linux-kernel - [PATCH AUTOSEL 4.19 024/167] drm/amd/dm: Understand why attaching path/tile properties are needed

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Message-Id: <20190903162519.7136-24-sashal@kernel.org>
Date:   Tue,  3 Sep 2019 12:22:56 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Lyude Paul <lyude@...hat.com>, Jerry Zuo <Jerry.Zuo@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 4.19 024/167] drm/amd/dm: Understand why attaching path/tile properties are needed

From: Lyude Paul <lyude@...hat.com>

[ Upstream commit 04ac4b0ed412f65230b456fcd9aa07e13befff89 ]

Path property is used for userspace to know what MST connector goes to what actual DRM DisplayPort connector, the tiling property is for tiling configurations. Not sure what else there is to figure out.

Signed-off-by: Lyude Paul <lyude@...hat.com>
Reviewed-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@....com>
Cc: Stable <stable@...r.kernel.org>
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_mst_types.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 59445c83f0238..c85bea70d9652 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -377,9 +377,6 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 	drm_connector_attach_encoder(&aconnector->base,
 				     &aconnector->mst_encoder->base);
 
-	/*
-	 * TODO: understand why this one is needed
-	 */
 	drm_object_attach_property(
 		&connector->base,
 		dev->mode_config.path_property,
-- 
2.20.1