| Message ID | 20230420093603.3344-1-WeitaoWang-oc@zhaoxin.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | xhci:fix issue with resume from system Sx state in zhaoxin platform | expand |
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6db07ca419c3..b0f0ed088f81 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -334,6 +334,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4)) xhci->quirks |= XHCI_NO_SOFT_RETRY; + if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN && pdev->device == 0x9202) + xhci->quirks |= XHCI_RESET_ON_RESUME; + /* xHC spec requires PCI devices to support D3hot and D3cold */ if (xhci->hci_version >= 0x120) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
On Zhaoxin ZX-100 project, xHCI can't work normally after resume from system Sx state. To fix this issue, when resume from system Sx state, reinitialize xHCI instead of restore. Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com> --- drivers/usb/host/xhci-pci.c | 3 +++ 1 file changed, 3 insertions(+)