Commit-ID: d2f276c8d3c224d5b493c42b6cf006ae4e64fb1c Gitweb: https://git.kernel.org/tip/d2f276c8d3c224d5b493c42b6cf006ae4e64fb1c Author: Stuart Menefy <stuart.menefy@xxxxxxxxxxxxxxxx> AuthorDate: Sun, 10 Feb 2019 22:51:14 +0000 Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> CommitDate: Sat, 23 Feb 2019 12:13:45 +0100 clocksource/drivers/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 <stuart.menefy@xxxxxxxxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # v4.3+ Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> --- 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; }
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