diff options
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/ofnode.h | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index fa72bb9eff..a53cffbed9 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -55,6 +55,23 @@ static inline void *ofnode_to_fdt(ofnode node) } /** + * ofnode_to_offset() - convert an ofnode to a flat DT offset + * + * This cannot be called if the reference contains a node pointer. + * + * @node: Reference containing offset (possibly invalid) + * Return: DT offset (can be -1) + */ +static inline int ofnode_to_offset(ofnode node) +{ +#ifdef OF_CHECKS + if (of_live_active()) + return -1; +#endif + return node.of_offset; +} + +/** * ofnode_to_np() - convert an ofnode to a live DT node pointer * * This cannot be called if the reference contains an offset. @@ -72,20 +89,22 @@ static inline struct device_node *ofnode_to_np(ofnode node) } /** - * ofnode_to_offset() - convert an ofnode to a flat DT offset + * noffset_to_ofnode() - convert a DT offset to an ofnode * - * This cannot be called if the reference contains a node pointer. - * - * @node: Reference containing offset (possibly invalid) - * Return: DT offset (can be -1) + * @other_node: Node in the same tree to use as a reference + * @of_offset: DT offset (either valid, or -1) + * Return: reference to the associated DT offset */ -static inline int ofnode_to_offset(ofnode node) +static inline ofnode noffset_to_ofnode(ofnode other_node, int of_offset) { -#ifdef OF_CHECKS + ofnode node; + if (of_live_active()) - return -1; -#endif - return node.of_offset; + node.np = NULL; + else + node.of_offset = of_offset; + + return node; } /** @@ -1175,8 +1194,9 @@ ofnode ofnode_by_compatible(ofnode from, const char *compat); * Find the next node after @from that has a @propname with a value * @propval and a length @proplen. * - * @from: ofnode to start from (use ofnode_null() to start at the - * beginning) + * @from: ofnode to start from. Use ofnode_null() to start at the + * beginning, or the return value from oftree_root() to start at the first + * child of the root * @propname: property name to check * @propval: property value to search for * @proplen: length of the value in propval |