From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jim Bride <jim.bride@linux.intel.com>
Subject: [PATCH v5] drm/i915/psr: Account for sink CRC raciness
	on some panels
Date: Wed,  9 Aug 2017 13:40:00 -0700
Message-ID: <1502311200-28033-1-git-send-email-jim.bride@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 mga09.intel.com (mga09.intel.com [134.134.136.24])
 by gabe.freedesktop.org (Postfix) with ESMTPS id D48588926E
 for <intel-gfx@lists.freedesktop.org>; Wed,  9 Aug 2017 20:42:44 +0000 (UTC)
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
Cc: Jani Nikula <jani.nikula@intel.com>, Paulo Zanoni <paulo.r.zanoni@intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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