From: Arnd Bergmann <arnd@arndb.de>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org,
Stephen Warren <swarren@wwwdotorg.org>,
devicetree-discuss@lists.ozlabs.org,
Rob Clark <robclark@gmail.com>,
linux-rpi-kernel@lists.infradead.org,
Olof Johansson <olof@lixom.net>,
Andrew Morton <akpm@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V2] video: implement a simple framebuffer driver
Date: Tue, 30 Apr 2013 12:34:16 +0200 [thread overview]
Message-ID: <201304301234.16992.arnd@arndb.de> (raw)
In-Reply-To: <517F753F.5090909@ti.com>
On Tuesday 30 April 2013, Tomi Valkeinen wrote:
> > + framebuffer {
> > + compatible = "simple-framebuffer";
> > + reg = <0x1d385000 (1600 * 1200 * 2)>;
> > + width = <1600>;
> > + height = <1200>;
> > + stride = <(1600 * 2)>;
> > + format = "r5g6b5";
> > + };
>
> I'm not an expert on DT, but I think the point of DT is to describe the
> hardware. This doesn't describe the hardware at all.
That's ok.
It's not uncommon to have settings in the device tree that describe how
hardware is set up. Other similar properties would be the line rate
of a serial port, or a keymap describing what each button is labeled.
They are not physical properties, but they are necessary platform specific
pieces of information that are not available otherwise.
Arnd
next prev parent reply other threads:[~2013-04-30 10:34 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-04 2:39 [PATCH V2] video: implement a simple framebuffer driver Stephen Warren
[not found] ` <1365043183-28905-1-git-send-email-swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-09 0:16 ` Andrew Morton
[not found] ` <20130408171637.98b5ad1f867bcbda883af68b-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2013-04-09 3:16 ` Stephen Warren
2013-04-09 8:08 ` Geert Uytterhoeven
2013-04-11 9:56 ` Laurent Pinchart
2013-04-11 16:06 ` Stephen Warren
2013-04-11 20:06 ` Laurent Pinchart
2013-04-11 20:38 ` Stephen Warren
[not found] ` <51671F3D.5040501-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-29 20:56 ` Laurent Pinchart
2013-04-29 21:15 ` Tomasz Figa
2013-04-29 21:20 ` Laurent Pinchart
2013-04-29 21:31 ` Tomasz Figa
2013-04-29 21:40 ` Laurent Pinchart
2013-04-29 22:04 ` Arnd Bergmann
[not found] ` <201304300004.20320.arnd-r2nGTMty4D4@public.gmane.org>
2013-04-29 22:23 ` Laurent Pinchart
2013-04-29 22:40 ` Olof Johansson
[not found] ` <CAOesGMiCvBwck0Z6Nyo9zW=1=J=wjhJW68qNGMrN_8iim=8Srg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-30 9:50 ` Laurent Pinchart
2013-05-02 18:25 ` Stephen Warren
2013-05-02 18:35 ` Geert Uytterhoeven
[not found] ` <5182AF83.4080705-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-05-03 10:06 ` Laurent Pinchart
2013-05-07 21:33 ` Andrew Morton
[not found] ` <20130507143338.79b3d893fcdc3bd79fbe9a57-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2013-05-08 2:36 ` Stephen Warren
[not found] ` <5189BA36.9000105-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-05-08 19:28 ` Olof Johansson
2013-05-08 20:58 ` Rob Landley
2013-04-30 7:28 ` Tomi Valkeinen
2013-04-11 10:42 ` Geert Uytterhoeven
2013-04-11 16:10 ` Stephen Warren
2013-05-18 10:29 ` Alexandre Courbot
[not found] ` <CAAVeFuJ5q4Y0QtvJX2iVmq_O2ofs1B9=MB_aA8VdcEBdM4zf2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-20 15:25 ` Stephen Warren
2013-04-30 7:27 ` Tomi Valkeinen
[not found] ` <517F7245.2050606-X3B1VOXEql0@public.gmane.org>
2013-04-30 10:28 ` Arnd Bergmann
[not found] ` <201304301228.42245.arnd-r2nGTMty4D4@public.gmane.org>
2013-04-30 11:42 ` Laurent Pinchart
2013-04-30 11:48 ` Tomi Valkeinen
[not found] ` <517FAF78.1010306-l0cyMroinI0@public.gmane.org>
2013-04-30 11:49 ` Laurent Pinchart
2013-04-30 11:46 ` Tomi Valkeinen
[not found] ` <517FAF0C.1060901-l0cyMroinI0@public.gmane.org>
2013-05-03 5:40 ` Dave Airlie
2013-04-30 7:39 ` Tomi Valkeinen
2013-04-30 10:34 ` Arnd Bergmann [this message]
2013-04-30 14:38 ` Re[2]: " Alexander Shiyan
2013-04-30 15:07 ` Arnd Bergmann
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