From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: Re: question on snd_power_change_state()
Date: Fri, 11 Mar 2011 13:53:13 +0000
Message-ID: <20110311135313.GA29920@sirena.org.uk>
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	<201103111320.46750.oneukum@suse.de> <s5hmxl1kf92.wl%tiwai@suse.de>
	<201103111342.44722.oneukum@suse.de> <s5hk4g5kdg7.wl%tiwai@suse.de>
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To: Takashi Iwai <tiwai@suse.de>
Cc: Oliver Neukum <oneukum@suse.de>, alsa-devel@alsa-project.org
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On Fri, Mar 11, 2011 at 02:13:12PM +0100, Takashi Iwai wrote:
> Oliver Neukum wrote:

> > A helper for restoring all mixer settings that a device has lost due to a loss
> > of power.

> No.  It's driver-specific.

If you're working within ASoC the register cache code has support for
syncing back to hardware.