[PATCH 2/2] clocksource: exynos_mct: Clear timer interrupt when shutdown

From: Stuart Menefy
Date: Sun Feb 10 2019 - 17:51:32 EST

When shutting down the timer, 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 | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 1e325f89d408..d55c30f6981d 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -411,6 +411,7 @@ static int set_state_shutdown(struct clock_event_device *evt)

mevt = container_of(evt, struct mct_clock_event_device, evt);
+ exynos4_mct_tick_clear(mevt);
return 0;