arch/powerpc/sysdev/mpc5xxx_clocks.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/sysdev/mpc5xxx_clocks.c

Extension

.c

Size

854 bytes

Lines

37

Domain

Architecture Layer

Bucket

arch/powerpc

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• 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/kernel.h
• linux/export.h
• linux/property.h
• asm/mpc5xxx.h

Detected Declarations

• function frequency
• function fwnode_for_each_parent_node
• export mpc5xxx_fwnode_get_bus_frequency

Annotated Snippet

if (!ret) {
			fwnode_handle_put(parent);
			return bus_freq;
		}
	}

	return 0;
}
EXPORT_SYMBOL(mpc5xxx_fwnode_get_bus_frequency);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/export.h`, `linux/property.h`, `asm/mpc5xxx.h`.
• Detected declarations: `function frequency`, `function fwnode_for_each_parent_node`, `export mpc5xxx_fwnode_get_bus_frequency`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.