[PATCH] clocksource: timer-riscv: Clear timer interrupt on timer initialization

[Ley Foon Tan]

In the RISC-V specification, the stimecmp register doesn't have a default
value. To prevent the timer interrupt from being triggered during timer
initialization, clear the timer interrupt by writing stimecmp with a
maximum value.

Signed-off-by: Ley Foon Tan <leyfoon.tan at starfivetech.com>
---
 drivers/clocksource/timer-riscv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index e66dcbd66566..a75a74647344 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -172,6 +172,9 @@ static int __init riscv_timer_init_common(void)
 
 	sched_clock_register(riscv_sched_clock, 64, riscv_timebase);
 
+	/* Clear timer interrupt */
+	riscv_clock_event_stop();
+
 	error = request_percpu_irq(riscv_clock_event_irq,
 				    riscv_timer_interrupt,
 				    "riscv-timer", &riscv_clock_event);
-- 
2.43.0