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usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201

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commit da99706689 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>
This commit is contained in:
Daniel Thompson
2017-12-21 15:06:15 +02:00
committed by Greg Kroah-Hartman
parent 0ceb7a6639
commit 46e9398c96
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/host/xhci-pci.c
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@ -184,6 +184,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_TRUST_TX_LENGTH; xhci->quirks |= XHCI_TRUST_TX_LENGTH;
xhci->quirks |= XHCI_BROKEN_STREAMS; 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 && if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
pdev->device == 0x0015) pdev->device == 0x0015)
xhci->quirks |= XHCI_RESET_ON_RESUME; xhci->quirks |= XHCI_RESET_ON_RESUME;