Merge 3.0-rc2 + Linus's latest into usb-linus

[pandora-kernel.git] / drivers / usb / host / xhci-mem.c

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 26caba4..0f8e1d2 100644 (file)
--- a/drivers/usb/host/xhci-mem.c
+++ b/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;
 }