diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index e4d3aecc4ed2c0fd61b1c68a93f20a24b808bd8c..677f81d9dcd529f92b6cf856464ec6595ef00509 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -428,6 +428,7 @@
 
 			pwm4: pwm@53fc8000 {
 				compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
+				#pwm-cells = <2>;
 				reg = <0x53fc8000 0x4000>;
 				clocks = <&clks 108>, <&clks 52>;
 				clock-names = "ipg", "per";