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Sure. > > That being said I have a general question to linux-doc. > > Why is this is date based?  I would expect a date is meaningless to > anyone reads this documentation.  People who want to know if an > interface is available would normally look at their kernel version to > tell. > > So wouldn't it make more sense for this field to be something like: > > Version: 6.19 > >> +Contact:     linux-pm@vger.kernel.org >> +Description: Minimum Performance >> + >> +             Read/write a 32 bits value from/to this file. This file >> +             conveys the minimum performance level at which the >> platform >> +             may run. Minimum performance may be set to any performance >> +             value in the range [Lowest Performance, Highest >> Performance], > > How will a user discover the lowest -> highest range? > > IE I think you should document how to lookup those caps too. Ok, will add the info about these nodes as below.  Minimum performance may be set to any performance  value in the range [Lowest Performance, Highest Performance],  inclusive but must be set to a value that is less than or  equal to that specified by the Maximum Performance Register.  The range can be checked from nodes:    /sys/devices/system/cpu/cpuX/acpi_cppc/highest_perf    /sys/devices/system/cpu/cpuX/acpi_cppc/lowest_perf Thank you, Sumit > >> +             inclusive but must be set to a value that is less than or >> +             equal to that specified by the Maximum Performance >> Register. >> + >> +             Writing to this file only has meaning when Autonomous >> Selection >> +             is enabled. >> + >> +             This file is only present if the cppc-cpufreq driver is >> in use. >> + >> +What: /sys/devices/system/cpu/cpuX/cpufreq/max_perf >> +Date:                September 2025 >> +Contact:     linux-pm@vger.kernel.org >> +Description: Minimum Performance >> + >> +             Read/write a 32 bits value from/to this file. This file >> conveys >> +             the maximum performance level at which the platform may >> run. >> +             Maximum performance may be set to any performance value >> in the >> +             range [Lowest Performance, Highest Performance], >> inclusive. >> + >> +             Writing to this file only has meaning when Autonomous >> Selection is >> +             enabled. >> + >> +             This file is only present if the cppc-cpufreq driver is >> in use. >> + >> +What: /sys/devices/system/cpu/cpuX/cpufreq/perf_limited >> +Date:                September 2025 >> +Contact:     linux-pm@vger.kernel.org >> +Description: Minimum Performance >> + >> +             Read/write a 32 bits value from/to this file. This file >> indicates >> +             to OSPM that an unpredictable event has limited processor >> +             performance, and the delivered performance may be less >> than >> +             desired/minimum performance. >> + >> +             This file is only present if the cppc-cpufreq driver is >> in use. >> >>   What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1} >>   Date:               August 2008 >