From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH 0/7] ASoC: omap: Deprecate omap-pcm for
 sdma-pcm
Date: Wed, 25 Apr 2018 09:52:37 -0700
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To: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: alsa-devel@alsa-project.org, aaro.koskinen@iki.fi, Liam Girdwood <lgirdwood@gmail.com>, Peter Ujfalusi <peter.ujfalusi@ti.com>, Mark Brown <broonie@kernel.org>, linux-omap@vger.kernel.org
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* Jarkko Nikula <jarkko.nikula@bitmer.com> [180425 16:33]:
> On 04/25/2018 04:50 PM, Tony Lindgren wrote:
> > * Jarkko Nikula <jarkko.nikula@bitmer.com> [180425 03:56]:
> >> What I noticed some time ago on N810 but not time to fix it that OMAP mux
> >> change dropped muxing audio McBSP pins. Those pins are muxed by reset or
> >> bootloader to another function.
> >>
> >> Probably a few lines to arch/arm/boot/dts/omap2420-n810.dts etc.
> > 
> > Hmm do you have a link or commit id to a patch that does the muxing
> > to see which pins need to be muxed?
> > 
> Could it have been as old as 5a87cde490e1 ("ARM: OMAP2+: Remove legacy
> booting support for n8x0")? At least it is dropping the McBSP muxing
> from board-n8x0.c.

Yup OK makes sense. I probably thought it's safe to do as I recall
the Nokia kernels doing all the muxing in the bootloader. But seems
I was wrong, sorry about that.

Regards,

Tony