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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