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clocksource/timer-riscv: Add riscv_clock_shutdown callback

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Add clocksource detach/shutdown callback to disable RISC-V timer interrupt when
switching out riscv timer as clock source

Signed-off-by: Joshua Yeong <joshua.yeong@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20231116105312.4800-1-joshua.yeong@starfivetech.com
This commit is contained in:
Joshua Yeong 2023-11-16 18:53:12 +08:00 committed by Daniel Lezcano
parent e0cf60151e
commit 6a902b118e
1 changed files with 7 additions and 0 deletions
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7
drivers/clocksource/timer-riscv.c
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@ -61,12 +61,19 @@ static int riscv_clock_next_event(unsigned long delta,
return 0; return 0;
} }
static int riscv_clock_shutdown(struct clock_event_device *evt)
{
riscv_clock_event_stop();
return 0;
}
static unsigned int riscv_clock_event_irq; static unsigned int riscv_clock_event_irq;
static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = { static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = {
.name = "riscv_timer_clockevent", .name = "riscv_timer_clockevent",
.features = CLOCK_EVT_FEAT_ONESHOT, .features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 100, .rating = 100,
.set_next_event = riscv_clock_next_event, .set_next_event = riscv_clock_next_event,
.set_state_shutdown = riscv_clock_shutdown,
}; };
/* /*