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From: Qian Zhang <qian.zhang@oss.qualcomm.com>
To: andersson@kernel.org, konradybcio@kernel.org
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Qian Zhang <qian.zhang@oss.qualcomm.com>
Subject: [PATCH v1] arm64: dts: qcom: Add fixed regulators for WLAN supplies
Date: Fri,  1 May 2026 13:19:18 +0800	[thread overview]
Message-ID: <20260501051918.1990713-1-qian.zhang@oss.qualcomm.com> (raw)

Add GPIO-controlled fixed regulators for the WLAN power rails on the
Arduino VENTUNO Q board:

  - wlan_reg_3v3: 3.3V supply controlled by GPIO54 (wlan_rf_kill)
  - wlan_reg_1v8: 1.8V supply controlled by GPIO56 (wlan_en)

Both regulators are enabled at boot to support WLAN initialization.

Signed-off-by: Qian Zhang <qian.zhang@oss.qualcomm.com>
---
Changes in v1:
  - Clarified GPIO roles: GPIO54 for wlan_rf_kill, GPIO56 for wlan_en
  - Improved commit message readability with bullet list format

 .../boot/dts/qcom/monaco-arduino-monza.dts    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts b/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
index ca14f0ea4dae..1a40ac5bb4bb 100644
--- a/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-arduino-monza.dts
@@ -153,6 +153,27 @@ vreg_nvme: regulator-3p3-m2 {
 		enable-active-high;
 		startup-delay-us = <20000>;
 	};
+
+	wlan_reg_3v3: wlan-3v3-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "wlan_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+	};
+
+	wlan_reg_1v8: wlan-1v8-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "wlan_1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&tlmm 56 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-on;
+	};
+
 };
 
 &ethernet0 {
-- 
2.34.1


                 reply	other threads:[~2026-05-01  5:19 UTC|newest]

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