From: Zeyu Fan <Zeyu.Fan@amd.com>
Date: Wed, 7 Dec 2016 11:28:03 -0500
Subject: drm/amd/display: Fix hdmi not lighting up on Hawaii.
Git-commit: 56bc1c42610aa6328e6c4b222dc076acffb40243
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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_out
 	/* 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) {