[PATCH v1 3/3] arm64: dts: qcom: x1e80100-qcp: Add power control and sideband signals for PCIe3
Wenbin Yao
quic_wenbyao at quicinc.com
Wed Mar 19 22:55:02 PDT 2025
From: Qiang Yu <quic_qianyu at quicinc.com>
Add perst, wake and clkreq sideband signals and required regulators in
PCIe3 controller and PHY device tree node. Describe the voltage rails of
the x8 PCI slots for PCIe3 port.
Signed-off-by: Qiang Yu <quic_qianyu at quicinc.com>
Signed-off-by: Wenbin Yao <quic_wenbyao at quicinc.com>
---
arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 119 ++++++++++++++++++++++
1 file changed, 119 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index 28086a2bc..9cd313802 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
@@ -318,6 +318,48 @@ vreg_wcn_3p3: regulator-wcn-3p3 {
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-names = "default";
+ pinctrl-0 = <&pcie_x8_12v>;
+ };
+
+ 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-names = "default";
+ pinctrl-0 = <&pm_sde7_aux_3p3_en>;
+ };
+
+ 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-names = "default";
+ pinctrl-0 = <&pm_sde7_main_3p3_en>;
+};
+
usb-1-ss0-sbu-mux {
compatible = "onnn,fsusb42", "gpio-sbu-mux";
@@ -907,6 +949,60 @@ &mdss_dp3_phy {
status = "okay";
};
+&pm8550ve_8_gpios {
+ pcie_x8_12v: pcie-12v-default-state {
+ pins = "gpio8";
+ function = "normal";
+ output-enable;
+ output-high;
+ bias-pull-down;
+ power-source = <0>;
+ };
+};
+
+&pmc8380_3_gpios {
+ pm_sde7_aux_3p3_en: pcie-aux-3p3-default-state {
+ pins = "gpio8";
+ function = "normal";
+ output-enable;
+ output-high;
+ bias-pull-down;
+ power-source = <0>;
+ };
+
+ pm_sde7_main_3p3_en: pcie-main-3p3-default-state {
+ pins = "gpio6";
+ function = "normal";
+ output-enable;
+ output-high;
+ bias-pull-down;
+ power-source = <0>;
+ };
+};
+
+&pcie3 {
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie3_default>;
+ perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>;
+ wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&pcie3_phy {
+ vdda-phy-supply = <&vreg_l3j_0p8>;
+ vdda-pll-supply = <&vreg_l3e_1p2>;
+ vdda-qref-supply = <&vreg_l3c_0p8>;
+
+ status = "okay";
+};
+
+&pcie3port {
+ vpcie12v-supply = <&vreg_pcie_12v>;
+ vpcie3v3-supply = <&vreg_pcie_3v3>;
+ vpcie3v3aux-supply = <&vreg_pcie_3v3_aux>;
+};
+
&pcie4 {
perst-gpios = <&tlmm 146 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>;
@@ -1118,6 +1214,29 @@ nvme_reg_en: nvme-reg-en-state {
bias-disable;
};
+ pcie3_default: pcie3-default-state {
+ clkreq-n-pins {
+ pins = "gpio144";
+ function = "pcie3_clk";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ perst-n-pins {
+ pins = "gpio143";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ wake-n-pins {
+ pins = "gpio145";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
pcie4_default: pcie4-default-state {
clkreq-n-pins {
pins = "gpio147";
--
2.34.1
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