Commit 88183788 authored by Will Deacon's avatar Will Deacon Committed by Daniel Lezcano
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clocksource/drivers/exynos_mct: Mark MCT device as CLOCK_EVT_FEAT_PERCPU 



The "mct_tick" is a per-cpu clockevents device. Set the
CLOCK_EVT_FEAT_PERCPU feature to prevent e.g. mct_tick0 being unsafely
designated as the global broadcast timer and instead treat the device as
a per-cpu wakeup timer.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210608154341.10794-3-will@kernel.org
parent ae460fd9

drivers/clocksource/exynos_mct.c

+2 −1
Original line number Diff line number Diff line
@@ -465,7 +465,8 @@ static int exynos4_mct_starting_cpu(unsigned int cpu) 
	evt->set_state_oneshot = set_state_shutdown;

	evt->set_state_oneshot_stopped = set_state_shutdown;

	evt->tick_resume = set_state_shutdown;

	evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;

	evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |

			CLOCK_EVT_FEAT_PERCPU;

	evt->rating = MCT_CLKEVENTS_RATING,



	exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET);