[PATCH 0/4] Add DU support for RZ/T2H and RZ/N2H SoCs

[Prabhakar <prabhakar.csengg@gmail.com>]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Hi All,

This series adds support for the Display Unit (DU) on the RZ/T2H
and RZ/N2H (R9A09G087) SoCs. The DU on these platforms is
functionally similar to the RZ/G2UL DU but includes some SoC
specific differences such as a single output port and explicit
DPI output enable control. The series includes the following
changes:
1. Add device tree bindings for the RZ/T2H and RZ/N2H DU variants,
   including a new compatible string and port property.
2. Make the DU reset control optional to allow probing on RZ/T2H
   where the DU does not have a reset line.
3. Move pixel clock validation logic to per-SoC constraints in
   rzg2l_du_device_info to accommodate different clock limits
   across SoCs.
4. Implement support for the RZ/T2H DU variant in the driver,
   including handling of the DPI output enable signal.

Patches are rebased on next-20260429 and apply on drm-next.

Cheers,
Prabhakar

Lad Prabhakar (4):
  dt-bindings: display: renesas,rzg2l-du: Add RZ/T2H and RZ/N2H support
  drm: renesas: rz-du: Make DU reset control optional for RZ/T2H support
  drm: renesas: rz-du: Move mode_valid logic to per-SoC clock limits
  drm: renesas: rz-du: Add support for RZ/T2H SoC

 .../bindings/display/renesas,rzg2l-du.yaml    | 24 +++++++++++++++++--
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c |  9 +++++--
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c  | 16 +++++++++++++
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h  | 14 +++++++++++
 .../gpu/drm/renesas/rz-du/rzg2l_du_encoder.c  |  6 ++++-
 .../gpu/drm/renesas/rz-du/rzg2l_du_encoder.h  |  2 ++
 6 files changed, 66 insertions(+), 5 deletions(-)

-- 
2.54.0