From d5021ec9fc32edc6f512c2375923d757e9825f6a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 22 Mar 2010 12:06:30 +0000 Subject: ASoC: Add a notifier for jack status changes Some systems provide both mechanical and electrical detection of jack status changes. On such systems power savings can be achieved by only enabling the electrical detection methods when physical insertion has been detected. Begin supporting such systems by providing a notifier for jack status changes which can be used to trigger any reconfiguration. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- include/sound/soc.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/sound') diff --git a/include/sound/soc.h b/include/sound/soc.h index b8bac6ae624..80dfac16272 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -15,6 +15,7 @@ #include #include +#include #include #include #include @@ -261,6 +262,10 @@ int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type, void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, struct snd_soc_jack_pin *pins); +void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, + struct notifier_block *nb); +void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, + struct notifier_block *nb); #ifdef CONFIG_GPIOLIB int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); @@ -364,6 +369,7 @@ struct snd_soc_jack { struct snd_soc_card *card; struct list_head pins; int status; + struct blocking_notifier_head notifier; }; /* SoC PCM stream information */ -- cgit v1.2.3-18-g5258