Messages in this thread | | | Date | Thu, 29 May 2014 13:16:18 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH] usb: pci-quirks: do not access OHCI_FMINTERVAL register on ULI hw |
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On Thu, 29 May 2014, Nikita Yushchenko wrote:
> >> I've checked these... all values read as 0xffffffff - which does not > >> look correct > > > > You could have the platform setup code read one of those hardware > > registers, such as FMINTERVAL. If it obtains 0xffffffff, don't > > register the OHCI controller as a platform device. > > It is not a platform_device, it is PCI device that is found via bus scan.
Yes, of course, I got it mixed up.
Well, the quirk_usb_handoff_ohci() routine could do something like this. If the FMINTERVAL value is 0xffffffff, deregister the device from the PCI bus.
Alan Stern
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