diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index a5ba5ace3d00..aec69d294973 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5079,11 +5079,18 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
 		hcd->has_tt = 1;
 	} else {
 		/*
-		 * Some 3.1 hosts return sbrn 0x30, use xhci supported protocol
-		 * minor revision instead of sbrn. Minor revision is a two digit
-		 * BCD containing minor and sub-minor numbers, only show minor.
+		 * Early xHCI 1.1 spec did not mention USB 3.1 capable hosts
+		 * should return 0x31 for sbrn, or that the minor revision
+		 * is a two digit BCD containig minor and sub-minor numbers.
+		 * This was later clarified in xHCI 1.2.
+		 *
+		 * Some USB 3.1 capable hosts therefore have sbrn 0x30, and
+		 * minor revision set to 0x1 instead of 0x10.
 		 */
-		minor_rev = xhci->usb3_rhub.min_rev / 0x10;
+		if (xhci->usb3_rhub.min_rev == 0x1)
+			minor_rev = 1;
+		else
+			minor_rev = xhci->usb3_rhub.min_rev / 0x10;
 
 		switch (minor_rev) {
 		case 2: