linux-kernel - Re: [PATCH 13/13] video: omap: allow building on !MMU

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Message-ID: <5369F973.10803@ti.com>
Date:	Wed, 7 May 2014 12:14:27 +0300
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Peter Griffin <peter.griffin@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, Tony Lindgren <tony@...mide.com>
CC:	<linux-kernel@...r.kernel.org>, <linaro-kernel@...ts.linaro.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<linux-fbdev@...r.kernel.org>, <linux-omap@...r.kernel.org>
Subject: Re: [PATCH 13/13] video: omap: allow building on !MMU

On 24/04/14 15:28, Peter Griffin wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The omap lcdc driver has an elaborate mmap_kern function
> to map the frame buffer into kernel address space as
> write-combined. This uses functions that are only available
> on MMU-enabled builds.
> 
> It does seem equivalent to ioremap_wc though, so we should
> be able to just use that instead.
> 
> This patch is build-tested only, it needs to be run on real
> hardware before applying.

I don't have omap1 boards, and I don't know anyone that has. I don't
even know if the omap1 fb is working or not...

Tony, any idea of omap1's fb? Are you able to test this?

 Tomi



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