[PATCH v2 0/2] drm/imx: ipuv3-plane: support underlay plane

[Michael Tretter]

The IPUv3 overlay plane may be placed over or under the primary plane.
This series allows user space tools to properly detect that the overlay
plane may be used as an underlay.

The first patch removes the assumption that the primary plane has the
default zpos 0 and the overlay plane has zpos 1. This allows changing
the zpos more freely.

The second patch changes the default zpos of the planes. The primary
plane always has the fixed zpos 1, which allows the overlay plane with
zpos 0 to 2 to be placed relative to this fixed primary plane.

Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
---
Changes in v2:
- Simplify check for primary plane
- Rephrase commit message of Patch 2
- Link to v1: https://patch.msgid.link/20260216-drm-imx-underlay-plane-v1-0-2dcbd1fd4ef5@pengutronix.de

---
Michael Tretter (2):
      drm/imx: ipuv3-plane: decouple zpos from plane type
      drm/imx: ipuv3-plane: support underlay plane

 drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)
---
base-commit: 20e0c197802c545db220157fafd567a10f2b7672
change-id: 20260216-drm-imx-underlay-plane-460cbc9dd3ca

Best regards,
-- 
Michael Tretter <m.tretter at pengutronix.de>