diff --git a/arch/arm/boot/dts/rk3506g-demo-display-control.dts b/arch/arm/boot/dts/rk3506g-demo-display-control.dts
index ec9438ffc3f8..1688896903ce 100644
--- a/arch/arm/boot/dts/rk3506g-demo-display-control.dts
+++ b/arch/arm/boot/dts/rk3506g-demo-display-control.dts
@@ -591,6 +591,7 @@
 
 &sai1 {
 	status = "okay";
+	rockchip,mclk-no-set;
 	pinctrl-names = "default";
 	pinctrl-0 = <&rm_io9_sai1_sclk
 		     &rm_io10_sai1_lrck
@@ -600,6 +601,7 @@
 
 &sai4 {
 	status = "okay";
+	rockchip,mclk-no-set;
 };
 
 &saradc {