linux-kernel - Re: [PATCH v3] mfd: ADP5520 Multifunction LCD Backlight and KeypadInput Device Driver

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Date:	Wed, 7 Oct 2009 14:19:31 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	"Hennerich, Michael" <Michael.Hennerich@...log.com>
Cc:	Mike Frysinger <vapier@...too.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	uclinux-dist-devel@...ckfin.uclinux.org,
	linux-kernel@...r.kernel.org, Bryan Wu <cooloney@...nel.org>
Subject: Re: [PATCH v3] mfd: ADP5520 Multifunction LCD Backlight and
 KeypadInput Device Driver

On Wed, Oct 07, 2009 at 02:01:42PM +0100, Hennerich, Michael wrote:

> Most architectures define NR_IRQS to exactly the number of on-chip IRQs.
> Therefore irq_desc pointers > NR_IRQS will fail on most architectures.
> This driver should be usable out of the box - but I guess this may
> prevent this.

Indeed, that's rather unfortunate.  This wouldn't be the only driver
with that dependency, though, so I'd expect to see the interesting
architectures getting fixed.
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