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/regmap.h> 17 #include <sound/soc.h> 18 19 #include "tlv320aic23.h" 20 21 static int tlv320aic23_i2c_probe(struct i2c_client *i2c, 22 const struct i2c_device_id *i2c_id) 23 { 24 struct regmap *regmap; 25 26 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 27 return -EINVAL; 28 29 regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap); 30 return tlv320aic23_probe(&i2c->dev, regmap); 31 } 32 33 static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c) 34 { 35 snd_soc_unregister_codec(&i2c->dev); 36 return 0; 37 } 38 39 static const struct i2c_device_id tlv320aic23_id[] = { 40 {"tlv320aic23", 0}, 41 {} 42 }; 43 44 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); 45 46 static struct i2c_driver tlv320aic23_i2c_driver = { 47 .driver = { 48 .name = "tlv320aic23-codec", 49 }, 50 .probe = tlv320aic23_i2c_probe, 51 .remove = __exit_p(tlv320aic23_i2c_remove), 52 .id_table = tlv320aic23_id, 53 }; 54 55 module_i2c_driver(tlv320aic23_i2c_driver); 56 57 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C"); 58 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 59 MODULE_LICENSE("GPL"); 60