Commit 23dd6845 authored by Lukasz Luba's avatar Lukasz Luba Committed by Rob Herring
Browse files

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



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

Signed-off-by: default avatarLukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20201209115143.15321-2-lukasz.luba@arm.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 4aa5b78f

Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml

+17 −0
Original line number Diff line number Diff line
@@ -90,6 +90,23 @@ properties: 


  dma-coherent: true



  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

CRA Git | Maintained and supported by SUSTech CRA and CCSE