From mboxrd@z Thu Jan  1 00:00:00 1970
From: Imre Deak <imre.deak@intel.com>
Subject: [PATCH v3 3/6] drm/i915/lvds: Restore initial HW state
	during encoder enabling
Date: Tue,  9 Aug 2016 21:59:16 +0300
Message-ID: <1470769157-13170-1-git-send-email-imre.deak@intel.com>
References: <1470763294-7183-2-git-send-email-imre.deak@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga03.intel.com (mga03.intel.com [134.134.136.65])
 by gabe.freedesktop.org (Postfix) with ESMTP id DCEDE6E643
 for <intel-gfx@lists.freedesktop.org>; Tue,  9 Aug 2016 18:59:20 +0000 (UTC)
In-Reply-To: <1470763294-7183-2-git-send-email-imre.deak@intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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