diff --git a/arch/arm64/boot/dts/rockchip/rk3562-amp.dtsi b/arch/arm64/boot/dts/rockchip/rk3562-amp.dtsi
index 0968d9616850..ea4f81ed5e2c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3562-amp.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3562-amp.dtsi
@@ -54,5 +54,6 @@
 };
 
 &mailbox {
+	rockchip,txpoll-period-ms = <1>;
 	status = "okay";
 };