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

From: Lukasz Luba
Date: Mon Sep 21 2020 - 08:21:27 EST

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.
The last NULL parameter indicates that the power model is simplified and
created based on DT 'dynamic-power-coefficient', voltage and frequency.

Reviewed-by: Steven Price <steven.price@xxxxxxx>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx>
Signed-off-by: Lukasz Luba <lukasz.luba@xxxxxxx>
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 8ab025d0035f..0d97176c9fb5 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -143,7 +143,7 @@ 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");