From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: devicetree-discuss
<devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org>,
Ralf Baechle <ralf-6z/3iImG2C8G8FEW9MqTrA@public.gmane.org>,
Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
Subject: Re: [RFC] [PATCH 3/3] IRQ: irq domain: defer of irq ressoure resolve at platform_drv_probe
Date: Thu, 30 May 2013 15:10:33 +0200 [thread overview]
Message-ID: <201305301510.33650.arnd@arndb.de> (raw)
In-Reply-To: <CACxGe6uWYnqm5RYDDBhGQv7h8eDuA6skaR4Je18CSP4KfGzw=w@mail.gmail.com>
On Thursday 30 May 2013, Grant Likely wrote:
> On Thu, May 30, 2013 at 8:52 AM, Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org> wrote:
> >
> > Since a platform device only has one "interrupt-parent", as soon as
> > one of the interrupts can get mapped, I would expect that the controller
> > is present, and we don't need to defer the probing any more.
>
> If it goes through an interrupt map node then it may only be able to
> resolve a subset.
Right, so we clearly need it. I also though of a second case, which
is that the xlate() function might itself return -EPROBE_DEFER in
the case that the irqchip driver is registered but e.g. not the
parent of a cascaded irqchip.
Arnd
next prev parent reply other threads:[~2013-05-30 13:10 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-28 14:52 [RFC] [PATCH 0/3] of: allow to support irq domain register as platform_device for platform_device Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <20130528145219.GA30411-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2013-05-28 15:08 ` [RFC] [PATCH 1/3] of: irq: rename of_irq_count to of_irq_valid_count Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <1369753729-12997-1-git-send-email-plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>
2013-05-28 15:08 ` [RFC] [PATCH 2/3] of: add of_irq_count: Count the number of IRQs a node present Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <1369753729-12997-2-git-send-email-plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>
2013-05-29 22:33 ` Grant Likely
2013-05-30 10:25 ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-28 15:08 ` [RFC] [PATCH 3/3] IRQ: irq domain: defer of irq ressoure resolve at platform_drv_probe Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <1369753729-12997-3-git-send-email-plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>
2013-05-28 22:44 ` Rob Herring
[not found] ` <51A53363.6040004-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-05-29 11:26 ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-29 22:48 ` Grant Likely
2013-05-30 7:52 ` Arnd Bergmann
[not found] ` <201305300952.06036.arnd-r2nGTMty4D4@public.gmane.org>
2013-05-30 7:53 ` Grant Likely
2013-05-30 13:10 ` Arnd Bergmann [this message]
[not found] ` <201305301510.33650.arnd-r2nGTMty4D4@public.gmane.org>
2013-05-30 14:15 ` Grant Likely
[not found] ` <CACxGe6vewNv-4AtLeNDkzJnP50StrXtchi3GiKcd2HZG6YMvkA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-30 14:57 ` Arnd Bergmann
2013-05-30 10:24 ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-30 10:36 ` Jean-Christophe PLAGNIOL-VILLARD
[not found] ` <20130530103639.GD19834-RQcB7r2h9QmfDR2tN2SG5Ni2O/JbrIOy@public.gmane.org>
2013-05-30 10:46 ` Grant Likely
2013-06-07 13:41 ` Alexander Sverdlin
2013-06-24 9:47 ` Alexander Sverdlin
2013-05-29 22:25 ` [RFC] [PATCH 1/3] of: irq: rename of_irq_count to of_irq_valid_count Grant Likely
2013-05-30 10:28 ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-28 15:41 ` [RFC] [PATCH 0/3] of: allow to support irq domain register as platform_device for platform_device Arnd Bergmann
[not found] ` <201305281741.33951.arnd-r2nGTMty4D4@public.gmane.org>
2013-05-28 18:51 ` Jean-Christophe PLAGNIOL-VILLARD
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