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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2019 Collabora ltd. */
#ifndef __PANFROST_DEVFREQ_H__
#define __PANFROST_DEVFREQ_H__
#include <linux/devfreq.h>
#include <linux/spinlock.h>
#include <linux/ktime.h>
struct devfreq;
struct thermal_cooling_device;
struct panfrost_device;
struct panfrost_devfreq {
struct devfreq *devfreq;
struct thermal_cooling_device *cooling;
struct devfreq_simple_ondemand_data gov_data;
bool opp_of_table_added;
unsigned long current_frequency;
unsigned long fast_rate;
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 between multiple jobs.
*/
spinlock_t lock;
};
int panfrost_devfreq_init(struct panfrost_device *pfdev);
void panfrost_devfreq_fini(struct panfrost_device *pfdev);
void panfrost_devfreq_resume(struct panfrost_device *pfdev);
void panfrost_devfreq_suspend(struct panfrost_device *pfdev);
void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq);
void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq);
#endif /* __PANFROST_DEVFREQ_H__ */
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