sparc/time: Migrate to new 'set-state' interface

Migrate sparc drivers 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.

We weren't doing anything which switching to few clockevent modes and so
their callbacks aren't implemented.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 10 insertions, 23 deletions

diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 2e6035c0a8ca..c69b21e51efc 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -674,32 +674,19 @@ static int sparc64_next_event(unsigned long delta,
 	return tick_ops->add_compare(delta) ? -ETIME : 0;
 }
 
-static void sparc64_timer_setup(enum clock_event_mode mode,
-				struct clock_event_device *evt)
-{
-	switch (mode) {
-	case CLOCK_EVT_MODE_ONESHOT:
-	case CLOCK_EVT_MODE_RESUME:
-		break;
-
-	case CLOCK_EVT_MODE_SHUTDOWN:
-		tick_ops->disable_irq();
-		break;
-
-	case CLOCK_EVT_MODE_PERIODIC:
-	case CLOCK_EVT_MODE_UNUSED:
-		WARN_ON(1);
-		break;
-	}
+static int sparc64_timer_shutdown(struct clock_event_device *evt)
+{
+	tick_ops->disable_irq();
+	return 0;
 }
 
 static struct clock_event_device sparc64_clockevent = {
-	.features	= CLOCK_EVT_FEAT_ONESHOT,
-	.set_mode	= sparc64_timer_setup,
-	.set_next_event	= sparc64_next_event,
-	.rating		= 100,
-	.shift		= 30,
-	.irq		= -1,
+	.features		= CLOCK_EVT_FEAT_ONESHOT,
+	.set_state_shutdown	= sparc64_timer_shutdown,
+	.set_next_event		= sparc64_next_event,
+	.rating			= 100,
+	.shift			= 30,
+	.irq			= -1,
 };
 static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);