diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_plane.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_plane.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediatek/mtk_plane.c index 1723d4333f37..7d2cb4e0fafa 100644 --- a/drivers/gpu/drm/mediatek/mtk_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_plane.c @@ -321,7 +321,7 @@ static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = { int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, enum drm_plane_type type, unsigned int supported_rotations, const u32 *formats, - size_t num_formats) + size_t num_formats, unsigned int plane_idx) { int err; @@ -338,6 +338,22 @@ int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, return err; } + /* + * The hardware does not support repositioning planes by muxing: their + * Z-position is infact fixed and the only way to change the actual + * order is to swap the contents of the entire register set of one + * overlay with another, which may be more expensive than desired. + * + * With no repositioning, the caller of this function guarantees that + * the plane_idx is correct. This means that, for example, the PRIMARY + * plane fed to this function will always have plane_idx zero. + */ + err = drm_plane_create_zpos_immutable_property(plane, plane_idx); + if (err) { + DRM_ERROR("Failed to create zpos property for plane %u\n", plane_idx); + return err; + } + if (supported_rotations) { err = drm_plane_create_rotation_property(plane, DRM_MODE_ROTATE_0, @@ -346,6 +362,17 @@ int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, DRM_INFO("Create rotation property failed\n"); } + err = drm_plane_create_alpha_property(plane); + if (err) + DRM_ERROR("failed to create property: alpha\n"); + + err = drm_plane_create_blend_mode_property(plane, + BIT(DRM_MODE_BLEND_PREMULTI) | + BIT(DRM_MODE_BLEND_COVERAGE) | + BIT(DRM_MODE_BLEND_PIXEL_NONE)); + if (err) + DRM_ERROR("failed to create property: blend_mode\n"); + drm_plane_helper_add(plane, &mtk_plane_helper_funcs); return 0; |