debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/drivers/usb/host/xhci-pci.c
..
..
@@ -327,6 +327,18 @@
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 	     pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
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 		xhci->quirks |= XHCI_NO_SOFT_RETRY;
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+	if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN) {
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+		xhci->quirks |= XHCI_ZHAOXIN_HOST;
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+
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+		if (pdev->device == 0x9202) {
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+			xhci->quirks |= XHCI_RESET_ON_RESUME;
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+			xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH;
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+		}
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+
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+		if (pdev->device == 0x9203)
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+			xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH;
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+	}
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+
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 	/* xHC spec requires PCI devices to support D3hot and D3cold */
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 	if (xhci->hci_version >= 0x120)
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 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
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@@ -451,6 +463,8 @@
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 	if (xhci->quirks & XHCI_DEFAULT_PM_RUNTIME_ALLOW)
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 		pm_runtime_allow(&dev->dev);
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+	dma_set_max_seg_size(&dev->dev, UINT_MAX);
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+
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 	return 0;
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 put_usb3_hcd: