Renesas uPD720202 USB 3.0 chip needs XHCI_TRUST_TX_LENGTH quirk workaround as
per below logs
produced when using a Diammond video capture dongle:
Aug 21 18:07:33 [kernel] handle_tx_event: 67 callbacks suppressed
Aug 21 18:07:33 [kernel] xhci_hcd 0000:01:00.0: WARN Successful completion on
short TX: needs XHCI_TRUST_TX_LENGTH quirk?
- Last output repeated 9 times -
While at it I took the opportunity to define Renesas uPD720202 device ID.
Signed-off-by: Rodrigo Severo <rodr...@fabricadeideias.com>
---
drivers/usb/host/xhci-pci.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 47390e3..52df456 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -38,6 +38,8 @@
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
+#define PCI_DEVICE_ID_RENESAS_UPD720202 0x0015
+
static const char hcd_name[] = "xhci_hcd";
/* called after powerup, by probe or system-pm "wakeup" */
@@ -143,10 +145,12 @@ static void xhci_pci_quirks(struct device *dev, struct
xhci_hcd *xhci)
xhci->quirks |= XHCI_TRUST_TX_LENGTH;
}
if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
- pdev->device == 0x0015 &&
- pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG &&
- pdev->subsystem_device == 0xc0cd)
- xhci->quirks |= XHCI_RESET_ON_RESUME;
+ pdev->device == PCI_DEVICE_ID_RENESAS_UPD720202) {
+ xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG &&
+ pdev->subsystem_device == 0xc0cd)
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+ }
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
}
--
1.8.5.5
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