linux-kernel - Re: [PATCH v8 1/5] PM / Runtime: Add getter for querying the IRQ safe option

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Date:	Fri, 31 Oct 2014 10:33:26 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Jonathan Corbet <corbet@....net>,
	Russell King <linux@....linux.org.uk>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Alan Stern <stern@...land.harvard.edu>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	dmaengine@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
	Michal Simek <michal.simek@...inx.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v8 1/5] PM / Runtime: Add getter for querying the IRQ safe
 option

On pią, 2014-10-31 at 10:29 +0100, Ulf Hansson wrote:
> On 31 October 2014 10:14, Krzysztof Kozlowski <k.kozlowski@...sung.com> wrote:
> > On pon, 2014-10-20 at 11:04 +0200, Krzysztof Kozlowski wrote:
> >> Add a simple getter pm_runtime_is_irq_safe() for querying whether runtime
> >> PM IRQ safe was set or not.
> >>
> >> Various bus drivers implementing runtime PM may use choose to suspend
> >> differently based on IRQ safeness status of child driver (e.g. do not
> >> unprepare the clock if IRQ safe is not set).
> >>
> >> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> >> Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
> >
> > Rafael, Len, Pavel,
> >
> > Is proposed API ok? Do you have any comments?
> >
> > I'll upload whole patchset to Russell's patch tracking system. However
> > an ack from PM maintainer is probably needed.
> 
> I would actually prefer the opposite. It's better if we can take these
> patches through Rafaels tree.
> 
> 1) I have posted patches for the amba bus, these may have merge
> conflicts with your changes.
> 2) We may start using the new runtime PM API within genpd as of now.

I don't mind and it makes sense to me.
This way I need an ack from Russell or Vinod...


Best regards,
Krzysztof


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