d5f9415b04
This is like of_property_for_each_{string,u32} but loops over a list of phandles instead of strings or ints. Returns the node the handle points to as that's generally more useful than the handle value itself. Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
795 lines
22 KiB
C
795 lines
22 KiB
C
#ifndef __OF_H
|
|
#define __OF_H
|
|
|
|
#include <fdt.h>
|
|
#include <errno.h>
|
|
#include <linux/types.h>
|
|
#include <linux/list.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
/* Default string compare functions */
|
|
#define of_compat_cmp(s1, s2, l) strcasecmp((s1), (s2))
|
|
#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
|
|
#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
|
|
|
|
#define OF_BAD_ADDR ((u64)-1)
|
|
|
|
typedef u32 phandle;
|
|
|
|
struct property {
|
|
char *name;
|
|
int length;
|
|
void *value;
|
|
struct list_head list;
|
|
};
|
|
|
|
struct device_node {
|
|
char *name;
|
|
char *full_name;
|
|
|
|
struct list_head properties;
|
|
struct device_node *parent;
|
|
struct list_head children;
|
|
struct list_head parent_list;
|
|
struct list_head list;
|
|
phandle phandle;
|
|
};
|
|
|
|
struct of_device_id {
|
|
char *compatible;
|
|
const void *data;
|
|
};
|
|
|
|
#define MAX_PHANDLE_ARGS 8
|
|
struct of_phandle_args {
|
|
struct device_node *np;
|
|
int args_count;
|
|
uint32_t args[MAX_PHANDLE_ARGS];
|
|
};
|
|
|
|
#define OF_MAX_RESERVE_MAP 16
|
|
struct of_reserve_map {
|
|
uint64_t start[OF_MAX_RESERVE_MAP];
|
|
uint64_t end[OF_MAX_RESERVE_MAP];
|
|
int num_entries;
|
|
};
|
|
|
|
int of_add_reserve_entry(resource_size_t start, resource_size_t end);
|
|
struct of_reserve_map *of_get_reserve_map(void);
|
|
void of_clean_reserve_map(void);
|
|
void fdt_add_reserve_map(void *fdt);
|
|
|
|
struct device_d;
|
|
struct driver_d;
|
|
|
|
int of_fix_tree(struct device_node *);
|
|
|
|
int of_match(struct device_d *dev, struct driver_d *drv);
|
|
|
|
int of_add_initrd(struct device_node *root, resource_size_t start,
|
|
resource_size_t end);
|
|
|
|
struct fdt_header *fdt_get_tree(void);
|
|
|
|
struct fdt_header *of_get_fixed_tree(struct device_node *node);
|
|
|
|
/* Helper to read a big number; size is in cells (not bytes) */
|
|
static inline u64 of_read_number(const __be32 *cell, int size)
|
|
{
|
|
u64 r = 0;
|
|
while (size--)
|
|
r = (r << 32) | be32_to_cpu(*(cell++));
|
|
return r;
|
|
}
|
|
|
|
/* Helper to write a big number; size is in cells (not bytes) */
|
|
static inline void of_write_number(void *__cell, u64 val, int size)
|
|
{
|
|
__be32 *cell = __cell;
|
|
|
|
while (size--) {
|
|
cell[size] = cpu_to_be32(val);
|
|
val >>= 32;
|
|
}
|
|
}
|
|
|
|
void of_print_property(const void *data, int len);
|
|
void of_print_cmdline(struct device_node *root);
|
|
|
|
void of_print_nodes(struct device_node *node, int indent);
|
|
int of_probe(void);
|
|
int of_parse_dtb(struct fdt_header *fdt);
|
|
struct device_node *of_unflatten_dtb(const void *fdt);
|
|
|
|
struct cdev;
|
|
|
|
#ifdef CONFIG_OFTREE
|
|
extern int of_n_addr_cells(struct device_node *np);
|
|
extern int of_n_size_cells(struct device_node *np);
|
|
|
|
extern struct property *of_find_property(const struct device_node *np,
|
|
const char *name, int *lenp);
|
|
extern const void *of_get_property(const struct device_node *np,
|
|
const char *name, int *lenp);
|
|
|
|
extern int of_set_property(struct device_node *node, const char *p,
|
|
const void *val, int len, int create);
|
|
extern struct property *of_new_property(struct device_node *node,
|
|
const char *name, const void *data, int len);
|
|
extern void of_delete_property(struct property *pp);
|
|
|
|
extern struct device_node *of_find_node_by_name(struct device_node *from,
|
|
const char *name);
|
|
extern struct device_node *of_find_node_by_path_from(struct device_node *from,
|
|
const char *path);
|
|
extern struct device_node *of_find_node_by_path(const char *path);
|
|
extern struct device_node *of_find_node_by_phandle(phandle phandle);
|
|
extern struct device_node *of_find_node_by_phandle_from(phandle phandle,
|
|
struct device_node *root);
|
|
extern struct device_node *of_find_node_by_type(struct device_node *from,
|
|
const char *type);
|
|
extern struct device_node *of_find_compatible_node(struct device_node *from,
|
|
const char *type, const char *compat);
|
|
extern const struct of_device_id *of_match_node(
|
|
const struct of_device_id *matches, const struct device_node *node);
|
|
extern struct device_node *of_find_matching_node_and_match(
|
|
struct device_node *from,
|
|
const struct of_device_id *matches,
|
|
const struct of_device_id **match);
|
|
extern struct device_node *of_find_node_with_property(
|
|
struct device_node *from, const char *prop_name);
|
|
|
|
extern struct device_node *of_new_node(struct device_node *parent,
|
|
const char *name);
|
|
extern struct device_node *of_create_node(struct device_node *root,
|
|
const char *path);
|
|
extern void of_delete_node(struct device_node *node);
|
|
|
|
extern int of_machine_is_compatible(const char *compat);
|
|
extern int of_device_is_compatible(const struct device_node *device,
|
|
const char *compat);
|
|
extern int of_device_is_available(const struct device_node *device);
|
|
|
|
extern struct device_node *of_get_parent(const struct device_node *node);
|
|
extern struct device_node *of_get_next_available_child(
|
|
const struct device_node *node, struct device_node *prev);
|
|
struct device_node *of_get_next_child(const struct device_node *node,
|
|
struct device_node *prev);
|
|
extern int of_get_child_count(const struct device_node *parent);
|
|
extern int of_get_available_child_count(const struct device_node *parent);
|
|
extern struct device_node *of_get_child_by_name(const struct device_node *node,
|
|
const char *name);
|
|
|
|
extern int of_property_read_u32_index(const struct device_node *np,
|
|
const char *propname,
|
|
u32 index, u32 *out_value);
|
|
extern int of_property_read_u8_array(const struct device_node *np,
|
|
const char *propname, u8 *out_values, size_t sz);
|
|
extern int of_property_read_u16_array(const struct device_node *np,
|
|
const char *propname, u16 *out_values, size_t sz);
|
|
extern int of_property_read_u32_array(const struct device_node *np,
|
|
const char *propname,
|
|
u32 *out_values,
|
|
size_t sz);
|
|
extern int of_property_read_u64(const struct device_node *np,
|
|
const char *propname, u64 *out_value);
|
|
|
|
extern int of_property_read_string(struct device_node *np,
|
|
const char *propname,
|
|
const char **out_string);
|
|
extern int of_property_read_string_index(struct device_node *np,
|
|
const char *propname,
|
|
int index, const char **output);
|
|
extern int of_property_match_string(struct device_node *np,
|
|
const char *propname,
|
|
const char *string);
|
|
extern int of_property_count_strings(struct device_node *np,
|
|
const char *propname);
|
|
|
|
extern const __be32 *of_prop_next_u32(struct property *prop,
|
|
const __be32 *cur, u32 *pu);
|
|
extern const char *of_prop_next_string(struct property *prop, const char *cur);
|
|
|
|
extern int of_property_write_bool(struct device_node *np,
|
|
const char *propname, const bool value);
|
|
extern int of_property_write_u8_array(struct device_node *np,
|
|
const char *propname, const u8 *values,
|
|
size_t sz);
|
|
extern int of_property_write_u16_array(struct device_node *np,
|
|
const char *propname, const u16 *values,
|
|
size_t sz);
|
|
extern int of_property_write_u32_array(struct device_node *np,
|
|
const char *propname, const u32 *values,
|
|
size_t sz);
|
|
extern int of_property_write_u64_array(struct device_node *np,
|
|
const char *propname, const u64 *values,
|
|
size_t sz);
|
|
|
|
extern struct device_node *of_parse_phandle(const struct device_node *np,
|
|
const char *phandle_name,
|
|
int index);
|
|
extern struct device_node *of_parse_phandle_from(const struct device_node *np,
|
|
struct device_node *root,
|
|
const char *phandle_name,
|
|
int index);
|
|
extern int of_parse_phandle_with_args(const struct device_node *np,
|
|
const char *list_name, const char *cells_name, int index,
|
|
struct of_phandle_args *out_args);
|
|
extern int of_count_phandle_with_args(const struct device_node *np,
|
|
const char *list_name, const char *cells_name);
|
|
|
|
extern void of_alias_scan(void);
|
|
extern int of_alias_get_id(struct device_node *np, const char *stem);
|
|
extern const char *of_alias_get(struct device_node *np);
|
|
extern int of_modalias_node(struct device_node *node, char *modalias, int len);
|
|
|
|
extern struct device_node *of_get_root_node(void);
|
|
extern int of_set_root_node(struct device_node *node);
|
|
|
|
extern struct device_d *of_platform_device_create(struct device_node *np,
|
|
struct device_d *parent);
|
|
extern int of_platform_populate(struct device_node *root,
|
|
const struct of_device_id *matches,
|
|
struct device_d *parent);
|
|
extern struct device_d *of_find_device_by_node(struct device_node *np);
|
|
extern struct device_d *of_device_enable_and_register(struct device_node *np);
|
|
extern struct device_d *of_device_enable_and_register_by_name(const char *name);
|
|
|
|
struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node);
|
|
int of_parse_partitions(struct cdev *cdev, struct device_node *node);
|
|
int of_device_is_stdout_path(struct device_d *dev);
|
|
const char *of_get_model(void);
|
|
void *of_flatten_dtb(struct device_node *node);
|
|
int of_add_memory(struct device_node *node, bool dump);
|
|
void of_add_memory_bank(struct device_node *node, bool dump, int r,
|
|
u64 base, u64 size);
|
|
struct device_d *of_find_device_by_node_path(const char *path);
|
|
#define OF_FIND_PATH_FLAGS_BB 1 /* return .bb device if available */
|
|
int of_find_path(struct device_node *node, const char *propname, char **outpath, unsigned flags);
|
|
int of_find_path_by_node(struct device_node *node, char **outpath, unsigned flags);
|
|
int of_register_fixup(int (*fixup)(struct device_node *, void *), void *context);
|
|
int of_unregister_fixup(int (*fixup)(struct device_node *, void *), void *context);
|
|
struct device_node *of_find_node_by_alias(struct device_node *root,
|
|
const char *alias);
|
|
struct device_node *of_find_node_by_path_or_alias(struct device_node *root,
|
|
const char *str);
|
|
#else
|
|
static inline int of_parse_partitions(struct cdev *cdev,
|
|
struct device_node *node)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int of_device_is_stdout_path(struct device_d *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline const char *of_get_model(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void *of_flatten_dtb(struct device_node *node)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_add_memory(struct device_node *node, bool dump)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline struct device_node *of_get_root_node(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_set_root_node(struct device_node *node)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_n_addr_cells(struct device_node *np)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int of_n_size_cells(struct device_node *np)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline struct device_node *of_get_parent(const struct device_node *node)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_get_next_available_child(
|
|
const struct device_node *node, struct device_node *prev)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_get_next_child(const struct device_node *node,
|
|
struct device_node *prev)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_get_child_count(const struct device_node *parent)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_get_available_child_count(const struct device_node *parent)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct device_node *of_get_child_by_name(
|
|
const struct device_node *node, const char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct property *of_find_property(const struct device_node *np,
|
|
const char *name,
|
|
int *lenp)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline const void *of_get_property(const struct device_node *np,
|
|
const char *name, int *lenp)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_set_property(struct device_node *node, const char *p,
|
|
const void *val, int len, int create)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct property *of_new_property(struct device_node *node,
|
|
const char *name, const void *data, int len)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void of_delete_property(struct property *pp)
|
|
{
|
|
}
|
|
|
|
static inline int of_property_read_u32_index(const struct device_node *np,
|
|
const char *propname, u32 index, u32 *out_value)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_u8_array(const struct device_node *np,
|
|
const char *propname, u8 *out_values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_u16_array(const struct device_node *np,
|
|
const char *propname, u16 *out_values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_u32_array(const struct device_node *np,
|
|
const char *propname, u32 *out_values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_u64(const struct device_node *np,
|
|
const char *propname, u64 *out_value)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_string(struct device_node *np,
|
|
const char *propname, const char **out_string)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_read_string_index(struct device_node *np,
|
|
const char *propname, int index, const char **output)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_match_string(struct device_node *np,
|
|
const char *propname, const char *string)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_count_strings(struct device_node *np,
|
|
const char *propname)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline const __be32 *of_prop_next_u32(struct property *prop,
|
|
const __be32 *cur, u32 *pu)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline const char *of_prop_next_string(struct property *prop,
|
|
const char *cur)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_property_write_bool(struct device_node *np,
|
|
const char *propname, const bool value)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_write_u8_array(struct device_node *np,
|
|
const char *propname, const u8 *values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_write_u16_array(struct device_node *np,
|
|
const char *propname, const u16 *values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_write_u32_array(struct device_node *np,
|
|
const char *propname, const u32 *values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_property_write_u64_array(struct device_node *np,
|
|
const char *propname, const u64 *values, size_t sz)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct device_node *of_parse_phandle(const struct device_node *np,
|
|
const char *phandle_name, int index)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_parse_phandle_from(const struct device_node *np,
|
|
struct device_node *root,
|
|
const char *phandle_name, int index)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_parse_phandle_with_args(const struct device_node *np,
|
|
const char *list_name, const char *cells_name, int index,
|
|
struct of_phandle_args *out_args)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_count_phandle_with_args(const struct device_node *np,
|
|
const char *list_name, const char *cells_name)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_path_from(
|
|
struct device_node *from, const char *path)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_path(const char *path)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_name(struct device_node *from,
|
|
const char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_phandle(phandle phandle)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_phandle_from(phandle phandle,
|
|
struct device_node *root)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_compatible_node(
|
|
struct device_node *from,
|
|
const char *type,
|
|
const char *compat)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline const struct of_device_id *of_match_node(
|
|
const struct of_device_id *matches, const struct device_node *node)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_matching_node_and_match(
|
|
struct device_node *from,
|
|
const struct of_device_id *matches,
|
|
const struct of_device_id **match)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_with_property(
|
|
struct device_node *from, const char *prop_name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_new_node(struct device_node *parent,
|
|
const char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_create_node(struct device_node *root,
|
|
const char *path)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void of_delete_node(struct device_node *node)
|
|
{
|
|
}
|
|
|
|
static inline int of_machine_is_compatible(const char *compat)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int of_device_is_compatible(const struct device_node *device,
|
|
const char *compat)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int of_device_is_available(const struct device_node *device)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void of_alias_scan(void)
|
|
{
|
|
}
|
|
|
|
static inline int of_alias_get_id(struct device_node *np, const char *stem)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline const char *of_alias_get(struct device_node *np)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_modalias_node(struct device_node *node, char *modalias,
|
|
int len)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int of_platform_populate(struct device_node *root,
|
|
const struct of_device_id *matches,
|
|
struct device_d *parent)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct device_d *of_find_device_by_node(struct device_node *np)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_d *of_device_enable_and_register(
|
|
struct device_node *np)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_d *of_device_enable_and_register_by_name(
|
|
const char *name)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_register_fixup(int (*fixup)(struct device_node *, void *),
|
|
void *context)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_alias(
|
|
struct device_node *root, const char *alias)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline struct device_node *of_find_node_by_path_or_alias(
|
|
struct device_node *root, const char *str)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#define for_each_node_by_name(dn, name) \
|
|
for (dn = of_find_node_by_name(NULL, name); dn; \
|
|
dn = of_find_node_by_name(dn, name))
|
|
#define for_each_node_by_name_from(dn, root, name) \
|
|
for (dn = of_find_node_by_name(root, name); dn; \
|
|
dn = of_find_node_by_name(dn, name))
|
|
/* Iterate over compatible nodes starting from given root */
|
|
#define for_each_compatible_node_from(dn, root, type, compatible) \
|
|
for (dn = of_find_compatible_node(root, type, compatible); dn; \
|
|
dn = of_find_compatible_node(dn, type, compatible))
|
|
/* Iterate over compatible nodes in default device tree */
|
|
#define for_each_compatible_node(dn, type, compatible) \
|
|
for_each_compatible_node_from(dn, NULL, type, compatible)
|
|
static inline struct device_node *of_find_matching_node(
|
|
struct device_node *from,
|
|
const struct of_device_id *matches)
|
|
{
|
|
return of_find_matching_node_and_match(from, matches, NULL);
|
|
}
|
|
#define for_each_matching_node(dn, matches) \
|
|
for (dn = of_find_matching_node(NULL, matches); dn; \
|
|
dn = of_find_matching_node(dn, matches))
|
|
#define for_each_matching_node_and_match(dn, matches, match) \
|
|
for (dn = of_find_matching_node_and_match(NULL, matches, match); \
|
|
dn; dn = of_find_matching_node_and_match(dn, matches, match))
|
|
#define for_each_node_with_property(dn, prop_name) \
|
|
for (dn = of_find_node_with_property(NULL, prop_name); dn; \
|
|
dn = of_find_node_with_property(dn, prop_name))
|
|
|
|
#define for_each_child_of_node_safe(parent, tmp, child) \
|
|
list_for_each_entry_safe(child, tmp, &parent->children, parent_list)
|
|
#define for_each_child_of_node(parent, child) \
|
|
list_for_each_entry(child, &parent->children, parent_list)
|
|
#define for_each_available_child_of_node(parent, child) \
|
|
for (child = of_get_next_available_child(parent, NULL); child != NULL; \
|
|
child = of_get_next_available_child(parent, child))
|
|
|
|
/**
|
|
* of_property_read_bool - Findfrom a property
|
|
* @np: device node from which the property value is to be read.
|
|
* @propname: name of the property to be searched.
|
|
*
|
|
* Search for a property in a device node.
|
|
* Returns true if the property exist false otherwise.
|
|
*/
|
|
static inline bool of_property_read_bool(const struct device_node *np,
|
|
const char *propname)
|
|
{
|
|
struct property *prop = of_find_property(np, propname, NULL);
|
|
|
|
return prop ? true : false;
|
|
}
|
|
|
|
static inline int of_property_read_u8(const struct device_node *np,
|
|
const char *propname,
|
|
u8 *out_value)
|
|
{
|
|
return of_property_read_u8_array(np, propname, out_value, 1);
|
|
}
|
|
|
|
static inline int of_property_read_u16(const struct device_node *np,
|
|
const char *propname,
|
|
u16 *out_value)
|
|
{
|
|
return of_property_read_u16_array(np, propname, out_value, 1);
|
|
}
|
|
|
|
static inline int of_property_read_u32(const struct device_node *np,
|
|
const char *propname,
|
|
u32 *out_value)
|
|
{
|
|
return of_property_read_u32_array(np, propname, out_value, 1);
|
|
}
|
|
|
|
/*
|
|
* struct property *prop;
|
|
* const __be32 *p;
|
|
* u32 u;
|
|
*
|
|
* of_property_for_each_u32(np, "propname", prop, p, u)
|
|
* printk("U32 value: %x\n", u);
|
|
*/
|
|
#define of_property_for_each_u32(np, propname, prop, p, u) \
|
|
for (prop = of_find_property(np, propname, NULL), \
|
|
p = of_prop_next_u32(prop, NULL, &u); \
|
|
p; \
|
|
p = of_prop_next_u32(prop, p, &u))
|
|
|
|
/*
|
|
* struct property *prop;
|
|
* const char *s;
|
|
*
|
|
* of_property_for_each_string(np, "propname", prop, s)
|
|
* printk("String value: %s\n", s);
|
|
*/
|
|
#define of_property_for_each_string(np, propname, prop, s) \
|
|
for (prop = of_find_property(np, propname, NULL), \
|
|
s = of_prop_next_string(prop, NULL); \
|
|
s; \
|
|
s = of_prop_next_string(prop, s))
|
|
|
|
/*
|
|
* struct device_node *n;
|
|
*
|
|
* of_property_for_each_phandle(np, root, "propname", n)
|
|
* printk("phandle points to: %s\n", n->full_name);
|
|
*/
|
|
#define of_property_for_each_phandle(np, root, propname, n) \
|
|
for (int _i = 0; \
|
|
(n = of_parse_phandle_from(np, root, propname, _i));\
|
|
_i++)
|
|
|
|
static inline int of_property_write_u8(struct device_node *np,
|
|
const char *propname, u8 value)
|
|
{
|
|
return of_property_write_u8_array(np, propname, &value, 1);
|
|
}
|
|
|
|
static inline int of_property_write_u16(struct device_node *np,
|
|
const char *propname, u16 value)
|
|
{
|
|
return of_property_write_u16_array(np, propname, &value, 1);
|
|
}
|
|
|
|
static inline int of_property_write_u32(struct device_node *np,
|
|
const char *propname,
|
|
u32 value)
|
|
{
|
|
return of_property_write_u32_array(np, propname, &value, 1);
|
|
}
|
|
|
|
static inline int of_property_write_u64(struct device_node *np,
|
|
const char *propname,
|
|
u64 value)
|
|
{
|
|
return of_property_write_u64_array(np, propname, &value, 1);
|
|
}
|
|
|
|
extern const struct of_device_id of_default_bus_match_table[];
|
|
|
|
int of_device_enable(struct device_node *node);
|
|
int of_device_enable_path(const char *path);
|
|
int of_device_disable(struct device_node *node);
|
|
int of_device_disable_path(const char *path);
|
|
|
|
phandle of_get_tree_max_phandle(struct device_node *root);
|
|
phandle of_node_create_phandle(struct device_node *node);
|
|
int of_set_property_to_child_phandle(struct device_node *node, char *prop_name);
|
|
|
|
static inline struct device_node *of_find_root_node(struct device_node *node)
|
|
{
|
|
while (node->parent)
|
|
node = node->parent;
|
|
|
|
return node;
|
|
}
|
|
#endif /* __OF_H */
|