[igt-dev] [PATCH i-g-t] [i-g-t] tests/kms_plane_scaling: fb height to be multiplier of 4 for YUV 420 planar

[Vidya Srinivas]

For Gen9, GLK, CNL, GLV: Display WA 1106:
Display corruption/color shift observed when using NV12 with
270 rotation or 90 rotation + horizontal flip.
WA: NV12 with 270 rotation or 90 rotation + horizontal flip requires
the programmed plane height to be a multiple of 4.
Patch changes the NV12 buffer to 20x20 to maintain both
fb > min fb and also multiplier of 4

Signed-off-by: Uma Shankar <uma.shankar at intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas at intel.com>
---
 tests/kms_plane_scaling.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/kms_plane_scaling.c b/tests/kms_plane_scaling.c
index 36fcfc0..b94d785 100644
--- a/tests/kms_plane_scaling.c
+++ b/tests/kms_plane_scaling.c
@@ -132,7 +132,7 @@ static void check_scaling_pipe_plane_rot(data_t *d, igt_plane_t *plane,
 	/* create buffer in the range of  min and max source side limit.*/
 	width = height = 9;
 	if (pixel_format == DRM_FORMAT_NV12)
-		width = height = 17;
+		width = height = 20;
 	igt_create_color_fb(display->drm_fd, width, height,
 		       pixel_format, tiling, 0.0, 1.0, 0.0, &d->fb[0]);
 	igt_plane_set_fb(plane, &d->fb[0]);
-- 
2.7.4