Benjamin Herrenschmidt wrote: > No, interrupt maps are useful in devices with no children in some corner > cases. Remember that a map doesnt need to use the address part of the > source specifier, thus it can be used to do a pure domain->domain > conversion of the irq numbers, what sort of thing. The map has the added > advantage that today, it's the only mechanism that allows you to specify > different interrupt-parents through the same nexus, which is useful for > 4xx.
OK... but if you're doing a pure IRQ number conversion, the only useful #address-cells would be zero, which makes it a reasonable default IMHO (unlike the arbitrary 2 for regular traversal). -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
