diff options
| author | Andiry Xu <andiry.xu@amd.com> | 2011-11-17 13:07:44 +0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-11-28 10:22:26 -0800 |
| commit | df711fc9962b9491af2b92bd0d21ecbfefe4e5fa (patch) | |
| tree | ebefb30afe3849b6fff39a9dd562481987b2d335 | |
| parent | 8746c83d538cab273d335acb2be226d096f4a5af (diff) | |
| download | linux-df711fc9962b9491af2b92bd0d21ecbfefe4e5fa.tar.gz | |
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>
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index ef98b38626fbb5..d2a7332daca417 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/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; |