diff options
Diffstat (limited to 'include/dm/of_access.h')
| -rw-r--r-- | include/dm/of_access.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/dm/of_access.h b/include/dm/of_access.h index c556a18f7d..de740d4467 100644 --- a/include/dm/of_access.h +++ b/include/dm/of_access.h @@ -334,6 +334,25 @@ int of_read_u32_index(const struct device_node *np, const char *propname, int index, u32 *outp); /** + * of_read_u64_index() - Find and read a 64-bit value from a multi-value + * property + * + * @np: device node from which the property value is to be read. + * @propname: name of the property to be searched. + * @index: index of the u32 in the list of values + * @outp: pointer to return value, modified only if return value is 0. + * + * Search for a property in a device node and read a 64-bit value from + * it. + * + * Return: + * 0 on success, -EINVAL if the property does not exist, or -EOVERFLOW if the + * property data isn't large enough. + */ +int of_read_u64_index(const struct device_node *np, const char *propname, + int index, u64 *outp); + +/** * of_read_u64() - Find and read a 64-bit integer from a property * * Search for a property in a device node and read a 64-bit value from @@ -578,4 +597,22 @@ int of_write_prop(struct device_node *np, const char *propname, int len, int of_add_subnode(struct device_node *node, const char *name, int len, struct device_node **subnodep); +/** + * of_remove_property() - Remove a property from a node + * + * @np: Node to remove from + * @prop: Pointer to property to remove + * Return 0 if OK, -ENODEV if the property could not be found in the node + */ +int of_remove_property(struct device_node *np, struct property *prop); + +/** + * of_remove_node() - Remove a node from the tree + * + * @to_remove: Node to remove + * Return: 0 if OK, -EPERM if it is the root node (wWhich cannot be removed), + * -ENOENT if the tree is broken (to_remove is not a child of its parent) + */ +int of_remove_node(struct device_node *to_remove); + #endif |