Document device tree binding information as required by
the ZYNQ USB controller.
Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xxxxxxxxxx>[...]
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
new file mode 100644
index 0000000..54bb3b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-zynq.txt
@@ -0,0 +1,23 @@
+Xilinx Zynq usb controller based on synopsys usb IP(v2.20a)
+
+Required properties:
+- compatible: should contain "xlnx,zynq-usb-2.20a"
+- clocks: clock provider specifier
+- reg: offset and length of the register set in the memory map
+- interrupt-parent: the phandle for the interrupt controller that services
+ interrupts for this device.