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Commit 3effa3ce authored by Viresh Kumar's avatar Viresh Kumar Committed by Daniel Lezcano
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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 8fff52fd
("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state").

Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent cf8c5009

drivers/clocksource/arm_global_timer.c

+1 −0
Original line number Diff line number Diff line
@@ -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;