From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH 2/2] drm/i915/mst: Use MST sideband message
 transaction for dpms
Date: Tue, 12 Sep 2017 19:17:37 +0300
Message-ID: <20170912161737.GZ4914@intel.com>
References: <20170906012634.3975-1-dhinakaran.pandiyan@intel.com>
 <20170906012634.3975-2-dhinakaran.pandiyan@intel.com>
 <20170912161132.GY4914@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>
Content-Disposition: inline
In-Reply-To: <20170912161132.GY4914@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: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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