dt-bindings: usb: mtk-xhci: update USB wakeup properties

Add two arguments in "mediatek,syscon-wakeup" to support multi
wakeup glue layer between SSUSB and SPM, and use standard property
"wakeup-source" to replace the private "mediatek,wakeup-src"
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt

@@ -35,10 +35,14 @@ Required properties:
  - phys : a list of phandle + phy specifier pairs
 
 Optional properties:
- - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
-	mode;
- - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
-	control register, it depends on "mediatek,wakeup-src".
+ - wakeup-source : enable USB remote wakeup;
+ - mediatek,syscon-wakeup : phandle to syscon used to access the register
+	of the USB wakeup glue layer between xHCI and SPM; it depends on
+	"wakeup-source", and has two arguments:
+	- the first one : register base address of the glue layer in syscon;
+	- the second one : hardware version of the glue layer
+		- 1 : used by mt8173 etc
+		- 2 : used by mt2712 etc
  - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
 	bit1 for u3port1, ... etc;
  - vbus-supply : reference to the VBUS regulator;
@@ -65,8 +69,8 @@ usb30: usb@11270000 {
 	vusb33-supply = <&mt6397_vusb_reg>;
 	vbus-supply = <&usb_p1_vbus>;
 	usb3-lpm-capable;
-	mediatek,syscon-wakeup = <&pericfg>;
-	mediatek,wakeup-src = <1>;
+	mediatek,syscon-wakeup = <&pericfg 0x400 1>;
+	wakeup-source;
 	imod-interval-ns = <10000>;
 };