| From da99706689481717998d1d48edd389f339eea979 Mon Sep 17 00:00:00 2001 |
| From: Daniel Thompson <daniel.thompson@linaro.org> |
| Date: Thu, 21 Dec 2017 15:06:15 +0200 |
| Subject: usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 |
| |
| From: Daniel Thompson <daniel.thompson@linaro.org> |
| |
| commit da99706689481717998d1d48edd389f339eea979 upstream. |
| |
| When plugging in a USB webcam I see the following message: |
| xhci_hcd 0000:04:00.0: WARN Successful completion on short TX: needs |
| XHCI_TRUST_TX_LENGTH quirk? |
| handle_tx_event: 913 callbacks suppressed |
| |
| All is quiet again with this patch (and I've done a fair but of soak |
| testing with the camera since). |
| |
| Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> |
| Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> |
| Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/usb/host/xhci-pci.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/drivers/usb/host/xhci-pci.c |
| +++ b/drivers/usb/host/xhci-pci.c |
| @@ -185,6 +185,9 @@ static void xhci_pci_quirks(struct devic |
| xhci->quirks |= XHCI_BROKEN_STREAMS; |
| } |
| if (pdev->vendor == PCI_VENDOR_ID_RENESAS && |
| + pdev->device == 0x0014) |
| + xhci->quirks |= XHCI_TRUST_TX_LENGTH; |
| + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && |
| pdev->device == 0x0015) |
| xhci->quirks |= XHCI_RESET_ON_RESUME; |
| if (pdev->vendor == PCI_VENDOR_ID_VIA) |