Merge 3.0-rc2 into usb-linus as it's needed by some USB patches

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/xhci-mem.c

@@ -985,9 +985,19 @@ static unsigned int xhci_parse_exponent_interval(struct usb_device *udev,
 	interval = clamp_val(ep->desc.bInterval, 1, 16) - 1;
 	if (interval != ep->desc.bInterval - 1)
 		dev_warn(&udev->dev,
-			 "ep %#x - rounding interval to %d microframes\n",
+			 "ep %#x - rounding interval to %d %sframes\n",
 			 ep->desc.bEndpointAddress,
-			 1 << interval);
+			 1 << interval,
+			 udev->speed == USB_SPEED_FULL ? "" : "micro");
+
+	if (udev->speed == USB_SPEED_FULL) {
+		/*
+		 * Full speed isoc endpoints specify interval in frames,
+		 * not microframes. We are using microframes everywhere,
+		 * so adjust accordingly.
+		 */
+		interval += 3;	/* 1 frame = 2^3 uframes */
+	}
 
 	return interval;
 }