From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Kazlauskas, Nicholas" <Nicholas.Kazlauskas@amd.com>
Subject: Re: [v8 02/10] drm: Parse HDR metadata info from EDID
Date: Tue, 7 May 2019 13:32:57 +0000
Message-ID: <554707fd-af9c-c286-246a-a0a82de08b45@amd.com>
References: <1554828284-17776-1-git-send-email-uma.shankar@intel.com>
 <1554828284-17776-3-git-send-email-uma.shankar@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: <1554828284-17776-3-git-send-email-uma.shankar@intel.com>
Content-Language: en-US
Content-ID: <6B6A7126C03D5043BD20F39DE28EEA63@namprd12.prod.outlook.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: Uma Shankar <uma.shankar@intel.com>, "intel-gfx@lists.freedesktop.org" <intel-gfx@lists.freedesktop.org>, "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>
Cc: "ville.syrjala@intel.com" <ville.syrjala@intel.com>, "jonas@kwiboo.se" <jonas@kwiboo.se>, "seanpaul@chromium.org" <seanpaul@chromium.org>, "dcastagna@chromium.org" <dcastagna@chromium.org>, "maarten.lankhorst@intel.com" <maarten.lankhorst@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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==