From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jean-Francois Moine <moinejf@free.fr>
Subject: Re: Best practice device tree design for display subsystems/DRM
Date: Tue, 2 Jul 2013 20:42:55 +0200
Message-ID: <20130702204255.2044c01b@armhf>
References: <CAMLZHHREVEdRuHaD0imRu4pUv15ZyWYF2J9WCBEw-frxBry-Lw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org>
In-Reply-To: <CAMLZHHREVEdRuHaD0imRu4pUv15ZyWYF2J9WCBEw-frxBry-Lw@mail.gmail.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
To: Daniel Drake <dsd@laptop.org>
Cc: "devicetree-discuss@lists.ozlabs.org" <devicetree-discuss@lists.ozlabs.org>, Russell King <rmk@arm.linux.org.uk>, dri-devel@lists.freedesktop.org, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
List-Id: devicetree@vger.kernel.org
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