dt-bindings: usb: mtu3: remove optional pinctrls

Remove optional pinctrls due to using FORCE/RG_IDDIG to implement
manual switch function.

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 49c982bb5bfcaf58dbfb7a14cf916e56c82ce17b..b2271d8e6b50f9eb15a8b10967ce5206ec3874fc 100644 (file)
--- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
@@ -30,9 +30,10 @@ Optional properties:
        when supports dual-role mode.
  - vbus-supply : reference to the VBUS regulator, needed when supports
        dual-role mode.
- - pinctl-names : a pinctrl state named "default" must be defined,
-       "id_float" and "id_ground" are optinal which depends on
-       "mediatek,enable-manual-drd"
+ - pinctrl-names : a pinctrl state named "default" is optional, and need be
+       defined if auto drd switch is enabled, that means the property dr_mode
+       is set as "otg", and meanwhile the property "mediatek,enable-manual-drd"
+       is not set.
  - pinctrl-0 : pin control group
        See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt