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clocksource/drivers/timer-microchip-pit64b: Remove suspend/resume ops for ce

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Remove suspend and resume ops for clockevent and add set_state_oneshot()
instead. Along with this mchp_pit64b_{suspend, resume}() were called on
proper function to disable/enable clocks. This will allow disabling clocks
for clockevent in case it is not selected as active clockevent.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220609094041.1796372-2-claudiu.beznea@microchip.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Claudiu Beznea 2022-06-09 12:40:39 +03:00 committed by Daniel Lezcano
parent 5b2ca9bc3f
commit 2c9c4c9e54
1 changed files with 19 additions and 17 deletions
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36
drivers/clocksource/timer-microchip-pit64b.c
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@ -173,7 +173,8 @@ static int mchp_pit64b_clkevt_shutdown(struct clock_event_device *cedev)
{
struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);
if (!clockevent_state_detached(cedev))
mchp_pit64b_suspend(timer);
return 0;
}
@ -182,12 +183,28 @@ static int mchp_pit64b_clkevt_set_periodic(struct clock_event_device *cedev)
{
struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
if (clockevent_state_shutdown(cedev))
mchp_pit64b_resume(timer);
mchp_pit64b_reset(timer, mchp_pit64b_ce_cycles, MCHP_PIT64B_MR_CONT,
MCHP_PIT64B_IER_PERIOD);
return 0;
}
static int mchp_pit64b_clkevt_set_oneshot(struct clock_event_device *cedev)
{
struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
if (clockevent_state_shutdown(cedev))
mchp_pit64b_resume(timer);
mchp_pit64b_reset(timer, mchp_pit64b_ce_cycles, MCHP_PIT64B_MR_ONE_SHOT,
MCHP_PIT64B_IER_PERIOD);
return 0;
}
static int mchp_pit64b_clkevt_set_next_event(unsigned long evt,
struct clock_event_device *cedev)
{
@ -199,20 +216,6 @@ static int mchp_pit64b_clkevt_set_next_event(unsigned long evt,
return 0;
}
static void mchp_pit64b_clkevt_suspend(struct clock_event_device *cedev)
{
struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
mchp_pit64b_suspend(timer);
}
static void mchp_pit64b_clkevt_resume(struct clock_event_device *cedev)
{
struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
mchp_pit64b_resume(timer);
}
static irqreturn_t mchp_pit64b_interrupt(int irq, void *dev_id)
{
struct mchp_pit64b_clkevt *irq_data = dev_id;
@ -395,9 +398,8 @@ static int __init mchp_pit64b_init_clkevt(struct mchp_pit64b_timer *timer,
ce->clkevt.rating = 150;
ce->clkevt.set_state_shutdown = mchp_pit64b_clkevt_shutdown;
ce->clkevt.set_state_periodic = mchp_pit64b_clkevt_set_periodic;
ce->clkevt.set_state_oneshot = mchp_pit64b_clkevt_set_oneshot;
ce->clkevt.set_next_event = mchp_pit64b_clkevt_set_next_event;
ce->clkevt.suspend = mchp_pit64b_clkevt_suspend;
ce->clkevt.resume = mchp_pit64b_clkevt_resume;
ce->clkevt.cpumask = cpumask_of(0);
ce->clkevt.irq = irq;