linux-kernel - [PATCH] arm64: dts: qcom: qcs8300-ride: Enable second USB controller on QCS8300 Ride

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Message-ID: <20250310104743.976265-1-quic_mnagar@quicinc.com>
Date: Mon, 10 Mar 2025 16:17:43 +0530
From: Manish Nagar <quic_mnagar@...cinc.com>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>, Rob Herring <robh@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>,
        Krishna Kurapati
	<krishna.kurapati@....qualcomm.com>
Subject: [PATCH] arm64: dts: qcom: qcs8300-ride: Enable second USB controller on QCS8300 Ride

Enable secondary USB controller on QCS8300 Ride platform. Since it is a
Type-A port, the dr_mode has been set to "host". The VBUS to connected
peripherals is provided by TPS2559QWDRCTQ1 regulator connected to the
port. The regulator has an enable pin controlled by PMM8650. Model it as
fixed regulator and keep it Always-On at boot, since the regulator is
GPIO controlled regulator.

Co-developed-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
Signed-off-by: Manish Nagar <quic_mnagar@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 35 +++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 916d4e6da922..7947e48f6a95 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -22,6 +22,16 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	regulator-usb2-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "USB2_VBUS";
+		gpio = <&pmm8650au_1_gpios 7 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&usb2_en>;
+		pinctrl-names = "default";
+		enable-active-high;
+		regulator-always-on;
+	};
 };
 
 &apps_rsc {
@@ -286,6 +296,15 @@ queue3 {
 	};
 };
 
+&pmm8650au_1_gpios {
+	usb2_en: usb2-en-state {
+		pins = "gpio7";
+		function = "normal";
+		output-enable;
+		power-source = <0>;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -355,6 +374,14 @@ &usb_1_hsphy {
 	status = "okay";
 };
 
+&usb_2_hsphy {
+	vdda-pll-supply = <&vreg_l7a>;
+	vdda18-supply = <&vreg_l7c>;
+	vdda33-supply = <&vreg_l9a>;
+
+	status = "okay";
+};
+
 &usb_qmpphy {
 	vdda-phy-supply = <&vreg_l7a>;
 	vdda-pll-supply = <&vreg_l5a>;
@@ -369,3 +396,11 @@ &usb_1 {
 &usb_1_dwc3 {
 	dr_mode = "peripheral";
 };
+
+&usb_2 {
+	status = "okay";
+};
+
+&usb_2_dwc3 {
+	dr_mode = "host";
+};
-- 
2.25.1