diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index e0092fb27ec0..a2524fc138a2 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -1011,9 +1011,13 @@
 				#size-cells = <0>;
 
 				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
 					reg = <1>;
 
-					vin4csi40: endpoint {
+					vin4csi40: endpoint@2 {
+						reg = <2>;
 						remote-endpoint= <&csi40vin4>;
 					};
 				};
@@ -1035,9 +1039,13 @@
 				#size-cells = <0>;
 
 				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
 					reg = <1>;
 
-					vin5csi40: endpoint {
+					vin5csi40: endpoint@2 {
+						reg = <2>;
 						remote-endpoint= <&csi40vin5>;
 					};
 				};