drm/sun4i: Drop hardcoded .possible_crtcs values from layers
To support multiple display pipelines, we would have multiple crtcs,
with one or more planes bound to them. Obviously having hardcoded
values for the drm_plane .possible_crtcs field is not going to work.
For primary and cursor planes, the value is set by
drm_crtc_init_with_planes. We just need to set it for overlay planes.
We also fix the value set for the RGB encoder, by referencing the
crtc set in sun4i_drv.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/drivers/gpu/drm/sun4i/sun4i_crtc.c b/drivers/gpu/drm/sun4i/sun4i_crtc.c
index 81dcd5e..9d6fd2f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
@@ -190,5 +190,14 @@ struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm)
scrtc->crtc.port = of_graph_get_port_by_id(drv->tcon->dev->of_node,
1);
+ /* Set possible_crtcs to this crtc for overlay planes */
+ for (i = 0; scrtc->layers[i]; i++) {
+ uint32_t possible_crtcs = BIT(drm_crtc_index(&scrtc->crtc));
+ struct sun4i_layer *layer = scrtc->layers[i];
+
+ if (layer->plane.type == DRM_PLANE_TYPE_OVERLAY)
+ layer->plane.possible_crtcs = possible_crtcs;
+ }
+
return scrtc;
}