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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2020 Martin Blumenstingl <martin.blumenstingl@googlemail.com> */
#ifndef __LIMA_DEVFREQ_H__
#define __LIMA_DEVFREQ_H__
#include <linux/spinlock.h>
#include <linux/ktime.h>
struct devfreq;
struct thermal_cooling_device;
struct lima_device;
struct lima_devfreq {
struct devfreq *devfreq;
struct thermal_cooling_device *cooling;
ktime_t busy_time;
ktime_t idle_time;
ktime_t time_last_update;
int busy_count;
/*
* Protect busy_time, idle_time, time_last_update and busy_count
* because these can be updated concurrently, for example by the GP
* and PP interrupts.
*/
spinlock_t lock;
};
int lima_devfreq_init(struct lima_device *ldev);
void lima_devfreq_fini(struct lima_device *ldev);
void lima_devfreq_record_busy(struct lima_devfreq *devfreq);
void lima_devfreq_record_idle(struct lima_devfreq *devfreq);
int lima_devfreq_resume(struct lima_devfreq *devfreq);
int lima_devfreq_suspend(struct lima_devfreq *devfreq);
#endif
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