A kernel-internal framework that lets platform code describe the voltage and frequency pairs a CPU, GPU, or other clocked block can run at. CPU frequency scaling, devfreq, and SoC drivers consult it to pick safe operating points for dynamic voltage and frequency scaling.
This is not actually a driver directory; it is the shared OPP library that other subsystems and SoC drivers build on top of when implementing power and performance scaling. There is no hardware to keep or remove here, and the code is foundational infrastructure used across virtually every modern ARM and embedded platform.
repository signals
8files
5,950source lines
144commits, 5y
+3,124 / −2,805lines added / removed, 5y
43authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 144 total · active in 43/61 months
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codex reasoning notes (technical)
Not a driver directory: contains the generic OPP (Operating Performance Points) core/framework code used by platform drivers, not a hardware device driver for a specific chipset or device class.