[igt-dev] [i-g-t V3 64/82] tests/kms_plane_multiple: Document each subtest for testplan

[Bhanuprakash Modem <bhanuprakash.modem@intel.com>]

Add documentation for all kms tests which is used by IGT testplan
documentation.

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
---
 tests/kms_plane_multiple.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tests/kms_plane_multiple.c b/tests/kms_plane_multiple.c
index 7dd9d586d..6ee648b2d 100644
--- a/tests/kms_plane_multiple.c
+++ b/tests/kms_plane_multiple.c
@@ -22,6 +22,11 @@
  *
  */
 
+/**
+ * TEST: kms plane multiple
+ * Category: Display
+ * Description: Test atomic mode setting with multiple planes.
+ */
 #include "igt.h"
 #include "drmtest.h"
 #include <errno.h>
@@ -373,6 +378,34 @@ test_plane_position(data_t *data, enum pipe pipe, igt_output_t *output, uint64_t
 					n_planes, modifier);
 }
 
+/**
+ * SUBTEST: tiling-none
+ * Description: Check that the kernel handles atomic updates of multiple planes
+ *              correctly by changing their geometry and making sure the changes
+ *              are reflected immediately after each commit.
+ * Driver requirement: any
+ * Functionality: plane
+ * Mega feature: General Display Features
+ * Run type: FULL
+ * Test category: functionality test
+ *
+ * SUBTEST: tiling-%s
+ * Description: Check that the kernel handles atomic updates of multiple planes
+ *              correctly by changing their geometry and making sure the changes
+ *              are reflected immediately after each commit.
+ * Driver requirement: i915
+ * Functionality: plane
+ * Mega feature: General Display Features
+ * Run type: FULL
+ * Test category: functionality test
+ *
+ * arg[1]:
+ *
+ * @4:           4-tiling
+ * @x:           x-tiling
+ * @y:           y-tiling
+ * @yf:          yf-tiling
+ */
 static void run_test(data_t *data, uint64_t modifier)
 {
 	enum pipe pipe;
-- 
2.40.0