linux-kernel - Re: [PATCH] V4L/DVB: mx1-camera: compile fix

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Date:	Thu, 4 Mar 2010 20:42:41 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	linux-arm-kernel@...ts.infradead.org,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Antonio Ospite <ospite@...denti.unina.it>,
	Hans Verkuil <hverkuil@...all.nl>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] V4L/DVB: mx1-camera: compile fix

On Thu, Mar 04, 2010 at 08:26:23PM +0100, Uwe Kleine-König wrote:
> Hi Guennadi,
> 
> On Thu, Mar 04, 2010 at 06:13:38PM +0100, Guennadi Liakhovetski wrote:
> > > +#undef DMA_BASE 
> > > +#define DMA_BASE MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR)
> > 
> > I don't like this. Why the "undef"? Is DMA_BASE already defined? where and 
> > what is it? If it is - we better use a different name, if not - just 
> > remove the undef, please.
> yes, it's not pretty, but I wanted to make a minimal patch.
> 
> arch/arm/plat-mxc/include/mach/dma-mx1-mx2.h has:
> 
> 	#define DMA_BASE IO_ADDRESS(DMA_BASE_ADDR)

This is only used in the mx1 camera driver, so you can just remove it
from dma-mx1-mx2.h and use MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR) in the camera
driver.

Sascha

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