include/linux/of_platform.h

Source file repositories/reference/linux-study-clean/include/linux/of_platform.h

File Facts

System
Linux kernel
Corpus path
include/linux/of_platform.h
Extension
.h
Size
4172 bytes
Lines
129
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 of_dev_auxdata {
	char *compatible;
	resource_size_t phys_addr;
	char *name;
	void *platform_data;
};

/* Macro to simplify populating a lookup table */
#define OF_DEV_AUXDATA(_compat,_phys,_name,_pdata) \
	{ .compatible = _compat, .phys_addr = _phys, .name = _name, \
	  .platform_data = _pdata }

/* Platform drivers register/unregister */
extern struct platform_device *of_device_alloc(struct device_node *np,
					 const char *bus_id,
					 struct device *parent);

extern int of_device_add(struct platform_device *pdev);
extern int of_device_register(struct platform_device *ofdev);
extern void of_device_unregister(struct platform_device *ofdev);

#ifdef CONFIG_OF
extern struct platform_device *of_find_device_by_node(struct device_node *np);
#else
static inline struct platform_device *of_find_device_by_node(struct device_node *np)
{
	return NULL;
}
#endif

extern int of_platform_bus_probe(struct device_node *root,
				 const struct of_device_id *matches,
				 struct device *parent);

#ifdef CONFIG_OF_ADDRESS
/* Platform devices and busses creation */
extern struct platform_device *of_platform_device_create(struct device_node *np,
						   const char *bus_id,
						   struct device *parent);

extern int of_platform_device_destroy(struct device *dev, void *data);

extern int of_platform_populate(struct device_node *root,
				const struct of_device_id *matches,
				const struct of_dev_auxdata *lookup,
				struct device *parent);
extern int of_platform_default_populate(struct device_node *root,
					const struct of_dev_auxdata *lookup,
					struct device *parent);
extern void of_platform_depopulate(struct device *parent);

extern int devm_of_platform_populate(struct device *dev);

extern void devm_of_platform_depopulate(struct device *dev);
#else
/* Platform devices and busses creation */
static inline struct platform_device *of_platform_device_create(struct device_node *np,
								const char *bus_id,
								struct device *parent)
{
	return NULL;
}
static inline int of_platform_device_destroy(struct device *dev, void *data)
{
	return -ENODEV;
}

static inline int of_platform_populate(struct device_node *root,
					const struct of_device_id *matches,
					const struct of_dev_auxdata *lookup,
					struct device *parent)
{
	return -ENODEV;
}
static inline int of_platform_default_populate(struct device_node *root,
					       const struct of_dev_auxdata *lookup,
					       struct device *parent)
{
	return -ENODEV;
}
static inline void of_platform_depopulate(struct device *parent) { }

static inline int devm_of_platform_populate(struct device *dev)
{
	return -ENODEV;
}

static inline void devm_of_platform_depopulate(struct device *dev) { }
#endif

Annotation

Implementation Notes