diff --git a/arch/arm64/boot/dts/rockchip/rk3328-box-liantong.dtsi b/arch/arm64/boot/dts/rockchip/rk3328-box-liantong.dtsi
index 119663bdbeef..8d3feef1f63b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-box-liantong.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328-box-liantong.dtsi
@@ -495,6 +495,12 @@
 &rockchip_suspend {
 	status = "okay";
 	rockchip,virtual-poweroff = <1>;
+	rockchip,sleep-mode-config = <
+		(0
+		|RKPM_SLP_CTR_VOL_PWM0
+		|RKPM_SLP_CTR_VOL_PWM1
+		)
+	>;
 };
 
 &uart0 {