From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 2/2] drm/i915: Skip CHV PHY asserts until
 PHY has been fully reset
Date: Tue, 6 Oct 2015 10:30:01 +0200
Message-ID: <20151006083001.GS3383@phenom.ffwll.local>
References: <1441724745-10515-1-git-send-email-ville.syrjala@linux.intel.com>
 <1441724745-10515-2-git-send-email-ville.syrjala@linux.intel.com>
 <561250A1.5060709@linux.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 mail-wi0-f181.google.com (mail-wi0-f181.google.com
 [209.85.212.181])
 by gabe.freedesktop.org (Postfix) with ESMTPS id A25CF6EA64
 for <intel-gfx@lists.freedesktop.org>; Tue,  6 Oct 2015 01:27:08 -0700 (PDT)
Received: by wiclk2 with SMTP id lk2so147951442wic.1
 for <intel-gfx@lists.freedesktop.org>; Tue, 06 Oct 2015 01:27:07 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <561250A1.5060709@linux.intel.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: Deepak <deepak.s@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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