linux-kernel - [PATCH 10/10] arm64: dts: qcom: lemans-ride-common: Fix up WCN power grid

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Message-Id: <20251205-topic-wcn6855_pmu_dtbdings-v1-10-165611f687c8@oss.qualcomm.com>
Date: Fri, 05 Dec 2025 13:47:29 +0100
From: Konrad Dybcio <konradybcio@...nel.org>
To: Jeff Johnson <jeff.johnson@....qualcomm.com>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Marcel Holtmann <marcel@...tmann.org>, 
 Luiz Augusto von Dentz <luiz.dentz@...il.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Balakrishna Godavarthi <quic_bgodavar@...cinc.com>, 
 Rocky Liao <quic_rjliao@...cinc.com>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>, 
 linux-arm-msm@...r.kernel.org, linux-bluetooth@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH 10/10] arm64: dts: qcom: lemans-ride-common: Fix up WCN
 power grid

From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Make the dt checker happy by filling out the required properties in
line with the schematics.

Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi | 32 ++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
index c69aa2f41ce2..069d58e6b6c5 100644
--- a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
@@ -79,6 +79,18 @@ vreg_3p0: vreg-3p0-regulator {
 		vin-supply = <&vreg_12p0>;
 	};
 
+	vreg_3p3: vreg-3p3-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "VREG_3P3";
+
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		vin-supply = <&vreg_12p0>;
+	};
+
 	vreg_conn_1p8: vreg_conn_1p8 {
 		compatible = "regulator-fixed";
 		regulator-name = "vreg_conn_1p8";
@@ -95,6 +107,22 @@ vreg_conn_pa: vreg_conn_pa {
 		gpio = <&pmm8654au_1_gpios 6 GPIO_ACTIVE_HIGH>;
 	};
 
+	/*
+	 * TODO: These two regulators are actually part of the removable M.2
+	 * card and not the mainboard. Need to describe this differently.
+	 * Functionally it works correctly, because all we need to do is to
+	 * turn on the actual 3.3V supply above.
+	 */
+	vreg_wcn_0p95: vreg-wcn-0p95-regulator {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_WCN_0P95";
+		regulator-min-microvolt = <950000>;
+		regulator-max-microvolt = <950000>;
+
+		vin-supply = <&vreg_3p3>;
+	};
+
 	wcn6855-pmu {
 		compatible = "qcom,wcn6855-pmu";
 
@@ -104,6 +132,8 @@ wcn6855-pmu {
 		vddio-supply = <&vreg_conn_pa>;
 		vddaon-supply = <&vreg_l2c>;
 		vddpmu-supply = <&vreg_conn_1p8>;
+		vddpmumx-supply = <&vreg_wcn_0p95>;
+		vddpmucx-supply = <&vreg_wcn_0p95>;
 		vddrfa0p95-supply = <&vreg_l2c>;
 		vddrfa1p3-supply = <&vreg_l6e>;
 		vddrfa1p9-supply = <&vreg_s5a>;
@@ -974,6 +1004,8 @@ bluetooth {
 		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
 		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
 		vddrfa1p7-supply = <&vreg_pmu_rfa_1p7>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
 	};
 };
 

-- 
2.52.0