[PATCH 1/2] drm/sun4i: backend: Support alpha property on lowest plane

[Chen-Yu Tsai]

On Tue, Jul 28, 2020 at 9:48 PM Maxime Ripard <maxime at cerno.tech> wrote:
>
> 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 at bootlin.com>
> Fixes: dcf496a6a608 ("drm/sun4i: sun4i: Introduce a quirk for lowest plane alpha support")
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>

Reviewed-by: Chen-Yu Tsai <wens at csie.org>

once the build break is fixed.