From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 18 Feb 2015 14:39:59 +0000 (+0100)
Subject: ALSA: hda - Move codec suspend/resume to codec driver
X-Git-Tag: omap-for-v4.2/o2_dc~120^2~6^2~43^2~11^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59ed1eade1d6ec24751baca99305f9713a5d779e;p=pandora-kernel.git

ALSA: hda - Move codec suspend/resume to codec driver

This patch moves the suspend/resume mechanisms down to each codec
driver level, as we have a proper codec driver bound on the bus now.
Then we get the asynchronous PM gratis without fiddling much in the
driver level.

As a soft-landing transition, implement the common suspend/resume pm
ops for hda_codec_driver and keep the each codec driver intact.  Only
the callers of suspend/resume in the controller side (azx_suspend()
and azx_resume()) are removed.

Another involved place is azx_bus_reset() calling the temporary
suspend and resume as a hackish method of bus reset.  The HD-audio
core provide a helper function snd_hda_bus_reset() instead.

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