linux-kernel - [PATCH v1 3/4] arm64: dts: imx93-var-som-symphony: Add USB support

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Message-ID: <20251205182258.50397-4-stefano.r@variscite.com>
Date: Fri,  5 Dec 2025 19:22:56 +0100
From: Stefano Radaelli <stefano.r@...iscite.com>
To: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Stefano Radaelli <stefano.r@...iscite.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v1 3/4] arm64: dts: imx93-var-som-symphony: Add USB support

The Symphony carrier board includes a USB Type-C connector on the USB1
port through an NXP PTN5150 Type-C controller connected on the I2C bus.
The PTN5150 provides cable orientation detection and role switching
information to the USB controller.

This patch adds the PTN5150 node, its interrupt line, the required pin
muxing, and wires the controller to the USB1 OTG dual-role device using
the USB role-switch framework.

This patch adds also USB2 support, that remains in host-only mode,
matching the hardware capabilities of the Symphony board.

Signed-off-by: Stefano Radaelli <stefano.r@...iscite.com>
---
 .../dts/freescale/imx93-var-som-symphony.dts  | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
index 39bfbd0428a9..ee69d6b268a4 100644
--- a/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-var-som-symphony.dts
@@ -251,6 +251,22 @@ pca9534: gpio@20 {
 		#gpio-cells = <2>;
 		wakeup-source;
 	};
+
+	/* USB Type-C Controller */
+	ptn5150: typec@3d {
+		compatible = "nxp,ptn5150";
+		reg = <0x3d>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ptn5150>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <10 IRQ_TYPE_NONE>;
+
+		port {
+			typec1_dr_sw: endpoint {
+				remote-endpoint = <&usb1_drd_sw>;
+			};
+		};
+	};
 };
 
 /* Console */
@@ -267,6 +283,29 @@ &lpuart6 {
 	status = "okay";
 };
 
+&usbotg1 {
+	dr_mode = "otg";
+	hnp-disable;
+	srp-disable;
+	adp-disable;
+	usb-role-switch;
+	samsung,picophy-pre-emp-curr-control = <3>;
+	samsung,picophy-dc-vol-level-adjust = <7>;
+	status = "okay";
+
+	port {
+		usb1_drd_sw: endpoint {
+			remote-endpoint = <&typec1_dr_sw>;
+		};
+	};
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	disable-over-current;
+	status = "okay";
+};
+
 /* SD */
 &usdhc2 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
@@ -351,6 +390,12 @@ MX93_PAD_CCM_CLKO1__GPIO3_IO26		0x31e
 		>;
 	};
 
+	pinctrl_ptn5150: ptn5150grp {
+		fsl,pins = <
+			MX93_PAD_PDM_BIT_STREAM1__GPIO1_IO10            0x31e
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX93_PAD_UART1_RXD__LPUART1_RX			0x31e
-- 
2.47.3