mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 23:06:39 +07:00
1a60667fc8
Currently both the oscillator and the PLL are powered up in set_bias_level. This can be problematic when using output clocks from the wm8804 for other devices. The snd_soc_codec_set_pll API defines that a clock should be available once the call returns, however, with all the clocking controlled in set_bias_level this is not currently the case. This patch enables pm_runtime for the wm8804, enabling both the regulators and the oscillator when the chip resumes, and enabling the PLL in the snd_soc_codec_set_pll call. Naturally the enabling the PLL will also cause the chip to resume. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
|
|
* wm8804-i2c.c -- WM8804 S/PDIF transceiver driver - I2C
|
|
*
|
|
* Copyright 2015 Cirrus Logic Inc
|
|
*
|
|
* Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/i2c.h>
|
|
|
|
#include "wm8804.h"
|
|
|
|
static int wm8804_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct regmap *regmap;
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
return wm8804_probe(&i2c->dev, regmap);
|
|
}
|
|
|
|
static int wm8804_i2c_remove(struct i2c_client *i2c)
|
|
{
|
|
wm8804_remove(&i2c->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id wm8804_i2c_id[] = {
|
|
{ "wm8804", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
|
|
|
|
static const struct of_device_id wm8804_of_match[] = {
|
|
{ .compatible = "wlf,wm8804", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, wm8804_of_match);
|
|
|
|
static struct i2c_driver wm8804_i2c_driver = {
|
|
.driver = {
|
|
.name = "wm8804",
|
|
.owner = THIS_MODULE,
|
|
.pm = &wm8804_pm,
|
|
.of_match_table = wm8804_of_match,
|
|
},
|
|
.probe = wm8804_i2c_probe,
|
|
.remove = wm8804_i2c_remove,
|
|
.id_table = wm8804_i2c_id
|
|
};
|
|
|
|
module_i2c_driver(wm8804_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC WM8804 driver - I2C");
|
|
MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>");
|
|
MODULE_LICENSE("GPL");
|