drivers/pci/pwrctrl/Kconfig

File Facts

System

Linux kernel

Corpus path

drivers/pci/pwrctrl/Kconfig

Extension

[no extension]

Size

1404 bytes

Lines

51

Domain

Representative Device Path

Bucket

PCIe NVMe Storage Path

Inferred role

Representative Device Path: build/configuration rule

Status

atlas-only

Why This File Exists

Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.

• Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only

config HAVE_PWRCTRL
	bool

config PCI_PWRCTRL
	tristate

config PCI_PWRCTRL_PWRSEQ
	tristate
	select POWER_SEQUENCING
	select PCI_PWRCTRL

config PCI_PWRCTRL_GENERIC
	tristate "Generic PCI Power Control driver for PCI slots and endpoints"
	select POWER_SEQUENCING
	select PCI_PWRCTRL
	help
	  Say Y here to enable the generic PCI Power Control driver to control
	  the power state of PCI slots and endpoints.

	  This is a generic driver that controls the power state of different
	  PCI slots and endpoints. The voltage regulators powering the rails
	  of the PCI slots or endpoints are expected to be defined in the
	  devicetree node of the PCI bridge or endpoint.

config PCI_PWRCTRL_TC9563
	tristate "PCI Power Control driver for TC9563 PCIe switch"
	select PCI_PWRCTRL
	default m if ARCH_QCOM
	depends on I2C
	help
	  Say Y here to enable the PCI Power Control driver of TC9563 PCIe
	  switch.

	  This driver enables power and configures the TC9563 PCIe switch
	  through i2c. TC9563 is a PCIe switch which has one upstream and three
	  downstream ports. To one of the downstream ports integrated ethernet
	  MAC is connected as endpoint device. Other two downstream ports are
	  supposed to connect to external device.

# deprecated
config HAVE_PWRCTL
	bool
	select HAVE_PWRCTRL

# deprecated
config PCI_PWRCTL_PWRSEQ
	tristate
	select PCI_PWRCTRL_PWRSEQ

Annotation

• Atlas domain: Representative Device Path / PCIe NVMe Storage Path.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.