drivers/cpufreq/bmips-cpufreq.c

File Facts

System

Linux kernel

Corpus path

drivers/cpufreq/bmips-cpufreq.c

Extension

.c

Size

4468 bytes

Lines

187

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.
• 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/cpufreq.h
• linux/module.h
• linux/of_address.h
• linux/slab.h
• asm/time.h

Detected Declarations

• struct cpufreq_compat
• enum bmips_type
• function htp_freq_to_cpu_freq
• function bmips_cpufreq_get_freq_table
• function bmips_cpufreq_get
• function bmips_cpufreq_target_index
• function bmips_cpufreq_exit
• function bmips_cpufreq_init
• function bmips_cpufreq_driver_init
• function bmips_cpufreq_driver_exit
• module init bmips_cpufreq_driver_init

Annotated Snippet

module_init(bmips_cpufreq_driver_init);

static void __exit bmips_cpufreq_driver_exit(void)
{
	cpufreq_unregister_driver(&bmips_cpufreq_driver);
}
module_exit(bmips_cpufreq_driver_exit);

MODULE_AUTHOR("Markus Mayer <mmayer@broadcom.com>");
MODULE_DESCRIPTION("CPUfreq driver for Broadcom BMIPS SoCs");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/cpufreq.h`, `linux/module.h`, `linux/of_address.h`, `linux/slab.h`, `asm/time.h`.
• Detected declarations: `struct cpufreq_compat`, `enum bmips_type`, `function htp_freq_to_cpu_freq`, `function bmips_cpufreq_get_freq_table`, `function bmips_cpufreq_get`, `function bmips_cpufreq_target_index`, `function bmips_cpufreq_exit`, `function bmips_cpufreq_init`, `function bmips_cpufreq_driver_init`, `function bmips_cpufreq_driver_exit`.
• 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.