From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH 29/35] arm: omap: intc: switch over to linear irq domain Date: Wed, 30 Jul 2014 23:28:44 -0700 Message-ID: <20140731062843.GA29045@atomide.com> References: <1406582183-696-30-git-send-email-balbi@ti.com> <20140729121425.GR29045@atomide.com> <20140729141522.GB17808@saruman.home> <20140729152052.GV29045@atomide.com> <20140729154057.GE17808@saruman.home> <20140729163345.GF17808@saruman.home> <20140730060420.GY29045@atomide.com> <20140730144059.GA7272@saruman.home> <20140730162038.GH7272@saruman.home> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20140730162038.GH7272@saruman.home> Sender: linux-kernel-owner@vger.kernel.org To: Felipe Balbi Cc: Nishanth Menon , dt list , Russell King - ARM Linux , jason@lakedaemon.net, Kevin Hilman , Linux Kernel Mailing List , Tero Kristo , Benoit Cousson , tglx@linutronix.de, Linux OMAP Mailing List , Linux ARM Kernel Mailing List List-Id: devicetree@vger.kernel.org * Felipe Balbi [140730 09:23]: > Hi, > > On Wed, Jul 30, 2014 at 10:45:41AM -0500, Nishanth Menon wrote: > > On Wed, Jul 30, 2014 at 9:40 AM, Felipe Balbi wrote: > > > HI, > > > > > > On Tue, Jul 29, 2014 at 11:04:21PM -0700, Tony Lindgren wrote: > > >> * Felipe Balbi [140729 09:36]: > > >> > Hi, > > >> > > > >> > On Tue, Jul 29, 2014 at 10:40:57AM -0500, Felipe Balbi wrote: > > >> > > On Tue, Jul 29, 2014 at 08:20:52AM -0700, Tony Lindgren wrote: > > >> > > > * Felipe Balbi [140729 07:18]: > > >> > > > > Hi, > > >> > > > > > > >> > > > > On Tue, Jul 29, 2014 at 05:14:25AM -0700, Tony Lindgren wrote: > > >> > > > > > * Felipe Balbi [140728 14:19]: > > >> > > > > > > now that we don't need to support legacy board-files, > > >> > > > > > > we can completely switch over to a linear irq domain > > >> > > > > > > and make use of irq_alloc_domain_generic_chips() to > > >> > > > > > > allocate all generic irq chips for us. > > >> > > > > > > > >> > > > > > This patch seems to somehow break off-idle for omap3 > > >> > > > > > where it no longer wakes up. > > >> > > > > > > >> > > > > Sure your bisection is correct ? This patch just switches from legacy > > >> > > > > irq domain to linear irq domain. > > >> > > > > > >> > > > Yes, I tried it a few times. Just enabling > > >> > > > retention idle hangs too with this patch. > > >> > > > > > >> > > > Maybe it's omap3_prcm_irq_setup that relies on > > >> > > > 11 + OMAP_INTC_START? There may be other such issues > > >> > > > > >> > > lol. > > >> > > > > >> > > OMAP4 has the same nonsense. > > >> > > > >> > made me think why (if) OMAP4 works with that same setup. Does wake from > > >> > OFF work with OMAP4 ? > > >> > > >> Not without similar changes, omap4+ has the same issue.. There's a RFC > > >> series from Nishant to fix some of this, and Tero is moving the PRCM > > >> into a driver. > > >> > > >> > Anyway, here's a quick little hack to check if that's the reason for the > > >> > regression: > > >> > > >> OK yeah that's along the same lines with Nishant's RFC series in thread > > >> "[RFC PATCH 0/7] ARM: OMAP4+: PRM: minor cleanups and dt support of > > >> interrupts" > > >> > > >> FYI, it did not compile, needs to include linux/of_irq.h. But yes, > > > > > > I might have sent the wrong version as I had that same build error and > > > fixed it localy. > > > > > >> it fixes the regression for me, Also now the whole series works for > > >> me :) > > > > > > good to know. > > > > > > What do you want to do now ? Wait for PRCM to become a driver ? Wait for > > > Nishanth's series to get accepted ? I guess the same thing could be done > > > for OMAP3 and AM33, then we would have a chance of having working wake > > > from idle with the new irqchip. > > > > I can repost the current series as it stands now once 17-rc1 comes out > > (without the build failure ofcourse).. if that helps to move it out of > > RFC status. > > That'd be great. It would be ever greater if you could add support for > OMAP3 on that too. Yeah sounds good to me. Tero, does that work OK for your PRCM changes? Regards, Tony