diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-01-17 15:38:12 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-31 09:58:14 -0700 |
| commit | d04ff9c036a8481b8a1534b8b4b65757f3bfa53e (patch) | |
| tree | c3a34d42bcfa2815138c356e1a15da13e9588315 /drivers | |
| parent | c16d2409ed27ae4fabcf608e48725e1618e76064 (diff) | |
xhci: Fix resume issues on Renesas chips in Samsung laptops
commit 1aa9578c1a9450fb21501c4f549f5b1edb557e6d upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -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 159e3c6d92b..3581416a24d 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -113,6 +113,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci_dbg(xhci, "QUIRK: Resetting on resume\n"); 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; } |