linux-kernel - Re: [PATCH 1/2] ARM: dts: imx: specify the value of audmux pinctrl instead of 0x80000000

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Date:	Fri, 15 Nov 2013 14:40:09 +0800
From:	Nicolin Chen <b42378@...escale.com>
To:	Shawn Guo <shawn.guo@...aro.org>
CC:	<timur@...i.org>, <broonie@...nel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<alsa-devel@...a-project.org>, <linux@....linux.org.uk>,
	<ijc+devicetree@...lion.org.uk>, <swarren@...dotorg.org>,
	<mark.rutland@....com>, <pawel.moll@....com>,
	<rob.herring@...xeda.com>, <lgirdwood@...il.com>
Subject: Re: [PATCH 1/2] ARM: dts: imx: specify the value of audmux pinctrl
 instead of 0x80000000

On Fri, Nov 15, 2013 at 02:42:01PM +0800, Shawn Guo wrote:
> On Thu, Nov 14, 2013 at 07:07:09PM +0800, Nicolin Chen wrote:
> > We must specify the value of audmux pinctrl if we want to use pinctrl_pm().
> > Thus change bypass value 0x80000000 to what we exactly need.
> > 
> > This patch also seperately unset PUE bit for TXD so that IOMUX won't pull
> > up/down the pin after turning into tristate. When we use SSI normal mode to
> > playback monaural audio via I2S signal, there'd be a pulled curve occur to
> > its signal at the second slot if setting PUE bit for TXD. And it will make
> > the second channel to play a constant noise. So by keeping the signal level
> > in the second slot, we can get a constant high level signal (-1) or a low
> > level one (0).
> > 
> > Signed-off-by: Nicolin Chen <b42378@...escale.com>
> > ---
> >  arch/arm/boot/dts/imx6qdl.dtsi | 22 +++++++++++-----------
> >  1 file changed, 11 insertions(+), 11 deletions(-)
> 
> We have moved all pin groups settings into
> arch/arm/boot/dts/imx6qdl-pingrp.h.  I just rebased and applied the
> patch.  Please check my imx/dt branch and ensure I applied the changes
> correctly.

Simply perfect. Thank you.
Nicolin

---


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