include/linux/pinctrl/pinconf-generic.h

Source file repositories/reference/linux-study-clean/include/linux/pinctrl/pinconf-generic.h

File Facts

System
Linux kernel
Corpus path
include/linux/pinctrl/pinconf-generic.h
Extension
.h
Size
11249 bytes
Lines
257
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pin_config_item {
	const enum pin_config_param param;
	const char * const display;
	const char * const format;
	bool has_arg;
	const char * const *values;
	size_t num_values;
};

struct pinconf_generic_params {
	const char * const property;
	enum pin_config_param param;
	u32 default_value;
	const char * const *values;
	size_t num_values;
};

int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
		struct device_node *np, struct pinctrl_map **map,
		unsigned int *reserved_maps, unsigned int *num_maps,
		enum pinctrl_map_type type);
int pinconf_generic_dt_node_to_map(struct pinctrl_dev *pctldev,
		struct device_node *np_config, struct pinctrl_map **map,
		unsigned int *num_maps, enum pinctrl_map_type type);
void pinconf_generic_dt_free_map(struct pinctrl_dev *pctldev,
		struct pinctrl_map *map, unsigned int num_maps);

static inline int pinconf_generic_dt_node_to_map_group(struct pinctrl_dev *pctldev,
		struct device_node *np_config, struct pinctrl_map **map,
		unsigned int *num_maps)
{
	return pinconf_generic_dt_node_to_map(pctldev, np_config, map, num_maps,
			PIN_MAP_TYPE_CONFIGS_GROUP);
}

static inline int pinconf_generic_dt_node_to_map_pin(struct pinctrl_dev *pctldev,
		struct device_node *np_config, struct pinctrl_map **map,
		unsigned int *num_maps)
{
	return pinconf_generic_dt_node_to_map(pctldev, np_config, map, num_maps,
			PIN_MAP_TYPE_CONFIGS_PIN);
}

static inline int pinconf_generic_dt_node_to_map_all(struct pinctrl_dev *pctldev,
		struct device_node *np_config, struct pinctrl_map **map,
		unsigned *num_maps)
{
	/*
	 * passing the type as PIN_MAP_TYPE_INVALID causes the underlying parser
	 * to infer the map type from the DT properties used.
	 */
	return pinconf_generic_dt_node_to_map(pctldev, np_config, map, num_maps,
			PIN_MAP_TYPE_INVALID);
}
#endif /* __LINUX_PINCTRL_PINCONF_GENERIC_H */

Annotation

Implementation Notes