Messages in this thread | | | Date | Tue, 21 Aug 2012 15:21:09 +0400 | From | Sergei Shtylyov <> | Subject | Re: [PATCH 1/1] xhci: Unconditionally switch ports to xHCI on powerup |
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Hello.
On 21-08-2012 8:06, manoj.iyer@canonical.com wrote:
> From: Manoj Iyer <manoj.iyer@canonical.com>
> USB 3.0 devices show up as high-speed devices on powerup, after an > s3 cycle they are correctly recognized as SuperSpeed. At powerup > unconditionally switch the port to xHCI like we do when we resume > from suspend.
> BugLink: http://bugs.launchpad.net/bugs/1000424
> Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> > --- > drivers/usb/host/xhci-pci.c | 8 ++++++++ > 1 file changed, 8 insertions(+)
> diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c > index 9bfd4ca11..5c8dbea 100644 > --- a/drivers/usb/host/xhci-pci.c > +++ b/drivers/usb/host/xhci-pci.c > @@ -48,6 +48,14 @@ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev) > if (!pci_set_mwi(pdev)) > xhci_dbg(xhci, "MWI active\n"); > > + /* > + * USB SuperSpeed ports are recognized as HighSpeed ports on powerup
Devices, not ports?
> + * unconditionally switch the ports to xHCI like we do when resume
s/resume/resuming/
> + * from suspend. > + */ > + if (usb_is_intel_switchable_xhci(pdev)) > + usb_enable_xhci_ports(pdev); > +
WBR, Sergei
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