devicetree: add DT_FOREACH_PROP_ELEM(node_id, prop, fn)
It can be convenient to "iterate" over the elements of a property, in
the same way it is convenient to "iterate" over enabled instances.
Add a new macro for doing this, along with a DT_INST_FOREACH_PROP_ELEM
variant.
This is likely to be more convenient than UTIL_LISTIFY or FOR_EACH in
some situations because:
- it handles inputs of any length
- compiler error messages will be shorter and more self-contained
- it is easier to use with phandle-array type properties, which
require more complicated macro boilerplate when used with
util_macro.h APIs
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
4 files changed
