Rama Aparna Mallavarapu
a9a82cfe90
The static map governor registers with a clock notifier and votes for the bandwidth on the slave port as per the core-dev freq table. Change-Id: I57cac95815da03428bb6ca65ffe57f6ba366dc33
31 lines
1.2 KiB
Plaintext
31 lines
1.2 KiB
Plaintext
MSM Static Map governor
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static map governor is a device that registers with a clock notifier
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of the master port and votes for the slave port using the core-dev freq
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mapping table. The idea behind the governor is to match the voltage corners
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of the master and slave ports when voting for the bandwidth.
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Required properties:
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- compatible: Must be "qcom,static-map"
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- clocks: The phandles for clock specified in "clock-names" property
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- clock-names: Names of the clocks for registering a notifier
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- qcom,dev-clk: Names of the clocks for registering a notifier
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- qcom,target-dev: The DT device that corresponds to this master port
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- qcom,core-dev-table: A mapping table of core frequency to a required
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bandwidth vote at the given core frequency.
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Example:
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npu_staticmap_mon: qcom,npu-staticmap-mon {
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compatible = "qcom,static-map";
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qcom,target-dev = <&npu_ddr_static>;
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clocks = <&clock_npucc NPU_CC_CAL_HM0_CLK>;
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clock-names = "cal_hm0_clk";
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qcom,dev_clk = "cal_hm0_clk";
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qcom,core-dev-table =
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< 0 MHZ_TO_MBPS( 0, 4) >,
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< 200000 MHZ_TO_MBPS( 451, 4) >,
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< 466000 MHZ_TO_MBPS( 768, 4) >,
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< 533000 MHZ_TO_MBPS( 1017, 4) >,
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< 850000 MHZ_TO_MBPS( 1555, 4) >,
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< 1000000 MHZ_TO_MBPS( 2736, 4) >;
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};
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