drivers/cpufreq/pasemi-cpufreq.c

Source file repositories/reference/linux-study-clean/drivers/cpufreq/pasemi-cpufreq.c

File Facts

System: Linux kernel
Corpus path: drivers/cpufreq/pasemi-cpufreq.c
Extension: .c
Size: 6105 bytes
Lines: 274
Domain: Driver Families
Bucket: drivers/cpufreq
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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/cpufreq.h
linux/timer.h
linux/module.h
linux/of_address.h
asm/hw_irq.h
asm/io.h
asm/time.h
asm/smp.h
platforms/pasemi/pasemi.h

Detected Declarations

function get_astate_freq
function get_cur_astate
function get_gizmo_latency
function set_astate
function check_astate
function restore_astate
function pas_cpufreq_cpu_init
function pas_cpufreq_cpu_exit
function pas_cpufreq_target
function pas_cpufreq_init
function pas_cpufreq_exit
module init pas_cpufreq_init

Annotated Snippet

module_init(pas_cpufreq_init);
module_exit(pas_cpufreq_exit);

MODULE_DESCRIPTION("cpufreq driver for PA Semi PWRficient");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>, Olof Johansson <olof@lixom.net>");

Annotation

Immediate include surface: `linux/cpufreq.h`, `linux/timer.h`, `linux/module.h`, `linux/of_address.h`, `asm/hw_irq.h`, `asm/io.h`, `asm/time.h`, `asm/smp.h`.
Detected declarations: `function get_astate_freq`, `function get_cur_astate`, `function get_gizmo_latency`, `function set_astate`, `function check_astate`, `function restore_astate`, `function pas_cpufreq_cpu_init`, `function pas_cpufreq_cpu_exit`, `function pas_cpufreq_target`, `function pas_cpufreq_init`.
Atlas domain: Driver Families / drivers/cpufreq.
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.