diff options
| author | Simon Glass <sjg@chromium.org> | 2014-09-04 16:27:24 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-09-10 12:59:59 -0600 |
| commit | aac07d49d00b4bc8ca3f4aca0f3ad26385fb1d37 (patch) | |
| tree | 5fd5a26caa1150bad11fb2d06e27d3f5a219dbf7 /include | |
| parent | addf9513d0b1a57062a8604330e8c0e822d9d214 (diff) | |
dm: fdt: Add a function to look up a chosen node
Within /chosen we may have a node which points to another node, similar
to how /aliases works. Add a helper function to do this lookup.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/fdtdec.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h index 856e6cf766..4f5aafb516 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -374,6 +374,18 @@ int fdtdec_get_alias_seq(const void *blob, const char *base, int node, */ int fdtdec_get_alias_node(const void *blob, const char *name); +/** + * Get the offset of the given chosen node + * + * This looks up a property in /chosen containing the path to another node, + * then finds the offset of that node. + * + * @param blob Device tree blob (if NULL, then error is returned) + * @param name Property name, e.g. "stdout-path" + * @return Node offset referred to by that chosen node, or -ve FDT_ERR_... + */ +int fdtdec_get_chosen_node(const void *blob, const char *name); + /* * Get the name for a compatible ID * |