usb: Add Device Tree support to XHCI Platform driver

Add Device Tree match table to xhci-plat.c. Add DT bindings document.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
new file mode 100644
index 000000000000..5752df0e17a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -0,0 +1,14 @@
+USB xHCI controllers
+
+Required properties:
+  - compatible: should be "xhci-platform".
+  - reg: should contain address and length of the standard XHCI
+    register set for the device.
+  - interrupts: one XHCI interrupt should be described here.
+
+Example:
+        usb@f0931000 {
+                compatible = "xhci-platform";
+                reg = <0xf0931000 0x8c8>;
+                interrupts = <0x0 0x4e 0x0>;
+        };