[ALSA] Add experimental support of aggressive AC97 power-saving mode
authorTakashi Iwai <tiwai@suse.de>
Tue, 27 Jun 2006 16:28:53 +0000 (18:28 +0200)
committerJaroslav Kysela <perex@suse.cz>
Sat, 23 Sep 2006 08:37:08 +0000 (10:37 +0200)
commit6dbe662874ba08585eaf732d126762c25ac8e3f7
tree7460c36d4d848f223b682f7a700866bcf6dbc7d5
parent2b29b13c5794f648cd5e839796496704d787f5a6
[ALSA] Add experimental support of aggressive AC97 power-saving mode

Added CONFIG_SND_AC97_POWER_SAVE kernel config to enable the support
of aggressive AC97 power-saving mode.  In this mode, the AC97
powerdown register bits are dynamically controlled at each open/close
of PCM streams.
The mode is activated via power_save option for snd-ac97-codec
driver.  As default it's off.  It can be turned on/off on the fly
via sysfs, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
include/sound/ac97_codec.h
sound/drivers/Kconfig
sound/pci/ac97/ac97_codec.c
sound/pci/ac97/ac97_pcm.c
sound/pci/intel8x0.c
sound/pci/via82xx.c