LoongArch inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6T7XW
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EJ188 has similar problems as the upstream commit commit a4a251f8c235 ("usb: xhci: do not perform Soft Retry for some xHCI hosts") so we add XHCI_NO_SOFT_RETRY quirk for it.
Signed-off-by: Hongchen Zhang zhanghongchen@loongson.cn --- drivers/usb/host/xhci-pci.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 79b3691f373f..835a704dacc8 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -36,6 +36,7 @@
#define PCI_VENDOR_ID_ETRON 0x1b6f #define PCI_DEVICE_ID_EJ168 0x7023 +#define PCI_DEVICE_ID_EJ188 0x7052
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 @@ -468,6 +469,11 @@ 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_ETRON && + pdev->device == PCI_DEVICE_ID_EJ188) + xhci->quirks |= XHCI_NO_SOFT_RETRY; + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && pdev->device == 0x0014) { xhci->quirks |= XHCI_TRUST_TX_LENGTH;