--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/bindings/usb/ehci-orion.txt	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/bindings/usb/ehci-orion.txt	2021-02-04 17:41:59.000000000 +0000
@@ -6,6 +6,11 @@
   region.
 - interrupts: The EHCI interrupt
 
+Optional properties:
+- clocks: reference to the clock
+- phys: reference to the USB PHY
+- phy-names: name of the USB PHY, should be "usb"
+
 Example:
 
 	ehci@50000 {