ALSA: hda - Restore cleared pin controls on resume

Browse source

Many codecs now clear the pin controls at suspend via snd_hda_shutup_pins()
for reducing the click noise at power-off.  But this leaves some pins
uninitialized, and they'll be never recovered after resume.

This patch adds the proper recovery of cleared pin controls on resume.
Also it adds a check of bus->shutdown so that pins won't be cleared at
module unloading.

Reference: Kernel bug 16339
	http://bugzilla.kernel.org/show_bug.cgi?id=16339

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

...

This commit is contained in:

Takashi Iwai 2010-07-05 16:50:13 +02:00

parent f189efcd1c

commit ac0547dc62

2 changed files with 31 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

27

sound/pci/hda/hda_codec.c

View file

5

sound/pci/hda/hda_codec.h

View file