linux-kernel - Re: [PATCH 1/7] mfd: max8925: Move _IO resources out of ioport

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Message-Id: <201208071946.52211.arnd@arndb.de>
Date:	Tue, 7 Aug 2012 19:46:52 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Samuel Ortiz <sameo@...ux.intel.com>, linux-kernel@...r.kernel.org,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Russell King <rmk@....linux.org.uk>,
	"v3.4+" <stable@...r.kernel.org>
Subject: Re: [PATCH 1/7] mfd: max8925: Move _IO resources out of ioport_ioresource

On Tuesday 07 August 2012, Mark Brown wrote:
> The removal of mach/io.h from most ARM platforms also set the range of
> valid IO ports to be empty for most platforms when previously any 32
> bit integer had been valid. This makes it impossible to add IO resources
> as the added range is smaller than that of the root resource for IO ports.
> 
> Since we're not really using IO memory at all fix this by defining our
> own root resource outside the normal tree and make that the parent of
> all IO resources. This also ensures we won't conflict with read IO ports
> if we ever run on a platform which happens to use them.
> 
> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> Cc: stable@...r.kernel.org (v3.4+)

(whole series)

Acked-by: Arnd Bergmann <arnd@...db.de>

Thanks a lot for following through with this series! I would have
preferred to have the second step in stable as Russell suggested,
but since you did all the work, I'm not going to complain about it ;-)

	Arnd
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