Am Mittwoch, 23. November 2011, 00:06:40 schrieb Sarah Sharp:
Hi,
> The CMD_CSS timeout means that the xHCI host controller failed to save
> state for suspend within 1000 ms. The host controller shouldn't be
> suspended if it can't save state. Perhaps you can increase the delay in
> drivers/usb/host/xhci.c xhci_suspend():
>
> /* step 4: set CSS flag */
> command = xhci_readl(xhci, &xhci->op_regs->command);
> command |= CMD_CSS;
> xhci_writel(xhci, command, &xhci->op_regs->command);
> if (handshake(xhci, &xhci->op_regs->status, STS_SAVE, 0, 10*100)) {
> xhci_warn(xhci, "WARN: xHC CMD_CSS timeout\n");
> spin_unlock_irq(&xhci->lock);
> return -ETIMEDOUT;
> }
>
> Change 10*100 to, say, 5000. If it works, let me know, and we'll add a
> quirk for that chipset. If it's a prototype, you might want to contact
> a TI rep and see if the host can actually handle xHCI suspend.
Unfortunately, this hasn't worked. I'll try contact TI.
Thanks
Oliver
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