From mboxrd@z Thu Jan  1 00:00:00 1970
From: Manasi Navare <manasi.d.navare@intel.com>
Subject: Re: [PATCH 2/2] drm/i915/icl: Enable TRANSCODER PORT
 SYNC for tiled displays across separate ports
Date: Fri, 22 Mar 2019 11:44:21 -0700
Message-ID: <20190322184421.GA28038@intel.com>
References: <20190322015939.23189-1-manasi.d.navare@intel.com>
 <20190322015939.23189-2-manasi.d.navare@intel.com>
 <87va0bb6ce.fsf@intel.com> <20190322131603.GR3888@intel.com>
 <20190322175801.GB27582@intel.com>
 <20190322180949.GI3888@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 mga06.intel.com (mga06.intel.com [134.134.136.31])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 795596E27D
 for <intel-gfx@lists.freedesktop.org>; Fri, 22 Mar 2019 18:42:14 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20190322180949.GI3888@intel.com>
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: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>, Daniel Vetter <daniel.vetter@intel.com>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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