clockevents/drivers/atlas7: Migrate to new 'set-state' interface

Migrate atlas7 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: Barry Song <baohua@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/clocksource/timer-atlas7.c b/drivers/clocksource/timer-atlas7.c
index 60f9de3438b04b925de83abaf79aabd2a536ccca..27fa13680be183e981f524781ae6c122109d2888 100644 (file)
--- a/drivers/clocksource/timer-atlas7.c
+++ b/drivers/clocksource/timer-atlas7.c
@@ -76,7 +76,7 @@ static irqreturn_t sirfsoc_timer_interrupt(int irq, void *dev_id)
        /* clear timer interrupt */
        writel_relaxed(BIT(cpu), sirfsoc_timer_base + SIRFSOC_TIMER_INTR_STATUS);
 
-       if (ce->mode == CLOCK_EVT_MODE_ONESHOT)
+       if (clockevent_state_oneshot(ce))
                sirfsoc_timer_count_disable(cpu);
 
        ce->event_handler(ce);
@@ -117,18 +117,11 @@ static int sirfsoc_timer_set_next_event(unsigned long delta,
        return 0;
 }
 
-static void sirfsoc_timer_set_mode(enum clock_event_mode mode,
-       struct clock_event_device *ce)
+/* Oneshot is enabled in set_next_event */
+static int sirfsoc_timer_shutdown(struct clock_event_device *evt)
 {
-       switch (mode) {
-       case CLOCK_EVT_MODE_ONESHOT:
-               /* enable in set_next_event */
-               break;
-       default:
-               break;
-       }
-
        sirfsoc_timer_count_disable(smp_processor_id());
+       return 0;
 }
 
 static void sirfsoc_clocksource_suspend(struct clocksource *cs)
@@ -193,7 +186,9 @@ static int sirfsoc_local_timer_setup(struct clock_event_device *ce)
        ce->name = "local_timer";
        ce->features = CLOCK_EVT_FEAT_ONESHOT;
        ce->rating = 200;
-       ce->set_mode = sirfsoc_timer_set_mode;
+       ce->set_state_shutdown = sirfsoc_timer_shutdown;
+       ce->set_state_oneshot = sirfsoc_timer_shutdown;
+       ce->tick_resume = sirfsoc_timer_shutdown;
        ce->set_next_event = sirfsoc_timer_set_next_event;
        clockevents_calc_mult_shift(ce, atlas7_timer_rate, 60);
        ce->max_delta_ns = clockevent_delta2ns(-2, ce);