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

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Date:	Tue, 15 Dec 2015 21:40:29 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Mark Rutland <mark.rutland@....com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@...r.kernel.org>, Arnaud Ebalard <arno@...isbad.org>,
	Russell King <linux@....linux.org.uk>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org, Daniel Mack <zonque@...il.com>,
	Sergei Ianovich <ynvich@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Kumar Gala <galak@...eaurora.org>,
	Thierry Reding <treding@...dia.com>,
	Jonathan Cameron <jic23@...nel.org>
Subject: Re: [PATCH v5 2/2] arm: pxa27x: support for ICP DAS LP-8x4x w/ DT

On Tuesday 15 December 2015 21:01:35 Robert Jarzmik wrote:
> 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 ?

I'm definitely fine with tossing in everything that is PXA specific,
even if it's rarely used.

If someone wants a smaller kernel, they can still start out with the
defconfig and disable stuff they don't need, which tends to be easier
than the opposite, and it gives us compile-time coverage with the
autobuilders that compile every defconfig.

	Arnd
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