ALSA: hda - Fix power of pins used for mute LED with vrefs
authorTakashi Iwai <tiwai@suse.de>
Fri, 20 Mar 2015 17:11:05 +0000 (18:11 +0100)
committerTakashi Iwai <tiwai@suse.de>
Fri, 20 Mar 2015 17:30:48 +0000 (18:30 +0100)
commit6b275b140094b701f7ad15272f0597e9d954e5e4
tree7275155df0eb7b0783521830fcbba083a6171cb1
parentfc0daafeb4acf70839db5baf8ec4b861fff3efef
ALSA: hda - Fix power of pins used for mute LED with vrefs

Some pins are used for controlling the LED with the VREF value.
This patch changes the power behavior of such pins to be constantly
up.  A new state, pin_fixed, is introduced to nid_path to indicate
that the path contains the fixed pin.  This improves also the
readability a bit for other static routes, too.

Then a helper function snd_hda_gen_fix_pin_power() is called from the
codec driver for such fixed pins, and it will create fake paths
containing only these pins with pin_fixed=1 flag.

Reported-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_generic.c
sound/pci/hda/hda_generic.h
sound/pci/hda/patch_sigmatel.c