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// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/drivers/clocksource/dummy_timer.c
*
* Copyright (C) 2013 ARM Ltd.
* All Rights Reserved
*/
#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,
"clockevents/dummy_timer:starting",
dummy_timer_starting_cpu, NULL);
}
early_initcall(dummy_timer_register);
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