dt-bindings: usb: mtu3: add a optional property to disable u3ports

Add a new optional property to disable u3ports

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
index 49f5476..7c611d1 100644 (file)
--- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
@@ -44,6 +44,8 @@ Optional properties:
  - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode
  - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
        control register, it depends on "mediatek,enable-wakeup".
+ - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
+       bit1 for u3port1, ... etc;
 
 Sub-nodes:
 The xhci should be added as subnode to mtu3 as shown in the following example