| Message ID | 20201209115143.15321-3-lukasz.luba@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add DT bindings with dynamic-power-coefficient for Mali GPUs | expand |
On Wed, 09 Dec 2020 11:51:43 +0000, Lukasz Luba wrote: > 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> > --- > .../bindings/gpu/arm,mali-bifrost.yaml | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > Applied, thanks!
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml index b1844b9c295d..184492162e7e 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml @@ -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
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> --- .../bindings/gpu/arm,mali-bifrost.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)