Add device to the Energy Model framework. It will create a dedicated and unified data structures used i.e. in the thermal framework. The power model used in dev_pm_opp subsystem is simplified and created based on DT 'dynamic-power-coefficient', volatage and frequency. It is similar to the CPU model used in Energy Aware Scheduler.
Signed-off-by: Lukasz Luba lukasz.luba@arm.com --- drivers/gpu/drm/panfrost/panfrost_devfreq.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index 413987038fbf..d527a5113950 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -105,6 +105,8 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev) } pfdev->devfreq.devfreq = devfreq;
+ dev_pm_opp_of_register_em(dev, NULL); + cooling = of_devfreq_cooling_register(dev->of_node, devfreq); if (IS_ERR(cooling)) DRM_DEV_INFO(dev, "Failed to register cooling device\n"); @@ -118,6 +120,7 @@ void panfrost_devfreq_fini(struct panfrost_device *pfdev) { if (pfdev->devfreq.cooling) devfreq_cooling_unregister(pfdev->devfreq.cooling); + dev_pm_opp_of_unregister_em(&pfdev->pdev->dev); dev_pm_opp_of_remove_table(&pfdev->pdev->dev); }