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diff --git a/Documentation/devicetree/bindings/mfd/atmel-gpbr.txt b/Documentation/devicetree/bindings/mfd/atmel-gpbr.txt
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+* Device tree bindings for Atmel GPBR (General Purpose Backup Registers)
+
+The GPBR are a set of battery-backed registers.
+
+Required properties:
+- compatible:           "atmel,at91sam9260-gpbr", "syscon"
+- reg:                  contains offset/length value of the GPBR memory
+                        region.
+
+Example:
+
+gpbr: gpbr@fffffd50 {
+        compatible = "atmel,at91sam9260-gpbr", "syscon";
+        reg = <0xfffffd50 0x10>;
+};