cs42xx8-i2c.c
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/*
* Cirrus Logic CS42448/CS42888 Audio CODEC DAI I2C driver
*
* Copyright (C) 2014 Freescale Semiconductor, Inc.
*
* Author: Nicolin Chen <Guangyu.Chen@freescale.com>
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/soc.h>
#include "cs42xx8.h"
static int cs42xx8_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
u32 ret = cs42xx8_probe(&i2c->dev,
devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config));
if (ret)
return ret;
pm_runtime_enable(&i2c->dev);
pm_request_idle(&i2c->dev);
return 0;
}
static int cs42xx8_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
pm_runtime_disable(&i2c->dev);
return 0;
}
static struct i2c_device_id cs42xx8_i2c_id[] = {
{"cs42448", (kernel_ulong_t)&cs42448_data},
{"cs42888", (kernel_ulong_t)&cs42888_data},
{}
};
MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);
static struct i2c_driver cs42xx8_i2c_driver = {
.driver = {
.name = "cs42xx8",
.owner = THIS_MODULE,
.pm = &cs42xx8_pm,
},
.probe = cs42xx8_i2c_probe,
.remove = cs42xx8_i2c_remove,
.id_table = cs42xx8_i2c_id,
};
module_i2c_driver(cs42xx8_i2c_driver);
MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver");
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_LICENSE("GPL");