From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 22 Jul 2009 10:39:24 +0000 (+0200)
Subject: ALSA: hda - Reduce click noise at power-saving
X-Git-Tag: v2.6.32-rc1~732^2~13^2~70
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05ff7e11b78f18ff6819d2c260b7bcc7da0c8f46;p=pandora-kernel.git

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>
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