arm64: tegra: Enable DP support on Jetson Nano

Add the AVDD_IO_EDP_1V05 and enable the SOR and DPAUX hardware blocks
that are used to drive DisplayPort on Jetson Nano.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts

@@ -64,6 +64,16 @@ dpaux@54040000 {
 			status = "okay";
 		};
 
+		sor@54540000 {
+			status = "okay";
+
+			avdd-io-hdmi-dp-supply = <&avdd_io_edp_1v05>;
+			vdd-hdmi-dp-pll-supply = <&vdd_1v8>;
+
+			nvidia,xbar-cfg = <2 1 0 3 4>;
+			nvidia,dpaux = <&dpaux>;
+		};
+
 		sor@54580000 {
 			status = "okay";
 
@@ -76,6 +86,10 @@ sor@54580000 {
 					   GPIO_ACTIVE_LOW>;
 			nvidia,xbar-cfg = <0 1 2 3 4>;
 		};
+
+		dpaux@545c0000 {
+			status = "okay";
+		};
 	};
 
 	gpu@57000000 {
@@ -680,5 +694,19 @@ vdd_gpu: regulator@6 {
 			enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>;
 			vin-supply = <&vdd_5v0_sys>;
 		};
+
+		avdd_io_edp_1v05: regulator@7 {
+			compatible = "regulator-fixed";
+			reg = <7>;
+
+			regulator-name = "AVDD_IO_EDP_1V05";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+
+			gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+
+			vin-supply = <&avdd_1v05_pll>;
+		};
 	};
 };