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Date:   Tue, 19 Jan 2021 10:23:49 +0800
From:   JC Kuo <jckuo@...dia.com>
To:     <gregkh@...uxfoundation.org>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <robh+dt@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <stable@...r.kernel.org>,
        JC Kuo <jckuo@...dia.com>
Subject: [PATCH] arm64: tegra: Enable Jetson-Xavier J512 USB host

This commit enables USB host mode at J512 type-C port of Jetson-Xavier.

Signed-off-by: JC Kuo <jckuo@...dia.com>
---
 .../arm64/boot/dts/nvidia/tegra194-p2888.dtsi |  8 +++++++
 .../boot/dts/nvidia/tegra194-p2972-0000.dts   | 24 +++++++++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
index d71b7a1140fe..7e7b0eb90c80 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
@@ -93,6 +93,10 @@ padctl@...0000 {
 			vclamp-usb-supply = <&vdd_1v8ao>;
 
 			ports {
+				usb2-0 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
 				usb2-1 {
 					vbus-supply = <&vdd_5v0_sys>;
 				};
@@ -105,6 +109,10 @@ usb3-0 {
 					vbus-supply = <&vdd_5v0_sys>;
 				};
 
+				usb3-2 {
+					vbus-supply = <&vdd_5v0_sys>;
+				};
+
 				usb3-3 {
 					vbus-supply = <&vdd_5v0_sys>;
 				};
diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
index 54d057beec59..8697927b1fe7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
@@ -57,6 +57,10 @@ padctl@...0000 {
 			pads {
 				usb2 {
 					lanes {
+						usb2-0 {
+							status = "okay";
+						};
+
 						usb2-1 {
 							status = "okay";
 						};
@@ -73,6 +77,10 @@ usb3-0 {
 							status = "okay";
 						};
 
+						usb3-2 {
+							status = "okay";
+						};
+
 						usb3-3 {
 							status = "okay";
 						};
@@ -81,6 +89,11 @@ usb3-3 {
 			};
 
 			ports {
+				usb2-0 {
+					mode = "host";
+					status = "okay";
+				};
+
 				usb2-1 {
 					mode = "host";
 					status = "okay";
@@ -96,6 +109,11 @@ usb3-0 {
 					status = "okay";
 				};
 
+				usb3-2 {
+					nvidia,usb2-companion = <0>;
+					status = "okay";
+				};
+
 				usb3-3 {
 					nvidia,usb2-companion = <3>;
 					maximum-speed = "super-speed";
@@ -107,11 +125,13 @@ usb3-3 {
 		usb@...0000 {
 			status = "okay";
 
-			phys =	<&{/bus@...adctl@...0000/pads/usb2/lanes/usb2-1}>,
+			phys =	<&{/bus@...adctl@...0000/pads/usb2/lanes/usb2-0}>,
+				<&{/bus@...adctl@...0000/pads/usb2/lanes/usb2-1}>,
 				<&{/bus@...adctl@...0000/pads/usb2/lanes/usb2-3}>,
 				<&{/bus@...adctl@...0000/pads/usb3/lanes/usb3-0}>,
+				<&{/bus@...adctl@...0000/pads/usb3/lanes/usb3-2}>,
 				<&{/bus@...adctl@...0000/pads/usb3/lanes/usb3-3}>;
-			phy-names = "usb2-1", "usb2-3", "usb3-0", "usb3-3";
+			phy-names = "usb2-0", "usb2-1", "usb2-3", "usb3-0", "usb3-2", "usb3-3";
 		};
 
 		pwm@...0000 {
-- 
2.25.1

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