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clockevents/drivers/arm_global_timer: Implement ->set_state_oneshot_stopped()

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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 8fff52fd50
("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>
This commit is contained in:
Viresh Kumar 2015-12-23 16:59:13 +05:30 committed by Daniel Lezcano
parent cf8c5009ee
commit 3effa3ceea
1 changed files with 1 additions and 0 deletions
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1
drivers/clocksource/arm_global_timer.c
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@ -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;