sound/soc/codecs/tlv320aic23-i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * ALSA SoC TLV320AIC23 codec driver I2C interface
   4  *
   5  * Author:      Arun KS, <arunks@mistralsolutions.com>
   6  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
   7  *
   8  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
   9  */
  10
  11 #include <linux/i2c.h>
  12 #include <linux/module.h>
  13 #include <linux/of.h>
  14 #include <linux/regmap.h>
  15 #include <sound/soc.h>
  16
  17 #include "tlv320aic23.h"
  18
  19 static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
  20                                  const struct i2c_device_id *i2c_id)
  21 {
  22         struct regmap *regmap;
  23
  24         if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
  25                 return -EINVAL;
  26
  27         regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
  28         return tlv320aic23_probe(&i2c->dev, regmap);
  29 }
  30
  31 static const struct i2c_device_id tlv320aic23_id[] = {
  32         {"tlv320aic23", 0},
  33         {}
  34 };
  35
  36 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
  37
  38 static const struct of_device_id tlv320aic23_of_match[] = {
  39         { .compatible = "ti,tlv320aic23", },
  40         { }
  41 };
  42 MODULE_DEVICE_TABLE(of, tlv320aic23_of_match);
  43
  44 static struct i2c_driver tlv320aic23_i2c_driver = {
  45         .driver = {
  46                    .name = "tlv320aic23-codec",
  47                    .of_match_table = of_match_ptr(tlv320aic23_of_match),
  48                    },
  49         .probe = tlv320aic23_i2c_probe,
  50         .id_table = tlv320aic23_id,
  51 };
  52
  53 module_i2c_driver(tlv320aic23_i2c_driver);
  54
  55 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
  56 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
  57 MODULE_LICENSE("GPL");