kernel: broadcast-hrtimer: Migrate to new 'set-state' interface

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

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

kernel/time/tick-broadcast-hrtimer.c

@@ -18,12 +18,8 @@
 
 static struct hrtimer bctimer;
 
-static void bc_set_mode(enum clock_event_mode mode,
+static int bc_shutdown(struct clock_event_device *evt)
-			struct clock_event_device *bc)
 {
-	switch (mode) {
-	case CLOCK_EVT_MODE_UNUSED:
-	case CLOCK_EVT_MODE_SHUTDOWN:
 	/*
 	 * Note, we cannot cancel the timer here as we might
 	 * run into the following live lock scenario:
@@ -38,10 +34,7 @@ static void bc_set_mode(enum clock_event_mode mode,
 	 *  wait_for_callback()
 	 */
 	hrtimer_try_to_cancel(&bctimer);
-		break;
+	return 0;
-	default:
-		break;
-	}
 }
 
 /*
@@ -82,7 +75,7 @@ static int bc_set_next(ktime_t expires, struct clock_event_device *bc)
 }
 
 static struct clock_event_device ce_broadcast_hrtimer = {
-	.set_mode		= bc_set_mode,
+	.set_state_shutdown	= bc_shutdown,
 	.set_next_ktime		= bc_set_next,
 	.features		= CLOCK_EVT_FEAT_ONESHOT |
 				  CLOCK_EVT_FEAT_KTIME |
@@ -102,13 +95,11 @@ static enum hrtimer_restart bc_handler(struct hrtimer *t)
 {
 	ce_broadcast_hrtimer.event_handler(&ce_broadcast_hrtimer);
 
-	switch (ce_broadcast_hrtimer.mode) {
+	if (clockevent_state_oneshot(&ce_broadcast_hrtimer))
-	case CLOCK_EVT_MODE_ONESHOT:
 		if (ce_broadcast_hrtimer.next_event.tv64 != KTIME_MAX)
 			return HRTIMER_RESTART;
-	default:
+
 	return HRTIMER_NORESTART;
-	}
 }
 
 void tick_setup_hrtimer_broadcast(void)