Any node which needs to generate defines from DTS must have a
"compatible" property, because the corresponding "constraint" is what
extract_dts_includes.py uses to match nodes with YAML files.
There are a few YAML files in the tree that list compatible as
"optional". Fix them.
Signed-off-by: Marti Bolivar <marti@opensourcefoundries.com>
According to yaml syntaxic rules, 'properties' described in dts
bindings yaml files could be seen as 'mapping'(key/value couple),
instead of 'series' (list of single elements).
yaml 'mappings' will then be converted by yaml python library as
python 'dict' which will ease treatment (instead of current list
as were before this commit).
Same treatment is applied to 'inherits'.
script extract_dts_inlcude is updated to take change of yaml_list
structre into account. This allows some code simplification. Largest
impact is yaml_collapse function which works now allow complete
overload method on all the attributes of a yaml nodes.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>