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Date: Mon, 15 Sep 2014 10:57:24 -0400 (EDT) From: Alan Stern <stern@...land.harvard.edu> To: Krzysztof Kozlowski <k.kozlowski@...sung.com> cc: Russell King <linux@....linux.org.uk>, Dan Williams <dan.j.williams@...el.com>, Vinod Koul <vinod.koul@...el.com>, <linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>, Ulf Hansson <ulf.hansson@...aro.org>, Grant Likely <grant.likely@...aro.org>, Lars-Peter Clausen <lars@...afoo.de>, Michal Simek <michal.simek@...inx.com>, <linux-pm@...r.kernel.org>, Kyungmin Park <kyungmin.park@...sung.com>, Marek Szyprowski <m.szyprowski@...sung.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> Subject: Re: [PATCH v3 1/4] PM / Runtime: Add getter for quering the IRQ safe option On Mon, 15 Sep 2014, Krzysztof Kozlowski wrote: > Add a simple getter pm_runtime_is_irq_safe() for quering 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> > --- > include/linux/pm_runtime.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h > index 367f49b9a1c9..44d74f0f182e 100644 > --- a/include/linux/pm_runtime.h > +++ b/include/linux/pm_runtime.h > @@ -128,6 +128,11 @@ static inline void pm_runtime_mark_last_busy(struct device *dev) > ACCESS_ONCE(dev->power.last_busy) = jiffies; > } > > +static inline bool pm_runtime_is_irq_safe(struct device *dev) > +{ > + return dev->power.irq_safe; > +} > + If you add something to the runtime PM API, you must update the documentation file (Documentation/power/runtime_pm.txt) correspondingly. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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