[PATCH v1 2/2] arm64: tegra: Add PCIe wake GPIO for Jetson Orin NX/Nano

[Manikanta Maddireddy <mmaddireddy@nvidia.com>]

The C8 PCIe controller on the P3768 carrier has WAKE# wired to main
GPIO L.2.

Describe the signal on the root port so PCIe devices can use it as a
wake source, enabling wake-on-LAN support.

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
---
 .../boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi
index 41821354bbda..2af32613b16c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi
@@ -163,6 +163,16 @@ pcie@140a0000 {
 
 			vddio-pex-ctl-supply = <&vdd_1v8_ao>;
 			vpcie3v3-supply = <&vdd_3v3_pcie>;
+
+			pci@0,0 {
+				reg = <0x0000 0 0 0 0>;
+				device_type = "pci";
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges;
+
+				wake-gpios = <&gpio TEGRA234_MAIN_GPIO(L, 2) GPIO_ACTIVE_LOW>;
+			};
 		};
 
 		/* C1 - M.2 Key-E */
-- 
2.34.1