From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tarun Vyas <tarun.vyas@intel.com>
Subject: Re: [PATCH v2] drm/i915: Wait for PSR exit before
 checking for vblank evasion
Date: Thu, 21 Jun 2018 15:43:50 -0700
Message-ID: <20180621224350.GA170083@otc-chromeosbuild-5>
References: <20180514204922.82073-1-tarun.vyas@intel.com>
 <20180514204922.82073-3-tarun.vyas@intel.com>
 <1529443637.12516.15.camel@intel.com>
 <1529445247.12516.18.camel@intel.com>
 <20180619215954.GA141946@otc-chromeosbuild-5>
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 mga17.intel.com (mga17.intel.com [192.55.52.151])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 22BE389D4A
 for <intel-gfx@lists.freedesktop.org>; Thu, 21 Jun 2018 22:43:57 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20180619215954.GA141946@otc-chromeosbuild-5>
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: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: jani.nikula@intel.com, intel-gfx@lists.freedesktop.org, rodrigo.vivi@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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=