mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-28 21:33:52 +00:00
Code Issues Releases Wiki Activity

dt-bindings: mali-bifrost: Add dynamic-power-coefficient

Browse source 
Add a property dynamic-power-coefficient which allows to register Energy
Model for the Mali Bifrost devices.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20201209115143.15321-3-lukasz.luba@arm.com
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Lukasz Luba 2020-12-09 11:51:43 +00:00 committed by Rob Herring
parent 23dd6845c2
commit e33dc2f363
1 changed files with 17 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
View file

@ -52,6 +52,23 @@ properties:
"#cooling-cells":
const: 2
dynamic-power-coefficient:
$ref: '/schemas/types.yaml#/definitions/uint32'
description:
A u32 value that represents the running time dynamic
power coefficient in units of uW/MHz/V^2. The
coefficient can either be calculated from power
measurements or derived by analysis.
The dynamic power consumption of the GPU is
proportional to the square of the Voltage (V) and
the clock frequency (f). The coefficient is used to
calculate the dynamic power as below -
Pdyn = dynamic-power-coefficient * V^2 * f
where voltage is in V, frequency is in MHz.
required:
- compatible
- reg