drm/amd/display: Fix hdmi not lighting up on Hawaii.

Signed-off-by: Zeyu Fan <Zeyu.Fan@amd.com>
Acked-by: Jordan Lazare <Jordan.Lazare@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 86e55d0..10b70ca 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -1233,7 +1233,7 @@ void dce110_link_encoder_enable_tmds_output(
        /* Enable the PHY */
 
        cntl.action = TRANSMITTER_CONTROL_ENABLE;
-       cntl.engine_id = ENGINE_ID_UNKNOWN;
+       cntl.engine_id = enc->preferred_engine;
        cntl.transmitter = enc110->base.transmitter;
        cntl.pll_id = clock_source;
        if (hdmi) {