[mirror_ubuntu-bionic-kernel.git] / include / linux / property.h

/*
 * property.h - Unified device property interface.
 *
 * Copyright (C) 2014, Intel Corporation
 * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 *          Mika Westerberg <mika.westerberg@linux.intel.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _LINUX_PROPERTY_H_
#define _LINUX_PROPERTY_H_

#include <linux/fwnode.h>
#include <linux/types.h>

struct device;

enum dev_prop_type {
	DEV_PROP_U8,
	DEV_PROP_U16,
	DEV_PROP_U32,
	DEV_PROP_U64,
	DEV_PROP_STRING,
	DEV_PROP_MAX,
};

enum dev_dma_attr {
	DEV_DMA_NOT_SUPPORTED,
	DEV_DMA_NON_COHERENT,
	DEV_DMA_COHERENT,
};

struct fwnode_handle *dev_fwnode(struct device *dev);

bool device_property_present(struct device *dev, const char *propname);
int device_property_read_u8_array(struct device *dev, const char *propname,
				  u8 *val, size_t nval);
int device_property_read_u16_array(struct device *dev, const char *propname,
				   u16 *val, size_t nval);
int device_property_read_u32_array(struct device *dev, const char *propname,
				   u32 *val, size_t nval);
int device_property_read_u64_array(struct device *dev, const char *propname,
				   u64 *val, size_t nval);
int device_property_read_string_array(struct device *dev, const char *propname,
				      const char **val, size_t nval);
int device_property_read_string(struct device *dev, const char *propname,
				const char **val);
int device_property_match_string(struct device *dev,
				 const char *propname, const char *string);

bool fwnode_device_is_available(const struct fwnode_handle *fwnode);
bool fwnode_property_present(const struct fwnode_handle *fwnode,
			     const char *propname);
int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode,
				  const char *propname, u8 *val,
				  size_t nval);
int fwnode_property_read_u16_array(const struct fwnode_handle *fwnode,
				   const char *propname, u16 *val,
				   size_t nval);
int fwnode_property_read_u32_array(const struct fwnode_handle *fwnode,
				   const char *propname, u32 *val,
				   size_t nval);
int fwnode_property_read_u64_array(const struct fwnode_handle *fwnode,
				   const char *propname, u64 *val,
				   size_t nval);
int fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
				      const char *propname, const char **val,
				      size_t nval);
int fwnode_property_read_string(const struct fwnode_handle *fwnode,
				const char *propname, const char **val);
int fwnode_property_match_string(const struct fwnode_handle *fwnode,
				 const char *propname, const char *string);
int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
				       const char *prop, const char *nargs_prop,
				       unsigned int nargs, unsigned int index,
				       struct fwnode_reference_args *args);

struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_parent(
	struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_child_node(
	const struct fwnode_handle *fwnode, struct fwnode_handle *child);

#define fwnode_for_each_child_node(fwnode, child)			\
	for (child = fwnode_get_next_child_node(fwnode, NULL); child;	\
	     child = fwnode_get_next_child_node(fwnode, child))

struct fwnode_handle *device_get_next_child_node(
	struct device *dev, struct fwnode_handle *child);

#define device_for_each_child_node(dev, child)				\
	for (child = device_get_next_child_node(dev, NULL); child;	\
	     child = device_get_next_child_node(dev, child))

struct fwnode_handle *fwnode_get_named_child_node(
	const struct fwnode_handle *fwnode, const char *childname);
struct fwnode_handle *device_get_named_child_node(struct device *dev,
						  const char *childname);

struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
void fwnode_handle_put(struct fwnode_handle *fwnode);

unsigned int device_get_child_node_count(struct device *dev);

static inline bool device_property_read_bool(struct device *dev,
					     const char *propname)
{
	return device_property_present(dev, propname);
}

static inline int device_property_read_u8(struct device *dev,
					  const char *propname, u8 *val)
{
	return device_property_read_u8_array(dev, propname, val, 1);
}

static inline int device_property_read_u16(struct device *dev,
					   const char *propname, u16 *val)
{
	return device_property_read_u16_array(dev, propname, val, 1);
}

static inline int device_property_read_u32(struct device *dev,
					   const char *propname, u32 *val)
{
	return device_property_read_u32_array(dev, propname, val, 1);
}

static inline int device_property_read_u64(struct device *dev,
					   const char *propname, u64 *val)
{
	return device_property_read_u64_array(dev, propname, val, 1);
}

static inline bool fwnode_property_read_bool(const struct fwnode_handle *fwnode,
					     const char *propname)
{
	return fwnode_property_present(fwnode, propname);
}

static inline int fwnode_property_read_u8(const struct fwnode_handle *fwnode,
					  const char *propname, u8 *val)
{
	return fwnode_property_read_u8_array(fwnode, propname, val, 1);
}

static inline int fwnode_property_read_u16(const struct fwnode_handle *fwnode,
					   const char *propname, u16 *val)
{
	return fwnode_property_read_u16_array(fwnode, propname, val, 1);
}

static inline int fwnode_property_read_u32(const struct fwnode_handle *fwnode,
					   const char *propname, u32 *val)
{
	return fwnode_property_read_u32_array(fwnode, propname, val, 1);
}

static inline int fwnode_property_read_u64(const struct fwnode_handle *fwnode,
					   const char *propname, u64 *val)
{
	return fwnode_property_read_u64_array(fwnode, propname, val, 1);
}

/**
 * struct property_entry - "Built-in" device property representation.
 * @name: Name of the property.
 * @length: Length of data making up the value.
 * @is_array: True when the property is an array.
 * @is_string: True when property is a string.
 * @pointer: Pointer to the property (an array of items of the given type).
 * @value: Value of the property (when it is a single item of the given type).
 */
struct property_entry {
	const char *name;
	size_t length;
	bool is_array;
	bool is_string;
	union {
		union {
			const void *raw_data;
			const u8 *u8_data;
			const u16 *u16_data;
			const u32 *u32_data;
			const u64 *u64_data;
			const char * const *str;
		} pointer;
		union {
			unsigned long long raw_data;
			u8 u8_data;
			u16 u16_data;
			u32 u32_data;
			u64 u64_data;
			const char *str;
		} value;
	};
};

/*
 * Note: the below four initializers for the anonymous union are carefully
 * crafted to avoid gcc-4.4.4's problems with initialization of anon unions
 * and structs.
 */

#define PROPERTY_ENTRY_INTEGER_ARRAY(_name_, _type_, _val_)	\
(struct property_entry) {					\
	.name = _name_,						\
	.length = ARRAY_SIZE(_val_) * sizeof(_type_),		\
	.is_array = true,					\
	.is_string = false,					\
	{ .pointer = { ._type_##_data = _val_ } },		\
}

#define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_)			\
	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u8, _val_)
#define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_)			\
	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u16, _val_)
#define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_)			\
	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, _val_)
#define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_)			\
	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u64, _val_)

#define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_)		\
(struct property_entry) {					\
	.name = _name_,						\
	.length = ARRAY_SIZE(_val_) * sizeof(const char *),	\
	.is_array = true,					\
	.is_string = true,					\
	{ .pointer = { .str = _val_ } },			\
}

#define PROPERTY_ENTRY_INTEGER(_name_, _type_, _val_)	\
(struct property_entry) {				\
	.name = _name_,					\
	.length = sizeof(_type_),			\
	.is_string = false,				\
	{ .value = { ._type_##_data = _val_ } },	\
}

#define PROPERTY_ENTRY_U8(_name_, _val_)		\
	PROPERTY_ENTRY_INTEGER(_name_, u8, _val_)
#define PROPERTY_ENTRY_U16(_name_, _val_)		\
	PROPERTY_ENTRY_INTEGER(_name_, u16, _val_)
#define PROPERTY_ENTRY_U32(_name_, _val_)		\
	PROPERTY_ENTRY_INTEGER(_name_, u32, _val_)
#define PROPERTY_ENTRY_U64(_name_, _val_)		\
	PROPERTY_ENTRY_INTEGER(_name_, u64, _val_)

#define PROPERTY_ENTRY_STRING(_name_, _val_)		\
(struct property_entry) {				\
	.name = _name_,					\
	.length = sizeof(const char *),			\
	.is_string = true,				\
	{ .value = { .str = _val_ } },			\
}

#define PROPERTY_ENTRY_BOOL(_name_)		\
(struct property_entry) {			\
	.name = _name_,				\
}

struct property_entry *
property_entries_dup(const struct property_entry *properties);

void property_entries_free(const struct property_entry *properties);

int device_add_properties(struct device *dev,
			  const struct property_entry *properties);
void device_remove_properties(struct device *dev);

bool device_dma_supported(struct device *dev);

enum dev_dma_attr device_get_dma_attr(struct device *dev);

int device_get_phy_mode(struct device *dev);

void *device_get_mac_address(struct device *dev, char *addr, int alen);

struct fwnode_handle *fwnode_graph_get_next_endpoint(
	const struct fwnode_handle *fwnode, struct fwnode_handle *prev);
struct fwnode_handle *
fwnode_graph_get_port_parent(const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_graph_get_remote_port_parent(
	const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_graph_get_remote_port(
	const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_graph_get_remote_endpoint(
	const struct fwnode_handle *fwnode);
struct fwnode_handle *
fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port,
			     u32 endpoint);

#define fwnode_graph_for_each_endpoint(fwnode, child)			\
	for (child = NULL;						\
	     (child = fwnode_graph_get_next_endpoint(fwnode, child)); )

int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
				struct fwnode_endpoint *endpoint);

#endif /* _LINUX_PROPERTY_H_ */
Commit	Line	Data
b31384fa RW	1	/*
	2	* property.h - Unified device property interface.
	3	*
	4	* Copyright (C) 2014, Intel Corporation
	5	* Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
	6	* Mika Westerberg <mika.westerberg@linux.intel.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#ifndef _LINUX_PROPERTY_H_
	14	#define _LINUX_PROPERTY_H_
	15
ce793486	16	#include <linux/fwnode.h>
b31384fa RW	17	#include <linux/types.h>
	18
	19	struct device;
	20
	21	enum dev_prop_type {
	22	DEV_PROP_U8,
	23	DEV_PROP_U16,
	24	DEV_PROP_U32,
	25	DEV_PROP_U64,
	26	DEV_PROP_STRING,
	27	DEV_PROP_MAX,
	28	};
	29
1b9863c6 SS	30	enum dev_dma_attr {
	31	DEV_DMA_NOT_SUPPORTED,
	32	DEV_DMA_NON_COHERENT,
	33	DEV_DMA_COHERENT,
	34	};
	35
e44bb0cb SA	36	struct fwnode_handle dev_fwnode(struct device dev);
e44bb0cb SA	37
b31384fa RW	38	bool device_property_present(struct device dev, const char propname);
	39	int device_property_read_u8_array(struct device dev, const char propname,
	40	u8 *val, size_t nval);
	41	int device_property_read_u16_array(struct device dev, const char propname,
	42	u16 *val, size_t nval);
	43	int device_property_read_u32_array(struct device dev, const char propname,
	44	u32 *val, size_t nval);
	45	int device_property_read_u64_array(struct device dev, const char propname,
	46	u64 *val, size_t nval);
	47	int device_property_read_string_array(struct device dev, const char propname,
	48	const char **val, size_t nval);
	49	int device_property_read_string(struct device dev, const char propname,
	50	const char **val);
3f5c8d31 MW	51	int device_property_match_string(struct device *dev,
3f5c8d31 MW	52	const char propname, const char string);
b31384fa	53
37ba983c SA	54	bool fwnode_device_is_available(const struct fwnode_handle *fwnode);
	55	bool fwnode_property_present(const struct fwnode_handle *fwnode,
	56	const char *propname);
	57	int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode,
8a0662d9 RW	58	const char propname, u8 val,
8a0662d9 RW	59	size_t nval);
37ba983c	60	int fwnode_property_read_u16_array(const struct fwnode_handle *fwnode,
8a0662d9 RW	61	const char propname, u16 val,
8a0662d9 RW	62	size_t nval);
37ba983c	63	int fwnode_property_read_u32_array(const struct fwnode_handle *fwnode,
8a0662d9 RW	64	const char propname, u32 val,
8a0662d9 RW	65	size_t nval);
37ba983c	66	int fwnode_property_read_u64_array(const struct fwnode_handle *fwnode,
8a0662d9 RW	67	const char propname, u64 val,
8a0662d9 RW	68	size_t nval);
37ba983c	69	int fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
8a0662d9 RW	70	const char propname, const char *val,
8a0662d9 RW	71	size_t nval);
37ba983c	72	int fwnode_property_read_string(const struct fwnode_handle *fwnode,
8a0662d9	73	const char propname, const char *val);
37ba983c	74	int fwnode_property_match_string(const struct fwnode_handle *fwnode,
3f5c8d31	75	const char propname, const char string);
3e3119d3 SA	76	int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
	77	const char prop, const char nargs_prop,
	78	unsigned int nargs, unsigned int index,
	79	struct fwnode_reference_args *args);
8a0662d9	80
37ba983c SA	81	struct fwnode_handle fwnode_get_parent(const struct fwnode_handle fwnode);
	82	struct fwnode_handle *fwnode_get_next_parent(
	83	struct fwnode_handle *fwnode);
	84	struct fwnode_handle *fwnode_get_next_child_node(
	85	const struct fwnode_handle fwnode, struct fwnode_handle child);
34055190 MW	86
	87	#define fwnode_for_each_child_node(fwnode, child) \
	88	for (child = fwnode_get_next_child_node(fwnode, NULL); child; \
	89	child = fwnode_get_next_child_node(fwnode, child))
afaf26fd	90
37ba983c SA	91	struct fwnode_handle *device_get_next_child_node(
37ba983c SA	92	struct device dev, struct fwnode_handle child);
8a0662d9	93
1d656fb7 AS	94	#define device_for_each_child_node(dev, child) \
1d656fb7 AS	95	for (child = device_get_next_child_node(dev, NULL); child; \
8a0662d9 RW	96	child = device_get_next_child_node(dev, child))
8a0662d9 RW	97
37ba983c SA	98	struct fwnode_handle *fwnode_get_named_child_node(
37ba983c SA	99	const struct fwnode_handle fwnode, const char childname);
613e9721 AT	100	struct fwnode_handle device_get_named_child_node(struct device dev,
	101	const char *childname);
	102
cf89a31c	103	struct fwnode_handle fwnode_handle_get(struct fwnode_handle fwnode);
8a0662d9 RW	104	void fwnode_handle_put(struct fwnode_handle *fwnode);
	105
	106	unsigned int device_get_child_node_count(struct device *dev);
	107
b31384fa RW	108	static inline bool device_property_read_bool(struct device *dev,
	109	const char *propname)
	110	{
	111	return device_property_present(dev, propname);
	112	}
	113
	114	static inline int device_property_read_u8(struct device *dev,
	115	const char propname, u8 val)
	116	{
	117	return device_property_read_u8_array(dev, propname, val, 1);
	118	}
	119
	120	static inline int device_property_read_u16(struct device *dev,
	121	const char propname, u16 val)
	122	{
	123	return device_property_read_u16_array(dev, propname, val, 1);
	124	}
	125
	126	static inline int device_property_read_u32(struct device *dev,
	127	const char propname, u32 val)
	128	{
	129	return device_property_read_u32_array(dev, propname, val, 1);
	130	}
	131
	132	static inline int device_property_read_u64(struct device *dev,
	133	const char propname, u64 val)
	134	{
	135	return device_property_read_u64_array(dev, propname, val, 1);
	136	}
	137
37ba983c	138	static inline bool fwnode_property_read_bool(const struct fwnode_handle *fwnode,
8a0662d9 RW	139	const char *propname)
	140	{
	141	return fwnode_property_present(fwnode, propname);
	142	}
	143
37ba983c	144	static inline int fwnode_property_read_u8(const struct fwnode_handle *fwnode,
8a0662d9 RW	145	const char propname, u8 val)
	146	{
	147	return fwnode_property_read_u8_array(fwnode, propname, val, 1);
	148	}
	149
37ba983c	150	static inline int fwnode_property_read_u16(const struct fwnode_handle *fwnode,
8a0662d9 RW	151	const char propname, u16 val)
	152	{
	153	return fwnode_property_read_u16_array(fwnode, propname, val, 1);
	154	}
	155
37ba983c	156	static inline int fwnode_property_read_u32(const struct fwnode_handle *fwnode,
8a0662d9 RW	157	const char propname, u32 val)
	158	{
	159	return fwnode_property_read_u32_array(fwnode, propname, val, 1);
	160	}
	161
37ba983c	162	static inline int fwnode_property_read_u64(const struct fwnode_handle *fwnode,
8a0662d9 RW	163	const char propname, u64 val)
	164	{
	165	return fwnode_property_read_u64_array(fwnode, propname, val, 1);
	166	}
	167
16ba08d5 RW	168	/**
	169	* struct property_entry - "Built-in" device property representation.
	170	* @name: Name of the property.
318a1971	171	* @length: Length of data making up the value.
66586bab AS	172	* @is_array: True when the property is an array.
	173	* @is_string: True when property is a string.
	174	* @pointer: Pointer to the property (an array of items of the given type).
	175	* @value: Value of the property (when it is a single item of the given type).
16ba08d5 RW	176	*/
	177	struct property_entry {
	178	const char *name;
318a1971	179	size_t length;
66586bab AS	180	bool is_array;
66586bab AS	181	bool is_string;
16ba08d5	182	union {
66586bab	183	union {
9426998c DT	184	const void *raw_data;
	185	const u8 *u8_data;
	186	const u16 *u16_data;
	187	const u32 *u32_data;
	188	const u64 *u64_data;
	189	const char * const *str;
66586bab AS	190	} pointer;
	191	union {
	192	unsigned long long raw_data;
	193	u8 u8_data;
	194	u16 u16_data;
	195	u32 u32_data;
	196	u64 u64_data;
	197	const char *str;
	198	} value;
	199	};
16ba08d5 RW	200	};
16ba08d5 RW	201
d76eebfa AM	202	/*
	203	* Note: the below four initializers for the anonymous union are carefully
	204	* crafted to avoid gcc-4.4.4's problems with initialization of anon unions
	205	* and structs.
	206	*/
	207
a85f4204	208	#define PROPERTY_ENTRY_INTEGER_ARRAY(_name_, _type_, _val_) \
839d2e5d	209	(struct property_entry) { \
a85f4204 HK	210	.name = _name_, \
	211	.length = ARRAY_SIZE(_val_) * sizeof(_type_), \
	212	.is_array = true, \
d76eebfa	213	.is_string = false, \
37aa7271	214	{ .pointer = { ._type_##_data = _val_ } }, \
a85f4204 HK	215	}
	216
	217	#define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_) \
	218	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u8, _val_)
	219	#define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_) \
	220	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u16, _val_)
	221	#define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_) \
	222	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, _val_)
	223	#define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_) \
	224	PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u64, _val_)
	225
	226	#define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_) \
839d2e5d	227	(struct property_entry) { \
a85f4204 HK	228	.name = _name_, \
	229	.length = ARRAY_SIZE(_val_) * sizeof(const char *), \
	230	.is_array = true, \
	231	.is_string = true, \
d76eebfa	232	{ .pointer = { .str = _val_ } }, \
a85f4204 HK	233	}
	234
	235	#define PROPERTY_ENTRY_INTEGER(_name_, _type_, _val_) \
839d2e5d	236	(struct property_entry) { \
a85f4204 HK	237	.name = _name_, \
a85f4204 HK	238	.length = sizeof(_type_), \
d76eebfa AM	239	.is_string = false, \
d76eebfa AM	240	{ .value = { ._type_##_data = _val_ } }, \
a85f4204 HK	241	}
	242
	243	#define PROPERTY_ENTRY_U8(_name_, _val_) \
	244	PROPERTY_ENTRY_INTEGER(_name_, u8, _val_)
	245	#define PROPERTY_ENTRY_U16(_name_, _val_) \
	246	PROPERTY_ENTRY_INTEGER(_name_, u16, _val_)
	247	#define PROPERTY_ENTRY_U32(_name_, _val_) \
	248	PROPERTY_ENTRY_INTEGER(_name_, u32, _val_)
	249	#define PROPERTY_ENTRY_U64(_name_, _val_) \
	250	PROPERTY_ENTRY_INTEGER(_name_, u64, _val_)
	251
	252	#define PROPERTY_ENTRY_STRING(_name_, _val_) \
839d2e5d	253	(struct property_entry) { \
a85f4204	254	.name = _name_, \
bf29dc0e	255	.length = sizeof(const char *), \
a85f4204	256	.is_string = true, \
aace7367	257	{ .value = { .str = _val_ } }, \
a85f4204 HK	258	}
	259
	260	#define PROPERTY_ENTRY_BOOL(_name_) \
839d2e5d	261	(struct property_entry) { \
a85f4204 HK	262	.name = _name_, \
	263	}
	264
2d479e1f DT	265	struct property_entry *
	266	property_entries_dup(const struct property_entry *properties);
	267
	268	void property_entries_free(const struct property_entry *properties);
	269
f4d05266	270	int device_add_properties(struct device *dev,
bec84da8	271	const struct property_entry *properties);
f4d05266	272	void device_remove_properties(struct device *dev);
16ba08d5	273
e5e55864 SS	274	bool device_dma_supported(struct device *dev);
	275
	276	enum dev_dma_attr device_get_dma_attr(struct device *dev);
	277
4c96b7dc JL	278	int device_get_phy_mode(struct device *dev);
	279
	280	void device_get_mac_address(struct device dev, char *addr, int alen);
	281
07bb80d4	282	struct fwnode_handle *fwnode_graph_get_next_endpoint(
37ba983c	283	const struct fwnode_handle fwnode, struct fwnode_handle prev);
6a71d8d7	284	struct fwnode_handle *
37ba983c	285	fwnode_graph_get_port_parent(const struct fwnode_handle *fwnode);
07bb80d4	286	struct fwnode_handle *fwnode_graph_get_remote_port_parent(
37ba983c	287	const struct fwnode_handle *fwnode);
07bb80d4	288	struct fwnode_handle *fwnode_graph_get_remote_port(
37ba983c	289	const struct fwnode_handle *fwnode);
07bb80d4	290	struct fwnode_handle *fwnode_graph_get_remote_endpoint(
37ba983c SA	291	const struct fwnode_handle *fwnode);
	292	struct fwnode_handle *
	293	fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port,
	294	u32 endpoint);
07bb80d4	295
5e4b1b70 SA	296	#define fwnode_graph_for_each_endpoint(fwnode, child) \
	297	for (child = NULL; \
	298	(child = fwnode_graph_get_next_endpoint(fwnode, child)); )
	299
37ba983c	300	int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
2bd5452d SA	301	struct fwnode_endpoint *endpoint);
2bd5452d SA	302
b31384fa	303	#endif /* _LINUX_PROPERTY_H_ */