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| author | Simon Glass <sjg@chromium.org> | 2018-06-11 13:07:13 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-07-09 09:11:00 -0600 |
| commit | c60f671b65a8b336c3533fcf0f0ee45dff287ff7 (patch) | |
| tree | a7c4b6ace5eccc2a9f79d3eac7171b3418741c58 | |
| parent | c98ad4434c1a680915d10e5696e6bee9c81044d5 (diff) | |
| download | u-boot-c60f671b65a8b336c3533fcf0f0ee45dff287ff7.tar.gz | |
dm: core: Add a way to find an ofnode by compatible string
Add an ofnode_by_compatible() to allow iterating through ofnodes with a
given compatible string.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/core/ofnode.c | 12 | ||||
| -rw-r--r-- | include/dm/ofnode.h | 11 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index b2b02e4abf..29375397e0 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -729,3 +729,15 @@ int ofnode_device_is_compatible(ofnode node, const char *compat) ofnode_to_offset(node), compat); } + +ofnode ofnode_by_compatible(ofnode from, const char *compat) +{ + if (of_live_active()) { + return np_to_ofnode(of_find_compatible_node( + (struct device_node *)ofnode_to_np(from), NULL, + compat)); + } else { + return offset_to_ofnode(fdt_node_offset_by_compatible( + gd->fdt_blob, ofnode_to_offset(from), compat)); + } +} diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 61c42311f8..cd08a7e4d0 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -679,6 +679,17 @@ int ofnode_read_resource_byname(ofnode node, const char *name, struct resource *res); /** + * ofnode_by_compatible() - Find the next compatible node + * + * Find the next node after @from that is compatible with @compat + * + * @from: ofnode to start from (use ofnode_null() to start at the beginning) + * @compat: Compatible string to match + * @return ofnode found, or ofnode_null() if none + */ +ofnode ofnode_by_compatible(ofnode from, const char *compat); + +/** * ofnode_for_each_subnode() - iterate over all subnodes of a parent * * @node: child node (ofnode, lvalue) |