From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Change order of operations
	for	VLV/CHV to not train DP link before PHYs are ready
Date: Fri, 10 Oct 2014 11:04:57 +0300
Message-ID: <87lhoos63a.fsf@intel.com>
References: <1412872632-49802-1-git-send-email-tprevite@gmail.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 mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id 5E39D898BE
 for <intel-gfx@lists.freedesktop.org>; Fri, 10 Oct 2014 01:05:46 -0700 (PDT)
In-Reply-To: <1412872632-49802-1-git-send-email-tprevite@gmail.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://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: <http://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: Todd Previte <tprevite@gmail.com>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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