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: <[email protected]> Signed-off-by: Daniel Thompson <[email protected]> Acked-by: Ard Biesheuvel <[email protected]> Signed-off-by: Mathias Nyman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
dabrace · Dec 27, 2017 · da99706 · da99706
1 parent dde6340
commit da99706
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
@@ -177,6 +177,9 @@ 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;