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cpufreq: docs: userspace: Explain HW coordination influence

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Extend the "scaling_setspeed" sysfs attribute description in the
userspace governor documentation to cover possible differences
between the requested and actual CPU frequency.

Signed-off-by: Shashank Balaji <shashank.mahadasyam@sony.com>
Link: https://patch.msgid.link/20250527-userspace-governor-doc-v2-2-0e22c69920f2@sony.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Shashank Balaji
2025-05-27 21:59:10 +09:00
committed by Rafael J. Wysocki
parent 2e1185c9d7
commit 221504a634
1 changed files with 3 additions and 1 deletions
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Documentation/admin-guide/pm/cpufreq.rst
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@@ -398,7 +398,9 @@ policy limits change after that.
This governor does not do anything by itself. Instead, it allows user space
to set the CPU frequency for the policy it is attached to by writing to the
``scaling_setspeed`` attribute of that policy.
``scaling_setspeed`` attribute of that policy. Though the intention may be to
set an exact frequency for the policy, the actual frequency may vary depending
on hardware coordination, thermal and power limits, and other factors.
``schedutil``
-------------