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xHCI: reset-on-resume quirk for NEC uPD720200

Julian Sikorski reports NEC uPD720200 does not work stable after suspend
and resume. Re-initialize the host in xhci_resume().

This should be backported to stable kernels as old as 2.6.37.  The
kernel will need to include
commit c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9
"xhci: Add reset on resume quirk for asrock p67 host"
for this patch to work.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Andiry Xu 13 years ago
parent
commit
df711fc996
1 changed files with 6 additions and 1 deletions
  1. 6 1
      drivers/usb/host/xhci-pci.c

+ 6 - 1
drivers/usb/host/xhci-pci.c

@@ -33,6 +33,8 @@
 #define PCI_VENDOR_ID_ETRON		0x1b6f
 #define PCI_DEVICE_ID_ASROCK_P67	0x7023
 
+#define PCI_DEVICE_ID_NEC_uPD720200	0x0194
+
 static const char hcd_name[] = "xhci_hcd";
 
 /* called after powerup, by probe or system-pm "wakeup" */
@@ -74,8 +76,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 				pdev->revision);
 	}
 
-	if (pdev->vendor == PCI_VENDOR_ID_NEC)
+	if (pdev->vendor == PCI_VENDOR_ID_NEC) {
 		xhci->quirks |= XHCI_NEC_HOST;
+		if (pdev->device == PCI_DEVICE_ID_NEC_uPD720200)
+			xhci->quirks |= XHCI_RESET_ON_RESUME;
+	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_AMD && xhci->hci_version == 0x96)
 		xhci->quirks |= XHCI_AMD_0x96_HOST;