4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stuart Menefy <stuart.men...@mathembedded.com>
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 <stuart.men...@mathembedded.com>
Reviewed-by: Krzysztof Kozlowski <k...@kernel.org>
Tested-by: Marek Szyprowski <m.szyprow...@samsung.com>
Cc: <sta...@vger.kernel.org> # v4.3+
Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
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;
}
