PM: tracing: Hide power_domain_target event under ARCH_OMAP2PLUS

The power_domain_target event event is only called when CONFIG_OMAP2PLUS
is defined. As each event can take up to 5K regardless if they are used or
not, it's best not to define them when they are not used. Add #ifdef
around these events when they are not used.

Cc: Masami Hiramatsu <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Viresh Kumar <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/[email protected]
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: rostedt

include/trace/events/power.h

@@ -319,6 +319,7 @@ DEFINE_EVENT(wakeup_source, wakeup_source_deactivate,
 	TP_ARGS(name, state)
 );
 
+#ifdef CONFIG_ARCH_OMAP2PLUS
 /*
  * The power domain events are used for power domains transitions
  */
@@ -350,6 +351,7 @@ DEFINE_EVENT(power_domain, power_domain_target,
 
 	TP_ARGS(name, state, cpu_id)
 );
+#endif
 
 /*
  * CPU latency QoS events used for global CPU latency QoS list updates