This allows RST documentation to do something like this:
See :dtcompatible:`vnd,foo` for more information.
This is transformed into a link to documentation for the "vnd,foo"
compatible.
Some devicetree compatibles may be handled by multiple bindings.
This can happen when the binding file is bus-dependent. Therefore, to
make this work, we need to change the way gen_devicetree_rest.py works
to ensure we have a good source of information for this compatible
regardless of how many bindings are associated with as follows:
- When only a single binding is associated with a compatible, the
:dtcompatible: link goes directly to the per-binding HTML page.
- When multiple bindings are associated with a compatible, this goes
to a new generated "disambiguation" page which links to all the
per-binding pages.
To avoid clashes, we stick the disambiguation pages into a
compatibles/ subdirectory of the generated bindings index root
directory.
Also reorganize the generated bindings output directory into
.../bindings/subdir/binding.rst files. For example,
dts/bindings/arm/arm,dtcm.yaml now gets its generated content in
.../bindings/arm/arm,dtcm.rst.
This brings the 'category' of binding (like 'sensor', 'i2c', etc.)
into the URL, which is a useful hint.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
e4c0783bfd