A single graph port node without an address (i.e. "reg") should not have
a unit-address, drop it from the "linux,spdif-dit" port node.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
Arnd, Please apply directly.

 arch/arm/boot/dts/socionext/uniphier-pxs2-vodka.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/socionext/uniphier-pxs2-vodka.dts b/arch/arm/boot/dts/socionext/uniphier-pxs2-vodka.dts
index 7e08a459f7d8..ab910e1b5e6a 100644
--- a/arch/arm/boot/dts/socionext/uniphier-pxs2-vodka.dts
+++ b/arch/arm/boot/dts/socionext/uniphier-pxs2-vodka.dts
@@ -43,7 +43,7 @@ spdif-out {
 		compatible = "linux,spdif-dit";
 		#sound-dai-cells = <0>;
 
-		port@0 {
+		port {
 			spdif_tx: endpoint {
 				remote-endpoint = <&spdif_hiecout1>;
 			};
@@ -54,7 +54,7 @@ comp-spdif-out {
 		compatible = "linux,spdif-dit";
 		#sound-dai-cells = <0>;
 
-		port@0 {
+		port {
 			comp_spdif_tx: endpoint {
 				remote-endpoint = <&comp_spdif_hiecout1>;
 			};
-- 
2.51.0