[PATCH v2 16/22] drm/sti: plane: Remove redundant zpos initialisation

[Maxime Ripard <maxime@cerno.tech>]

The sti KMS driver will call drm_plane_create_zpos_property() with an
init value depending on the plane type.

Since the initial value wasn't carried over in the state, the driver had
to set it again in sti_plane_reset().
However, the helpers have been adjusted to set it properly at reset, so
this is not needed anymore.

Reviewed-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Philippe Cornu <philippe.cornu@foss.st.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/sti/sti_cursor.c | 2 +-
 drivers/gpu/drm/sti/sti_gdp.c    | 2 +-
 drivers/gpu/drm/sti/sti_hqvdp.c  | 2 +-
 drivers/gpu/drm/sti/sti_plane.c  | 6 ------
 drivers/gpu/drm/sti/sti_plane.h  | 1 -
 5 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 1d6051b4f6fe..414c9973aa6d 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -351,7 +351,7 @@ static const struct drm_plane_funcs sti_cursor_plane_helpers_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
 	.destroy = drm_plane_cleanup,
-	.reset = sti_plane_reset,
+	.reset = drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 	.late_register = sti_cursor_late_register,
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index d1a35d97bc45..3db3768a3241 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -905,7 +905,7 @@ static const struct drm_plane_funcs sti_gdp_plane_helpers_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
 	.destroy = drm_plane_cleanup,
-	.reset = sti_plane_reset,
+	.reset = drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 	.late_register = sti_gdp_late_register,
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 3c61ba8b43e0..2201a50353eb 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1283,7 +1283,7 @@ static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
 	.disable_plane = drm_atomic_helper_disable_plane,
 	.destroy = drm_plane_cleanup,
-	.reset = sti_plane_reset,
+	.reset = drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 	.late_register = sti_hqvdp_late_register,
diff --git a/drivers/gpu/drm/sti/sti_plane.c b/drivers/gpu/drm/sti/sti_plane.c
index 3da4a46df2f2..173409cdb99e 100644
--- a/drivers/gpu/drm/sti/sti_plane.c
+++ b/drivers/gpu/drm/sti/sti_plane.c
@@ -112,12 +112,6 @@ static int sti_plane_get_default_zpos(enum drm_plane_type type)
 	return 0;
 }
 
-void sti_plane_reset(struct drm_plane *plane)
-{
-	drm_atomic_helper_plane_reset(plane);
-	plane->state->zpos = sti_plane_get_default_zpos(plane->type);
-}
-
 static void sti_plane_attach_zorder_property(struct drm_plane *drm_plane,
 					     enum drm_plane_type type)
 {
diff --git a/drivers/gpu/drm/sti/sti_plane.h b/drivers/gpu/drm/sti/sti_plane.h
index 065ffffbfb4a..8e33e629d9b0 100644
--- a/drivers/gpu/drm/sti/sti_plane.h
+++ b/drivers/gpu/drm/sti/sti_plane.h
@@ -81,5 +81,4 @@ void sti_plane_update_fps(struct sti_plane *plane,
 
 void sti_plane_init_property(struct sti_plane *plane,
 			     enum drm_plane_type type);
-void sti_plane_reset(struct drm_plane *plane);
 #endif
-- 
2.35.1