diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dts b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dts
index 725e39f10556..417746709537 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator-edp.dts
@@ -69,6 +69,18 @@
 	};
 };
 
+&dp_sound {
+	status = "disabled";
+};
+
+&hdmi_dp_sound {
+	status = "disabled";
+};
+
+&hdmi_sound {
+	status = "okay";
+};
+
 &isp0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 5728818893c2..9d8297c5cc41 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -100,6 +100,13 @@
 		#sound-dai-cells = <0>;
 	};
 
+	dp_sound: dp-sound {
+		status = "disabled";
+		compatible = "rockchip,cdndp-sound";
+		rockchip,cpu = <&spdif>;
+		rockchip,codec = <&cdn_dp 1>;
+	};
+
 	hdmi_sound: hdmi-sound {
 		status = "disabled";
 		compatible = "simple-audio-card";