On 2/7/22 5:35 PM, Maxime Ripard wrote:
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() and rcar_du_vsp_plane_reset().

Hi Maxime,
and many thanks for your patches.

Great you added Alain as he is now the drm/sti maintainer (Maintainers file should be updated soon)

Minor typo in the commit message as rcar_du_vsp_plane_reset() is not part of drm/sti

Reviewed-by: Philippe Cornu <philippe.co...@foss.st.com>

Philippe :-)


However, the helpers have been adjusted to set it properly at reset, so
this is not needed anymore.

Cc: Alain Volmat <alain.vol...@foss.st.com>
Signed-off-by: Maxime Ripard <max...@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

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