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clockevents/drivers/samsung_pwm: Migrate to new 'set-state' interface

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Migrate samsung_pwm driver to the new 'set-state' interface provided by
clockevents core, the earlier 'set-mode' interface is marked obsolete
now.

This also enables us to implement callbacks for new states of clockevent
devices, for example: ONESHOT_STOPPED.

Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Kukjin Kim <kgene@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Viresh Kumar 2015-06-18 16:24:33 +05:30 committed by Daniel Lezcano
parent 99b3fa72ef
commit b49b570474
1 changed files with 19 additions and 22 deletions
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29
drivers/clocksource/samsung_pwm_timer.c
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@ -207,25 +207,18 @@ static int samsung_set_next_event(unsigned long cycles,
return 0;
}
static void samsung_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
static int samsung_shutdown(struct clock_event_device *evt)
{
samsung_time_stop(pwm.event_id);
return 0;
}
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
static int samsung_set_periodic(struct clock_event_device *evt)
{
samsung_time_stop(pwm.event_id);
samsung_time_setup(pwm.event_id, pwm.clock_count_per_tick - 1);
samsung_time_start(pwm.event_id, true);
break;
case CLOCK_EVT_MODE_ONESHOT:
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_RESUME:
break;
}
return 0;
}
static void samsung_clockevent_resume(struct clock_event_device *cev)
@ -241,10 +234,14 @@ static void samsung_clockevent_resume(struct clock_event_device *cev)
static struct clock_event_device time_event_device = {
.name = "samsung_event_timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.features = CLOCK_EVT_FEAT_PERIODIC |
CLOCK_EVT_FEAT_ONESHOT,
.rating = 200,
.set_next_event = samsung_set_next_event,
.set_mode = samsung_set_mode,
.set_state_shutdown = samsung_shutdown,
.set_state_periodic = samsung_set_periodic,
.set_state_oneshot = samsung_shutdown,
.tick_resume = samsung_shutdown,
.resume = samsung_clockevent_resume,
};