ARM: OMAP: Make dyntick work again

Add set_next_event() and let the clock event code take care of
the rest.

Note that we're still reprogramming timer in periodic mode,
but this is OK as in the worst case we'll just get another
interrupt before timer is programmed again.

Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/timer32k.c b/arch/arm/plat-omap/timer32k.c
index be7cb8eb33bfa5a9e5d390b8132b04d0532db72e..1eaec1c179e9e1033aa24ed391a82a82a54e6484 100644 (file)
--- a/arch/arm/plat-omap/timer32k.c
+++ b/arch/arm/plat-omap/timer32k.c
@@ -146,6 +146,14 @@ static inline void omap_32k_timer_ack_irq(void)
 
 #endif
 
+static int omap_32k_timer_set_next_event(unsigned long delta,
+                                        struct clock_event_device *dev)
+{
+       omap_32k_timer_start(delta);
+
+       return 0;
+}
+
 static void omap_32k_timer_set_mode(enum clock_event_mode mode,
                                    struct clock_event_device *evt)
 {
@@ -153,9 +161,9 @@ static void omap_32k_timer_set_mode(enum clock_event_mode mode,
 
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
+       case CLOCK_EVT_MODE_ONESHOT:
                omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
                break;
-       case CLOCK_EVT_MODE_ONESHOT:
        case CLOCK_EVT_MODE_UNUSED:
        case CLOCK_EVT_MODE_SHUTDOWN:
                break;
@@ -166,8 +174,9 @@ static void omap_32k_timer_set_mode(enum clock_event_mode mode,
 
 static struct clock_event_device clockevent_32k_timer = {
        .name           = "32k-timer",
-       .features       = CLOCK_EVT_FEAT_PERIODIC,
+       .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
        .shift          = 32,
+       .set_next_event = omap_32k_timer_set_next_event,
        .set_mode       = omap_32k_timer_set_mode,
 };