xhci: Fix resume issue of some ZHAOXIN hosts

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.
So, Add XHCI_RESET_ON_RESUME quirk for ZX-100 to fix issue of
resuming from system Sx state.

Cc: stable@vger.kernel.org
Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Message-ID: <20230602144009.1225632-9-mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 611703f..2103c6c 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -521,6 +521,11 @@ 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) {
+               if (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;