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authorDaniel Thompson <daniel.thompson@linaro.org>2017-12-21 15:06:15 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-27 15:24:27 +0100
commitda99706689481717998d1d48edd389f339eea979 (patch)
treee3d88911f01d51c1eb420abeae33176367871e17 /drivers/usb/host
parentdde634057da71a3505d7a6c0b77bb24ded6728c8 (diff)
downloadlinux-da99706689481717998d1d48edd389f339eea979.tar.bz2
usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
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). Cc: <stable@vger.kernel.org> 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>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/xhci-pci.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 7ef1274ef7f7..1aad89b8aba0 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -178,6 +178,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
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)