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Subject[PATCH 4.18 172/197] drm/amd/display: Pass connector id when executing VBIOS CT
Date
4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mikita Lipski <mikita.lipski@amd.com>

commit 433149130c31de3f63b17b4ce08b45dab208f7e8 upstream.

[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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -919,7 +919,7 @@ void dce110_link_encoder_enable_tmds_out
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;
@@ -961,7 +961,7 @@ void dce110_link_encoder_enable_dp_outpu
* 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;

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