arm64: apple: t8112: Add SIO, DPA nodes; hook up to DCP

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

arch/arm64/boot/dts/apple/t8112-j473.dts

@@ -21,6 +21,7 @@
 		/delete-property/ dcp;
 		dcpext = &dcpext;
 		ethernet0 = &ethernet0;
+		sio = &sio;
 		wifi0 = &wifi0;
 	};
 };
@@ -64,6 +65,10 @@
 	apple,dptx-phy = <5>;
 };
 
+&dpaudio1 {
+	status = "okay";
+};
+
 /*
  * Provide labels for the USB type C ports.
  */

arch/arm64/boot/dts/apple/t8112.dtsi

@@ -739,6 +739,17 @@
 				iommus = <&disp0_dart 4>;
 				phandle = <&disp0_piodma>;
 			};
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					dcp_audio: endpoint {
+						remote-endpoint = <&dpaudio0_dcp>;
+					};
+				};
+			};
 		};
 
 		display: display-subsystem {
@@ -893,6 +904,32 @@
 			status = "disabled";
 		};
 
+		sio_mbox: mbox@236408000 {
+			compatible = "apple,t8112-asc-mailbox", "apple,asc-mailbox-v4";
+			reg = <0x2 0x36408000 0x0 0x4000>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 774 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 775 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 776 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 777 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "send-empty", "send-not-empty",
+				"recv-empty", "recv-not-empty";
+			#mbox-cells = <0>;
+			power-domains = <&ps_sio_cpu>;
+		};
+
+		sio: sio@236400000 {
+			compatible = "apple,t8112-sio", "apple,sio";
+			reg = <0x2 0x36400000 0x0 0x8000>;
+			dma-channels = <128>;
+			#dma-cells = <1>;
+			mboxes = <&sio_mbox>;
+			iommus = <&sio_dart 0>;
+			power-domains = <&ps_sio_cpu>;
+			resets = <&ps_sio>; /* TODO: verify reset does something */
+			status = "disabled";
+		};
+
 		admac: dma-controller@238200000 {
 			compatible = "apple,t8112-admac", "apple,admac";
 			reg = <0x2 0x38200000 0x0 0x34000>;
@@ -907,6 +944,48 @@
 			resets = <&ps_audio_p>;
 		};
 
+		dpaudio0: audio-controller@238330000 {
+			compatible = "apple,t8112-dpaudio", "apple,dpaudio";
+			reg = <0x2 0x38330000 0x0 0x4000>;
+			dmas = <&sio 0x64>;
+			dma-names = "tx";
+			power-domains = <&ps_dpa0>;
+			reset-domains = <&ps_dpa0>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					dpaudio0_dcp: endpoint {
+						remote-endpoint = <&dcp_audio>;
+					};
+				};
+			};
+		};
+
+		dpaudio1: audio-controller@238334000 {
+			compatible = "apple,t8112-dpaudio", "apple,dpaudio";
+			reg = <0x2 0x38334000 0x0 0x4000>;
+			dmas = <&sio 0x66>;
+			dma-names = "tx";
+			power-domains = <&ps_dpa1>;
+			reset-domains = <&ps_dpa1>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					dpaudio1_dcp: endpoint {
+						remote-endpoint = <&dcpext_audio>;
+					};
+				};
+			};
+		};
+
 		mca: i2s@238400000 {
 			compatible = "apple,t8112-mca", "apple,mca";
 			reg = <0x2 0x38400000 0x0 0x18000>,
@@ -1474,6 +1553,17 @@
 			piodma {
 				iommus = <&dispext0_dart 4>;
 			};
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					dcpext_audio: endpoint {
+						remote-endpoint = <&dpaudio1_dcp>;
+					};
+				};
+			};
 		};
 
 		ans_mbox: mbox@277408000 {