arm64: dts: ti: am654: Add DSS node

Add DSS node to k3-am65-main.dtsi with labels for board specific
support and syscon node for oldi-io-ctrl.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>

arch/arm64/boot/dts/ti/k3-am65-main.dtsi

@@ -287,6 +287,11 @@ serdes_mux: mux-controller {
 			mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
 					<0x4090 0x3>; /* SERDES1 lane select */
 		};
+
+		dss_oldi_io_ctrl: dss_oldi_io_ctrl@41E0 {
+			compatible = "syscon";
+			reg = <0x0000041E0 0x14>;
+		};
 	};
 
 	dwc3_0: dwc3@4000000 {
@@ -746,4 +751,43 @@ csi2_0: port@0 {
 			};
 		};
 	};
+
+	dss: dss@04a00000 {
+		compatible = "ti,am65x-dss";
+		reg =	<0x0 0x04a00000 0x0 0x1000>, /* common */
+			<0x0 0x04a02000 0x0 0x1000>, /* vidl1 */
+			<0x0 0x04a06000 0x0 0x1000>, /* vid */
+			<0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
+			<0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
+			<0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
+			<0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
+		reg-names = "common", "vidl1", "vid",
+			"ovr1", "ovr2", "vp1", "vp2";
+
+		ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
+
+		power-domains = <&k3_pds 67 TI_SCI_PD_EXCLUSIVE>;
+
+		clocks =	<&k3_clks 67 1>,
+				<&k3_clks 216 1>,
+				<&k3_clks 67 2>;
+		clock-names = "fck", "vp1", "vp2";
+
+		/*
+		 * Set vp2 clk (DPI_1_IN_CLK) mux to PLL4 via
+		 * DIV1. See "Figure 12-3365. DSS Integration"
+		 * in AM65x TRM for details.
+		 */
+		assigned-clocks = <&k3_clks 67 2>;
+		assigned-clock-parents = <&k3_clks 67 5>;
+
+		interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
+
+		status = "disabled";
+
+		dss_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };