1 /* 2 * Cirrus Logic CS42448/CS42888 Audio CODEC DAI I2C driver 3 * 4 * Copyright (C) 2014 Freescale Semiconductor, Inc. 5 * 6 * Author: Nicolin Chen <Guangyu.Chen@freescale.com> 7 * 8 * This file is licensed under the terms of the GNU General Public License 9 * version 2. This program is licensed "as is" without any warranty of any 10 * kind, whether express or implied. 11 */ 12 13 #include <linux/i2c.h> 14 #include <linux/module.h> 15 #include <linux/pm_runtime.h> 16 #include <sound/soc.h> 17 18 #include "cs42xx8.h" 19 20 static int cs42xx8_i2c_probe(struct i2c_client *i2c, 21 const struct i2c_device_id *id) 22 { 23 u32 ret = cs42xx8_probe(&i2c->dev, 24 devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config)); 25 if (ret) 26 return ret; 27 28 pm_runtime_enable(&i2c->dev); 29 pm_request_idle(&i2c->dev); 30 31 return 0; 32 } 33 34 static int cs42xx8_i2c_remove(struct i2c_client *i2c) 35 { 36 snd_soc_unregister_codec(&i2c->dev); 37 pm_runtime_disable(&i2c->dev); 38 39 return 0; 40 } 41 42 static struct i2c_device_id cs42xx8_i2c_id[] = { 43 {"cs42448", (kernel_ulong_t)&cs42448_data}, 44 {"cs42888", (kernel_ulong_t)&cs42888_data}, 45 {} 46 }; 47 MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id); 48 49 static struct i2c_driver cs42xx8_i2c_driver = { 50 .driver = { 51 .name = "cs42xx8", 52 .owner = THIS_MODULE, 53 .pm = &cs42xx8_pm, 54 }, 55 .probe = cs42xx8_i2c_probe, 56 .remove = cs42xx8_i2c_remove, 57 .id_table = cs42xx8_i2c_id, 58 }; 59 60 module_i2c_driver(cs42xx8_i2c_driver); 61 62 MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver"); 63 MODULE_AUTHOR("Freescale Semiconductor, Inc."); 64 MODULE_LICENSE("GPL"); 65