Venkata Narendra Kumar Gutta
ed241f1327
Add devicetree bindings snapshot to the devicetree project.
This snapshot is taken as of
'commit f3dd4aaeb3 (Merge
"platform: qpnp-revid: Add REVID support for PM7250B")' of
the kernel project.
Change-Id: I5e0ec0eae63ff9c071b2924bd84c5b20d3f6554d
49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
Devfreq simple device
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devfreq-simple-dev is a device that represents a simple device that cannot do
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any status reporting and uses a clock that can be scaled by one of more
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devfreq governors. It provides a list of usable frequencies for the device
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and some additional optional parameters.
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Required properties:
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- compatible: Must be "devfreq-simple-dev"
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- clock-names: Must be "devfreq_clk"
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- clocks: Must refer to the clock that's fed to the device.
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Optional properties:
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- polling-ms: Polling interval for the device in milliseconds. Default: 50
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- governor: Initial governor to user for the device. Default: "performance"
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- qcom,prepare-clk: Prepare the device clock during initialization.
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- freq-tbl-khz: A list of usable frequencies (in kHz) for the device
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clock.
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Example:
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qcom,cache {
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compatible = "devfreq-simple-dev";
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clock-names = "devfreq_clk";
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clocks = <&clock_krait clk_l2_clk>;
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polling-ms = 50;
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governor = "cpufreq";
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freq-tbl-khz =
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< 300000 >,
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< 345600 >,
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< 422400 >,
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< 499200 >,
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< 576000 >,
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< 652800 >,
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< 729600 >,
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< 806400 >,
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< 883200 >,
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< 960000 >,
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< 1036800 >,
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< 1113600 >,
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< 1190400 >,
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< 1267200 >,
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< 1344000 >,
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< 1420800 >,
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< 1497600 >,
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< 1574400 >,
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< 1651200 >,
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< 1728000 >;
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};
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