Commit-ID: ac34ad27fc160b5bd31c731cdaaf6e1d1890ccb2 Gitweb: http://git.kernel.org/tip/ac34ad27fc160b5bd31c731cdaaf6e1d1890ccb2 Author: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> AuthorDate: Fri, 16 Jan 2015 10:05:51 +0100 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Wed, 27 May 2015 01:03:38 +0200 clockevents: Do not suspend/resume if unused There is no point in calling suspend/resume for unused clockevents as they are already stopped and disabled. This is really important for AT91 as the hardware is a trainwreck and takes ages to synchronize. Reported-by: Sylvain Rochet <sylvain.rochet@xxxxxxxxxxxx> Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> Cc: Nicolas Ferre <nicolas.ferre@xxxxxxxxx> Cc: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/1421399151-26800-1-git-send-email-alexandre.belloni@xxxxxxxxxxxxxxxxxx Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- kernel/time/clockevents.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 4922f1b..2a5c369 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -638,7 +638,7 @@ void clockevents_suspend(void) struct clock_event_device *dev; list_for_each_entry_reverse(dev, &clockevent_devices, list) - if (dev->suspend) + if (dev->suspend && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->suspend(dev); } @@ -650,7 +650,7 @@ void clockevents_resume(void) struct clock_event_device *dev; list_for_each_entry(dev, &clockevent_devices, list) - if (dev->resume) + if (dev->resume && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->resume(dev); } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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