41 lines
992 B
Plaintext
41 lines
992 B
Plaintext
Adreno Power Levels
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The Adreno GPU definition should include a variable number of power levels
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defining the GPU and bus frequencies for the levels that the GPU can operate at.
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Required properties:
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- compatible: The compatible name for the object (qcom,gpu-pwrlevels)
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Each powerlevel definition is as follows:
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- reg: Index of the power level (lower is considered higher
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performance)
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- qcom,gpu-freq: The GPU frequency for the power level (in HZ)
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- qcom,bus-freq: An index representing the bus scaling usecase appropriate
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for the power level
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- qcom,io-fraction: A number indicating the fraction of the CPU I/O busy that
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this operating point should represent.
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Sample usage:
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qcom,kgsl-3d0@fdb00000 {
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...
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qcom,gpu-pwrlevels {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "qcom,gpu-pwrlevels";
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qcom,gpu-pwrlevel@0 {
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reg = <0>;
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qcom,gpu-freq = <5000000000>;
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qcom,bus-freq = <3>;
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qcom,io_fraction = <0>;
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};
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};
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...
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};
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