linux-kernel - [Patch V8 6/8] arm64: tegra: Enable xudc on Jetson TX1

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Date:   Wed, 4 Sep 2019 13:53:58 +0530
From:   Nagarjuna Kristam <nkristam@...dia.com>
To:     <balbi@...nel.org>, <gregkh@...uxfoundation.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>,
        <mark.rutland@....com>, <robh+dt@...nel.org>, <kishon@...com>
CC:     <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Nagarjuna Kristam" <nkristam@...dia.com>
Subject: [Patch V8 6/8] arm64: tegra: Enable xudc on Jetson TX1

Enable XUSB device mode driver for USB0 slot on Jetson TX1.

Signed-off-by: Nagarjuna Kristam <nkristam@...dia.com>
Reviewed-by: JC Kuo <jckuo@...dia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 31 +++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
index a7dc319..6aba1ba 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
@@ -1362,7 +1362,7 @@
 				status = "okay";
 
 				lanes {
-					usb2-0 {
+					micro_b: usb2-0 {
 						nvidia,function = "xusb";
 						status = "okay";
 					};
@@ -1483,6 +1483,21 @@
 		vmmc-supply = <&vdd_3v3_sd>;
 	};
 
+	usb@...d0000 {
+		status = "okay";
+		phys = <&micro_b>;
+		phy-names = "usb2";
+		avddio-usb-supply = <&vdd_3v3_sys>;
+		hvdd-usb-supply = <&vdd_1v8>;
+		usb-role-switch;
+
+		port {
+			usb_role_switch: endpoint {
+				remote-endpoint = <&usb_b_conn_ep>;
+			};
+		};
+	};
+
 	regulators {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -1641,4 +1656,18 @@
 			linux,code = <KEY_VOLUMEUP>;
 		};
 	};
+
+	usb_type_b: connector {
+		compatible = "linux,usb-conn-gpio", "gpio-usb-b-connector";
+		label = "micro-USB";
+		type = "micro";
+		vbus-gpio = <&gpio TEGRA_GPIO(Z, 0) GPIO_ACTIVE_LOW>;
+
+		port {
+			usb_b_conn_ep: endpoint {
+				remote-endpoint = <&usb_role_switch>;
+			};
+		};
+	};
+
 };
-- 
2.7.4