[PATCH v3 13/21] ARM: omap: convert wakeupgen to stacked domains

Tony Lindgren tony at atomide.com
Thu Jan 15 09:57:01 PST 2015


* Marc Zyngier <marc.zyngier at arm.com> [150115 09:31]:
> On 15/01/15 17:04, Tony Lindgren wrote:
> > * Marc Zyngier <marc.zyngier at arm.com> [150115 06:53]:
> >> On Thu, Jan 15 2015 at  2:40:16 pm GMT, Nishanth Menon <nm at ti.com> wrote:
> >>> On 14:28-20150115, Marc Zyngier wrote:
> >>>> Assuming the workaround I posted earlier works, the OMAP/DRA7 part of
> >>>> this series is going to require some rework too (I need to know where
> >>>> these legacy interrupts are attached: crossbar, WUGEN, or GIC?).
> >>>>
> >>> crossbar will never work with legacy static interrupts anyways - since
> >>> there was never a static interrupt possible - I believe we had removed
> >>> all the legacy hardcoded interrupt definitions for DRA7. ideally, they
> >>> should all be dt only now.
> >>
> >> Yes, I guessed as much after looking at the DRA7XX hwmod.
> >>
> >> So only OMAP4/5 is b0rken at the moment. I can probably work around it
> >> as I did in this example patch, just by changing the compatible strings
> >> for the xlate callback. Very ugly.
> > 
> > For the -rc, it seems the wakeupen still needs a fix as based on grepping
> > for OMAP44XX_IRQ_GIC_START. Got any great ideas for that?
> 
> I think this one is fine. It computes the SPI number based on the hwirq
> coming from the GIC. That direction is completely unaffected by the
> linear domain stuff. It is only when you try to use a hardware IRQ as a
> Linux IRQ that you run into trouble.

Yes OK that makes sense.

Thanks,

Tony



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