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

- From: Linus Walleij \<hidden\>
- Date: 2012-08-14 10:44:39 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2012/08/3907989
- Thread: https://ratatoskr.run/linux-arm-kernel/2012/08/3906104/t.md

```text
On Tue, Aug 14, 2012 at 11:42 AM, Arnd Bergmann [ref] wrote:
> On Tuesday 14 August 2012, Linus Walleij wrote:
>> On Thu, Aug 9, 2012 at 5:53 PM, Lee Jones [ref] wrote:
>>
>> > +int db8500_irq_get_virq(int irq);
>>
>> And I'm sceptic about this business. Why isn't this physical-to virtual
>> mapping business confined to the core MFD driver? But enlighten me.
>
> Traditionally, an MFD would add an offset to the local IRQ number
> to put the VIRQ into the IRQ resource, but this doesn't work when
> you have domains other than legacy.

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?

Yours,
Linus Walleij
```