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 #ifdef CONFIG_OF 39 static const struct of_device_id tlv320aic23_of_match[] = { 40 { .compatible = "ti,tlv320aic23", }, 41 { } 42 }; 43 MODULE_DEVICE_TABLE(of, tlv320aic23_of_match); 44 #endif 45 46 static struct i2c_driver tlv320aic23_i2c_driver = { 47 .driver = { 48 .name = "tlv320aic23-codec", 49 .of_match_table = of_match_ptr(tlv320aic23_of_match), 50 }, 51 .probe = tlv320aic23_i2c_probe, 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