drivers/dpll/dpll_core.c

File Facts

System

Linux kernel

Corpus path

drivers/dpll/dpll_core.c

Extension

.c

Size

29256 bytes

Lines

1176

Domain

Driver Families

Bucket

drivers/dpll

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/device.h
• linux/err.h
• linux/idr.h
• linux/module.h
• linux/property.h
• linux/slab.h
• linux/string.h
• dpll_core.h
• dpll_netlink.h

Detected Declarations

• struct dpll_device_registration
• struct dpll_pin_registration
• function call_dpll_notifiers
• function dpll_device_notify
• function dpll_pin_notify
• function dpll_device_tracker_alloc
• function dpll_device_tracker_free
• function __dpll_device_hold
• function __dpll_device_put
• function dpll_pin_tracker_alloc
• function dpll_pin_tracker_free
• function __dpll_pin_hold
• function __dpll_pin_put
• function dpll_pin_registration_find
• function list_for_each_entry
• function dpll_xa_ref_pin_add
• function xa_for_each
• function dpll_xa_ref_pin_del
• function xa_for_each
• function dpll_xa_ref_dpll_add
• function xa_for_each
• function dpll_xa_ref_dpll_del
• function xa_for_each
• function dpll_device_alloc
• function ERR_PTR
• function dpll_device_put
• function dpll_device_registration_find
• function list_for_each_entry
• function dpll_device_register
• function dpll_device_unregister
• function dpll_pin_idx_alloc
• function dpll_pin_idx_free
• function dpll_pin_prop_free
• function dpll_pin_prop_dup
• function dpll_pin_alloc
• function dpll_netdev_pin_assign
• function dpll_netdev_pin_set
• function dpll_netdev_pin_clear
• function register_dpll_notifier
• function unregister_dpll_notifier
• function pin
• function dpll_pin_put
• function dpll_pin_fwnode_set
• function __dpll_pin_register
• function dpll_pin_register
• function firmware
• function dpll_pin_ref_sync_pair_del
• function xa_for_each

Annotated Snippet

subsys_initcall(dpll_init);
module_exit(dpll_exit);

Annotation

• Immediate include surface: `linux/device.h`, `linux/err.h`, `linux/idr.h`, `linux/module.h`, `linux/property.h`, `linux/slab.h`, `linux/string.h`, `dpll_core.h`.
• Detected declarations: `struct dpll_device_registration`, `struct dpll_pin_registration`, `function call_dpll_notifiers`, `function dpll_device_notify`, `function dpll_pin_notify`, `function dpll_device_tracker_alloc`, `function dpll_device_tracker_free`, `function __dpll_device_hold`, `function __dpll_device_put`, `function dpll_pin_tracker_alloc`.
• Atlas domain: Driver Families / drivers/dpll.
• 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.