From 1293617cddc40971917150e3f5bf66b7306e2e7e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 13 Jan 2015 11:24:08 +0100 Subject: ALSA: ak411x: Add PM helper functions Define snd_ak4114_suspend() and snd_ak4114_resume() functions to handle PM properly, stopping and restarting the work at PM. Currently only ice1712/juli.c deals with the PM and ak4114, so fix the calls there appropriately. The same PM functions are defined in ak4113.c, too, although they aren't currently called yet (ice1712/quartet.c may be enhanced to support PM later). Acked-by: Jaroslav Kysela Tested-by: Pavel Hofman Signed-off-by: Takashi Iwai --- sound/i2c/other/ak4113.c | 16 ++++++++++++++++ sound/i2c/other/ak4114.c | 16 ++++++++++++++++ 2 files changed, 32 insertions(+) (limited to 'sound/i2c') diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c index c6bba99a90b2..c2b14d981fa1 100644 --- a/sound/i2c/other/ak4113.c +++ b/sound/i2c/other/ak4113.c @@ -636,3 +636,19 @@ static void ak4113_stats(struct work_struct *work) if (atomic_dec_and_test(&chip->wq_processing)) schedule_delayed_work(&chip->work, HZ / 10); } + +#ifdef CONFIG_PM +void snd_ak4113_suspend(struct ak4113 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); +} +EXPORT_SYMBOL(snd_ak4113_suspend); + +void snd_ak4113_resume(struct ak4113 *chip) +{ + atomic_dec(&chip->wq_processing); + snd_ak4113_reinit(chip); +} +EXPORT_SYMBOL(snd_ak4113_resume); +#endif diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c index f6ee1e7a9bbd..ee639f57b664 100644 --- a/sound/i2c/other/ak4114.c +++ b/sound/i2c/other/ak4114.c @@ -621,3 +621,19 @@ static void ak4114_stats(struct work_struct *work) if (atomic_dec_and_test(&chip->wq_processing)) schedule_delayed_work(&chip->work, HZ / 10); } + +#ifdef CONFIG_PM +void snd_ak4114_suspend(struct ak4114 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); +} +EXPORT_SYMBOL(snd_ak4114_suspend); + +void snd_ak4114_resume(struct ak4114 *chip) +{ + atomic_dec(&chip->wq_processing); + snd_ak4114_reinit(chip); +} +EXPORT_SYMBOL(snd_ak4114_resume); +#endif -- cgit