arm64: dts: renesas: r8a7795-es1-salvator-x: enable HDMI sound

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Nguyen Viet Dung <nv-dung@jinso.co.jp>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a7795-es1-salvator-x.dts

@@ -56,6 +56,12 @@ &ehci2 {
 	status = "okay";
 };
 
+&sound_card {
+	dais = <&rsnd_port0	/* ak4613 */
+		&rsnd_port1	/* HDMI0  */
+		&rsnd_port2>;	/* HDMI1  */
+};
+
 &hdmi0 {
 	status = "okay";
 
@@ -66,6 +72,12 @@ rcar_dw_hdmi0_out: endpoint {
 				remote-endpoint = <&hdmi0_con>;
 			};
 		};
+		port@2 {
+			reg = <2>;
+			dw_hdmi0_snd_in: endpoint {
+				remote-endpoint = <&rsnd_endpoint1>;
+			};
+		};
 	};
 };
 
@@ -83,6 +95,12 @@ rcar_dw_hdmi1_out: endpoint {
 				remote-endpoint = <&hdmi1_con>;
 			};
 		};
+		port@2 {
+			reg = <2>;
+			dw_hdmi1_snd_in: endpoint {
+				remote-endpoint = <&rsnd_endpoint2>;
+			};
+		};
 	};
 };
 
@@ -94,6 +112,34 @@ &ohci2 {
 	status = "okay";
 };
 
+&rcar_sound {
+	ports {
+		/* rsnd_port0 is on salvator-common */
+		rsnd_port1: port@1 {
+			rsnd_endpoint1: endpoint {
+				remote-endpoint = <&dw_hdmi0_snd_in>;
+
+				dai-format = "i2s";
+				bitclock-master = <&rsnd_endpoint1>;
+				frame-master = <&rsnd_endpoint1>;
+
+				playback = <&ssi2>;
+			};
+		};
+		rsnd_port2: port@2 {
+			rsnd_endpoint2: endpoint {
+				remote-endpoint = <&dw_hdmi1_snd_in>;
+
+				dai-format = "i2s";
+				bitclock-master = <&rsnd_endpoint2>;
+				frame-master = <&rsnd_endpoint2>;
+
+				playback = <&ssi3>;
+			};
+		};
+	};
+};
+
 &pfc {
 	usb2_pins: usb2 {
 		groups = "usb2";