drivers/mfd/ioc3.c

File Facts

System

Linux kernel

Corpus path

drivers/mfd/ioc3.c

Extension

.c

Size

16205 bytes

Lines

674

Domain

Driver Families

Bucket

drivers/mfd

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/delay.h
• linux/errno.h
• linux/interrupt.h
• linux/irqdomain.h
• linux/mfd/core.h
• linux/module.h
• linux/pci.h
• linux/platform_device.h
• linux/platform_data/sgi-w1.h
• linux/rtc/ds1685.h
• asm/pci/bridge.h
• asm/sn/ioc3.h

Detected Declarations

• struct ioc3_priv_data
• function ioc3_irq_ack
• function ioc3_irq_mask
• function ioc3_irq_unmask
• function ioc3_irq_domain_map
• function ioc3_irq_domain_unmap
• function ioc3_irq_handler
• function ioc3_map_irq
• function ioc3_irq_domain_setup
• function ioc3_serial_setup
• function ioc3_kbd_setup
• function ioc3_eth_setup
• function ioc3_m48t35_setup
• function ioc3_ds1685_setup
• function ioc3_led_setup
• function ip27_baseio_setup
• function ip27_baseio6g_setup
• function ip27_mio_setup
• function ip30_sysboard_setup
• function ioc3_menet_setup
• function ioc3_menet4_setup
• function ioc3_cad_duo_setup
• function ioc3_setup
• function ioc3_mfd_probe
• function ioc3_mfd_remove

Annotated Snippet

static struct pci_driver ioc3_mfd_driver = {
	.name = "IOC3",
	.id_table = ioc3_mfd_id_table,
	.probe = ioc3_mfd_probe,
	.remove = ioc3_mfd_remove,
};

module_pci_driver(ioc3_mfd_driver);

MODULE_AUTHOR("Thomas Bogendoerfer <tbogendoerfer@suse.de>");
MODULE_DESCRIPTION("SGI IOC3 MFD driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/delay.h`, `linux/errno.h`, `linux/interrupt.h`, `linux/irqdomain.h`, `linux/mfd/core.h`, `linux/module.h`, `linux/pci.h`, `linux/platform_device.h`.
• Detected declarations: `struct ioc3_priv_data`, `function ioc3_irq_ack`, `function ioc3_irq_mask`, `function ioc3_irq_unmask`, `function ioc3_irq_domain_map`, `function ioc3_irq_domain_unmap`, `function ioc3_irq_handler`, `function ioc3_map_irq`, `function ioc3_irq_domain_setup`, `function ioc3_serial_setup`.
• Atlas domain: Driver Families / drivers/mfd.
• Implementation status: pattern 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.