diff options
Diffstat (limited to 'include/fdtdec.h')
-rw-r--r-- | include/fdtdec.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h index 84f07685268..0351a25a98a 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -117,6 +117,23 @@ int fdtdec_next_compatible(const void *blob, int node, enum fdt_compat_id id); /** + * Find the next compatible subnode for a peripheral. + * + * Do the first call with node set to the parent and depth = 0. This + * function will return the offset of the next compatible node. Next time + * you call this function, pass the node value returned last time, with + * depth unchanged, and the next node will be provided. + * + * @param blob FDT blob to use + * @param node Start node for search + * @param id Compatible ID to look for (enum fdt_compat_id) + * @param depthp Current depth (set to 0 before first call) + * @return offset of next compatible node, or -FDT_ERR_NOTFOUND if no more + */ +int fdtdec_next_compatible_subnode(const void *blob, int node, + enum fdt_compat_id id, int *depthp); + +/** * Look up an address property in a node and return it as an address. * The property must hold either one address with no trailing data or * one address with a length. This is only tested on 32-bit machines. |