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diff --git a/Documentation/devicetree/bindings/power/reset/gemini-poweroff.txt b/Documentation/devicetree/bindings/power/reset/gemini-poweroff.txt
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+* Device-Tree bindings for Cortina Systems Gemini Poweroff
+
+This is a special IP block in the Cortina Gemini SoC that only
+deals with different ways to power the system down.
+
+Required properties:
+- compatible: should be "cortina,gemini-power-controller"
+- reg: should contain the physical memory base and size
+- interrupts: should contain the power management interrupt
+
+Example:
+
+power-controller@4b000000 {
+	compatible = "cortina,gemini-power-controller";
+	reg = <0x4b000000 0x100>;
+	interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+};