| Message ID | 20231212121957.19231-9-shawn.sung@mediatek.com |
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From: Hsiao Chien Sung <shawn.sung@mediatek.com>
To: AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Chun-Kuang Hu <chunkuang.hu@kernel.org>,
CK Hu <ck.hu@mediatek.com>
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Subject: [PATCH v4 08/17] drm/mediatek: Support alpha blending in display
driver
Date: Tue, 12 Dec 2023 20:19:48 +0800
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|
| Series |
Support IGT in display driver
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Commit Message
Shawn Sung (宋孝謙)
Dec. 12, 2023, 12:19 p.m. UTC
Support alpha blending by adding correct blend mode and
alpha property in plane initialization.
Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_plane.c | 11 +++++++++++
1 file changed, 11 insertions(+)
Comments
Hi, Hsiao-chien: On Tue, 2023-12-12 at 20:19 +0800, Hsiao Chien Sung wrote: > Support alpha blending by adding correct blend mode and > alpha property in plane initialization. Reviewed-by: CK Hu <ck.hu@mediatek.com> > > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_drm_plane.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c > b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > index 9208f03b3f8c..dfd81172a940 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c > @@ -349,6 +349,17 @@ 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_P > REMULTI) | > + BIT(DRM_MODE_BLEND_C > OVERAGE) | > + BIT(DRM_MODE_BLEND_P > IXEL_NONE)); > + if (err) > + DRM_ERROR("failed to create property: blend_mode\n"); > + > drm_plane_helper_add(plane, &mtk_plane_helper_funcs); > > return 0;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c index 9208f03b3f8c..dfd81172a940 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c @@ -349,6 +349,17 @@ 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;