Unverified Commit ad25d073 authored Nov 23, 2018 by Paul Kocialkowski Committed by Maxime Ripard Nov 27, 2018

drm/sun4i: Add TODO comment about supporting scaling with the backend

The backend allows integer-only scaling but can handle alpha components,
unlike the frontend. It could be useful to add support for this
eventually, so add a short TODO comment describing the situation.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-4-paul.kocialkowski@bootlin.com

parent b79a3a97

drivers/gpu/drm/sun4i/sun4i_backend.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -426,6 +426,11 @@ static bool sun4i_backend_plane_uses_frontend(struct drm_plane_state *state)
		if (IS_ERR(backend->frontend))
		return false;

		/*
		* TODO: The backend alone allows 2x and 4x integer scaling, including
		* support for an alpha component (which the frontend doesn't support).
		* Use the backend directly instead of the frontend in this case.
		*/
		return sun4i_backend_plane_uses_scaler(state);
		}