30 lines
888 B
Plaintext
30 lines
888 B
Plaintext
Tegra194 CPU frequency scaling driver bindings
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----------------------------------------------
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Required properties :
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- compatible : Must be one of the following
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"nvidia,tegra194-cpufreq"
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Optional properties:
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- status : standard DT availability property.
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- cpu_emc_map : specifies list of pairs cpufreq and emcfreq (unit in KHz) scaling
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table datas in decrease order for EMC clock floor rate request based on CPU clock
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frequency.
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- debug_fs_only : used to limit the cpufreq driver functionality
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For linux in guest environment there is no need for full fledged cpufreq
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driver in the guest. Only requirement is to support sysfs to read cpu frequency.
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For example,
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cpufreq@d080000 {
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compatible = "nvidia,tegra194-cpufreq";
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status = "okay";
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cpu_emc_map = <1500000 800000>,
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<900000 675000>,
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<550000 408000>,
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<340000 204000>,
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<000000 102000>;
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};
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