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-rw-r--r--Documentation/devicetree/bindings/clock/sun9i-usb.txt24
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diff --git a/Documentation/devicetree/bindings/clock/sun9i-usb.txt b/Documentation/devicetree/bindings/clock/sun9i-usb.txt
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+Allwinner A80 USB Clock Control Binding
+---------------------------------------
+
+Required properties :
+- compatible: must contain one of the following compatibles:
+ - "allwinner,sun9i-a80-usb-clocks"
+
+- reg: Must contain the registers base address and length
+- clocks: phandle to the clocks feeding the USB subsystem. Two are needed:
+ - "bus": the bus clock for the whole USB subsystem
+ - "hosc": the high frequency oscillator (usually at 24MHz)
+- clock-names: Must contain the clock names described just above
+- #clock-cells : must contain 1
+- #reset-cells : must contain 1
+
+Example:
+usb_clocks: clock@a08000 {
+ compatible = "allwinner,sun9i-a80-usb-clks";
+ reg = <0x00a08000 0x8>;
+ clocks = <&ccu CLK_BUS_USB>, <&osc24M>;
+ clock-names = "bus", "hosc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+};