drivers/platform/x86/pmc_atom.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/pmc_atom.c

Extension

.c

Size

15654 bytes

Lines

608

Domain

Driver Families

Bucket

drivers/platform

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/debugfs.h
• linux/device.h
• linux/dmi.h
• linux/init.h
• linux/io.h
• linux/platform_data/x86/clk-pmc-atom.h
• linux/platform_data/x86/pmc_atom.h
• linux/platform_data/x86/simatic-ipc.h
• linux/platform_device.h
• linux/pci.h
• linux/seq_file.h
• linux/suspend.h

Detected Declarations

• struct pmc_bit_map
• struct pmc_reg_map
• struct pmc_data
• struct pmc_dev
• function pmc_reg_read
• function pmc_reg_write
• function pmc_atom_read
• function pmc_power_off
• function pmc_hw_reg_setup
• function pmc_dev_state_print
• function pmc_dev_state_show
• function pmc_pss_state_show
• function pmc_sleep_tmr_show
• function pmc_dbgfs_register
• function pmc_dbgfs_register
• function dmi_callback
• function dmi_callback_siemens
• function pmc_setup_clks
• function pmc_dev_state_check
• function pmc_s2idle_check
• function pmc_s2idle_check_register
• function pmc_s2idle_check_register
• function pmc_atom_init
• module init pmc_atom_init

Annotated Snippet

device_initcall(pmc_atom_init);

/*
MODULE_AUTHOR("Aubrey Li <aubrey.li@linux.intel.com>");
MODULE_DESCRIPTION("Intel Atom SoC Power Management Controller Interface");
MODULE_LICENSE("GPL v2");
*/

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/debugfs.h`, `linux/device.h`, `linux/dmi.h`, `linux/init.h`, `linux/io.h`, `linux/platform_data/x86/clk-pmc-atom.h`, `linux/platform_data/x86/pmc_atom.h`.
• Detected declarations: `struct pmc_bit_map`, `struct pmc_reg_map`, `struct pmc_data`, `struct pmc_dev`, `function pmc_reg_read`, `function pmc_reg_write`, `function pmc_atom_read`, `function pmc_power_off`, `function pmc_hw_reg_setup`, `function pmc_dev_state_print`.
• Atlas domain: Driver Families / drivers/platform.
• Implementation status: integration implementation candidate.

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.