The sun4i 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 sun4i_backend_layer_reset(). However, the helpers have been adjusted to set it properly at reset, so this is not needed anymore.
Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@lists.linux.dev Cc: Chen-Yu Tsai wens@csie.org Reviewed-by: Jernej Skrabec jernej.skrabec@gmail.com Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/sun4i/sun4i_layer.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c index 929e95f86b5b..6d43080791a0 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.c +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c @@ -18,7 +18,6 @@
static void sun4i_backend_layer_reset(struct drm_plane *plane) { - struct sun4i_layer *layer = plane_to_sun4i_layer(plane); struct sun4i_layer_state *state;
if (plane->state) { @@ -31,10 +30,8 @@ static void sun4i_backend_layer_reset(struct drm_plane *plane) }
state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state) { + if (state) __drm_atomic_helper_plane_reset(plane, &state->state); - plane->state->zpos = layer->id; - } }
static struct drm_plane_state * @@ -192,7 +189,8 @@ static const uint64_t sun4i_layer_modifiers[] = {
static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm, struct sun4i_backend *backend, - enum drm_plane_type type) + enum drm_plane_type type, + unsigned int id) { const uint64_t *modifiers = sun4i_layer_modifiers; const uint32_t *formats = sun4i_layer_formats; @@ -204,6 +202,7 @@ static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm, if (!layer) return ERR_PTR(-ENOMEM);
+ layer->id = id; layer->backend = backend;
if (IS_ERR_OR_NULL(backend->frontend)) { @@ -226,8 +225,8 @@ static struct sun4i_layer *sun4i_layer_init_one(struct drm_device *drm, &sun4i_backend_layer_helper_funcs);
drm_plane_create_alpha_property(&layer->plane); - drm_plane_create_zpos_property(&layer->plane, 0, 0, - SUN4I_BACKEND_NUM_LAYERS - 1); + drm_plane_create_zpos_property(&layer->plane, layer->id, + 0, SUN4I_BACKEND_NUM_LAYERS - 1);
return layer; } @@ -249,14 +248,13 @@ struct drm_plane **sun4i_layers_init(struct drm_device *drm, enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY : DRM_PLANE_TYPE_PRIMARY; struct sun4i_layer *layer;
- layer = sun4i_layer_init_one(drm, backend, type); + layer = sun4i_layer_init_one(drm, backend, type, i); if (IS_ERR(layer)) { dev_err(drm->dev, "Couldn't initialize %s plane\n", i ? "overlay" : "primary"); return ERR_CAST(layer); }
- layer->id = i; planes[i] = &layer->plane; }