From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 13/17] drm/i915: Update intel_dp_hpd_pulse()
 to check link status for non-MST operation
Date: Wed, 17 Dec 2014 21:30:12 +0100
Message-ID: <20141217203012.GD2711@phenom.ffwll.local>
References: <1418255597-4716-1-git-send-email-tprevite@gmail.com>
 <1418255597-4716-14-git-send-email-tprevite@gmail.com>
 <CA+gsUGReWtqf+OxCKTQB=bf=0yfUBb5vfCEQuXCnyAsfZ5jG7A@mail.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 mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47])
 by gabe.freedesktop.org (Postfix) with ESMTP id 294B36E0DD
 for <intel-gfx@lists.freedesktop.org>; Wed, 17 Dec 2014 12:29:37 -0800 (PST)
Received: by mail-wg0-f47.google.com with SMTP id n12so21443904wgh.20
 for <intel-gfx@lists.freedesktop.org>; Wed, 17 Dec 2014 12:29:36 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <CA+gsUGReWtqf+OxCKTQB=bf=0yfUBb5vfCEQuXCnyAsfZ5jG7A@mail.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: Paulo Zanoni <przanoni@gmail.com>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org
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