[PATCH 29/35] arm: omap: intc: switch over to linear irq domain
From: Tero Kristo <hidden>
Date: 2014-08-01 12:25:43
Also in:
linux-devicetree, linux-omap, lkml
On 07/31/2014 04:49 PM, Felipe Balbi wrote:
Hi, On Thu, Jul 31, 2014 at 10:57:09AM +0300, Tero Kristo wrote:quoted
On 07/31/2014 09:28 AM, Tony Lindgren wrote:quoted
* Felipe Balbi [off-list ref] [140730 09:23]:quoted
Hi, On Wed, Jul 30, 2014 at 10:45:41AM -0500, Nishanth Menon wrote:quoted
On Wed, Jul 30, 2014 at 9:40 AM, Felipe Balbi [off-list ref] wrote:quoted
HI, On Tue, Jul 29, 2014 at 11:04:21PM -0700, Tony Lindgren wrote:quoted
* Felipe Balbi [off-list ref] [140729 09:36]:quoted
Hi, On Tue, Jul 29, 2014 at 10:40:57AM -0500, Felipe Balbi wrote:quoted
On Tue, Jul 29, 2014 at 08:20:52AM -0700, Tony Lindgren wrote:quoted
* Felipe Balbi [off-list ref] [140729 07:18]:quoted
Hi, On Tue, Jul 29, 2014 at 05:14:25AM -0700, Tony Lindgren wrote:quoted
* Felipe Balbi [off-list ref] [140728 14:19]:quoted
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 issueslol. 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.quoted
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.quoted
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?Well, this set seems to break PM. suspend-resume on omap3-beagle just hangs after this set is applied. Works fine without it with 3.16-rc5 tag.did you apply the quick little hack to prm3xxx.c ? prcm IRQ is hardcoded to 11, once we switch to a linear irq domain, irq_base may change.
Yea, with that hack it works. However, you should make that into a proper patch and add it to this series, otherwise you will be causing regressions. Just renaming that tmp into something meaningful for now should be enough for me at least. -Tero