From fd05744784293aec511d0472f3e897846a17303d Mon Sep 17 00:00:00 2001 From: Stuart Menefy Date: Sun, 10 Feb 2019 22:51:14 +0000 Subject: [PATCH] clocksource: exynos_mct: Clear timer interrupt when shutdown 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 [pending patch for mainline] Signed-off-by: Marek Szyprowski Change-Id: I2068bbadeb5e778bb81f772693e30a47e64dd77c --- 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_stop(mevt); + exynos4_mct_tick_clear(mevt); return 0; } -- 2.34.1