Default to a interrupt router that returns an invalid interrupt. Otherwise, busses that implement the pcib interface that forget to implement pcib_route_interrupt would return EIO, which the caller interprets as 'use interrupt 6'.  This is likely the cause of much of the grief that we had when I enabled power modes for the cardbus bridge, since the card needed to reroute the interrupt to it and it was getting 6 which was d by the pccbb sanity checks.
Default to a interrupt router that returns an invalid interrupt.
Otherwise, busses that implement the pcib interface that forget to
implement pcib_route_interrupt would return EIO, which the caller
interprets as 'use interrupt 6'.  This is likely the cause of much of
the grief that we had when I enabled power modes for the cardbus
bridge, since the card needed to reroute the interrupt to it and it
was getting 6 which was d by the pccbb sanity checks.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase