drivers/mfd/rohm-bd718x7.c

Source file repositories/reference/linux-study-clean/drivers/mfd/rohm-bd718x7.c

File Facts

System: Linux kernel
Corpus path: drivers/mfd/rohm-bd718x7.c
Extension: .c
Size: 5969 bytes
Lines: 230
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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/gpio_keys.h
linux/i2c.h
linux/input.h
linux/interrupt.h
linux/mfd/rohm-bd718x7.h
linux/mfd/core.h
linux/module.h
linux/of.h
linux/regmap.h
linux/types.h

Detected Declarations

function bd718xx_init_press_duration
function bd718xx_i2c_probe
function bd718xx_i2c_init
function bd718xx_i2c_exit
module init bd718xx_i2c_init

Annotated Snippet

subsys_initcall(bd718xx_i2c_init);

static void __exit bd718xx_i2c_exit(void)
{
	i2c_del_driver(&bd718xx_i2c_driver);
}
module_exit(bd718xx_i2c_exit);

MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
MODULE_DESCRIPTION("ROHM BD71837/BD71847 Power Management IC driver");
MODULE_LICENSE("GPL");

Annotation

Immediate include surface: `linux/gpio_keys.h`, `linux/i2c.h`, `linux/input.h`, `linux/interrupt.h`, `linux/mfd/rohm-bd718x7.h`, `linux/mfd/core.h`, `linux/module.h`, `linux/of.h`.
Detected declarations: `function bd718xx_init_press_duration`, `function bd718xx_i2c_probe`, `function bd718xx_i2c_init`, `function bd718xx_i2c_exit`, `module init bd718xx_i2c_init`.
Atlas domain: Driver Families / drivers/mfd.
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.