diff --git a/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb b/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb
index 370ebb75d6..b2062cbd07 100644
--- a/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/deltaur/variants/baseboard/devicetree.cb
@@ -125,13 +125,8 @@ chip soc/intel/tigerlake
 	}"
 
 	# HD Audio
-	register "PchHdaDspEnable" = "1"
 	register "PchHdaAudioLinkHdaEnable" = "1"
 	register "PchHdaIDispCodecDisconnect" = "1"
-	register "PchHdaAudioLinkDmicEnable[0]" = "1"
-	register "PchHdaAudioLinkDmicEnable[1]" = "1"
-	register "PchHdaAudioLinkSspEnable[0]" = "1"
-	register "PchHdaAudioLinkSspEnable[1]" = "1"
 
 	# TCSS USB3
 	register "TcssXhciEn" = "1"