--- zzzz-none-000/linux-5.15.111/drivers/usb/host/xhci.h	2023-05-11 14:00:40.000000000 +0000
+++ puma7-atom-6670-761/linux-5.15.111/drivers/usb/host/xhci.h	2024-02-07 10:23:22.000000000 +0000
@@ -1919,6 +1919,8 @@
 	/* cached usb2 extened protocol capabilites */
 	u32                     *ext_caps;
 	unsigned int            num_ext_caps;
+	/* support dual role switch per vendor extended capability */
+	void __iomem            *phy_mux_regs;
 	/* cached extended protocol port capabilities */
 	struct xhci_port_cap	*port_caps;
 	unsigned int		num_port_caps;