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Devfreq simple device
devfreq-simple-dev is a device that represents a simple device that cannot do
any status reporting and uses a clock that can be scaled by one of more
devfreq governors. It provides a list of usable frequencies for the device
and some additional optional parameters.
Required properties:
- compatible: Must be "devfreq-simple-dev"
- clock-names: Must be "devfreq_clk"
- clocks: Must refer to the clock that's fed to the device.
Optional properties:
- polling-ms: Polling interval for the device in milliseconds. Default: 50
- governor: Initial governor to user for the device. Default: "performance"
- qcom,prepare-clk: Prepare the device clock during initialization.
- freq-tbl-khz: A list of usable frequencies (in kHz) for the device
clock.
Example:
qcom,cache {
compatible = "devfreq-simple-dev";
clock-names = "devfreq_clk";
clocks = <&clock_krait clk_l2_clk>;
polling-ms = 50;
governor = "cpufreq";
freq-tbl-khz =
< 300000 >,
< 345600 >,
< 422400 >,
< 499200 >,
< 576000 >,
< 652800 >,
< 729600 >,
< 806400 >,
< 883200 >,
< 960000 >,
< 1036800 >,
< 1113600 >,
< 1190400 >,
< 1267200 >,
< 1344000 >,
< 1420800 >,
< 1497600 >,
< 1574400 >,
< 1651200 >,
< 1728000 >;
};
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