diff --git a/arch/arm/boot/dts/rk3288-p977.dts b/arch/arm/boot/dts/rk3288-p977.dts
index eb67aeb63ad7..a1841194991d 100755
--- a/arch/arm/boot/dts/rk3288-p977.dts
+++ b/arch/arm/boot/dts/rk3288-p977.dts
@@ -572,6 +572,7 @@
 		SYS_STATUS_VIDEO	300000
 		SYS_STATUS_DUALVIEW	500000
 		>;
+	auto_freq=<1>;
 	status="okay";
 };