linux-kernel - [PATCH 3/3] clocksource/drivers/timer-ti-dm: Add missing set_state_oneshot

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Message-Id: <20210304072135.52712-4-tony@atomide.com>
Date:   Thu,  4 Mar 2021 09:21:35 +0200
From:   Tony Lindgren <tony@...mide.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Keerthy <j-keerthy@...com>, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/3] clocksource/drivers/timer-ti-dm: Add missing set_state_oneshot_stopped

To avoid spurious timer interrupts when KTIME_MAX is used, we need to
configure set_state_oneshot_stopped(). Although implementing this is
optional, it still affects things like power management for the extra
timer interrupt.

For more information, please see commit 8fff52fd5093 ("clockevents:
Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state") and commit cf8c5009ee37
("clockevents/drivers/arm_arch_timer: Implement
->set_state_oneshot_stopped()").

Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 drivers/clocksource/timer-ti-dm-systimer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c
--- a/drivers/clocksource/timer-ti-dm-systimer.c
+++ b/drivers/clocksource/timer-ti-dm-systimer.c
@@ -552,6 +552,7 @@ static int __init dmtimer_clockevent_init(struct device_node *np)
 	dev->set_state_shutdown = dmtimer_clockevent_shutdown;
 	dev->set_state_periodic = dmtimer_set_periodic;
 	dev->set_state_oneshot = dmtimer_clockevent_shutdown;
+	dev->set_state_oneshot_stopped = dmtimer_clockevent_shutdown;
 	dev->tick_resume = dmtimer_clockevent_shutdown;
 	dev->cpumask = cpu_possible_mask;
 
-- 
2.30.1