linux-kernel - [PATCH] arm64: dts: imx8mp-evk: add dual-role usb port1 support

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Message-Id: <20230323105826.2058003-1-m.felsch@pengutronix.de>
Date:   Thu, 23 Mar 2023 11:58:26 +0100
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, linux-imx@....com, festevam@...il.com
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: [PATCH] arm64: dts: imx8mp-evk: add dual-role usb port1 support

The i.MX8MP-EVK has a dual-role usb-type-c port marked as PORT1. By this
commit the dual-role support is added which allows the user-space to
assign usb-gadget functions to it via the configFS.

Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 59 ++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index f2d93437084be..982fe35f09a7e 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -5,7 +5,9 @@
 
 /dts-v1/;
 
+#include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/phy/phy-imx8-pcie.h>
+#include <dt-bindings/usb/pd.h>
 #include "imx8mp.dtsi"
 
 / {
@@ -336,6 +338,34 @@ &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c2>;
 	status = "okay";
+
+	tcpc@50 {
+		compatible = "nxp,ptn5110";
+		reg = <0x50>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tcpc>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			power-role = "dual";
+			data-role = "dual";
+			try-power-role = "sink";
+			source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+				     PDO_VAR(5000, 20000, 3000)>;
+			op-sink-microwatt = <15000000>;
+			self-powered;
+		};
+
+		port {
+			usb_con_ss: endpoint {
+				remote-endpoint = <&usb_dwc3_0_drd>;
+			};
+		};
+	};
 };
 
 &i2c3 {
@@ -449,14 +479,37 @@ &uart2 {
 	status = "okay";
 };
 
+&usb3_phy0 {
+	status = "okay";
+};
+
 &usb3_phy1 {
 	status = "okay";
 };
 
+&usb3_0 {
+	status = "okay";
+};
+
 &usb3_1 {
 	status = "okay";
 };
 
+&usb_dwc3_0 {
+	dr_mode = "otg";
+	hnp-disable;
+	srp-disable;
+	adp-disable;
+	usb-role-switch;
+	status = "okay";
+
+	port {
+		usb_dwc3_0_drd: endpoint {
+			remote-endpoint = <&usb_con_ss>;
+		};
+	};
+};
+
 &usb_dwc3_1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usb1_vbus>;
@@ -666,6 +719,12 @@ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19	0x40
 		>;
 	};
 
+	pinctrl_tcpc: tcpcgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19	0x159
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX	0x140
-- 
2.30.2