arm64: tegra: smaug: Enable DisplayPort via USB-C port

Enable both SOR and DPAUX modules allowing the USB-C port to transmit
video in DP altmode. Tested on several monitors with USB-C to HDMI
adapter.

Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: diogoivo

arch/arm64/boot/dts/nvidia/tegra210-smaug.dts

@@ -31,6 +31,11 @@
 	};
 
 	host1x@50000000 {
+		dpaux1: dpaux@54040000 {
+			vdd-supply = <&pp3300>;
+			status = "okay";
+		};
+
 		dsia: dsi@54300000 {
 			avdd-dsi-csi-supply = <&vdd_dsi_csi>;
 			status = "okay";
@@ -58,6 +63,13 @@
 			};
 		};
 
+		sor1: sor@54580000 {
+			avdd-io-hdmi-dp-supply = <&pp1800>;
+			vdd-hdmi-dp-pll-supply = <&avddio_1v05>;
+			nvidia,dpaux = <&dpaux1>;
+			status = "okay";
+		};
+
 		dpaux: dpaux@545c0000 {
 			status = "okay";
 		};