drivers/mfd/max8997.c

File Facts

System

Linux kernel

Corpus path

drivers/mfd/max8997.c

Extension

.c

Size

12080 bytes

Lines

480

Domain

Driver Families

Bucket

drivers/mfd

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/err.h
• linux/slab.h
• linux/i2c.h
• linux/of.h
• linux/of_irq.h
• linux/interrupt.h
• linux/pm_runtime.h
• linux/init.h
• linux/mutex.h
• linux/mfd/core.h
• linux/mfd/max8997.h
• linux/mfd/max8997-private.h

Detected Declarations

• function max8997_read_reg
• function max8997_bulk_read
• function max8997_write_reg
• function max8997_bulk_write
• function max8997_update_reg
• function max8997_i2c_probe
• function max8997_freeze
• function max8997_restore
• function max8997_suspend
• function max8997_resume
• function max8997_i2c_init
• module init max8997_i2c_init
• export max8997_read_reg
• export max8997_bulk_read
• export max8997_write_reg
• export max8997_bulk_write
• export max8997_update_reg

Annotated Snippet

subsys_initcall(max8997_i2c_init);

Annotation

• Immediate include surface: `linux/err.h`, `linux/slab.h`, `linux/i2c.h`, `linux/of.h`, `linux/of_irq.h`, `linux/interrupt.h`, `linux/pm_runtime.h`, `linux/init.h`.
• Detected declarations: `function max8997_read_reg`, `function max8997_bulk_read`, `function max8997_write_reg`, `function max8997_bulk_write`, `function max8997_update_reg`, `function max8997_i2c_probe`, `function max8997_freeze`, `function max8997_restore`, `function max8997_suspend`, `function max8997_resume`.
• Atlas domain: Driver Families / drivers/mfd.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.