From mboxrd@z Thu Jan 1 00:00:00 1970 From: horms@verge.net.au (Simon Horman) Date: Fri, 5 Apr 2013 09:36:14 +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> <20130403074604.GC30989@verge.net.au> Message-ID: <20130405003614.GD29203@verge.net.au> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Apr 04, 2013 at 03:47:34PM +0200, Bastian Hecht wrote: > 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? The merge window is more or less closed. So I think we will have to aim for v3.11. But I don't think that should affect the way you write the code, please just base it on the latest renesas-next tag. > Thanks, > > Bastian > > > 2013/4/3 Simon Horman : > > 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. > >> 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. > -- > To unsubscribe from this list: send the line "unsubscribe linux-sh" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >