Now that we have support for per-plane alpha in the core, let's use it.

Acked-by: Boris Brezillon <boris.brezil...@bootlin.com>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime.rip...@bootlin.com>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h    | 13 +---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 89 ++----------------
 2 files changed, 14 insertions(+), 88 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h 
b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
index ab32d5b268d2..60c937f42114 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
@@ -299,7 +299,6 @@ struct atmel_hlcdc_layer {
 struct atmel_hlcdc_plane {
        struct drm_plane base;
        struct atmel_hlcdc_layer layer;
-       struct atmel_hlcdc_plane_properties *properties;
 };
 
 static inline struct atmel_hlcdc_plane *
@@ -346,18 +345,6 @@ struct atmel_hlcdc_dc_desc {
 };
 
 /**
- * Atmel HLCDC Plane properties.
- *
- * This structure stores plane property definitions.
- *
- * @alpha: alpha blending (or transparency) property
- * @rotation: rotation property
- */
-struct atmel_hlcdc_plane_properties {
-       struct drm_property *alpha;
-};
-
-/**
  * Atmel HLCDC Display Controller.
  *
  * @desc: HLCDC Display Controller description
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c 
b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index e18800ed7cd1..73c875db45f4 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -31,7 +31,6 @@
  * @src_y: y buffer position
  * @src_w: buffer width
  * @src_h: buffer height
- * @alpha: alpha blending of the plane
  * @disc_x: x discard position
  * @disc_y: y discard position
  * @disc_w: discard width
@@ -54,8 +53,6 @@ struct atmel_hlcdc_plane_state {
        uint32_t src_w;
        uint32_t src_h;
 
-       u8 alpha;
-
        int disc_x;
        int disc_y;
        int disc_w;
@@ -385,7 +382,7 @@ atmel_hlcdc_plane_update_general_settings(struct 
atmel_hlcdc_plane *plane,
                        cfg |= ATMEL_HLCDC_LAYER_LAEN;
                else
                        cfg |= ATMEL_HLCDC_LAYER_GAEN |
-                              ATMEL_HLCDC_LAYER_GA(state->alpha);
+                              ATMEL_HLCDC_LAYER_GA(state->base.alpha >> 8);
        }
 
        if (state->disc_h && state->disc_w)
@@ -553,7 +550,7 @@ atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state 
*c_state)
 
                if (!ovl_s->fb ||
                    ovl_s->fb->format->has_alpha ||
-                   ovl_state->alpha != 255)
+                   ovl_s->alpha != DRM_BLEND_ALPHA_OPAQUE)
                        continue;
 
                /* TODO: implement a smarter hidden area detection */
@@ -829,51 +826,18 @@ static void atmel_hlcdc_plane_destroy(struct drm_plane *p)
        drm_plane_cleanup(p);
 }
 
-static int atmel_hlcdc_plane_atomic_set_property(struct drm_plane *p,
-                                                struct drm_plane_state *s,
-                                                struct drm_property *property,
-                                                uint64_t val)
-{
-       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
-       struct atmel_hlcdc_plane_properties *props = plane->properties;
-       struct atmel_hlcdc_plane_state *state =
-                       drm_plane_state_to_atmel_hlcdc_plane_state(s);
-
-       if (property == props->alpha)
-               state->alpha = val;
-       else
-               return -EINVAL;
-
-       return 0;
-}
-
-static int atmel_hlcdc_plane_atomic_get_property(struct drm_plane *p,
-                                       const struct drm_plane_state *s,
-                                       struct drm_property *property,
-                                       uint64_t *val)
-{
-       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
-       struct atmel_hlcdc_plane_properties *props = plane->properties;
-       const struct atmel_hlcdc_plane_state *state =
-               container_of(s, const struct atmel_hlcdc_plane_state, base);
-
-       if (property == props->alpha)
-               *val = state->alpha;
-       else
-               return -EINVAL;
-
-       return 0;
-}
-
-static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane,
-                               struct atmel_hlcdc_plane_properties *props)
+static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane)
 {
        const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc;
 
        if (desc->type == ATMEL_HLCDC_OVERLAY_LAYER ||
-           desc->type == ATMEL_HLCDC_CURSOR_LAYER)
-               drm_object_attach_property(&plane->base.base,
-                                          props->alpha, 255);
+           desc->type == ATMEL_HLCDC_CURSOR_LAYER) {
+               int ret;
+
+               ret = drm_plane_create_alpha_property(&plane->base);
+               if (ret)
+                       return ret;
+       }
 
        if (desc->layout.xstride && desc->layout.pstride) {
                int ret;
@@ -988,8 +952,8 @@ static void atmel_hlcdc_plane_reset(struct drm_plane *p)
                        return;
                }
 
-               state->alpha = 255;
                p->state = &state->base;
+               p->state->alpha = DRM_BLEND_ALPHA_OPAQUE;
                p->state->plane = p;
        }
 }
@@ -1042,13 +1006,10 @@ static const struct drm_plane_funcs layer_plane_funcs = 
{
        .reset = atmel_hlcdc_plane_reset,
        .atomic_duplicate_state = atmel_hlcdc_plane_atomic_duplicate_state,
        .atomic_destroy_state = atmel_hlcdc_plane_atomic_destroy_state,
-       .atomic_set_property = atmel_hlcdc_plane_atomic_set_property,
-       .atomic_get_property = atmel_hlcdc_plane_atomic_get_property,
 };
 
 static int atmel_hlcdc_plane_create(struct drm_device *dev,
-                                   const struct atmel_hlcdc_layer_desc *desc,
-                                   struct atmel_hlcdc_plane_properties *props)
+                                   const struct atmel_hlcdc_layer_desc *desc)
 {
        struct atmel_hlcdc_dc *dc = dev->dev_private;
        struct atmel_hlcdc_plane *plane;
@@ -1060,7 +1021,6 @@ static int atmel_hlcdc_plane_create(struct drm_device 
*dev,
                return -ENOMEM;
 
        atmel_hlcdc_layer_init(&plane->layer, desc, dc->hlcdc->regmap);
-       plane->properties = props;
 
        if (desc->type == ATMEL_HLCDC_BASE_LAYER)
                type = DRM_PLANE_TYPE_PRIMARY;
@@ -1081,7 +1041,7 @@ static int atmel_hlcdc_plane_create(struct drm_device 
*dev,
                             &atmel_hlcdc_layer_plane_helper_funcs);
 
        /* Set default property values*/
-       ret = atmel_hlcdc_plane_init_properties(plane, props);
+       ret = atmel_hlcdc_plane_init_properties(plane);
        if (ret)
                return ret;
 
@@ -1090,34 +1050,13 @@ static int atmel_hlcdc_plane_create(struct drm_device 
*dev,
        return 0;
 }
 
-static struct atmel_hlcdc_plane_properties *
-atmel_hlcdc_plane_create_properties(struct drm_device *dev)
-{
-       struct atmel_hlcdc_plane_properties *props;
-
-       props = devm_kzalloc(dev->dev, sizeof(*props), GFP_KERNEL);
-       if (!props)
-               return ERR_PTR(-ENOMEM);
-
-       props->alpha = drm_property_create_range(dev, 0, "alpha", 0, 255);
-       if (!props->alpha)
-               return ERR_PTR(-ENOMEM);
-
-       return props;
-}
-
 int atmel_hlcdc_create_planes(struct drm_device *dev)
 {
        struct atmel_hlcdc_dc *dc = dev->dev_private;
-       struct atmel_hlcdc_plane_properties *props;
        const struct atmel_hlcdc_layer_desc *descs = dc->desc->layers;
        int nlayers = dc->desc->nlayers;
        int i, ret;
 
-       props = atmel_hlcdc_plane_create_properties(dev);
-       if (IS_ERR(props))
-               return PTR_ERR(props);
-
        dc->dscrpool = dmam_pool_create("atmel-hlcdc-dscr", dev->dev,
                                sizeof(struct atmel_hlcdc_dma_channel_dscr),
                                sizeof(u64), 0);
@@ -1130,7 +1069,7 @@ int atmel_hlcdc_create_planes(struct drm_device *dev)
                    descs[i].type != ATMEL_HLCDC_CURSOR_LAYER)
                        continue;
 
-               ret = atmel_hlcdc_plane_create(dev, &descs[i], props);
+               ret = atmel_hlcdc_plane_create(dev, &descs[i]);
                if (ret)
                        return ret;
        }
-- 
git-series 0.9.1
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