Unlike we previously thought, the per-pixel alpha is just as broken on the
A20 as it is on the A10. Remove the quirk that says we can use it.

Cc: Paul Kocialkowski <paul.kocialkow...@bootlin.com>
Fixes: dcf496a6a608 ("drm/sun4i: sun4i: Introduce a quirk for lowest plane 
alpha support")
Signed-off-by: Maxime Ripard <max...@cerno.tech>
---
 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 6d0f0526515f..24574bef28f9 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -994,7 +994,6 @@ static const struct sun4i_backend_quirks 
sun6i_backend_quirks = {
 
 static const struct sun4i_backend_quirks sun7i_backend_quirks = {
        .needs_output_muxing = true,
-       .supports_lowest_plane_alpha = true,
 };
 
 static const struct sun4i_backend_quirks sun8i_a33_backend_quirks = {
-- 
2.26.2

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