diff --git a/arch/arm/dts/imx8mm-kontron-n801x-s-lvds.dts b/arch/arm/dts/imx8mm-kontron-n801x-s-lvds.dts
index dd1addea708..40c14734e22 100644
--- a/arch/arm/dts/imx8mm-kontron-n801x-s-lvds.dts
+++ b/arch/arm/dts/imx8mm-kontron-n801x-s-lvds.dts
@@ -87,6 +87,7 @@
 &pwm1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_pwm1>;
+	#pwm-cells = <2>;
 	status = "okay";
 };