From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Subject: Re: [PATCH] drm/i915/dp: Increase cdclk when DP audio
 is enabled with 4 lanes and HBR2
Date: Thu, 13 Oct 2016 15:28:49 -0300
Message-ID: <1476383329.2478.21.camel@intel.com>
References: <1476381859-4614-1-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: <1476381859-4614-1-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: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>, intel-gfx@freedesktop.org
Cc: Jani Nikula <jani.nikula@intel.com>, Jeeja KP <jeeja.kp@intel.com>, Libin Yang <libin.yang@linux.intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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