linux-kernel - [PATCH v3 3/3] arm64: dts: qcom: x1e80100-asus-zenbook-a14: Enable WiFi, Bluetooth

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Message-Id: <20250927-zenbook-improvements-v3-3-d46c7368dc70@vinarskis.com>
Date: Sat, 27 Sep 2025 15:21:37 +0200
From: Aleksandrs Vinarskis <alex@...arskis.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Jens Glathe <jens.glathe@...schoolsolutions.biz>
Subject: [PATCH v3 3/3] arm64: dts: qcom: x1e80100-asus-zenbook-a14: Enable
 WiFi, Bluetooth

Unlike UX3407QA with WCN6855, UX3407RA comes with WCN7850. Definitions
were not added during initial bringup due to lack of hardware to test
it. Add missing definitions that were now confirmed to work.

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Aleksandrs Vinarskis <alex@...arskis.com>
---
 .../boot/dts/qcom/x1e80100-asus-zenbook-a14.dts    | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-asus-zenbook-a14.dts b/arch/arm64/boot/dts/qcom/x1e80100-asus-zenbook-a14.dts
index f8f541153165c7c28351ef97172bdb698074a5c3..7ee558c19968ad9e9410235d6ad1497b7df2d072 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-asus-zenbook-a14.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-asus-zenbook-a14.dts
@@ -12,6 +12,65 @@
 / {
 	model = "ASUS Zenbook A14 (UX3407RA)";
 	compatible = "asus,zenbook-a14-ux3407ra", "qcom,x1e80100";
+
+	wcn7850-pmu {
+		compatible = "qcom,wcn7850-pmu";
+
+		vdd-supply = <&vreg_wcn_0p95>;
+		vddio-supply = <&vreg_l15b_1p8>;
+		vddaon-supply = <&vreg_wcn_0p95>;
+		vdddig-supply = <&vreg_wcn_0p95>;
+		vddrfa1p2-supply = <&vreg_wcn_1p9>;
+		vddrfa1p8-supply = <&vreg_wcn_1p9>;
+
+		bt-enable-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>;
+		wlan-enable-gpios = <&tlmm 117 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&wcn_bt_en>, <&wcn_wlan_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";
+			};
+		};
+	};
 };
 
 &gpu {
@@ -22,6 +81,23 @@ &gpu_zap_shader {
 	firmware-name = "qcom/x1e80100/ASUSTeK/zenbook-a14/qcdxkmsuc8380.mbn";
 };
 
+&pcie4_port0 {
+	wifi@0 {
+		compatible = "pci17cb,1107";
+		reg = <0x10000 0x0 0x0 0x0 0x0>;
+
+		vddaon-supply = <&vreg_pmu_aon_0p59>;
+		vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
+		vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+	};
+};
+
 &panel {
 	compatible = "samsung,atna40cu11", "samsung,atna33xc20";
 	enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
@@ -43,3 +119,21 @@ &remoteproc_cdsp {
 
 	status = "okay";
 };
+
+&uart14 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn7850-bt";
+
+		vddaon-supply = <&vreg_pmu_aon_0p59>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p8-supply = <&vreg_pmu_rfa_1p8>;
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+
+		max-speed = <3000000>;
+	};
+};

-- 
2.51.0