From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Horman Date: Wed, 03 Apr 2013 07:46:05 +0000 Subject: Re: [PATCH v3 1/2] irqchip: intc-irqpin: Add support for shared interrupt lines Message-Id: <20130403074604.GC30989@verge.net.au> List-Id: References: <1364296699-20919-1-git-send-email-hechtb+renesas@gmail.com> <20130327045942.GH25431@verge.net.au> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: 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. > 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.