[PATCH 4/7] drm/msm/mdp5: add support for alpha/blend_mode properties

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Tue May 25 13:13:13 UTC 2021


Hook alpha and pixel blend mode support to be exported as proper DRM
plane properties. This allows using this functionality from the
userspace.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
index 90cd825df16b..9c678e336e7a 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
@@ -91,6 +91,11 @@ static void mdp5_plane_install_properties(struct drm_plane *plane,
 	INSTALL_RANGE_PROPERTY(zpos, ZPOS, 1, 255, 1);
 
 	mdp5_plane_install_rotation_property(dev, plane);
+	drm_plane_create_alpha_property(plane);
+	drm_plane_create_blend_mode_property(plane,
+			BIT(DRM_MODE_BLEND_PIXEL_NONE) |
+			BIT(DRM_MODE_BLEND_PREMULTI) |
+			BIT(DRM_MODE_BLEND_COVERAGE));
 
 #undef INSTALL_RANGE_PROPERTY
 #undef INSTALL_ENUM_PROPERTY
-- 
2.30.2



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