From: "Jerry (Fangzhi) Zuo" <Jerry.Zuo-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH 1/2] drm/amd/display: Cleanup MST non-atomic code workaround
Date: Tue, 30 Oct 2018 18:09:39 -0400
Message-ID: <20181030220940.25052-1-Jerry.Zuo@amd.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Id: Discussion list for AMD gfx <amd-gfx.lists.freedesktop.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/amd-gfx>
List-Post: <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Help: <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=subscribe>
Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Sender: "amd-gfx" <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, harry.wentland-5C7GfCeVMHo@public.gmane.org, lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Cc: "Jerry (Fangzhi) Zuo" <Jerry.Zuo-5C7GfCeVMHo@public.gmane.org>
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