diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 91a3ba79e5252..efe2525b62fa1 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -513,7 +513,7 @@
 
 				mux: mux-controller {
 					compatible = "mmio-mux";
-					#mux-control-cells = <0>;
+					#mux-control-cells = <1>;
 					mux-reg-masks = <0x14 0x00000010>;
 				};