diff --git a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
index 34417dac1cd0937292469da3b86b54f2e8cfff1c..19e61b5b066c574d8ee464a6fe91d564c1436e86 100644
--- a/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
+++ b/arch/arm/boot/dts/bcm47189-tenda-ac9.dts
@@ -26,6 +26,8 @@
 		usb {
 			label = "bcm53xx:blue:usb";
 			gpios = <&chipcommon 1 GPIO_ACTIVE_HIGH>;
+			trigger-sources = <&ohci_port1>, <&ehci_port1>;
+			linux,default-trigger = "usbport";
 		};
 
 		wps {
diff --git a/arch/arm/boot/dts/bcm53573.dtsi b/arch/arm/boot/dts/bcm53573.dtsi
index eae623f7640138abb794f52cfc2604321947308e..c698a565b8ae9e2134c36fc796e983159b686a67 100644
--- a/arch/arm/boot/dts/bcm53573.dtsi
+++ b/arch/arm/boot/dts/bcm53573.dtsi
@@ -138,10 +138,12 @@
 
 				ehci_port1: port@1 {
 					reg = <1>;
+					#trigger-source-cells = <0>;
 				};
 
 				ehci_port2: port@2 {
 					reg = <2>;
+					#trigger-source-cells = <0>;
 				};
 			};
 
@@ -158,10 +160,12 @@
 
 				ohci_port1: port@1 {
 					reg = <1>;
+					#trigger-source-cells = <0>;
 				};
 
 				ohci_port2: port@2 {
 					reg = <2>;
+					#trigger-source-cells = <0>;
 				};
 			};
 		};