arm64: tegra: Add PCIe and DP 3.3V supplies

Add the 3.3V supplies for PCIe C1 controller and Display Port controller
for the NVIDIA IGX Orin platform.
Signed-off-by: Shubhi Garg <shgarg@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra234-p3740-0002+p3701-0008.dts

@@ -88,6 +88,7 @@ pcie@140e0000 {
 		pcie@14100000 {
 			status = "okay";
 			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
+			vpcie3v3-supply = <&vdd_3v3_wifi>;
 			phys = <&p2u_hsio_3>;
 			phy-names = "p2u-0";
 		};

arch/arm64/boot/dts/nvidia/tegra234-p3740-0002.dtsi

@@ -184,4 +184,32 @@ usb@3610000 {
 				"usb3-0", "usb3-1", "usb3-2";
 		};
 	};
+
+	vdd_3v3_dp: regulator-vdd-3v3-dp {
+				compatible = "regulator-fixed";
+				regulator-name = "VDD_3V3_DP";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				vin-supply = <&vdd_3v3_sys>;
+				gpio = <&gpio TEGRA234_MAIN_GPIO(H, 6) 0>;
+				enable-active-high;
+				regulator-always-on;
+	};
+
+	vdd_3v3_sys: regulator-vdd-3v3-sys {
+				compatible = "regulator-fixed";
+				regulator-name = "VDD_3V3_SYS";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+	};
+
+	vdd_3v3_wifi: regulator-vdd-3v3-wifi {
+				compatible = "regulator-fixed";
+				regulator-name = "VDD_3V3_WIFI";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				gpio = <&gpio TEGRA234_MAIN_GPIO(G, 3) GPIO_ACTIVE_HIGH>;
+				regulator-boot-on;
+				enable-active-high;
+	};
 };