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Merge branch 'topic/jack' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rt5665

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Mark Brown 2017-04-11 16:58:30 +01:00
commit b8d4f7a30b
2 changed files with 53 additions and 0 deletions
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5
include/sound/soc.h
View File

@ -434,6 +434,8 @@ int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
int source, unsigned int freq, int dir);
int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
unsigned int freq_in, unsigned int freq_out);
int snd_soc_codec_set_jack(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, void *data);
int snd_soc_register_card(struct snd_soc_card *card);
int snd_soc_unregister_card(struct snd_soc_card *card);
@ -721,6 +723,7 @@ struct snd_soc_jack_gpio {
/* private: */
struct snd_soc_jack *jack;
struct delayed_work work;
struct notifier_block pm_notifier;
struct gpio_desc *desc;
void *data;
@ -913,6 +916,8 @@ struct snd_soc_codec_driver {
int clk_id, int source, unsigned int freq, int dir);
int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
unsigned int freq_in, unsigned int freq_out);
int (*set_jack)(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, void *data);
/* codec IO */
struct regmap *(*get_regmap)(struct device *);

48
sound/soc/soc-jack.c
View File

@ -19,8 +19,27 @@
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/suspend.h>
#include <trace/events/asoc.h>
/**
* snd_soc_codec_set_jack - configure codec jack.
* @codec: CODEC
* @jack: structure to use for the jack
* @data: can be used if codec driver need extra data for configuring jack
*
* Configures and enables jack detection function.
*/
int snd_soc_codec_set_jack(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, void *data)
{
if (codec->driver->set_jack)
return codec->driver->set_jack(codec, jack, data);
else
return -EINVAL;
}
EXPORT_SYMBOL_GPL(snd_soc_codec_set_jack);
/**
* snd_soc_card_jack_new - Create a new jack
* @card: ASoC card
@ -293,6 +312,27 @@ static void gpio_work(struct work_struct *work)
snd_soc_jack_gpio_detect(gpio);
}
static int snd_soc_jack_pm_notifier(struct notifier_block *nb,
unsigned long action, void *data)
{
struct snd_soc_jack_gpio *gpio =
container_of(nb, struct snd_soc_jack_gpio, pm_notifier);
switch (action) {
case PM_POST_SUSPEND:
case PM_POST_HIBERNATION:
case PM_POST_RESTORE:
/*
* Use workqueue so we do not have to care about running
* concurrently with work triggered by the interrupt handler.
*/
queue_delayed_work(system_power_efficient_wq, &gpio->work, 0);
break;
}
return NOTIFY_DONE;
}
/**
* snd_soc_jack_add_gpios - Associate GPIO pins with an ASoC jack
*
@ -369,6 +409,13 @@ got_gpio:
i, ret);
}
/*
* Register PM notifier so we do not miss state transitions
* happening while system is asleep.
*/
gpios[i].pm_notifier.notifier_call = snd_soc_jack_pm_notifier;
register_pm_notifier(&gpios[i].pm_notifier);
/* Expose GPIO value over sysfs for diagnostic purposes */
gpiod_export(gpios[i].desc, false);
@ -428,6 +475,7 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
for (i = 0; i < count; i++) {
gpiod_unexport(gpios[i].desc);
unregister_pm_notifier(&gpios[i].pm_notifier);
free_irq(gpiod_to_irq(gpios[i].desc), &gpios[i]);
cancel_delayed_work_sync(&gpios[i].work);
gpiod_put(gpios[i].desc);