clockevents: Handle tick device's resume separately

Upcoming patch will redefine possible states of a clockevent
device. The RESUME mode is a special case only for tick's
clockevent devices. In future it can be replaced by ->resume()
callback already available for clockevent devices.

Lets handle it separately so that clockevents_set_mode() only
handles states valid across all devices. This also renames
set_mode_resume() to tick_resume() to make it more explicit.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: linaro-kernel@lists.linaro.org
Cc: linaro-networking@linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/c1b0112410870f49e7bf06958e1483eac6c15e20.1425037853.git.viresh.kumar@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 59af26b..a417495 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -87,7 +87,7 @@
  * @set_mode_periodic:	switch mode to periodic, if !set_mode
  * @set_mode_oneshot:	switch mode to oneshot, if !set_mode
  * @set_mode_shutdown:	switch mode to shutdown, if !set_mode
- * @set_mode_resume:	resume clkevt device, if !set_mode
+ * @tick_resume:	resume clkevt device, if !set_mode
  * @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
@@ -125,7 +125,7 @@
 	int			(*set_mode_periodic)(struct clock_event_device *);
 	int			(*set_mode_oneshot)(struct clock_event_device *);
 	int			(*set_mode_shutdown)(struct clock_event_device *);
-	int			(*set_mode_resume)(struct clock_event_device *);
+	int			(*tick_resume)(struct clock_event_device *);
 
 	void			(*broadcast)(const struct cpumask *mask);
 	void			(*suspend)(struct clock_event_device *);