diff --git a/arch/arm64/boot/dts/amlogic/mesong12a.dtsi b/arch/arm64/boot/dts/amlogic/mesong12a.dtsi
index 1d04351e5a9c..d16931a47c3e 100644
--- a/arch/arm64/boot/dts/amlogic/mesong12a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesong12a.dtsi
@@ -55,7 +55,7 @@
 			compatible = "arm,cortex-a53","arm,armv8";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
-			//cpu-idle-states = <&CPU_SLEEP_0>;
+			cpu-idle-states = <&CPU_SLEEP_0>;
 			clocks = <&clkc CLKID_CPU_CLK>,
 				<&clkc CLKID_CPU_FCLK_P>,
 				<&clkc CLKID_SYS_PLL>;
@@ -73,7 +73,7 @@
 			compatible = "arm,cortex-a53","arm,armv8";
 			reg = <0x0 0x1>;
 			enable-method = "psci";
-			//cpu-idle-states = <&CPU_SLEEP_0>;
+			cpu-idle-states = <&CPU_SLEEP_0>;
 			clocks = <&clkc CLKID_CPU_CLK>,
 				<&clkc CLKID_CPU_FCLK_P>,
 				<&clkc CLKID_SYS_PLL>;
@@ -91,7 +91,7 @@
 			compatible = "arm,cortex-a53","arm,armv8";
 			reg = <0x0 0x2>;
 			enable-method = "psci";
-			//cpu-idle-states = <&CPU_SLEEP_0>;
+			cpu-idle-states = <&CPU_SLEEP_0>;
 			clocks = <&clkc CLKID_CPU_CLK>,
 				<&clkc CLKID_CPU_FCLK_P>,
 				<&clkc CLKID_SYS_PLL>;
@@ -109,7 +109,7 @@
 			compatible = "arm,cortex-a53","arm,armv8";
 			reg = <0x0 0x3>;
 			enable-method = "psci";
-			//cpu-idle-states = <&CPU_SLEEP_0>;
+			cpu-idle-states = <&CPU_SLEEP_0>;
 			clocks = <&clkc CLKID_CPU_CLK>,
 				<&clkc CLKID_CPU_FCLK_P>,
 				<&clkc CLKID_SYS_PLL>;