[RFC][PATCH 0/2] Introduce 'advanced' Energy Model in DT

From: Lukasz Luba
Date: Mon Feb 21 2022 - 17:51:45 EST


Hi all,

This patch set solves a few issues:
1. It allows to register EM from DT, when the voltage information is not
available. (Some background of the issues present on Chromebook devices
can be checked at [1].)
2. It allows to register 'advanced' EM from the DT, which is more accurate
and reflects total power (dynamic + static).

Implementation details:
It adds a new callback in OPP framework to parse the "energy-model" DT
entry. The propsed DT bindings heavily draw on "operating-points" (v1)
schema.

Comments, suggestions are very welcome.

Regards,
Lukasz Luba

[1] https://lore.kernel.org/linux-pm/20220207073036.14901-2-lukasz.luba@xxxxxxx/

Lukasz Luba (2):
dt-bindings: power: add Energy Model bindings
opp: Add support for 'advanced' Energy Model in DT

.../bindings/power/energy-model.yaml | 51 ++++++++++
drivers/opp/of.c | 95 ++++++++++++++++++-
2 files changed, 145 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/power/energy-model.yaml

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2.17.1