Subject: Re: [PATCH v5 5/5] drm/panfrost: Register devfreq cooling and attempt to add Energy Model

From: Alyssa Rosenzweig <[email-masked]>
Date: Wed, 18 Mar 2020 09:11:14 -0400

Reviewed-by: Alyssa Rosenzweig <[email-masked]>

On Wed, Mar 18, 2020 at 11:45:48AM +0000, Lukasz Luba wrote:
> 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 <[email-masked]>
> Signed-off-by: Lukasz Luba <[email-masked]>
> ---
>  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 413987038fbf..8759a73db153 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
> @@ -105,7 +105,7 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
>  	}
>  	pfdev->devfreq.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
> 
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