48 static void panthor_devfreq_update_utilization(struct panthor_devfreq *pdevfreq)  in panthor_devfreq_update_utilization()  argument
53 	last = pdevfreq->time_last_update;  in panthor_devfreq_update_utilization()
55 	if (pdevfreq->last_busy_state)  in panthor_devfreq_update_utilization()
56 		pdevfreq->busy_time += ktime_sub(now, last);  in panthor_devfreq_update_utilization()
58 		pdevfreq->idle_time += ktime_sub(now, last);  in panthor_devfreq_update_utilization()
60 	pdevfreq->time_last_update = now;  in panthor_devfreq_update_utilization()
79 static void panthor_devfreq_reset(struct panthor_devfreq *pdevfreq)  in panthor_devfreq_reset()  argument
81 	pdevfreq->busy_time = 0;  in panthor_devfreq_reset()
82 	pdevfreq->idle_time = 0;  in panthor_devfreq_reset()
83 	pdevfreq->time_last_update = ktime_get();  in panthor_devfreq_reset()
90 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_get_dev_status()  local
95 	spin_lock_irqsave(&pdevfreq->lock, irqflags);  in panthor_devfreq_get_dev_status()
97 	panthor_devfreq_update_utilization(pdevfreq);  in panthor_devfreq_get_dev_status()
99 	status->total_time = ktime_to_ns(ktime_add(pdevfreq->busy_time,  in panthor_devfreq_get_dev_status()
100 						   pdevfreq->idle_time));  in panthor_devfreq_get_dev_status()
102 	status->busy_time = ktime_to_ns(pdevfreq->busy_time);  in panthor_devfreq_get_dev_status()
104 	panthor_devfreq_reset(pdevfreq);  in panthor_devfreq_get_dev_status()
106 	spin_unlock_irqrestore(&pdevfreq->lock, irqflags);  in panthor_devfreq_get_dev_status()
144 	struct panthor_devfreq *pdevfreq;  in panthor_devfreq_init()  local
151 	pdevfreq = drmm_kzalloc(&ptdev->base, sizeof(*ptdev->devfreq), GFP_KERNEL);  in panthor_devfreq_init()
152 	if (!pdevfreq)  in panthor_devfreq_init()
155 	ptdev->devfreq = pdevfreq;  in panthor_devfreq_init()
181 	spin_lock_init(&pdevfreq->lock);  in panthor_devfreq_init()
183 	panthor_devfreq_reset(pdevfreq);  in panthor_devfreq_init()
246 	pdevfreq->gov_data.upthreshold = 45;  in panthor_devfreq_init()
247 	pdevfreq->gov_data.downdifferential = 5;  in panthor_devfreq_init()
249 	pdevfreq->devfreq = devm_devfreq_add_device(dev, &panthor_devfreq_profile,  in panthor_devfreq_init()
251 						    &pdevfreq->gov_data);  in panthor_devfreq_init()
252 	if (IS_ERR(pdevfreq->devfreq)) {  in panthor_devfreq_init()
254 		ret = PTR_ERR(pdevfreq->devfreq);  in panthor_devfreq_init()
255 		pdevfreq->devfreq = NULL;  in panthor_devfreq_init()
259 	cooling = devfreq_cooling_em_register(pdevfreq->devfreq, NULL);  in panthor_devfreq_init()
268 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_resume()  local
270 	if (!pdevfreq->devfreq)  in panthor_devfreq_resume()
273 	panthor_devfreq_reset(pdevfreq);  in panthor_devfreq_resume()
275 	drm_WARN_ON(&ptdev->base, devfreq_resume_device(pdevfreq->devfreq));  in panthor_devfreq_resume()
280 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_suspend()  local
282 	if (!pdevfreq->devfreq)  in panthor_devfreq_suspend()
285 	drm_WARN_ON(&ptdev->base, devfreq_suspend_device(pdevfreq->devfreq));  in panthor_devfreq_suspend()
290 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_record_busy()  local
293 	if (!pdevfreq->devfreq)  in panthor_devfreq_record_busy()
296 	spin_lock_irqsave(&pdevfreq->lock, irqflags);  in panthor_devfreq_record_busy()
298 	panthor_devfreq_update_utilization(pdevfreq);  in panthor_devfreq_record_busy()
299 	pdevfreq->last_busy_state = true;  in panthor_devfreq_record_busy()
301 	spin_unlock_irqrestore(&pdevfreq->lock, irqflags);  in panthor_devfreq_record_busy()
306 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_record_idle()  local
309 	if (!pdevfreq->devfreq)  in panthor_devfreq_record_idle()
312 	spin_lock_irqsave(&pdevfreq->lock, irqflags);  in panthor_devfreq_record_idle()
314 	panthor_devfreq_update_utilization(pdevfreq);  in panthor_devfreq_record_idle()
315 	pdevfreq->last_busy_state = false;  in panthor_devfreq_record_idle()
317 	spin_unlock_irqrestore(&pdevfreq->lock, irqflags);  in panthor_devfreq_record_idle()
322 	struct panthor_devfreq *pdevfreq = ptdev->devfreq;  in panthor_devfreq_get_freq()  local
326 	if (!pdevfreq->devfreq)  in panthor_devfreq_get_freq()
329 	ret = pdevfreq->devfreq->profile->get_cur_freq(ptdev->base.dev, &freq);  in panthor_devfreq_get_freq()