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diff --git a/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
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+++ b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt
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+Cirrus Logic CLPS711X GPIO controller
+
+Required properties:
+- compatible: Should be "cirrus,ep7209-gpio"
+- reg: Physical base GPIO controller registers location and length.
+  There should be two registers, first is DATA register, the second
+  is DIRECTION.
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Should be two. The first cell is the pin number and
+  the second cell is used to specify the gpio polarity:
+    0 = active high
+    1 = active low
+
+Note: Each GPIO port should have an alias correctly numbered in "aliases"
+node.
+
+Example:
+
+aliases {
+	gpio0 = &porta;
+};
+
+porta: gpio@80000000 {
+	compatible = "cirrus,ep7312-gpio","cirrus,ep7209-gpio";
+	reg = <0x80000000 0x1>, <0x80000040 0x1>;
+	gpio-controller;
+	#gpio-cells = <2>;
+};