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-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index 824ef3ce5de0..423e3cd7b9c9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -2208,16 +2208,31 @@ int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
if (res)
return res;
- if (plane->type == DRM_PLANE_TYPE_OVERLAY &&
- plane_cap && plane_cap->per_pixel_alpha) {
+ /* TODO: Check which blend modes are supported in DCE-generation
+ * planes, i.e. DC_PLANE_TYPE_DCE_RGB/UNDERLAY and expose blend mode
+ * property accordingly.
+ */
+ if ((plane->type == DRM_PLANE_TYPE_OVERLAY ||
+ plane->type == DRM_PLANE_TYPE_PRIMARY) &&
+ plane_cap && plane_cap->per_pixel_alpha &&
+ plane_cap->type == DC_PLANE_TYPE_DCN_UNIVERSAL) {
unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) |
BIT(DRM_MODE_BLEND_PREMULTI) |
BIT(DRM_MODE_BLEND_COVERAGE);
- drm_plane_create_alpha_property(plane);
drm_plane_create_blend_mode_property(plane, blend_caps);
+
+ if (plane->type == DRM_PLANE_TYPE_OVERLAY)
+ drm_plane_create_alpha_property(plane);
}
+ /* Cursor color format is set to CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA
+ * by default, so only advertise DRM_MODE_BLEND_PREMULTI blend mode for
+ * this type of plane.
+ */
+ if (plane->type == DRM_PLANE_TYPE_CURSOR)
+ drm_plane_create_blend_mode_property(plane, BIT(DRM_MODE_BLEND_PREMULTI));
+
if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
/*
* Allow OVERLAY planes to be used as underlays by assigning an