/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright 2020 Martin Blumenstingl <martin.blumenstingl@googlemail.com> */ #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); #endif