[PATCH 04/23] drm/msm/mdp5: Fix zpos initial value mismatch

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While the mdp5_plane_install_properties() function calls
drm_plane_create_zpos_property() with an initial value of 1,
mdp5_plane_reset() will force it to another value depending on the plane
type.

Fix the discrepancy by setting the initial zpos value to the same value
in the drm_plane_create_zpos_property() call.

Cc: freedreno@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-arm-msm@xxxxxxxxxxxxxxx
Cc: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Cc: Rob Clark <robdclark@xxxxxxxxx>
Cc: Sean Paul <sean@xxxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
index c6b69afcbac8..d60982f4bd11 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
@@ -48,6 +48,8 @@ static void mdp5_plane_destroy(struct drm_plane *plane)
 static void mdp5_plane_install_properties(struct drm_plane *plane,
 		struct drm_mode_object *obj)
 {
+	unsigned int zpos;
+
 	drm_plane_create_rotation_property(plane,
 					   DRM_MODE_ROTATE_0,
 					   DRM_MODE_ROTATE_0 |
@@ -59,7 +61,12 @@ static void mdp5_plane_install_properties(struct drm_plane *plane,
 			BIT(DRM_MODE_BLEND_PIXEL_NONE) |
 			BIT(DRM_MODE_BLEND_PREMULTI) |
 			BIT(DRM_MODE_BLEND_COVERAGE));
-	drm_plane_create_zpos_property(plane, 1, 1, 255);
+
+	if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+		zpos = STAGE_BASE;
+	else
+		zpos = STAGE0 + drm_plane_index(plane);
+	drm_plane_create_zpos_property(plane, zpos, 1, 255);
 }
 
 static void
-- 
2.34.1




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