dm: usb: xhci: Use explicit parameters for xhci_alloc_virt_device()

This function should not be delving into struct usb_device. Pass in the
parameters it needs directly.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NMarek Vasut <marex@denx.de>

drivers/usb/host/xhci-mem.c

@@ -352,12 +352,10 @@ static struct xhci_container_ctx
  * @param udev	pointer to USB deivce structure
  * @return 0 on success else -1 on failure
  */
-int xhci_alloc_virt_device(struct usb_device *udev)
+int xhci_alloc_virt_device(struct xhci_ctrl *ctrl, unsigned int slot_id)
 {
 	u64 byte_64 = 0;
-	unsigned int slot_id = udev->slot_id;
 	struct xhci_virt_device *virt_dev;
-	struct xhci_ctrl *ctrl = udev->controller;
 
 	/* Slot ID 0 is reserved */
 	if (ctrl->devs[slot_id]) {

drivers/usb/host/xhci.c

@@ -491,7 +491,7 @@ int usb_alloc_device(struct usb_device *udev)
 
 	xhci_acknowledge_event(ctrl);
 
-	ret = xhci_alloc_virt_device(udev);
+	ret = xhci_alloc_virt_device(ctrl, udev->slot_id);
 	if (ret < 0) {
 		/*
 		 * TODO: Unsuccessful Address Device command shall leave

drivers/usb/host/xhci.h

@@ -1255,7 +1255,7 @@ void xhci_flush_cache(uintptr_t addr, u32 type_len);
 void xhci_inval_cache(uintptr_t addr, u32 type_len);
 void xhci_cleanup(struct xhci_ctrl *ctrl);
 struct xhci_ring *xhci_ring_alloc(unsigned int num_segs, bool link_trbs);
-int xhci_alloc_virt_device(struct usb_device *udev);
+int xhci_alloc_virt_device(struct xhci_ctrl *ctrl, unsigned int slot_id);
 int xhci_mem_init(struct xhci_ctrl *ctrl, struct xhci_hccr *hccr,
 		  struct xhci_hcor *hcor);