tree d19b9ea9530321a0513863ccd32cf5f3f3f3e343
parent 05e870d29aef0bf43124b2bd424103987fadd5b5
author Takashi Iwai <tiwai@suse.de> 1248259164 +0200
committer Takashi Iwai <tiwai@suse.de> 1248259164 +0200

ALSA: hda - Reduce click noise at power-saving

Add some tricks to reduce the click noise at powering down to D3
in the power saving mode on STAC/IDT codecs.
The key seems to be to reset PINs before the power-down, and some
delay before entering D3.  The needed delay is significantly long,
but I don't know why.

Signed-off-by: Takashi Iwai <tiwai@suse.de>