41  * USB4 spec doesn't specify dwell range, the range of 100 ms to 500 ms
66 /* Sideband registers and their sizes as defined in the USB4 spec */
459  * @port: USB4 port through which the margining operations are run
462  * @dev: Pointer to the device that is the target (USB4 port or retimer)
842 		 * USB4 port.  in margining_lanes_write()
1601 	struct usb4_port *usb4 = port->usb4;  in margining_eye_write()  local
1614 			usb4->margining->upper_eye = false;  in margining_eye_write()
1616 			usb4->margining->upper_eye = true;  in margining_eye_write()
1628 	struct usb4_port *usb4 = port->usb4;  in margining_eye_show()  local
1632 		if (usb4->margining->upper_eye)  in margining_eye_show()
1766 	if (!port->usb4)  in margining_port_init()
1771 	port->usb4->margining = margining_alloc(port, &port->usb4->dev,  in margining_port_init()
1781 	if (!port->usb4)  in margining_port_remove()
1789 	kfree(port->usb4->margining);  in margining_port_remove()
1790 	port->usb4->margining = NULL;  in margining_port_remove()
2186 	/* Only USB4 has the additional registers */  in switch_basic_regs_show()
2438 		if (port->usb4)  in tb_switch_debugfs_init()