A kernel-wide framework that lets SoCs describe and control power domains, the on-chip regions whose voltage rails and clocks can be independently switched off when idle. It is the shared plumbing that vendor-specific power-management code plugs into, not hardware support on its own.
This is not actually a driver directory; it is the generic power-domain (genpd) infrastructure that other drivers build on top of. It belongs to the kernel's core power-management subsystem and is essential for modern ARM and other SoC platforms, so removal is not on the table.
repository signals
124files
33,741source lines
308commits, 5y
+36,655 / −2,240lines added / removed, 5y
113authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 308 total · active in 32/61 months
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codex reasoning notes (technical)
Not a driver directory: contains generic PM domain framework/helper code for power-management domains, not a standalone kernel-bound hardware driver.