blob: b8e50feaeab6fc96cc7f9c9dfacf9002885c7181 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2020 Martin Blumenstingl <> */
#ifndef __LIMA_DEVFREQ_H__
#define __LIMA_DEVFREQ_H__
#include <linux/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;
struct devfreq_simple_ondemand_data gov_data;
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);