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diff --git a/Documentation/devicetree/bindings/gpio/gpio-74x164.txt b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
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+++ b/Documentation/devicetree/bindings/gpio/gpio-74x164.txt
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+* Generic 8-bits shift register GPIO driver
+
+Required properties:
+- compatible : Should be "fairchild,74hc595"
+- reg : chip select number
+- 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
+- registers-number: Number of daisy-chained shift registers
+
+Example:
+
+gpio5: gpio5@0 {
+        compatible = "fairchild,74hc595";
+        reg = <0>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        registers-number = <4>;
+        spi-max-frequency = <100000>;
+};