diff --git a/src/mainboard/siemens/mc_ehl/variants/mc_ehl1/devicetree.cb b/src/mainboard/siemens/mc_ehl/variants/mc_ehl1/devicetree.cb
index 7c1d48aa14..1c48c99c8a 100644
--- a/src/mainboard/siemens/mc_ehl/variants/mc_ehl1/devicetree.cb
+++ b/src/mainboard/siemens/mc_ehl/variants/mc_ehl1/devicetree.cb
@@ -20,13 +20,6 @@ chip soc/intel/elkhartlake
 	register "SmbusEnable" = "1"
 	register "Heci2Enable" = "1"
 
-	# Display related UPDs
-	# Enable HPD for DDI ports C
-	register "DdiPortCHpd" = "1"
-
-	# Enable DDC for DDI ports C
-	register "DdiPortCDdc" = "1"
-
 	# USB related UPDs
 	register "usb2_ports[0]" = "USB2_PORT_MID(OC3)"	# USB3/2 Type A port1
 	register "usb2_ports[1]" = "USB2_PORT_MID(OC3)"	# USB2 WWAN