diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
index a65e5f1be8..84d121f2b1 100644
--- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb
@@ -110,6 +110,21 @@ chip soc/intel/tigerlake
 		[PchSerialIoIndexUART2] = PchSerialIoDisabled,
 	}"
 
+	# HD Audio
+	register "PchHdaDspEnable" = "1"
+	register "PchHdaAudioLinkHdaEnable" = "0"
+	register "PchHdaAudioLinkDmicEnable[0]" = "1"
+	register "PchHdaAudioLinkDmicEnable[1]" = "1"
+	register "PchHdaAudioLinkSspEnable[0]" = "1"
+	register "PchHdaAudioLinkSspEnable[1]" = "1"
+        # iDisp-Link T-Mode 0: 2T, 2: 4T, 3: 8T, 4: 16T
+	register "PchHdaIDispLinkTmode" = "2"
+        # iDisp-Link Freq 4: 96MHz, 3: 48MHz.
+	register "PchHdaIDispLinkFrequency" = "4"
+        # Not disconnected/enumerable
+	register "PchHdaIDispCodecDisconnect" = "0"
+
+
 	# TCSS USB3
 	register "TcssXhciEn" = "1"