[PATCH 01/17] clocksource: exynos_mct: Clear timer interrupt when stopping

[Stuart Menefy <stuart.menefy@xxxxxxxxxxxxxxxx>]

Ensure that after we have stopped the timer any pending interrupts
are cleared. This fixes a problem when suspending, as interrupts are
disabled before the timer is stopped, so the timer interrupt may still
be asserted, preventing the system entering a low power state when the
wfi is executed.

Signed-off-by: Stuart Menefy <stuart.menefy@xxxxxxxxxxxxxxxx>
---
 drivers/clocksource/exynos_mct.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 7a244b681876..c99d0b6e8b5f 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -398,12 +398,15 @@ static int exynos4_tick_set_next_event(unsigned long cycles,
 	return 0;
 }
 
+static void exynos4_mct_tick_clear(struct mct_clock_event_device *mevt);
+
 static int set_state_shutdown(struct clock_event_device *evt)
 {
 	struct mct_clock_event_device *mevt;
 
 	mevt = container_of(evt, struct mct_clock_event_device, evt);
 	exynos4_mct_tick_stop(mevt);
+	exynos4_mct_tick_clear(mevt);
 	return 0;
 }
 
-- 
2.13.6