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Linux/sound/soc/codecs/tlv320aic23-i2c.c

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  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");
 58 

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