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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2015-12-23 16:59:13 +0530 |
|---|---|---|
| committer |   Daniel Lezcano <daniel.lezcano@linaro.org> | 2016-02-25 14:34:06 +0100 |
| commit | 3effa3ceea2da9f67f042a694e24ba0d8143cff8 (patch) | |
| tree | 7d1167d085aad19bd224a9758328dab7698b47ab /drivers/clocksource | |
| parent | clockevents/drivers/arm_arch_timer: Implement ->set_state_oneshot_stopped() (diff) | |
| download | linux-dev-3effa3ceea2da9f67f042a694e24ba0d8143cff8.tar.xz linux-dev-3effa3ceea2da9f67f042a694e24ba0d8143cff8.zip | |
clockevents/drivers/arm_global_timer: 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 <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/arm_global_timer.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c index 36998fa18845..9df0d1699d22 100644 --- a/drivers/clocksource/arm_global_timer.c +++ b/drivers/clocksource/arm_global_timer.c @@ -175,6 +175,7 @@ static int gt_clockevents_init(struct clock_event_device *clk) clk->set_state_shutdown = gt_clockevent_shutdown; clk->set_state_periodic = gt_clockevent_set_periodic; clk->set_state_oneshot = gt_clockevent_shutdown; + clk->set_state_oneshot_stopped = gt_clockevent_shutdown; clk->set_next_event = gt_clockevent_set_next_event; clk->cpumask = cpumask_of(cpu); clk->rating = 300; |