diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
index 56938f32fa56..110c0d4681dc 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
@@ -115,6 +115,10 @@ properties:
           get vbus status. If not, it will use bvalid status bit to get vbus
           status by default.
 
+     rockchip,vbus-always-on:
+       $ref: /schemas/types.yaml#/definitions/flag
+       description: when set, indicates that the otg vbus is always powered on.
+
     required:
       - "#phy-cells"
       - interrupts
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index 46ebdb1460a3..b815282b0ca1 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -160,6 +160,7 @@ struct rockchip_usb2phy_cfg {
  * @port_id: flag for otg port or host port.
  * @suspended: phy suspended flag.
  * @vbus_attached: otg device vbus status.
+ * @vbus_always_on: otg vbus is always powered on.
  * @bvalid_irq: IRQ number assigned for vbus valid rise detection.
  * @ls_irq: IRQ number assigned for linestate detection.
  * @otg_mux_irq: IRQ number which multiplex otg-id/otg-bvalid/linestate
@@ -178,6 +179,7 @@ struct rockchip_usb2phy_port {
 	unsigned int	port_id;
 	bool		suspended;
 	bool		vbus_attached;
+	bool		vbus_always_on;
 	int		bvalid_irq;
 	int		ls_irq;
 	int		otg_mux_irq;
@@ -410,7 +412,8 @@ static int rockchip_usb2phy_init(struct phy *phy)
 
 	if (rport->port_id == USB2PHY_PORT_OTG) {
 		if (rport->mode != USB_DR_MODE_HOST &&
-		    rport->mode != USB_DR_MODE_UNKNOWN) {
+		    rport->mode != USB_DR_MODE_UNKNOWN &&
+		    !rport->vbus_always_on) {
 			/* clear bvalid status and enable bvalid detect irq */
 			ret = property_enable(rphy->grf,
 					      &rport->port_cfg->bvalid_det_clr,
@@ -505,7 +508,8 @@ static int rockchip_usb2phy_exit(struct phy *phy)
 
 	if (rport->port_id == USB2PHY_PORT_OTG &&
 	    rport->mode != USB_DR_MODE_HOST &&
-	    rport->mode != USB_DR_MODE_UNKNOWN) {
+	    rport->mode != USB_DR_MODE_UNKNOWN &&
+	    !rport->vbus_always_on) {
 		cancel_delayed_work_sync(&rport->otg_sm_work);
 		cancel_delayed_work_sync(&rport->chg_work);
 	} else if (rport->port_id == USB2PHY_PORT_HOST)
@@ -997,9 +1001,13 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
 
 	mutex_init(&rport->mutex);
 
+	rport->vbus_always_on =
+		of_property_read_bool(child_np, "rockchip,vbus-always-on");
+
 	rport->mode = of_usb_get_dr_mode_by_phy(child_np, -1);
 	if (rport->mode == USB_DR_MODE_HOST ||
-	    rport->mode == USB_DR_MODE_UNKNOWN) {
+	    rport->mode == USB_DR_MODE_UNKNOWN ||
+	    rport->vbus_always_on) {
 		ret = 0;
 		goto out;
 	}