[PATCH] 8250_pci: Prevent Exar/RTD Boards from binding.

[greg@kroah.com (Greg KH)]

On Wed, Nov 11, 2015 at 09:49:11PM +0000, Rob Groner wrote:
> > > We all know you are busy. If you want I can try the cleanup and send
> > > it to Rob for testing.
> > 
> > Yes please, it should just require a change to the existing 8250 driver code for
> > this platform, it should not be a stand-alone driver.
> > 
> > thanks,
> > 
> > greg k-h
> 
> I'm a little confused by that, but I'm happily standing by, ready to
> test the result, or any other way I can help.
> 
> As long as our boards that use the Exar chip aren't sucked up by the
> kernel 8250 driver, then mission accomplished!

It should be sucked up by the 8250 driver, the driver they posted is
just a fork of the existing driver with a few small, odd, modifications.
the 8250 framework is _so_ flexible that I'm sure it can support this
hardware as-is, the hardware just needs to be properly described to the
driver.

The last time I did this, it took 2 days of reading the driver and
figuring it all out, and then only 16 new lines of code/tables added to
the driver to support a new device that was a bit "odd" from a normal
uart.  I expect the same thing would be needed here, but maybe more
lines of code :)

thanks,

greg k-h