linux-kernel - [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: Add vbus regulator support for Type-A ports

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20251219161407.2075701-1-krishna.kurapati@oss.qualcomm.com>
Date: Fri, 19 Dec 2025 21:44:07 +0530
From: Krishna Kurapati <krishna.kurapati@....qualcomm.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>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krishna Kurapati <krishna.kurapati@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: Add vbus regulator support for Type-A ports

The Multiport controller on Hamoa EVK platform is connected to Two Type-A
ports. VBUS for each of these ports are provided by a TPS2559QWDRCTQ1
regulator, controlled from PMIC GPIOs.

Add the necessary regulators and GPIO configuration to power these.

Implement connector nodes to embed the vbus supply within them. Since
there is no entity currently that can read vbus supply from a Type-A
connector and control it, mark the supplies as always on.

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
---
Changes in v3:
- Added connector-a nodes and embedded vbus supply in them
- Added RB Tag of Konrad from internal review after adding connector nodes

Link to v2:
https://lore.kernel.org/all/20251209041701.3245452-1-krishna.kurapati@oss.qualcomm.com/

Changes in v2:
- Re-ordered nodes to be in sorted order.

Link to v1:
https://lore.kernel.org/all/20251208085152.2597818-1-krishna.kurapati@oss.qualcomm.com/

 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 63 ++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 36dd6599402b..88e3e7bed998 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "hamoa-iot-som.dtsi"
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 / {
 	model = "Qualcomm Technologies, Inc. Hamoa IoT EVK";
@@ -48,6 +49,32 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	connector3 {
+		compatible = "usb-a-connector";
+		label = "USB-3-Type-A";
+		power-role = "source";
+
+		vbus-supply = <&regulator_usb3_vbus>;
+
+		port {
+			connector_3_in: endpoint {
+			};
+		};
+	};
+
+	connector6 {
+		compatible = "usb-a-connector";
+		label = "USB-6-Type-A";
+		power-role = "source";
+
+		vbus-supply = <&regulator_usb6_vbus>;
+
+		port {
+			connector_4_in: endpoint {
+			};
+		};
+	};
+
 	pmic-glink {
 		compatible = "qcom,x1e80100-pmic-glink",
 			     "qcom,sm8550-pmic-glink",
@@ -344,6 +371,26 @@ vreg_rtmr2_3p3: regulator-rtmr2-3p3 {
 		regulator-boot-on;
 	};
 
+	regulator_usb3_vbus: regulator-usb3-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "USB3_VBUS";
+		gpio = <&pm8550ve_9_gpios 4 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&usb3_en>;
+		pinctrl-names = "default";
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	regulator_usb6_vbus: regulator-usb6-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "USB6_VBUS";
+		gpio = <&pm8550ve_9_gpios 5 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&usb6_en>;
+		pinctrl-names = "default";
+		enable-active-high;
+		regulator-always-on;
+	};
+
 	vph_pwr: regulator-vph-pwr {
 		compatible = "regulator-fixed";
 
@@ -877,6 +924,22 @@ usb0_1p8_reg_en: usb0-1p8-reg-en-state {
 		input-disable;
 		output-enable;
 	};
+
+	usb3_en: usb3-en-state {
+		pins = "gpio4";
+		function = "normal";
+		qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+		output-enable;
+		power-source = <0>;
+	};
+
+	usb6_en: usb6-en-state {
+		pins = "gpio5";
+		function = "normal";
+		qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>;
+		output-enable;
+		power-source = <0>;
+	};
 };
 
 &pmc8380_5_gpios {
-- 
2.34.1