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

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Message-ID: <20140508230415.GA6670@drone.musicnaut.iki.fi>
Date:	Fri, 9 May 2014 02:04:15 +0300
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Tomi Valkeinen <tomi.valkeinen@...com>,
	Peter Griffin <peter.griffin@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, 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,
	Janusz Krzysztofik <jmkrzyszt@...il.com>
Subject: Re: [PATCH 13/13] video: omap: allow building on !MMU

Hi,

On Thu, May 08, 2014 at 02:53:38PM -0700, Tony Lindgren wrote:
> * Tomi Valkeinen <tomi.valkeinen@...com> [140507 02:15]:
> > 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...

OMAP1 fb is working very well. As a matter of fact, it's much more usable
for me than fb on OMAP2/3 - apart from N900 (on which fb is working again
with 3.15) none of my 4 other OMAP2/3 boards have a working display/fb
in mainline yet. :-(

> > Tony, any idea of omap1's fb? Are you able to test this?
> 
> I have three omap1 boards in my rack that I use for my boot
> testing. Tried to enable framebuffer but so far no luck on
> any of them. So I'm not much of a help here. Looks like the
> patch should work though..
> 
> Aaro & Janusz, care to take a look at the patch in this
> thread?

I couldn't figure out how to enter this code path. Amstrad E3 & Nokia
770 will take the alloc_fbmem() path & exit, and based on quick look
I could not see way to enter mmap_kern(). Is that dead code?

A.
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