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Re: [Xen-devel] [PATCH v2 13/16] xen/arm: IRQ: Store IRQ type in arch_irq_desc

On Tue, 2014-04-08 at 16:50 +0100, Julien Grall wrote:

> >>  I've just noticed we do the same thing in gic_dist_init.
> > 
> > Whatever the reason for them doing it it probably make sense to do the
> > same, otherwise we are just making pain for ourselves.
> > 
> > I'm not convinced that the exynos DT doesn't also need to be fixed
> > though.
> In any case we have to be able to boot any valid device tree for Linux
> no matter are the values.

Right. Those two statements are not contradictory though.

> It seems that Linux is ignoring NONE and doesn't update the ICFGR.

That makes sense actually: i.e. if DT says none then you have assume
that someone (e.g. the bootloader) has done the right thing already and
not touch it.

> >> If you prefer I can add a common above the function to say 0 is used
> >> when an error is occured.
> > 
> > Well, this is a more global thing than this one function really.
> I can use the same solution as serial_irq callbacks, i.e returning -1 in
> case of an error.


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