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.
Not sure if I should restrict this further or not. Probably should be sent
to stable too.
Signed-off-by: Don Zickus <dzic...@redhat.com>
---
drivers/usb/host/xhci-pci.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 73f5208..2a21892 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -144,6 +144,8 @@ static void xhci_pci_quirks(struct device *dev, struct
xhci_hcd *xhci)
}
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
+ if (pdev->vendor == PCI_VENDOR_ID_RENESAS)
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
}
/* called during probe() after chip reset completes */
--
1.7.1
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