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drm: xlnx: zynqmp_dpsub: Add global alpha support

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The graphics plane has a global alpha setting. Expose it through the
plane's alpha property.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
2021-03-07 02:56:58 +02:00
parent e06926ecc3
commit 650f12042b
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/xlnx/zynqmp_disp.c
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@@ -1164,7 +1164,8 @@ zynqmp_disp_plane_atomic_disable(struct drm_plane *plane,
zynqmp_disp_layer_disable(layer);
if (zynqmp_disp_layer_is_gfx(layer))
zynqmp_disp_blend_set_global_alpha(layer->disp, false, 0);
zynqmp_disp_blend_set_global_alpha(layer->disp, false,
plane->state->alpha >> 8);
}
static void
@@ -1195,7 +1196,8 @@ zynqmp_disp_plane_atomic_update(struct drm_plane *plane,
zynqmp_disp_layer_update(layer, new_state);
if (zynqmp_disp_layer_is_gfx(layer))
zynqmp_disp_blend_set_global_alpha(layer->disp, true, 255);
zynqmp_disp_blend_set_global_alpha(layer->disp, true,
plane->state->alpha >> 8);
/* Enable or re-enable the plane is the format has changed. */
if (format_changed)
@@ -1249,6 +1251,9 @@ static int zynqmp_disp_create_planes(struct zynqmp_disp *disp)
drm_plane_helper_add(&layer->plane,
&zynqmp_disp_plane_helper_funcs);
if (zynqmp_disp_layer_is_gfx(layer))
drm_plane_create_alpha_property(&layer->plane);
}
return 0;