From mboxrd@z Thu Jan  1 00:00:00 1970
From: Philipp Zabel <p.zabel@pengutronix.de>
Subject: Re: [RFC v4 02/11] drm/mediatek: Add DRM Driver for Mediatek SoC
 MT8173.
Date: Wed, 28 Oct 2015 18:14:41 +0100
Message-ID: <1446052481.7190.0.camel@pengutronix.de>
References: <1445026333-17013-1-git-send-email-p.zabel@pengutronix.de>
 <1445026333-17013-3-git-send-email-p.zabel@pengutronix.de>
 <20151019085644.GO13786@phenom.ffwll.local>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
In-Reply-To: <20151019085644.GO13786@phenom.ffwll.local>
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>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Mark Rutland <mark.rutland@arm.com>, devicetree@vger.kernel.org, Paul Bolle <pebolle@tiscali.nl>, YT Shen <yt.shen@mediatek.com>, Jitao Shi <jitao.shi@mediatek.com>, Jie Qiu <jie.qiu@mediatek.com>, Pawel Moll <pawel.moll@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Cawa Cheng <cawa.cheng@mediatek.com>, dri-devel@lists.freedesktop.org, Rob Herring <robh+dt@kernel.org>, linux-mediatek@lists.infradead.org, Kumar Gala <galak@codeaurora.org>, Matthias Brugger <matthias.bgg@gmail.com>, kernel@pengutronix.de
List-Id: devicetree@vger.kernel.org
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