[PATCH v3 1/2] irqchip: intc-irqpin: Add support for shared interrupt lines

[Bastian Hecht]

Hi Simon,

ok I've sent out a patch series with the reference DT code. I've had
to adapt a couple of things and the device list is rather short. How
long do I have to augment it a bit before the merge window closes?

Thanks,

 Bastian


2013/4/3 Simon Horman <horms at verge.net.au>:
> On Wed, Mar 27, 2013 at 02:50:05PM +0100, Bastian Hecht wrote:
>> Hi Simon,
>>
>> 2013/3/27 Simon Horman <horms at verge.net.au>:
>> > On Tue, Mar 26, 2013 at 12:18:18PM +0100, Bastian Hecht wrote:
>> >> On some hardware we don't have a 1-1 mapping from the external
>> >> interrupts coming from INTC to the GIC SPI pins. We can however
>> >> share lines to demux incoming IRQs on these SoCs.
>> >>
>> >> This patch enables the intc_irqpin driver to detect requests for shared
>> >> interrupt lines and demuxes them properly by querying the INTC INTREQx0A
>> >> registers.
>> >>
>> >> If you need multiple shared intc_irqpin device instances, be sure to mask
>> >> out all interrupts on the INTC that share the one line before you start
>> >> to register them. Else you run into IRQ floods that would be caused by
>> >> interrupts for which no handler has been set up yet when the first
>> >> intc_irqpin device is registered.
>> >>
>> >> Signed-off-by: Bastian Hecht <hechtb+renesas at gmail.com>
>> >> Acked-by: Magnus Damm <damm at opensource.se>
>> >
>> > Thanks, I will see about queuing up these changes for v3.10.
>> >
>> >
>> > I believe that with these changes it should be possible to rebase/rework
>> > armadillo800eva-reference so that it no longer uses the unmerged INTC
>> > DT bindings. Would it be possible for you to see about making a fresh
>> > version of armadillo800eva-reference that is based on the next branch
>> > in the Renesas tree plus this series of two patches?
>>
>> yes ok, I'll prepare a new armadillo reference version. The patches
>> were based on all+next, but I'll post a v4 rebased on next.
>> I'll post a separate patch series for the reference code if you don't
>> mind, as this might take a few days to be done.
>
> Hi Bastian,
>
> gentle nudge with regards to a fresh armadillo-reference.