clockevents/drivers/prima2: Migrate to new 'set-state' interface

Migrate prima2 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-prima2.c b/drivers/clocksource/timer-prima2.c
index ce18d57..78de982 100644 (file)
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -104,26 +104,21 @@ static int sirfsoc_timer_set_next_event(unsigned long delta,
        return next - now > delta ? -ETIME : 0;
 }
 
-static void sirfsoc_timer_set_mode(enum clock_event_mode mode,
-       struct clock_event_device *ce)
+static int sirfsoc_timer_shutdown(struct clock_event_device *evt)
 {
        u32 val = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
-       switch (mode) {
-       case CLOCK_EVT_MODE_PERIODIC:
-               WARN_ON(1);
-               break;
-       case CLOCK_EVT_MODE_ONESHOT:
-               writel_relaxed(val | BIT(0),
-                       sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
-               break;
-       case CLOCK_EVT_MODE_SHUTDOWN:
-               writel_relaxed(val & ~BIT(0),
-                       sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
-               break;
-       case CLOCK_EVT_MODE_UNUSED:
-       case CLOCK_EVT_MODE_RESUME:
-               break;
-       }
+
+       writel_relaxed(val & ~BIT(0),
+                      sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+       return 0;
+}
+
+static int sirfsoc_timer_set_oneshot(struct clock_event_device *evt)
+{
+       u32 val = readl_relaxed(sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+
+       writel_relaxed(val | BIT(0), sirfsoc_timer_base + SIRFSOC_TIMER_INT_EN);
+       return 0;
 }
 
 static void sirfsoc_clocksource_suspend(struct clocksource *cs)
@@ -157,7 +152,8 @@ static struct clock_event_device sirfsoc_clockevent = {
        .name = "sirfsoc_clockevent",
        .rating = 200,
        .features = CLOCK_EVT_FEAT_ONESHOT,
-       .set_mode = sirfsoc_timer_set_mode,
+       .set_state_shutdown = sirfsoc_timer_shutdown,
+       .set_state_oneshot = sirfsoc_timer_set_oneshot,
        .set_next_event = sirfsoc_timer_set_next_event,
 };