From ac62730dbc71e4e2320b368e86e0c6ea3e41f1f5 Mon Sep 17 00:00:00 2001 From: Ziyue Zhang Date: Fri, 9 Jan 2026 18:45:04 +0800 Subject: [PATCH] arm64: dts: qcom: Add PCIe3 and PCIe5 regulators for HAMAO-IOT-EVK board HAMAO IoT EVK uses PCIe5 to connect an SDX65 module for WWAN functionality and PCIe3 to connect a SATA controller. These interfaces require multiple voltage rails: PCIe5 needs 3.3V supplied by vreg_wwan, while PCIe3 requires 12V, 3.3V, and 3.3V AUX rails, controlled via PMIC GPIOs. Add the required fixed regulators with related pin configuration, and connect them to the PCIe3 and PCIe5 ports to ensure proper power for the SDX65 module and SATA controller. Move reset and wake GPIO properties from RC nodes to port nodes. Signed-off-by: Ziyue Zhang Reviewed-by: Krishna Chaitanya Chundru Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20260109104504.3147745-4-ziyue.zhang@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 97 +++++++++++++++++++++ arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi | 6 -- 2 files changed, 97 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts index 898b92627f844..07378ee183f92 100644 --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts @@ -253,6 +253,48 @@ 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: 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"; + }; + + 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"; + }; + /* Left unused as the retimer is not used on this board. */ vreg_rtmr0_1p15: regulator-rtmr0-1p15 { compatible = "regulator-fixed"; @@ -920,7 +962,19 @@ status = "okay"; }; +&pcie3_port0 { + vpcie12v-supply = <&vreg_pcie_12v>; + vpcie3v3-supply = <&vreg_pcie_3v3>; + vpcie3v3aux-supply = <&vreg_pcie_3v3_aux>; + + reset-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>; +}; + &pcie4_port0 { + reset-gpios = <&tlmm 146 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>; + wifi@0 { compatible = "pci17cb,1107"; reg = <0x10000 0x0 0x0 0x0 0x0>; @@ -937,10 +991,24 @@ }; }; +&pcie5 { + vddpe-3v3-supply = <&vreg_wwan>; +}; + +&pcie5_port0 { + reset-gpios = <&tlmm 149 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 151 GPIO_ACTIVE_LOW>; +}; + &pcie6a { vddpe-3v3-supply = <&vreg_nvme>; }; +&pcie6a_port0 { + reset-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>; +}; + &pm8550_gpios { rtmr0_default: rtmr0-reset-n-active-state { pins = "gpio10"; @@ -961,6 +1029,17 @@ }; }; +&pm8550ve_8_gpios { + pcie_x8_12v: pcie-12v-default-state { + pins = "gpio8"; + function = "normal"; + output-enable; + output-high; + bias-pull-down; + power-source = <0>; + }; +}; + &pm8550ve_9_gpios { usb0_1p8_reg_en: usb0-1p8-reg-en-state { pins = "gpio8"; @@ -1025,6 +1104,24 @@ }; }; +&pmc8380_3_gpios { + pm_sde7_aux_3p3_en: pcie-aux-3p3-default-state { + pins = "gpio8"; + function = "normal"; + output-enable; + bias-pull-down; + power-source = <0>; + }; + + pm_sde7_main_3p3_en: pcie-main-3p3-default-state { + pins = "gpio6"; + function = "normal"; + output-enable; + bias-pull-down; + power-source = <0>; + }; +}; + &pmc8380_5_gpios { usb0_pwr_1p15_reg_en: usb0-pwr-1p15-reg-en-state { pins = "gpio8"; diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi index 81866f94fe018..b8e3e04a6fbd4 100644 --- a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi @@ -405,9 +405,6 @@ }; &pcie4 { - perst-gpios = <&tlmm 146 GPIO_ACTIVE_LOW>; - wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>; - pinctrl-0 = <&pcie4_default>; pinctrl-names = "default"; @@ -436,9 +433,6 @@ }; &pcie6a { - perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>; - wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>; - pinctrl-0 = <&pcie6a_default>; pinctrl-names = "default"; -- 2.47.3