3  * A devfreq driver for NVIDIA Tegra SoCs
11 #include <linux/devfreq.h>
180 	struct devfreq		*devfreq;  member
256 	u32 band = avg_band_freq * tegra->devfreq->profile->polling_ms;  in tegra_devfreq_update_avg_wmark()
269 	u32 val = tegra->cur_freq * tegra->devfreq->profile->polling_ms;  in tegra_devfreq_update_wmark()
348 	target_freq = dev->avg_count / tegra->devfreq->profile->polling_ms;  in actmon_device_target_freq()
382 	mutex_lock(&tegra->devfreq->lock);  in actmon_thread_isr()
393 		update_devfreq(tegra->devfreq);  in actmon_thread_isr()
395 	mutex_unlock(&tegra->devfreq->lock);  in actmon_thread_isr()
429 	mutex_lock(&tegra->devfreq->lock);  in tegra_actmon_delayed_update()
430 	update_devfreq(tegra->devfreq);  in tegra_actmon_delayed_update()
431 	mutex_unlock(&tegra->devfreq->lock);  in tegra_actmon_delayed_update()
471 	if (mutex_trylock(&tegra->devfreq->lock)) {  in tegra_actmon_cpu_notify_cb()
474 		mutex_unlock(&tegra->devfreq->lock);  in tegra_actmon_cpu_notify_cb()
478 		 * the moment, then there is no need to update the devfreq's  in tegra_actmon_cpu_notify_cb()
508 	dev->avg_count = tegra->cur_freq * tegra->devfreq->profile->polling_ms;  in tegra_actmon_configure_device()
549 	if (!tegra->devfreq->profile->polling_ms || !tegra->started)  in tegra_actmon_resume()
552 	actmon_writel(tegra, tegra->devfreq->profile->polling_ms - 1,  in tegra_actmon_resume()
563 		dev_err(tegra->devfreq->dev.parent,  in tegra_actmon_resume()
583 		dev_err(tegra->devfreq->dev.parent,  in tegra_actmon_resume()
617 	if (!tegra->devfreq->profile->polling_ms || !tegra->started)  in tegra_actmon_pause()
680 	stat->total_time = tegra->devfreq->profile->polling_ms * cur_freq;  in tegra_devfreq_get_dev_status()
694 static int tegra_governor_get_target(struct devfreq *devfreq,  in tegra_governor_get_target()  argument
704 	err = devfreq_update_stats(devfreq);  in tegra_governor_get_target()
708 	stat = &devfreq->last_status;  in tegra_governor_get_target()
721 	 * tegra-devfreq driver operates with KHz units, while OPP table  in tegra_governor_get_target()
723 	 * devfreq core.  in tegra_governor_get_target()
730 static int tegra_governor_event_handler(struct devfreq *devfreq,  in tegra_governor_event_handler()  argument
733 	struct tegra_devfreq *tegra = dev_get_drvdata(devfreq->dev.parent);  in tegra_governor_event_handler()
738 	 * Couple devfreq-device with the governor early because it is  in tegra_governor_event_handler()
741 	tegra->devfreq = devfreq;  in tegra_governor_event_handler()
745 		devfreq_monitor_start(devfreq);  in tegra_governor_event_handler()
751 		devfreq_monitor_stop(devfreq);  in tegra_governor_event_handler()
765 		devfreq_update_interval(devfreq, new_delay);  in tegra_governor_event_handler()
771 		devfreq_monitor_suspend(devfreq);  in tegra_governor_event_handler()
775 		devfreq_monitor_resume(devfreq);  in tegra_governor_event_handler()
797 	struct devfreq *devfreq;  in tegra_devfreq_probe()  local
839 					"tegra-devfreq", tegra);  in tegra_devfreq_probe()
903 	devfreq = devfreq_add_device(&pdev->dev, &tegra_devfreq_profile,  in tegra_devfreq_probe()
905 	if (IS_ERR(devfreq)) {  in tegra_devfreq_probe()
906 		err = PTR_ERR(devfreq);  in tegra_devfreq_probe()
933 	devfreq_remove_device(tegra->devfreq);  in tegra_devfreq_remove()
972 		.name = "tegra-devfreq",
979 MODULE_DESCRIPTION("Tegra devfreq driver");