diff options
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 89 |
1 files changed, 78 insertions, 11 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index eaf0e2a2b75c..959786f8f196 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -67,7 +67,7 @@ struct device_node { #endif }; -#define MAX_PHANDLE_ARGS 16 +#define MAX_PHANDLE_ARGS NR_FWNODE_REFERENCE_ARGS struct of_phandle_args { struct device_node *np; int args_count; @@ -301,6 +301,8 @@ extern struct device_node *of_get_compatible_child(const struct device_node *par const char *compatible); extern struct device_node *of_get_child_by_name(const struct device_node *node, const char *name); +extern struct device_node *of_get_available_child_by_name(const struct device_node *node, + const char *name); /* cache lookup */ extern struct device_node *of_find_next_cache_node(const struct device_node *); @@ -314,6 +316,12 @@ extern struct property *of_find_property(const struct device_node *np, extern bool of_property_read_bool(const struct device_node *np, const char *propname); extern int of_property_count_elems_of_size(const struct device_node *np, const char *propname, int elem_size); +extern int of_property_read_u8_index(const struct device_node *np, + const char *propname, + u32 index, u8 *out_value); +extern int of_property_read_u16_index(const struct device_node *np, + const char *propname, + u32 index, u16 *out_value); extern int of_property_read_u32_index(const struct device_node *np, const char *propname, u32 index, u32 *out_value); @@ -402,6 +410,8 @@ extern int of_alias_get_id(const struct device_node *np, const char *stem); extern int of_alias_get_highest_id(const char *stem); bool of_machine_compatible_match(const char *const *compats); +const struct of_device_id *of_machine_get_match(const struct of_device_id *matches); +const void *of_machine_get_match_data(const struct of_device_id *matches); /** * of_machine_is_compatible - Test root of device tree for a given compatible value @@ -416,6 +426,9 @@ static inline bool of_machine_is_compatible(const char *compat) return of_machine_compatible_match(compats); } +int of_machine_read_compatible(const char **compatible, unsigned int index); +int of_machine_read_model(const char **model); + extern int of_add_property(struct device_node *np, struct property *prop); extern int of_remove_property(struct device_node *np, struct property *prop); extern int of_update_property(struct device_node *np, struct property *newprop); @@ -545,6 +558,13 @@ static inline struct device_node *of_get_next_child( return NULL; } +static inline struct device_node *of_get_next_child_with_prefix( + const struct device_node *node, struct device_node *prev, + const char *prefix) +{ + return NULL; +} + static inline struct device_node *of_get_next_available_child( const struct device_node *node, struct device_node *prev) { @@ -578,6 +598,13 @@ static inline struct device_node *of_get_child_by_name( return NULL; } +static inline struct device_node *of_get_available_child_by_name( + const struct device_node *node, + const char *name) +{ + return NULL; +} + static inline int of_device_is_compatible(const struct device_node *device, const char *name) { @@ -627,6 +654,18 @@ static inline int of_property_count_elems_of_size(const struct device_node *np, return -ENOSYS; } +static inline int of_property_read_u8_index(const struct device_node *np, + const char *propname, u32 index, u8 *out_value) +{ + return -ENOSYS; +} + +static inline int of_property_read_u16_index(const struct device_node *np, + const char *propname, u32 index, u16 *out_value) +{ + return -ENOSYS; +} + static inline int of_property_read_u32_index(const struct device_node *np, const char *propname, u32 index, u32 *out_value) { @@ -815,6 +854,17 @@ static inline int of_machine_is_compatible(const char *compat) return 0; } +static inline int of_machine_read_compatible(const char **compatible, + unsigned int index) +{ + return -ENOSYS; +} + +static inline int of_machine_read_model(const char **model) +{ + return -ENOSYS; +} + static inline int of_add_property(struct device_node *np, struct property *prop) { return 0; @@ -830,6 +880,17 @@ static inline bool of_machine_compatible_match(const char *const *compats) return false; } +static inline const struct of_device_id *of_machine_get_match(const struct of_device_id *matches) +{ + return NULL; +} + +static inline const void * +of_machine_get_match_data(const struct of_device_id *matches) +{ + return NULL; +} + static inline bool of_console_check(const struct device_node *dn, const char *name, int index) { return false; @@ -908,12 +969,6 @@ static inline const void *of_device_get_match_data(const struct device *dev) #define of_node_cmp(s1, s2) strcasecmp((s1), (s2)) #endif -static inline int of_prop_val_eq(const struct property *p1, const struct property *p2) -{ - return p1->length == p2->length && - !memcmp(p1->value, p2->value, (size_t)p1->length); -} - #define for_each_property_of_node(dn, pp) \ for (pp = dn->properties; pp != NULL; pp = pp->next) @@ -935,6 +990,11 @@ static inline int of_numa_init(void) } #endif +static inline bool of_machine_device_match(const struct of_device_id *matches) +{ + return of_machine_get_match(matches) != NULL; +} + static inline struct device_node *of_find_matching_node( struct device_node *from, const struct of_device_id *matches) @@ -1115,7 +1175,7 @@ static inline bool of_phandle_args_equal(const struct of_phandle_args *a1, * Search for a property in a device node and count the number of u8 elements * in it. * - * Return: The number of elements on sucess, -EINVAL if the property does + * Return: The number of elements on success, -EINVAL if the property does * not exist or its length does not match a multiple of u8 and -ENODATA if the * property does not have a value. */ @@ -1134,7 +1194,7 @@ static inline int of_property_count_u8_elems(const struct device_node *np, * Search for a property in a device node and count the number of u16 elements * in it. * - * Return: The number of elements on sucess, -EINVAL if the property does + * Return: The number of elements on success, -EINVAL if the property does * not exist or its length does not match a multiple of u16 and -ENODATA if the * property does not have a value. */ @@ -1153,7 +1213,7 @@ static inline int of_property_count_u16_elems(const struct device_node *np, * Search for a property in a device node and count the number of u32 elements * in it. * - * Return: The number of elements on sucess, -EINVAL if the property does + * Return: The number of elements on success, -EINVAL if the property does * not exist or its length does not match a multiple of u32 and -ENODATA if the * property does not have a value. */ @@ -1172,7 +1232,7 @@ static inline int of_property_count_u32_elems(const struct device_node *np, * Search for a property in a device node and count the number of u64 elements * in it. * - * Return: The number of elements on sucess, -EINVAL if the property does + * Return: The number of elements on success, -EINVAL if the property does * not exist or its length does not match a multiple of u64 and -ENODATA if the * property does not have a value. */ @@ -1444,6 +1504,13 @@ static inline int of_property_read_s32(const struct device_node *np, #define for_each_compatible_node(dn, type, compatible) \ for (dn = of_find_compatible_node(NULL, type, compatible); dn; \ dn = of_find_compatible_node(dn, type, compatible)) + +#define for_each_compatible_node_scoped(dn, type, compatible) \ + for (struct device_node *dn __free(device_node) = \ + of_find_compatible_node(NULL, type, compatible); \ + dn; \ + dn = of_find_compatible_node(dn, type, compatible)) + #define for_each_matching_node(dn, matches) \ for (dn = of_find_matching_node(NULL, matches); dn; \ dn = of_find_matching_node(dn, matches)) |