From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Subject: [PATCH v5 5/5] drm/dp: Track MST link bandwidth
Date: Thu, 30 Mar 2017 01:42:10 -0700
Message-ID: <1490863330-5359-6-git-send-email-dhinakaran.pandiyan@intel.com>
References: <1490863330-5359-1-git-send-email-dhinakaran.pandiyan@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>
In-Reply-To: <1490863330-5359-1-git-send-email-dhinakaran.pandiyan@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: intel-gfx@lists.freedesktop.org
Cc: Archit Taneja <architt@codeaurora.org>, Daniel Vetter <daniel.vetter@ffwll.ch>, dri-devel@lists.freedesktop.org, "Pandiyan, Dhinakaran" <dhinakaran.pandiyan@intel.com>, Harry Wentland <Harry.wentland@amd.com>
List-Id: dri-devel@lists.freedesktop.org
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