testplan: Add testplan support for kms tests

Add testplan support for kms tests.
The documentation for kms tests will be like:

	/**
	 * TEST: Test foo.
	 * Category: Display
	 *
	 * SUBTEST: bar
	 * Description: bar description
	 * Test category: functionality test
	 * Run type: BAT
	 * Functionality: dp
	 * Mega feature: DP 2.0
	 */

V2: - Empty 'extra_args' to avoid failures for missing docs
    - Use wildcards instead of adding full list of files

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>

docs/testplan/meson.build

@@ -7,6 +7,7 @@ rst2pdf = find_program('rst2pdf', required: false)
 stylesheet = join_paths(meson.current_source_dir(), 'testplan.css')
 
 xe_test_config = join_paths(source_root, 'tests', 'xe', 'xe_test_config.json')
+kms_test_config = join_paths(source_root, 'tests', 'kms_test_config.json')
 
 check_testlist = []
 if build_tests
@@ -22,8 +23,9 @@ else
 	doc_dependencies = []
 endif
 
-test_dict = { 'xe_tests':
-		{ 'input': xe_test_config, 'extra_args': check_testlist }
+test_dict = {
+	      'xe_tests': { 'input': xe_test_config, 'extra_args': check_testlist },
+	      'kms_tests': { 'input': kms_test_config, 'extra_args': [] }
 	    }
 
 foreach testplan, fields: test_dict

tests/kms_test_config.json

+{
+    "description": "JSON file to be used to parse KMS documentation",
+    "files": [ "chamelium/kms_*.c", "i915/kms_*.c", "kms_*.c" ],
+    "fields": {
+        "Category": {
+            "_properties_": {
+                "description": "Contains the major group for the tested functionality 'Display'"
+            }
+        },
+        "Mega feature": {
+            "_properties_": {
+                "description": "Contains the mega feature for end to end use case, e.g. the 'PSR' feature."
+            },
+            "Functionality": {
+                "_properties_": {
+                    "description": "Groups tests on buckets containg more detailed functionality"
+                }
+            }
+        },
+        "Run type": {
+            "_properties_": {
+                "description": "Defines what category of testlist it belongs"
+            }
+        },
+        "Test category": {
+            "_properties_": {
+                "description": "Defines the test category. Usually used at subtest level."
+            }
+        },
+        "Description" : {
+            "_properties_": {
+                "description": "Provides a description for the test/subtest."
+            }
+        }
+    }
+}