
  40static const struct i2c_device_id tlv320aic23_id[] = {
  41        {"tlv320aic23", 0},
  42        {}
  43};
  44
  45MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
  46
  47static const struct of_device_id tlv320aic23_of_match[] = {
  48        { .compatible = "ti,tlv320aic23", },
  49        { }
  50};
  51MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
  52
  53static 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
  63module_i2c_driver(tlv320aic23_i2c_driver);
  64
  65MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
  66MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
  67MODULE_LICENSE("GPL");
  68