From mboxrd@z Thu Jan 1 00:00:00 1970 From: horms@verge.net.au (Simon Horman) Date: Wed, 27 Mar 2013 23:04:56 +0900 Subject: [PATCH v3 1/2] irqchip: intc-irqpin: Add support for shared interrupt lines In-Reply-To: References: <1364296699-20919-1-git-send-email-hechtb+renesas@gmail.com> <20130327045942.GH25431@verge.net.au> Message-ID: <20130327140456.GC4324@verge.net.au> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Mar 27, 2013 at 02:50:05PM +0100, Bastian Hecht wrote: > Hi Simon, > > 2013/3/27 Simon Horman : > > 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 > >> Acked-by: Magnus Damm > > > > 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. Thanks, sorry for the bother. I have just pushed a fresh next branch and taged it as renesas-next-20130327. If you quote that as your base I should be able to apply your series without a hitch. > 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. Sure, no problem.