[PATCH v2 2/2] drm/imx: ipuv3-plane: support underlay plane

[Philipp Zabel]

On Do, 2026-02-19 at 12:32 +0100, Michael Tretter wrote:
> The IPUv3 overlay plane may be placed over or under the primary plane.
> 
> Set the zpos of the primary to an immutable position of 1 to have the
> possibility to place the other plane underneath it.
> 
> Set the zpos of other planes (the overlay plane) to a mutable value
> between 0 (the lowest possible value of a zpos) and directly above the
> primary plane with the latter being the default.
> 
> Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>

Reviewed-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp