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authorViresh Kumar <viresh.kumar@linaro.org>2015-12-23 16:59:13 +0530
committerDaniel Lezcano <daniel.lezcano@linaro.org>2016-02-25 14:34:06 +0100
commit3effa3ceea2da9f67f042a694e24ba0d8143cff8 (patch)
tree7d1167d085aad19bd224a9758328dab7698b47ab /drivers/clocksource
parentcf8c5009ee37d25cf4da0a250f3044ec6d1144a0 (diff)
downloadop-kernel-dev-3effa3ceea2da9f67f042a694e24ba0d8143cff8.zip
op-kernel-dev-3effa3ceea2da9f67f042a694e24ba0d8143cff8.tar.gz
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.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
index 36998fa..9df0d16 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;
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