diff --git a/arch/arm64/boot/dts/rockchip/rk3399pro-npu.dtsi b/arch/arm64/boot/dts/rockchip/rk3399pro-npu.dtsi
index 0cca4767422c..5f8669e09675 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399pro-npu.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399pro-npu.dtsi
@@ -483,6 +483,7 @@
 		interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
 		power-domains = <&power RK1808_VD_NPU>;
 		operating-points-v2 = <&npu_opp_table>;
+		#cooling-cells = <2>;
 		status = "disabled";
 
 		npu_power_model: power-model {