linux-kernel - [PATCH 3/3] arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb controller

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Message-ID: <20240206114745.1388491-4-quic_kriskura@quicinc.com>
Date: Tue, 6 Feb 2024 17:17:45 +0530
From: Krishna Kurapati <quic_kriskura@...cinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring
	<robh+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <quic_ppratap@...cinc.com>,
        <quic_jackp@...cinc.com>, Andrew Halaney <ahalaney@...hat.com>,
        "Krishna
 Kurapati" <quic_kriskura@...cinc.com>
Subject: [PATCH 3/3] arm64: dts: qcom: sa8540-ride: Enable first port of tertiary usb controller

From: Andrew Halaney <ahalaney@...hat.com>

There is now support for the multiport USB controller this uses so
enable it.

The board only has a single port hooked up (despite it being wired up to
the multiport IP on the SoC). There's also a USB 2.0 mux hooked up,
which by default on boot is selected to mux properly. Grab the gpio
controlling that and ensure it stays in the right position so USB 2.0
continues to be routed from the external port to the SoC.

Signed-off-by: Andrew Halaney <ahalaney@...hat.com>
Co-developed-by: Krishna Kurapati <quic_kriskura@...cinc.com>
Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
index b04f72ec097c..eed1ddc29bc1 100644
--- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
+++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
@@ -503,6 +503,18 @@ &usb_2_qmpphy0 {
 	status = "okay";
 };
 
+&usb_2 {
+	pinctrl-0 = <&usb2_en>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&usb_2_dwc3 {
+	phy-names = "usb2-port0", "usb3-port0";
+	phys = <&usb_2_hsphy0>, <&usb_2_qmpphy0>;
+};
+
 &xo_board_clk {
 	clock-frequency = <38400000>;
 };
@@ -655,4 +667,13 @@ wake-pins {
 			bias-pull-up;
 		};
 	};
+
+	usb2_en: usb2-en-state {
+		/* TS3USB221A USB2.0 mux select */
+		pins = "gpio24";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
 };
-- 
2.34.1