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 { 21 struct regmap *regmap; 22 23 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 24 return -EINVAL; 25 26 regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap); 27 return tlv320aic23_probe(&i2c->dev, regmap); 28 } 29 30 static const struct i2c_device_id tlv320aic23_id[] = { 31 {"tlv320aic23"}, 32 {} 33 }; 34 35 MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); 36 37 #ifdef CONFIG_OF 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 #endif 44 45 static struct i2c_driver tlv320aic23_i2c_driver = { 46 .driver = { 47 .name = "tlv320aic23-codec", 48 .of_match_table = of_match_ptr(tlv320aic23_of_match), 49 }, 50 .probe = tlv320aic23_i2c_probe, 51 .id_table = tlv320aic23_id, 52 }; 53 54 module_i2c_driver(tlv320aic23_i2c_driver); 55 56 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C"); 57 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 58 MODULE_LICENSE("GPL"); 59