linux-kernel - Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT

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Message-ID: <8760zziiqo.fsf@belgarion.home>
Date:	Tue, 15 Dec 2015 21:01:35 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Sergei Ianovich <ynvich@...il.com>, linux-kernel@...r.kernel.org,
	Daniel Mack <zonque@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Thierry Reding <treding@...dia.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Arnaud Ebalard <arno@...isbad.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	"open list\:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@...r.kernel.org>,
	"moderated list\:ARM PORT" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT

Arnd Bergmann <arnd@...db.de> writes:

> On Tuesday 15 December 2015 21:50:13 Sergei Ianovich wrote:
>> On Tue, 2015-12-15 at 19:06 +0100, Robert Jarzmik wrote:
>> Updated plan:
>> 1. MACH_PXA27X_DT
>> 2. PXA_FB and 8250_PXA to enable console
What about gpio-pxa ? And maybe pinctrl-pxa27x (only in linux-next by now) ? Can
a pxafb work without gpio-pxa ? Also usually for pxafb you have pwm and pwm_bl
to see something.

>> 3. MMC, MMC_PXA and EXT4_FS to enable boot from MMC
>> 3.1. MTD, MTD_CFI, MTD_PHYSMAP_OF and JFFS2_FS to enable boot from MTD
Ok. Is pxa2xx-pcmcia out of scope ? I seem to remember we have several boards
where pcmcia is the rootfs (even if that is a small mess right now I still have
to work on). Or do we consider pcmcia as obsolete ?

>> 4. all optional pxa stuff as modules
>> 5. all stuff on supported pxa boards as modules
>> 6. supported boards should boot the kernel built with
>> `pxa27x-dt_defconfig` after `make olddefconfig`
>> 
>> It is probably a good idea to put this plan somewhere in Documentation/
>> and to have a comment about that in the defconfig itself.
>> 
>> Is the plan acceptable?
>
> Sounds good to me.
Sounds good to me too.

Cheers.

-- 
Robert
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