Unlike what we previously thought, only the per-pixel alpha is broken on
the lowest plane and the per-plane alpha isn't. Remove the check on the
alpha property being set on the lowest plane to reject a mode.
Cc: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
Fixes: dcf496a6a608 ("drm/sun4i: sun4i: Introduce a quirk for lowest plane alpha support")
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/gpu/drm/sun4i/sun4i_backend.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index 072ea113e6be..6d0f0526515f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -589,7 +589,6 @@ static int sun4i_backend_atomic_check(struct sunxi_engine *engine,
/* We can't have an alpha plane at the lowest position */
if (!backend->quirks->supports_lowest_plane_alpha &&
- (plane_states[0]->fb->format->has_alpha ||
(plane_states[0]->alpha != DRM_BLEND_ALPHA_OPAQUE)))
return -EINVAL;
--
2.26.2
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