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From 78c3a0056209da78bee2eaf47d8d29081174bb67 Mon Sep 17 00:00:00 2001
From: Mikita Lipski <mikita.lipski@amd.com>
Date: Tue, 17 Jul 2018 10:52:19 -0400
Subject: [PATCH 5056/5725] drm/amd/display: Pass connector id when executing
VBIOS CT
[why]
Older ASICs require both phys_id and connector_id
to execute bios command table. If we are not passing the
right connector_id - it can lead to a black screen.
[how]
Set connector_obj_id when executing vbios command table
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
index 752b3d6..eff7d22 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -930,7 +930,7 @@ void dce110_link_encoder_enable_tmds_output(
enum bp_result result;
/* Enable the PHY */
-
+ cntl.connector_obj_id = enc110->base.connector;
cntl.action = TRANSMITTER_CONTROL_ENABLE;
cntl.engine_id = enc->preferred_engine;
cntl.transmitter = enc110->base.transmitter;
@@ -972,7 +972,7 @@ void dce110_link_encoder_enable_dp_output(
* We need to set number of lanes manually.
*/
configure_encoder(enc110, link_settings);
-
+ cntl.connector_obj_id = enc110->base.connector;
cntl.action = TRANSMITTER_CONTROL_ENABLE;
cntl.engine_id = enc->preferred_engine;
cntl.transmitter = enc110->base.transmitter;
--
2.7.4
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