linux-kernel - [PATCH AUTOSEL 6.1 24/24] drm/amd/display: disable S/G display on DCN 3.1.2/3

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Date:   Wed, 15 Feb 2023 15:45:47 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Alex Deucher <alexander.deucher@....com>, roman.li@....com,
        yifan1.zhang@....com, Sasha Levin <sashal@...nel.org>,
        harry.wentland@....com, sunpeng.li@....com,
        Rodrigo.Siqueira@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch,
        aurabindo.pillai@....com, stylon.wang@....com, Jerry.Zuo@....com,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.1 24/24] drm/amd/display: disable S/G display on DCN 3.1.2/3

From: Alex Deucher <alexander.deucher@....com>

[ Upstream commit 077e9659581acab70f2dcc04b5bc799aca3a056b ]

Causes flickering or white screens in some configurations.
Disable it for now until we can fix the issue.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2352
Cc: roman.li@....com
Cc: yifan1.zhang@....com
Reviewed-by: Yifan Zhang <yifan1.zhang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 988b1c947aefc..c026ba532b733 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1524,8 +1524,6 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 			break;
 		case IP_VERSION(2, 1, 0):
 		case IP_VERSION(3, 0, 1):
-		case IP_VERSION(3, 1, 2):
-		case IP_VERSION(3, 1, 3):
 		case IP_VERSION(3, 1, 6):
 			init_data.flags.gpu_vm_support = true;
 			break;
-- 
2.39.0