From: Mathias Nyman mathias.nyman@linux.intel.com
stable inclusion from stable-v5.10.90 commit 1933fe8ce712989df8e94966e21d1752fe19c257 bugzilla: 186168 https://gitee.com/openeuler/kernel/issues/I4SHY1
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit e4844092581ceec22489b66c42edc88bc6079783 upstream.
The Fresco Logic FL1100 controller needs the TRUST_TX_LENGTH quirk like other Fresco controllers, but should not have the BROKEN_MSI quirks set.
BROKEN_MSI quirk causes issues in detecting usb drives connected to docks with this FL1100 controller. The BROKEN_MSI flag was apparently accidentally set together with the TRUST_TX_LENGTH quirk
Original patch went to stable so this should go there as well.
Fixes: ea0f69d82119 ("xhci: Enable trust tx length quirk for Fresco FL11 USB controller") Cc: stable@vger.kernel.org cc: Nikolay Martynov mar.kolya@gmail.com Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com Link: https://lore.kernel.org/r/20211221112825.54690-2-mathias.nyman@linux.intel.c... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/usb/host/xhci-pci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 832cfa259a6c..188dcfa2c7ee 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -122,7 +122,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) /* Look for vendor-specific quirks */ if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK || - pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 || pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) { if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK && pdev->revision == 0x0) { @@ -157,6 +156,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009) xhci->quirks |= XHCI_BROKEN_STREAMS;
+ if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC && + pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100) + xhci->quirks |= XHCI_TRUST_TX_LENGTH; + if (pdev->vendor == PCI_VENDOR_ID_NEC) xhci->quirks |= XHCI_NEC_HOST;