Re: [PATCH v3 4/4] Documentation: EM: Describe new registration method using DT
From: Viresh Kumar
Date: Thu Feb 24 2022 - 04:15:16 EST
On 24-02-22, 08:11, Lukasz Luba wrote:
> The new registration method allows to get power values from the DT OPP
> definition. The new OPP entry property "opp-microwatt" contains total
> power expressed in micro-Watts. Align the EM documentation with this
> new possible registration method of 'advanced' EM.
>
> Signed-off-by: Lukasz Luba <lukasz.luba@xxxxxxx>
> ---
> Documentation/power/energy-model.rst | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/Documentation/power/energy-model.rst b/Documentation/power/energy-model.rst
> index 5ac62a7b4b7c..719253fd5215 100644
> --- a/Documentation/power/energy-model.rst
> +++ b/Documentation/power/energy-model.rst
> @@ -113,6 +113,16 @@ to: return warning/error, stop working or panic.
> See Section 3. for an example of driver implementing this
> callback, or Section 2.4 for further documentation on this API
>
> +Registration of 'advanced' EM using DT
I am not really sure if this should be called *Advanced*. Just call it
registration of EM using DT.
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +The 'advanced' EM can also be registered using OPP framework and information
> +in DT "operating-points-v2". Each OPP entry in DT can be extended with a
> +property "opp-microwatt" containing micro-Watts power value. This OPP DT
> +property allows a platform to register EM power values which are reflecting
> +total power (static + dynamic). These power values might be coming directly
> +from experiments and measurements.
> +
> Registration of 'simple' EM
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> --
> 2.17.1
--
viresh