From: Viresh Kumar Date: Wed, 23 Dec 2015 11:29:14 +0000 (+0530) Subject: clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped() X-Git-Tag: v4.14-rc1~3670^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=07f101d33def572c7018626735475f88dabecebf;p=platform%2Fkernel%2Flinux-rpi.git clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped() set_state_oneshot_stopped() is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes. This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by: commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state"). Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano --- diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index ff44082..be09bc0 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -313,6 +313,7 @@ static struct clock_event_device mct_comp_device = { .set_state_periodic = mct_set_state_periodic, .set_state_shutdown = mct_set_state_shutdown, .set_state_oneshot = mct_set_state_shutdown, + .set_state_oneshot_stopped = mct_set_state_shutdown, .tick_resume = mct_set_state_shutdown, }; @@ -452,6 +453,7 @@ static int exynos4_local_timer_setup(struct mct_clock_event_device *mevt) evt->set_state_periodic = set_state_periodic; evt->set_state_shutdown = set_state_shutdown; evt->set_state_oneshot = set_state_shutdown; + evt->set_state_oneshot_stopped = set_state_shutdown; evt->tick_resume = set_state_shutdown; evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; evt->rating = 450;