diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nvr-demo.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-nvr-demo.dtsi
index 27afeee3ecfe..ed2cd4ad181c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-nvr-demo.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nvr-demo.dtsi
@@ -216,6 +216,10 @@
 	status = "okay";
 };
 
+&hdmi0_sound {
+	status = "okay";
+};
+
 &hdptxphy_hdmi0 {
 	status = "okay";
 };
@@ -278,6 +282,10 @@
 		     &i2s0_sdo0>;
 };
 
+&i2s5_8ch {
+	status = "okay";
+};
+
 &mdio0 {
 	rgmii_phy0: phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nvr.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-nvr.dtsi
index 9f74c4898829..59a18ef96a39 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-nvr.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nvr.dtsi
@@ -27,6 +27,36 @@
 		};
 	};
 
+	hdmi0_sound: hdmi0-sound {
+		status = "disabled";
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,mclk-fs = <128>;
+		simple-audio-card,name = "rockchip,hdmi0";
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s5_8ch>;
+		};
+		simple-audio-card,codec {
+			sound-dai = <&hdmi0>;
+		};
+	};
+
+	hdmi1_sound: hdmi1-sound {
+		status = "disabled";
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,mclk-fs = <128>;
+		simple-audio-card,name = "rockchip,hdmi1";
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s6_8ch>;
+		};
+		simple-audio-card,codec {
+			sound-dai = <&hdmi1>;
+		};
+	};
+
 	test-power {
 		status = "okay";
 	};