/* *  linux/drivers/clocksource/dummy_timer.c * *  Copyright (C) 2013 ARM Ltd. *  All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */#include <linux/clockchips.h>#include <linux/cpu.h>#include <linux/init.h>#include <linux/percpu.h>#include <linux/cpumask.h> static DEFINE_PER_CPU(struct clock_event_device, dummy_timer_evt); static int dummy_timer_starting_cpu(unsigned int cpu){	struct clock_event_device *evt = per_cpu_ptr(&dummy_timer_evt, cpu); 	evt->name	= "dummy_timer";	evt->features	= CLOCK_EVT_FEAT_PERIODIC |			  CLOCK_EVT_FEAT_ONESHOT |			  CLOCK_EVT_FEAT_DUMMY;	evt->rating	= 100;	evt->cpumask	= cpumask_of(cpu); 	clockevents_register_device(evt);	return 0;} static int __init dummy_timer_register(void){	return cpuhp_setup_state(CPUHP_AP_DUMMY_TIMER_STARTING,				 "AP_DUMMY_TIMER_STARTING",				 dummy_timer_starting_cpu, NULL);}early_initcall(dummy_timer_register);