[PATCH 5/8] mfd: Provide the PRCMU with its own IRQ domain

[Mark Brown]

On Mon, Aug 20, 2012 at 09:36:43AM +0100, Lee Jones wrote:
> On Tue, Aug 14, 2012 at 12:44:37PM +0200, Linus Walleij wrote:

> > Yes but I think I saw this other patch set from Lee, hitting
> > irqdomain, OF and MFD to actually fix this ... or did I get
> > it wrong?

> No, you're not wrong.

> Historically (in my patches) xb8500_irq_get_virq() was used by drivers
> to obtain a VIRQ when not using Device Tree. Now the MFD core handles
> conversion there is little requirement for it. In fact there are no
> more users for db8500_irq_get_virq() and only one user for 
> ab8500_irq_get_virq() and that's itself. I guess we can rid them and
> call irq_get_mapping() directly instead.

Oh dear.  Unfortunately whoever added this support to the MFD core did
so in such a manner that it's only supported for device tree systems
and only for devices which express the MFD cells as device tree nodes
which means that most devices can't it - db8500 has got a reasonably
unusual combination there.
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