docs: add kernel-doc modules documentation

Place kernel-doc modules documentation at Linux Kernel docs.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <88ac2d82a45718c4e27aefac831586a71204ebf2.1768838938.git.mchehab+huawei@kernel.org>

Author: mchehab

Documentation/tools/index.rst

@@ -12,6 +12,7 @@ more additions are needed here:
 
    rtla/index
    rv/index
+   python
 
 .. only::  subproject and html
 

Documentation/tools/kdoc.rst

@@ -0,0 +1,12 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==================
+Kernel-doc modules
+==================
+
+.. toctree::
+   :maxdepth: 2
+
+   kdoc_parser
+   kdoc_output
+   kdoc_ancillary

Documentation/tools/kdoc_ancillary.rst

@@ -0,0 +1,46 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Ancillary classes
+=================
+
+Argparse formatter class
+========================
+
+.. automodule:: lib.python.kdoc.enrich_formatter
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Regular expression class handler
+================================
+
+.. automodule:: lib.python.kdoc.kdoc_re
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+
+Chinese, Japanese and Korean variable fonts handler
+===================================================
+
+.. automodule:: lib.python.kdoc.latex_fonts
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Kernel C file include logic
+===========================
+
+.. automodule:: lib.python.kdoc.parse_data_structs
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Python version ancillary methods
+================================
+
+.. automodule:: lib.python.kdoc.python_version
+   :members:
+   :show-inheritance:
+   :undoc-members:

Documentation/tools/kdoc_output.rst

@@ -0,0 +1,14 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+Kernel-doc output stage
+=======================
+
+Output handler for man pages and ReST
+=====================================
+
+.. automodule:: lib.python.kdoc.kdoc_output
+   :members:
+   :show-inheritance:
+   :undoc-members:
+

Documentation/tools/kdoc_parser.rst

@@ -0,0 +1,29 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+Kernel-doc parser stage
+=======================
+
+File handler classes
+====================
+
+.. automodule:: lib.python.kdoc.kdoc_files
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Parsed item data class
+======================
+
+.. automodule:: lib.python.kdoc.kdoc_item
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Parser classes and methods
+==========================
+
+.. automodule:: lib.python.kdoc.kdoc_parser
+   :members:
+   :show-inheritance:
+   :undoc-members:

Documentation/tools/python.rst

@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================
+Python libraries
+================
+
+.. toctree::
+   :maxdepth: 4
+
+   kdoc