drivers/pinctrl/pinctrl-utils.h

File Facts

System

Linux kernel

Corpus path

drivers/pinctrl/pinctrl-utils.h

Extension

.h

Size

1217 bytes

Lines

36

Domain

Driver Families

Bucket

drivers/pinctrl

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/pinctrl/machine.h

Detected Declarations

• struct pinctrl_dev
• struct pinctrl_map

Annotated Snippet

#ifndef __PINCTRL_UTILS_H__
#define __PINCTRL_UTILS_H__

#include <linux/pinctrl/machine.h>

struct pinctrl_dev;
struct pinctrl_map;

int pinctrl_utils_reserve_map(struct pinctrl_dev *pctldev,
		struct pinctrl_map **map, unsigned int *reserved_maps,
		unsigned int *num_maps, unsigned int reserve);
int pinctrl_utils_add_map_mux(struct pinctrl_dev *pctldev,
		struct pinctrl_map **map, unsigned int *reserved_maps,
		unsigned int *num_maps, const char *group,
		const char *function);
int pinctrl_utils_add_map_configs(struct pinctrl_dev *pctldev,
		struct pinctrl_map **map, unsigned int *reserved_maps,
		unsigned int *num_maps, const char *group,
		unsigned long *configs, unsigned int num_configs,
		enum pinctrl_map_type type);
int pinctrl_utils_add_config(struct pinctrl_dev *pctldev,
		unsigned long **configs, unsigned int *num_configs,
		unsigned long config);
void pinctrl_utils_free_map(struct pinctrl_dev *pctldev,
		struct pinctrl_map *map, unsigned int num_maps);

#endif /* __PINCTRL_UTILS_H__ */

Annotation

• Immediate include surface: `linux/pinctrl/machine.h`.
• Detected declarations: `struct pinctrl_dev`, `struct pinctrl_map`.
• Atlas domain: Driver Families / drivers/pinctrl.
• Implementation status: source 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.