208-usb2_fix.patch 491 B

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  1. --- a/drivers/usb/host/ehci-q.c
  2. +++ b/drivers/usb/host/ehci-q.c
  3. @@ -782,6 +782,11 @@ static void qh_link_async (struct ehci_h
  4. if (!(cmd & CMD_ASE)) {
  5. /* in case a clear of CMD_ASE didn't take yet */
  6. (void) handshake (&ehci->regs->status, STS_ASS, 0, 150);
  7. +
  8. + /* force async head to be valid */
  9. + writel ((u32)ehci->async->qh_dma,
  10. + &ehci->regs->async_next);
  11. +
  12. cmd |= CMD_ASE | CMD_RUN;
  13. writel (cmd, &ehci->regs->command);
  14. ehci->hcd.state = USB_STATE_RUNNING;