linux-kernel - Re: [PATCH 3/6] ASoC: ux500: Drop pinctrl sleep support

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Message-ID: <20130508144958.GT7478@sirena.org.uk>
Date:	Wed, 8 May 2013 15:49:58 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Fabio Baltieri <fabio.baltieri@...aro.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Lee Jones <lee.jones@...aro.org>,
	Ola Lilja <ola.o.lilja@...ricsson.com>
Subject: Re: [PATCH 3/6] ASoC: ux500: Drop pinctrl sleep support

On Wed, May 08, 2013 at 04:27:34PM +0200, Fabio Baltieri wrote:
> On Wed, May 08, 2013 at 04:17:23PM +0200, Fabio Baltieri wrote:

> > Ok, what I'm trying to say is that the codec used in this platform
> > should be able to handle sleep modes without requiring any
> > reconfiguration of the digital interface on the SoC side.  In support of
> > this the fact that the STE fork of the driver does not do that, and the
> > same goes for all other ASoC drivers currently in mainline.

> And by the way, if the current code is *really* setting the digital
> audio bus pins in hi-z mode (without any pull-up/down/keeper) as it
> claims, this is not just usless, it's plain wrong.  The bus should never
> be left floating on both sides, right?

Probably not, no.

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