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 { 22 int ret = cs42xx8_probe(&i2c->dev, 23 devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config)); 24 if (ret) 25 return ret; 26 27 pm_runtime_enable(&i2c->dev); 28 pm_request_idle(&i2c->dev); 29 30 return 0; 31 } 32 33 static void cs42xx8_i2c_remove(struct i2c_client *i2c) 34 { 35 pm_runtime_disable(&i2c->dev); 36 } 37 38 static struct i2c_device_id cs42xx8_i2c_id[] = { 39 {"cs42448", (kernel_ulong_t)&cs42448_data}, 40 {"cs42888", (kernel_ulong_t)&cs42888_data}, 41 {} 42 }; 43 MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id); 44 45 static struct i2c_driver cs42xx8_i2c_driver = { 46 .driver = { 47 .name = "cs42xx8", 48 .pm = &cs42xx8_pm, 49 .of_match_table = cs42xx8_of_match, 50 }, 51 .probe_new = cs42xx8_i2c_probe, 52 .remove = cs42xx8_i2c_remove, 53 .id_table = cs42xx8_i2c_id, 54 }; 55 56 module_i2c_driver(cs42xx8_i2c_driver); 57 58 MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver"); 59 MODULE_AUTHOR("Freescale Semiconductor, Inc."); 60 MODULE_LICENSE("GPL"); 61