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drm: xlnx: zynqmp_dpsub: Expose plane ordering to userspace

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While the DPSUB has a fixed plane order, it still makes sense to expose
it to userspace to avoid hardcoding assumptions. Do so by adding an
immutable zpos property to planes.

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 650f12042b
commit 8c772f0b2b
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/xlnx/zynqmp_disp.c
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@ -1252,6 +1252,7 @@ static int zynqmp_disp_create_planes(struct zynqmp_disp *disp)
drm_plane_helper_add(&layer->plane,
&zynqmp_disp_plane_helper_funcs);
drm_plane_create_zpos_immutable_property(&layer->plane, i);
if (zynqmp_disp_layer_is_gfx(layer))
drm_plane_create_alpha_property(&layer->plane);
}