diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
index 6540ca56be5edac956abf45bb87392ea169b584e..25a50020ef4cf8e8335c95a920a4e289d6da5564 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
@@ -26,9 +26,13 @@ Optional properties:
 - interrupt-controller:
     Specifies that the node is an interrupt controller
 
-- pinmux:
-    Specifies the phandle to the IOMUX device, where pins can be individually
-muxed to GPIO
+- gpio-ranges:
+    Specifies the mapping between gpio controller and pin-controllers pins.
+    This requires 4 fields in cells defined as -
+    1. Phandle of pin-controller.
+    2. GPIO base pin offset.
+    3  Pin-control base pin offset.
+    4. number of gpio pins which are linearly mapped from pin base.
 
 Supported generic PINCONF properties in child nodes:
 
@@ -78,6 +82,8 @@ Example:
 		gpio-controller;
 		interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-controller;
+		gpio-ranges = <&pinctrl 0 42 1>,
+				<&pinctrl 1 44 3>;
 	};
 
 	/*