Re: Problem with OF interrupt parsing code

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Datum: Tue, 02 Oct 2007 08:54:04 +1000
Von: Benjamin Herrenschmidt [off-list ref]
An: Segher Boessenkool [off-list ref]
CC: Gerhard Pircher <redacted>, linuxppc-dev@ozlabs.org
Betreff: Re: Problem with OF interrupt parsing code

It shoudn't normally happen. The reason it -does- happen in fact is that
the above node is also missing the #interrupt-cells property, which
cause the parent-lookup routine to skip it before it gets a chance to
see that there's an "interrupt-controller" property in there.

I'm not sure whether linux behaviour is a bug or not since I believe we
are clearly in undefined-land as an interrupt controller should always
have a #interrupt-cells property.

I think these properties weren't specified in the OF CHRP ISA PIC device
binding document for the PIC node, thus I may have forgotten about them
(CHRP also defines a parent interrupt controller for the PIC, right?).
But the AmigaOne is not a CHRP platform, so I'll add them to the device
tree and then I will see how it works.

Thanks!

Gerhard