linux-kernel - Re: [PATCH 1/2] gpio/omap: maintain GPIO and IRQ usage separately

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Date:	Tue, 01 Oct 2013 09:34:24 +0200
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Kevin Hilman <khilman@...aro.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Stephen Warren <swarren@...dotorg.org>,
	Lars Poeschel <larsi@....tu-dresden.de>,
	Grant Likely <grant.likely@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ian.campbell@...rix.com>,
	Kumar Gala <galak@...eaurora.org>,
	Pawel Moll <pawel.moll@....com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Enric Balletbo i Serra <eballetbo@...il.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Balaji T K <balajitk@...com>,
	Tony Lindgren <tony@...mide.com>,
	Jon Hunter <jgchunter@...il.com>, linux-gpio@...r.kernel.org,
	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, r.sricharan@...com,
	holler@...oftware.de
Subject: Re: [PATCH 1/2] gpio/omap: maintain GPIO and IRQ usage separately

On 09/27/2013 08:08 PM, Kevin Hilman wrote:
> Javier Martinez Canillas <javier.martinez@...labora.co.uk> writes:
> 
>> The GPIO OMAP controller pins can be used as IRQ and GPIO
>> independently so is necessary to keep track GPIO pins and
>> IRQ lines usage separately to make sure that the bank will
>> always be enabled while being used.
>>
>> Also move gpio_is_input() definition in preparation for the
>> next patch that setups the controller's irq_chip driver when
>> a caller requests an interrupt line.
>>
>> Signed-off-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
> 
> I'm fine with this appproach.  For both patches:
> 
> Reviewed-by: Kevin Hilman <khilman@...aro.org>
> 
> Also, I gave it a spin across a handful of OMAP boards using v3.12-rc2 +
> these 2 patches.
> 
> Boot tested successfully with DT boot:
> 
> omap3530/beagle
> omap3730/beagle-xm
> omap3530/overo (Tobi w/GPIO IRQ networking)
> omap3730/overo STORM (w/GPIO IRQ for networking)
> am335x/beaglebone
> am335x/beaglebone black
> omap4430/panda
> omap4460/panda-es
> omap5912/OSK (omap1)
> 
> I also verified non-DT boot on the OMAP3 platforms that still support
> legacy boot.
> 
> So feel free to also add
> 
> Tested-by: Kevin Hilman <khilman@...aro.org>
> 
> Thanks for your persistence in getting a fix for this upstream.
> 
> Kevin
> 

Thanks a lot Kevin for testing on so many boards.

Linus,

Since this patch-set doesn't cause any regression and fix a long standing issue
on OMAP, do you think that it would be possible to include on the -rc series as
a bugfix or do you prefer to wait until 3.13?

Thanks a lot and best regards,
Javier
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