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    SubjectRe: [PATCH 5/6] usb: add support for STA2X11 host driver
    On Fri, 6 Jan 2012, Alessandro Rubini wrote:

    > Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
    > Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
    > Cc: Alan Cox <alan@linux.intel.com>
    > ---
    > drivers/usb/host/ehci-pci.c | 6 ++++++
    > drivers/usb/host/ohci-pci.c | 4 ++++
    > 2 files changed, 10 insertions(+), 0 deletions(-)
    >
    > diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
    > index f4b627d..01bb7241d 100644
    > --- a/drivers/usb/host/ehci-pci.c
    > +++ b/drivers/usb/host/ehci-pci.c
    > @@ -276,6 +276,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
    >
    > /* Serial Bus Release Number is at PCI 0x60 offset */
    > pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
    > + if (pdev->vendor == PCI_VENDOR_ID_STMICRO
    > + && pdev->device == PCI_DEVICE_ID_STMICRO_USB_HOST)
    > + ehci->sbrn = 0x20; /* ConneXT has no sbrn register */
    >
    > /* Keep this around for a while just in case some EHCI
    > * implementation uses legacy PCI PM support. This test
    > @@ -526,6 +529,9 @@ static const struct pci_device_id pci_ids [] = { {
    > /* handle any USB 2.0 EHCI controller */
    > PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0),
    > .driver_data = (unsigned long) &ehci_pci_hc_driver,
    > + }, {
    > + PCI_VDEVICE(STMICRO, PCI_DEVICE_ID_STMICRO_USB_HOST),
    > + .driver_data = (unsigned long) &ehci_pci_hc_driver,
    > },
    > { /* end: all zeroes */ }
    > };
    > diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
    > index 6109810..1843bb6 100644
    > --- a/drivers/usb/host/ohci-pci.c
    > +++ b/drivers/usb/host/ohci-pci.c
    > @@ -397,6 +397,10 @@ static const struct pci_device_id pci_ids [] = { {
    > /* handle any USB OHCI controller */
    > PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_OHCI, ~0),
    > .driver_data = (unsigned long) &ohci_pci_hc_driver,
    > + }, {
    > + /* The device in the ConneXT I/O hub has no class reg */
    > + PCI_VDEVICE(STMICRO, PCI_DEVICE_ID_STMICRO_USB_OHCI),
    > + .driver_data = (unsigned long) &ohci_pci_hc_driver,
    > }, { /* end: all zeroes */ }
    > };
    > MODULE_DEVICE_TABLE (pci, pci_ids);

    Acked-by: Alan Stern <stern@rowland.harvard.edu>

    Why doesn't the ConneXT implement the required PCI registers?

    Alan Stern



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