Specify the vddpe-3v3-supply regulator for PCIe3 using &vreg_wwan to
ensure proper power configuration.Describe the voltage rails of
the x8 PCI slots for PCIe3 port.

Signed-off-by: Ziyue Zhang <ziyue.zhang@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index f0e4abbcc1ac..0eb85d6cf4e9 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -414,6 +414,48 @@ vreg_wwan: regulator-wwan {
 		regulator-boot-on;
 	};
 
+	vreg_pcie_12v: regulator-pcie-12v {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_PCIE_12V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+
+		gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&pcie_x8_12v>;
+		pinctrl-names = "default";
+	};
+
+	vreg_pcie_3v3_aux: regulator-pcie-3v3-aux {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_PCIE_3P3_AUX";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pmc8380_3_gpios 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&pm_sde7_aux_3p3_en>;
+		pinctrl-names = "default";
+	};
+
+	vreg_pcie_3v3: regulator-pcie-3v3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_PCIE_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pmc8380_3_gpios 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&pm_sde7_main_3p3_en>;
+		pinctrl-names = "default";
+};
+
 	sound {
 		compatible = "qcom,x1e80100-sndcard";
 		model = "X1E80100-EVK";
@@ -832,6 +874,12 @@ &mdss_dp3_phy {
 	status = "okay";
 };
 
+&pcie3_port {
+	vpcie12v-supply = <&vreg_pcie_12v>;
+	vpcie3v3-supply = <&vreg_pcie_3v3>;
+	vpcie3v3aux-supply = <&vreg_pcie_3v3_aux>;
+};
+
 &pcie5 {
 	vddpe-3v3-supply = <&vreg_wwan>;
 };
-- 
2.34.1