Messages in this thread | | | Date | Sat, 25 Aug 2012 15:12:14 +0800 | Subject | Re: [PATCH 1/1] xhci: Recognize USB 3.0 devices as superspeed at powerup | From | Andiry Xu <> |
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On Thu, Aug 23, 2012 at 12:53 AM, <manoj.iyer@canonical.com> wrote: > From: Manoj Iyer <manoj.iyer@canonical.com> > > On Intel Panther Point chipset USB 3.0 devices show up as > high-speed devices on powerup, but after an s3 cycle they are > correctly recognized as SuperSpeed. At powerup switch the port > to xHCI so that USB 3.0 devices are correctly recognized. > > BugLink: http://bugs.launchpad.net/bugs/1000424 > > Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
This one looks OK to me.
Thanks, Andiry
> --- > drivers/usb/host/pci-quirks.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c > index c5e9e4a..486e812 100644 > --- a/drivers/usb/host/pci-quirks.c > +++ b/drivers/usb/host/pci-quirks.c > @@ -870,9 +870,10 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) > /* Disable any BIOS SMIs and clear all SMI events*/ > writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); > > +hc_init: > if (usb_is_intel_switchable_xhci(pdev)) > usb_enable_xhci_ports(pdev); > -hc_init: > + > op_reg_base = base + XHCI_HC_LENGTH(readl(base)); > > /* Wait for the host controller to be ready before writing any > -- > 1.7.9.5 >
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