diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index 805b0fd70f53..8e48090e4fdc 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -138,9 +138,6 @@ cmt1: timer@e6130000 {
 		clocks = <&mstp3_clks R8A73A4_CLK_CMT1>;
 		clock-names = "fck";
 		power-domains = <&pd_c5>;
-
-		renesas,channels-mask = <0xff>;
-
 		status = "disabled";
 	};