linux-kernel - Re: [PATCH 07/10] ASoC: OMAP: ams-delta: Drive modem/codec pins over GPIO API

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Message-ID: <CABS+qY1Ng0JQMan++sG+T0jcCFOdDH61hzQ=AXyAD-BPDTpDFg@mail.gmail.com>
Date:	Thu, 22 Dec 2011 09:25:26 +0000
From:	"Girdwood, Liam" <lrg@...com>
To:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
Cc:	Tony Lindgren <tony@...mide.com>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH 07/10] ASoC: OMAP: ams-delta: Drive modem/codec pins over
 GPIO API

On 21 December 2011 22:14, Janusz Krzysztofik <jkrzyszt@....icnet.pl> wrote:
> On Wednesday 21 of December 2011 at 19:33:44, Liam Girdwood wrote:
>> On Sun, 2011-12-11 at 21:12 +0100, Janusz Krzysztofik wrote:
>> > Don't use Amstrad Delta custom I/O functions any longer, replace them
>> > with GPIO. Old pin definitions, no longer used by the modem bits either,
>> > can be dropped.
>> >
>> > Depends on patch 2/10 "ARM: OMAP1: Convert Amstrad E3 latches to
>> > basic_mmio_gpio".
>> >
>> > Signed-off-by: Janusz Krzysztofik <jkrzyszt@....icnet.pl>
>>
>> Applied.
>
> Hi,
> I'm sorry, but I've probably missed to infrom you explicitly, i.e. other
> than in a cover letter to v2 of this series, that this particular patch
> has been dropped from the series. I've already started working on an
> alternative solution, which I intend to submit as a separate set. It
> will be free of potentail problems with two devices, a modem and the
> sound card, accessing the same GPIO pins concurrently. For the
> MODEM_NRESET pin I've already set up a virtual regulator on top of it,
> and for the MODEM_CODEC pin I'll probably choose a virtual clock (pinmux
> would match the hardware more closely here, but it looks too complicated
> to me). Moreover, I've already started to move all those GPIO pin
> related functions, i.e. bias control, digital mute and line discipline
> interaction, from the board file to the codec driver, where all those
> seem to belong.
>
> Having this patch applied will conflict with the regultor and the clock
> solutions, taking control over those two GPIO pins. Please revert this
> patch, or reset it if still possible.
>
> Thanks,
> Janusz

Will do, I never pushed last night as it was late. So I'll only will
have to make a local change.

Thanks

Liam
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