[PATCH] irqchip: armada: Fix chained per-cpu interrupts

Maxime Ripard maxime.ripard at free-electrons.com
Thu Feb 26 03:11:59 PST 2015


On Thu, Feb 26, 2015 at 11:52:52AM +0100, Gregory CLEMENT wrote:
> >> The following function is called as soon as the MPIC is used as a secondary
> >> interrupt controller. So it will be the case for the Armada 375 and Armada 39x too. It
> >> also seems to not be related to be used in an SoC or an other, so I think that the
> >> function name is misleading. What about just using mpic_secondary_init and
> >> mpic_cpu_notifier ?
> >>
> >> I know we prefixed the mpic function with armada_370_xp or armada_xp, but looking
> >> back, it was a mistake.
> > 
> > I don't know, that code needs to be run only in the cases where the
> > MPIC is a secondary interrupt controller, which rules out the armada
> > 370/XP.
> > 
> > I was trying to make such a distinction, but indeed the wording is
> > quite poor.
> > 
> > Do you have some suggestions?
> 
> Yes using  mpic_secondary_init and  mpic_cpu_notifier, because what is important
> is the fact that the MPIC is used as a secondary interrupt controller.

The thing is, the armada xp notifier is called
armada_xp_mpic_secondary_init, with in this case secondary meaning
secondary CPU. Won't that be really confusing to have another callback
called mpic_secondary_init, what would only be called on !armada
370/XP, and with secondary meaning secondary interrupt controller?

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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