From: Daniel Thompson Date: Thu, 21 Dec 2017 13:06:15 +0000 (+0200) Subject: usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 X-Git-Tag: v4.9.74~9 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=09d3e69305b32a43de75d36430f9856df8055022;p=platform%2Fkernel%2Flinux-amlogic.git usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 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 Acked-by: Ard Biesheuvel Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index c87ef38e7416..f6782a347cde 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -189,6 +189,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_TRUST_TX_LENGTH; 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;