linux-kernel - [PATCH 1/2] drm/amd/dm: Don't forget to attach MST encoders

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Date:   Fri, 16 Nov 2018 18:24:38 -0500
From:   Lyude Paul <lyude@...hat.com>
To:     amd-gfx@...ts.freedesktop.org
Cc:     Jerry Zuo <Jerry.Zuo@....com>,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>, Roman Li <Roman.Li@....com>,
        Shirish S <shirish.s@....com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] drm/amd/dm: Don't forget to attach MST encoders

Drive-by fix, this is bound to cause problems somewhere.

Signed-off-by: Lyude Paul <lyude@...hat.com>
Cc: Jerry Zuo <Jerry.Zuo@....com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 ++
 1 file changed, 2 insertions(+)

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 d02c32a1039c..0cca1809fdcd 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
@@ -342,6 +342,8 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 		master->connector_id);
 
 	aconnector->mst_encoder = dm_dp_create_fake_mst_encoder(master);
+	drm_connector_attach_encoder(&aconnector->base,
+				     &aconnector->mst_encoder->base);
 
 	/*
 	 * TODO: understand why this one is needed
-- 
2.19.1