dts 添加lbc2温控风扇接口

arch/arm64/boot/dts/rockchip/rk3568-lubancat-2.dtsi

@@ -272,6 +272,19 @@
 		io-channels = <&saradc 1>;
 	};
 
+	fan: pwm-fan {
+		compatible = "pwm-fan";
+		#cooling-cells = <2>;
+		pwms = <&pwm0 0 500000 0>;
+		cooling-levels = <0 100 150 200 255>;
+		rockchip,temp-trips = <
+			50000	1
+			55000	2
+			60000	3
+			65000	4
+		>;
+	};
+
 	backlight: backlight {
 		status = "okay";
 		compatible = "pwm-backlight";
@@ -353,6 +366,10 @@
 			 &i2s1m0_sdo0>;
 };
 
+&pwm0 {
+	status = "okay";
+};
+
 &pwm4 {
 	status = "okay";
 };