diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index d50d25b..ba27b95 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -250,6 +250,14 @@
 		status = "disabled";
 	};
 
+	fan: pwm-fan {
+		compatible = "pwm-fan";
+		/* cooling level (0, 1, 2) : (0% duty, 50% duty, 100% duty) */
+		cooling-levels = <0 128 255>;
+		#cooling-cells = <2>;
+		status = "disabled";
+	};
+
 	uart0: serial@11002000 {
 		compatible = "mediatek,mt7986-uart",
 			     "mediatek,mt6577-uart";
@@ -304,6 +312,45 @@
 			polling-delay-passive = <1000>;
 			polling-delay = <1000>;
 			thermal-sensors = <&thermal 0>;
+			trips {
+				cpu_trip_hot: hot {
+					temperature = <60000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+
+				cpu_trip_active: active {
+					temperature = <40000>;
+					hysteresis = <2000>;
+					type = "active";
+				};
+
+				cpu_trip_passive: passive {
+					temperature = <20000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+			};
+			cooling-maps {
+				cpu-hot {
+					/* hot: set fan to cooling level 2 */
+					cooling-device = <&fan 2 2>;
+					trip = <&cpu_trip_hot>;
+				};
+
+				cpu-active {
+					/* active: set fan to cooling level 1 */
+					cooling-device = <&fan 1 1>;
+					trip = <&cpu_trip_active>;
+				};
+
+				cpu-passive {
+					/* passive: set fan to cooling level 0 */
+					cooling-device = <&fan 0 0>;
+					trip = <&cpu_trip_passive>;
+				};
+			};
+
 		};
 	};