On Thursday 30 May 2013, Grant Likely wrote:
> On Thu, May 30, 2013 at 8:52 AM, Arnd Bergmann <[email protected]> wrote:
> >
> > Since a platform device only has one "interrupt-parent", as soon as
> > one of the interrupts can get mapped, I would expect that the controller
> > is present, and we don't need to defer the probing any more.
>
> If it goes through an interrupt map node then it may only be able to
> resolve a subset.
Right, so we clearly need it. I also though of a second case, which
is that the xlate() function might itself return -EPROBE_DEFER in
the case that the irqchip driver is registered but e.g. not the
parent of a cascaded irqchip.
Arnd
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