linux-kernel - Re: [PATCH 2/5] ASoC: Call snd_soc_new_widgets() after registering cards DAPM widgets

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Date:	Wed, 13 Apr 2011 10:32:49 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] ASoC: Call snd_soc_new_widgets() after registering
 cards DAPM widgets

On Wed, Apr 13, 2011 at 02:32:35PM +0200, Lars-Peter Clausen wrote:

> But snd_soc_dapm_new_widgets also calls dapm_power_widgets which operates on
> the passed dapm_context, will it be without any effect on the DAPM context,
> when it is called on a newly allocated context?

Yup.

> Otherwise I would say call snd_soc_dapm_new_widgets once for the cards
> dapm_context and snd_soc_dapm_sync for each codec context.

There's no point in repeatedly syncing - it may cause audible issues if
we power things off due to incomplete information.  If the sync isn't
propagating over the entire system we should fix that.
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