diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-01-17 15:38:12 -0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-01-22 13:33:48 -0800 |
| commit | 1aa9578c1a9450fb21501c4f549f5b1edb557e6d (patch) | |
| tree | 5f2a5b8eefd074b407e65ee1740e53489dfafb01 /drivers/usb | |
| parent | 2fc5a7dace3c43e62402ab4e8800a8f1834ffe2a (diff) | |
| download | op-kernel-dev-1aa9578c1a9450fb21501c4f549f5b1edb557e6d.zip op-kernel-dev-1aa9578c1a9450fb21501c4f549f5b1edb557e6d.tar.gz | |
xhci: Fix resume issues on Renesas chips in Samsung laptops
Don Zickus <dzickus@redhat.com> writes:
Some co-workers of mine bought Samsung laptops that had mostly usb3 ports.
Those ports did not resume correctly (the driver would timeout communicating
and fail). This led to frustration as suspend/resume is a common use for
laptops.
Poking around, I applied the reset on resume quirk to this chipset and the
resume started working. Reloading the xhci_hcd module had been the temporary
workaround.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Don Zickus <dzickus@redhat.com>
Tested-by: Prarit Bhargava <prarit@redhat.com>
Cc: stable # 2.6.37
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 3c898c1..04f986d 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -142,6 +142,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) "QUIRK: Resetting on resume"); xhci->quirks |= XHCI_TRUST_TX_LENGTH; } + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && + pdev->device == 0x0015 && + pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG && + pdev->subsystem_device == 0xc0cd) + xhci->quirks |= XHCI_RESET_ON_RESUME; if (pdev->vendor == PCI_VENDOR_ID_VIA) xhci->quirks |= XHCI_RESET_ON_RESUME; } |
