4.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Stuart Menefy <[email protected]> commit d2f276c8d3c224d5b493c42b6cf006ae4e64fb1c upstream. 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 <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Tested-by: Marek Szyprowski <[email protected]> Cc: <[email protected]> # v4.3+ Signed-off-by: Daniel Lezcano <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/clocksource/exynos_mct.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -411,6 +411,7 @@ static int set_state_shutdown(struct clo mevt = container_of(evt, struct mct_clock_event_device, evt); exynos4_mct_tick_stop(mevt); + exynos4_mct_tick_clear(mevt); return 0; }
