[PATCH v7 usb-next 4/4] dt-bindings: usb: xhci: include the roothub and a device in the example

[martin.blumenstingl@googlemail.com (Martin Blumenstingl)]

This extends the existing example from the USB xHCI binding
documentation so it includes the roothub and an actual device.
The goal of this is to show that the roothub is specified alongside the
actual devices on the USB bus (which is important because a device on
the USB bus - for example a hub - might need it's own phys / phy-names
properties. modelling the roothub as separate device and not nesting the
other devices on the bus below the roothub allows us to keep the
properties, for example the PHYs, separated).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 Documentation/devicetree/bindings/usb/usb-xhci.txt | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index 5b49ba9f2f9a..20e5ce2b016a 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -42,4 +42,27 @@ Example:
 		compatible = "generic-xhci";
 		reg = <0xf0931000 0x8c8>;
 		interrupts = <0x0 0x4e 0x0>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* see usb-roothub.txt */
+		roothub at 0 {
+			compatible = "usb1d6b,3", "usb1d6b,2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			port at 1 {
+				reg = <1>;
+				phys = <&usb2_phy1>, <&usb3_phy1>;
+				phy-names = "usb2-phy", "usb3-phy";
+			};
+		};
+
+		/* see usb-device.txt */
+		hub: genesys at 1 {
+			compatible = "usb5e3,608";
+			reg = <1>;
+		};
 	};
-- 
2.14.2