Sep 12 – 14, 2022
Europe/Dublin timezone

A generic energy model description

Sep 14, 2022, 4:50 PM
"Pembroke" (Clayton Hotel on Burlington Road)


Clayton Hotel on Burlington Road

Power Management and Thermal Control MC Power Management and Thermal Control MC


Daniel Lezcano (Linaro)


The energy model is dispatched through implicit values in the device tree and the power values are deduced from the formula P=CxFxV² by the energy model in the kernel.
Unfortunately, the description is a bit fuzzy if the device is using the Adaptative Voltage Scaling or not performance based, as a battery or a back light.
On the other side, complex energy models exist on out of tree kernels like Android, meaning there is a need for such a description.
A generic energy model description will help to have a clear of view of the power contributors for thermal, power consumers for accounting and performance.

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Primary author

Daniel Lezcano (Linaro)

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