clockevents/drivers/vt8500: Migrate to new 'set-state' interface

Migrate vt8500 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: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c
index 1098ed3b9b89f2663fbf8a989017d0a7621a9504..a92e94b40b5b031e12074e26483e2e0c61b1d986 100644 (file)
--- a/drivers/clocksource/vt8500_timer.c
+++ b/drivers/clocksource/vt8500_timer.c
@@ -88,29 +88,20 @@ static int vt8500_timer_set_next_event(unsigned long cycles,
        return 0;
 }
 
-static void vt8500_timer_set_mode(enum clock_event_mode mode,
-                             struct clock_event_device *evt)
+static int vt8500_shutdown(struct clock_event_device *evt)
 {
-       switch (mode) {
-       case CLOCK_EVT_MODE_RESUME:
-       case CLOCK_EVT_MODE_PERIODIC:
-               break;
-       case CLOCK_EVT_MODE_ONESHOT:
-       case CLOCK_EVT_MODE_UNUSED:
-       case CLOCK_EVT_MODE_SHUTDOWN:
-               writel(readl(regbase + TIMER_CTRL_VAL) | 1,
-                       regbase + TIMER_CTRL_VAL);
-               writel(0, regbase + TIMER_IER_VAL);
-               break;
-       }
+       writel(readl(regbase + TIMER_CTRL_VAL) | 1, regbase + TIMER_CTRL_VAL);
+       writel(0, regbase + TIMER_IER_VAL);
+       return 0;
 }
 
 static struct clock_event_device clockevent = {
-       .name           = "vt8500_timer",
-       .features       = CLOCK_EVT_FEAT_ONESHOT,
-       .rating         = 200,
-       .set_next_event = vt8500_timer_set_next_event,
-       .set_mode       = vt8500_timer_set_mode,
+       .name                   = "vt8500_timer",
+       .features               = CLOCK_EVT_FEAT_ONESHOT,
+       .rating                 = 200,
+       .set_next_event         = vt8500_timer_set_next_event,
+       .set_state_shutdown     = vt8500_shutdown,
+       .set_state_oneshot      = vt8500_shutdown,
 };
 
 static irqreturn_t vt8500_timer_interrupt(int irq, void *dev_id)