clockevents: Provide combined configure and register function

All clockevent devices have the same open coded initialization
functions. Provide an interface which does all necessary
initialization in the core code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Link: http://lkml.kernel.org/r/%3C20110518210136.331975870%40linutronix.de%3E

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 9466eebc8e19..80acc79e0dc5 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -69,6 +69,8 @@ enum clock_event_nofitiers {
  * @retries:            number of forced programming retries
  * @set_mode:           set mode function
  * @broadcast:          function to broadcast events
+ * @min_delta_ticks:    minimum delta value in ticks stored for reconfiguration
+ * @max_delta_ticks:    maximum delta value in ticks stored for reconfiguration
  * @name:               ptr to clock event name
  * @rating:             variable to rate clock event devices
  * @irq:                IRQ number (only for non CPU local devices)
@@ -91,6 +93,9 @@ struct clock_event_device {
         void                    (*broadcast)(const struct cpumask *mask);
         void                    (*set_mode)(enum clock_event_mode mode,
                                             struct clock_event_device *);
+        unsigned long           min_delta_ticks;
+        unsigned long           max_delta_ticks;
+
         const char              *name;
         int                     rating;
         int                     irq;
@@ -123,6 +128,10 @@ extern u64 clockevent_delta2ns(unsigned long latch,
                                struct clock_event_device *evt);
 extern void clockevents_register_device(struct clock_event_device *dev);
 
+extern void clockevents_config_and_register(struct clock_event_device *dev,
+                                            u32 freq, unsigned long min_delta,
+                                            unsigned long max_delta);
+
 extern void clockevents_exchange_device(struct clock_event_device *old,
                                         struct clock_event_device *new);
 extern void clockevents_set_mode(struct clock_event_device *dev,