arm64: tegra: Add regulators required for PCIe

Add regulator supplies required for PCIe functionality. The supplies
include 1.8V, 3.3V and 12V.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
index 798de92..9e4d72c 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701-0000.dtsi
@@ -6,6 +6,42 @@
        model = "NVIDIA Jetson AGX Orin";
        compatible = "nvidia,p3701-0000", "nvidia,tegra234";
 
+       vdd_1v8_ls: regulator-vdd-1v8-ls {
+               compatible = "regulator-fixed";
+               regulator-name = "VDD_1V8_LS";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       vdd_1v8_ao: regulator-vdd-1v8-ao {
+               compatible = "regulator-fixed";
+               regulator-name = "VDD_1V8_AO";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       vdd_3v3_pcie: regulator-vdd-3v3-pcie {
+               compatible = "regulator-fixed";
+               regulator-name = "VDD_3V3_PCIE";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&gpio TEGRA234_MAIN_GPIO(Z, 2) GPIO_ACTIVE_HIGH>;
+               regulator-boot-on;
+               enable-active-high;
+       };
+
+       vdd_12v_pcie: regulator-vdd-12v-pcie {
+               compatible = "regulator-fixed";
+               regulator-name = "VDD_12V_PCIE";
+               regulator-min-microvolt = <12000000>;
+               regulator-max-microvolt = <12000000>;
+               gpio = <&gpio TEGRA234_MAIN_GPIO(A, 1) GPIO_ACTIVE_LOW>;
+               regulator-boot-on;
+               enable-active-low;
+       };
+
        bus@0 {
                spi@3270000 {
                        status = "okay";