cppc_get_transition_latency
EXPORT_SYMBOL_GPL(cppc_get_transition_latency);
transition_delay_ns = cppc_get_transition_latency(cpu);
transition_latency = cppc_get_transition_latency(cpu);
int transition_latency_ns = cppc_get_transition_latency(cpu);
extern int cppc_get_transition_latency(int cpu);