[PATCH v4 5/5] drm/panfrost: Register devfreq cooling and attempt to add Energy Model

From: Lukasz Luba <lukasz.luba@arm.com>
To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Cc: rui.zhang@intel.com, amit.kucheria@verdurent.com,
	daniel.lezcano@linaro.org, lukasz.luba@arm.com,
	orjan.eide@arm.com, robh@kernel.org,
	alyssa.rosenzweig@collabora.com, steven.price@arm.com,
	airlied@linux.ie, daniel@ffwll.ch, ionela.voinescu@arm.com
Subject: [PATCH v4 5/5] drm/panfrost: Register devfreq cooling and attempt to add Energy Model
Date: Thu, 10 Dec 2020 14:30:14 +0000	[thread overview]
Message-ID: <20201210143014.24685-6-lukasz.luba@arm.com> (raw)
In-Reply-To: <20201210143014.24685-1-lukasz.luba@arm.com>

Register devfreq cooling device and attempt to register Energy Model. This
will add the devfreq device to the Energy Model framework. It will create
a dedicated and unified data structures used i.e. in thermal framework.
It uses simplified Energy Model, created based on voltage, frequency
and DT 'dynamic-power-coefficient'.

Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
---
 drivers/gpu/drm/panfrost/panfrost_devfreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index 78e9d82f7318..f44d28fad085 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -138,7 +138,7 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
 	}
 	pfdevfreq->devfreq = devfreq;
 
-	cooling = of_devfreq_cooling_register(dev->of_node, devfreq);
+	cooling = devfreq_cooling_em_register(devfreq, NULL);
 	if (IS_ERR(cooling))
 		DRM_DEV_INFO(dev, "Failed to register cooling device\n");
 	else
-- 
2.17.1

