diff --git a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
index 978dc1c2ff1b..356fe5673be9 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi
@@ -107,6 +107,7 @@ da9062_onkey: onkey {
 
 		watchdog {
 			compatible = "dlg,da9062-watchdog";
+			dlg,use-sw-pm;
 		};
 
 		regulators {