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authorWill Deacon <will@kernel.org>2021-06-08 18:43:41 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2021-08-13 10:24:22 +0300
commit88183788eacb782eb6e1295f1934fb9531b503d6 (patch)
tree2bd689d5b4825c515be74ae03ed75d98f0e09141 /drivers/clocksource
parentae460fd9164b16654d8ec06cbc280b832f840eac (diff)
downloadlinux-88183788eacb782eb6e1295f1934fb9531b503d6.tar.xz
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: Will Deacon <will@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210608154341.10794-3-will@kernel.org
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/exynos_mct.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 804d3e01c8f4..5e3e96d3d1b9 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -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);