linux-kernel - [PATCH 1/1] arm64: tegra: Enable Jetson Xavier NX USB device mode

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Message-ID: <20211222071528.144472-1-waynec@nvidia.com>
Date:   Wed, 22 Dec 2021 15:15:28 +0800
From:   Wayne Chang <waynec@...dia.com>
To:     <robh+dt@...nel.org>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>
CC:     <spujar@...dia.com>, <mchehab+huawei@...nel.org>,
        <skomatineni@...dia.com>, <devicetree@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Wayne Chang <waynec@...dia.com>
Subject: [PATCH 1/1] arm64: tegra: Enable Jetson Xavier NX USB device mode

This commit enables USB device mode at J5 micro-B
USB port of Jetson Xavier NX.

Signed-off-by: Wayne Chang <waynec@...dia.com>
---
 .../boot/dts/nvidia/tegra194-p3509-0000.dtsi  | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000.dtsi
index a055f17218bb..f4733b98fcaa 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000.dtsi
@@ -1826,6 +1826,10 @@ padctl@...0000 {
 			pads {
 				usb2 {
 					lanes {
+						usb2-0 {
+							status = "okay";
+						};
+
 						usb2-1 {
 							status = "okay";
 						};
@@ -1846,6 +1850,20 @@ usb3-2 {
 			};
 
 			ports {
+				usb2-0 {
+					mode = "otg";
+					status = "okay";
+					usb-role-switch;
+					connector {
+						compatible = "gpio-usb-b-connector",
+							"usb-b-connector";
+						label = "micro-USB";
+						type = "micro";
+						vbus-gpio = <&gpio TEGRA194_MAIN_GPIO(Z, 1)
+								GPIO_ACTIVE_LOW>;
+					};
+				};
+
 				usb2-1 {
 					mode = "host";
 					status = "okay";
@@ -1874,6 +1892,13 @@ usb@...0000 {
 			phy-names = "usb2-1", "usb2-2", "usb3-2";
 		};
 
+		usb@...0000 {
+			status = "okay";
+
+			phys = <&{/bus@...adctl@...0000/pads/usb2/lanes/usb2-0}>;
+			phy-names = "usb2-0";
+		};
+
 		spi@...0000 {
 			status = "okay";
 
-- 
2.25.1