.../boot/dts/qcom/x1e80100-microsoft-romulus.dtsi | 143 +++++++++++++++++++++ 1 file changed, 143 insertions(+)
From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
It comes soldered onboard, just like on the QCP.
Unfortunately, the rfkill pin is triggered by default, so a workaround
is needed to convince the Linux driver to enable the hw, after which it
works just fine.
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
Trivial changes (similar to other X1 boards), I've been running them
for a couple months without much problems.
---
Changes in v2:
- Drop the PCIe patch, as the supplies don't seem to be controllable
(keep the patch series name unchanged to make sure tools are happy)
- Link to v1: https://lore.kernel.org/r/20250812-topic-romulus_wifi_pci-v1-0-2adbed1b1f1d@oss.qualcomm.com
---
.../boot/dts/qcom/x1e80100-microsoft-romulus.dtsi | 143 +++++++++++++++++++++
1 file changed, 143 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi b/arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi
index 0ad4276e9c5f87910477c3389463a109e8d63ae6..ed468b93ba50e1943671d9e7d8b77d181a7c2658 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi
@@ -331,6 +331,42 @@ vph_pwr: regulator-vph-pwr {
regulator-boot-on;
};
+ vreg_wcn_0p95: regulator-wcn-0p95 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VREG_WCN_0P95";
+ regulator-min-microvolt = <950000>;
+ regulator-max-microvolt = <950000>;
+
+ vin-supply = <&vreg_wcn_3p3>;
+ };
+
+ vreg_wcn_1p9: regulator-wcn-1p9 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VREG_WCN_1P9";
+ regulator-min-microvolt = <1900000>;
+ regulator-max-microvolt = <1900000>;
+
+ vin-supply = <&vreg_wcn_3p3>;
+ };
+
+ vreg_wcn_3p3: regulator-wcn-3p3 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VREG_WCN_3P3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 214 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-0 = <&wcn_sw_en>;
+ pinctrl-names = "default";
+
+ regulator-boot-on;
+ };
+
sound {
compatible = "qcom,x1e80100-sndcard";
model = "X1E80100-Romulus";
@@ -410,6 +446,65 @@ platform {
};
};
};
+
+ wcn7850-pmu {
+ compatible = "qcom,wcn7850-pmu";
+
+ vdd-supply = <&vreg_wcn_0p95>;
+ vddio-supply = <&vreg_l15b>;
+ vddaon-supply = <&vreg_wcn_0p95>;
+ vdddig-supply = <&vreg_wcn_0p95>;
+ vddrfa1p2-supply = <&vreg_wcn_1p9>;
+ vddrfa1p8-supply = <&vreg_wcn_1p9>;
+
+ wlan-enable-gpios = <&tlmm 117 GPIO_ACTIVE_HIGH>;
+ bt-enable-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>;
+
+ pinctrl-0 = <&wcn_wlan_bt_en>;
+ pinctrl-names = "default";
+
+ regulators {
+ vreg_pmu_rfa_cmn: ldo0 {
+ regulator-name = "vreg_pmu_rfa_cmn";
+ };
+
+ vreg_pmu_aon_0p59: ldo1 {
+ regulator-name = "vreg_pmu_aon_0p59";
+ };
+
+ vreg_pmu_wlcx_0p8: ldo2 {
+ regulator-name = "vreg_pmu_wlcx_0p8";
+ };
+
+ vreg_pmu_wlmx_0p85: ldo3 {
+ regulator-name = "vreg_pmu_wlmx_0p85";
+ };
+
+ vreg_pmu_btcmx_0p85: ldo4 {
+ regulator-name = "vreg_pmu_btcmx_0p85";
+ };
+
+ vreg_pmu_rfa_0p8: ldo5 {
+ regulator-name = "vreg_pmu_rfa_0p8";
+ };
+
+ vreg_pmu_rfa_1p2: ldo6 {
+ regulator-name = "vreg_pmu_rfa_1p2";
+ };
+
+ vreg_pmu_rfa_1p8: ldo7 {
+ regulator-name = "vreg_pmu_rfa_1p8";
+ };
+
+ vreg_pmu_pcie_0p9: ldo8 {
+ regulator-name = "vreg_pmu_pcie_0p9";
+ };
+
+ vreg_pmu_pcie_1p8: ldo9 {
+ regulator-name = "vreg_pmu_pcie_1p8";
+ };
+ };
+ };
};
&apps_rsc {
@@ -1028,6 +1123,23 @@ &pcie4_phy {
status = "okay";
};
+&pcie4_port0 {
+ wifi@0 {
+ compatible = "pci17cb,1107";
+ reg = <0x10000 0x0 0x0 0x0 0x0>;
+
+ vddaon-supply = <&vreg_pmu_aon_0p59>;
+ vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+ vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+ vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+ vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+ vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+ vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+ vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
+ vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
+ };
+};
+
&pcie6a {
perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
@@ -1234,6 +1346,13 @@ ssam_state: ssam-state-state {
bias-disable;
};
+ wcn_wlan_bt_en: wcn-wlan-bt-en-state {
+ pins = "gpio116", "gpio117";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
pcie3_default: pcie3-default-state {
perst-n-pins {
pins = "gpio143";
@@ -1309,6 +1428,13 @@ wcd_default: wcd-reset-n-active-state {
output-low;
};
+ wcn_sw_en: wcn-sw-en-state {
+ pins = "gpio214";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
cam_indicator_en: cam-indicator-en-state {
pins = "gpio225";
function = "gpio";
@@ -1332,6 +1458,23 @@ embedded-controller {
};
};
+&uart14 {
+ status = "okay";
+
+ bluetooth {
+ compatible = "qcom,wcn7850-bt";
+ max-speed = <3200000>;
+
+ vddaon-supply = <&vreg_pmu_aon_0p59>;
+ vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+ vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+ vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+ vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+ vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+ vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+ };
+};
+
&usb_1_ss0_hsphy {
vdd-supply = <&vreg_l3j>;
vdda12-supply = <&vreg_l2j>;
---
base-commit: 4ac65880ebca1b68495bd8704263b26c050ac010
change-id: 20250812-topic-romulus_wifi_pci-660eafdd7591
Best regards,
--
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
On Tue, 09 Sep 2025 10:24:07 +0200, Konrad Dybcio wrote:
> It comes soldered onboard, just like on the QCP.
>
> Unfortunately, the rfkill pin is triggered by default, so a workaround
> is needed to convince the Linux driver to enable the hw, after which it
> works just fine.
>
>
> [...]
Applied, thanks!
[1/1] arm64: dts: qcom: x1e80100-romulus: Add WCN7850 Wi-Fi/BT
commit: fc8089535425897b6efacc8531e4b5b63b85b435
Best regards,
--
Bjorn Andersson <andersson@kernel.org>
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