[PATCH v9 0/3] Add i.MX91/93 parallel display support

[Marco Felsch]

Hi,

this patchset adds the driver, dt-bindings and dt integration required
to drive a parallel display on the i.MX93.

Since the i.MX91 register layout equals the one from the i.MX93, I added
the support for both but tested only the i.MX93 case.

This patchset depends on:
 - https://lore.kernel.org/all/20251201-v6-18-topic-imx93-blkctrl-v1-0-b57a72e60105@pengutronix.de/

@Conor Dooley
I dropped your r-b tag since I added the 'bus-width' property.

Regards,
  Marco

Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>
---
Changes in v9:
- Link to v8: https://lore.kernel.org/r/20260113-v6-18-topic-imx93-parallel-display-v8-0-4abccdc473a5@pengutronix.de
- dt-bindings: drop unncessary changes (Frank)
- imx93-pdfc: drop bridge.driver_private usage (Luca)
- Kconfig: Adapt Kconfig symbol and prompt (Luca)

Changes in v8:
- Link to v7: https://lore.kernel.org/r/20251202-v6-18-topic-imx93-parallel-display-v7-0-2cce31d64608@pengutronix.de
- dt-bindings: add nxp,imx91-pdfc compatible (Liu)
- dt-bindings: use video-interfaces.yaml# (Liu)
- dt-bindings: s/data lanes/data lines/ (Liu)
- dt-bindings: drop 'reg' poperty
- dt-bindings: drop #address-cells, #size-cells
- imx93-pdfc: drop drm/drm_print.h include (Liu)
- imx93-pdfc: s/exist/exists/ (Liu)
- imx93-pdfc: drop MEDIA_BUS_FMT_FIXED from imx93_pdfc_bus_output_fmts
- imx93-pdfc: imx93_pdfc_bus_output_fmt_supported: make fmt const
- imx93-pdfc: Rework input-fmt selection to always fallback to a sane
              default.
- imx93-pdfc: imx93_pdfc_bridge_atomic_check: make use of
	      imx93_pdfc_bus_output_fmt_supported() 
- imx93-pdfc: drop 'reg' dt-property usage
- imx93-pdfc: imx93_pdfc_bridge_probe: pass -1 for endpoint reg value (Liu)

Changes in v7:
- Link to v6: https://lore.kernel.org/r/20251201-v6-18-topic-imx93-parallel-display-v6-0-7b056e1e5b1e@pengutronix.de
- Add missing bits.h and bitfield.h headers (lkp)

Changes in v6:
- Link to v5: https://lore.kernel.org/all/20250304082434.834031-1-victor.liu@nxp.com/
- Add bus-width support
- rebase onto v6.18-rc1
- add review feedback (Alexander)
- driver license "GPL v2" -> "GPL" (checkpatch)
- make use of reg of-property
- fix to short Kconfig description (checkpath)
- add OF integration

---
Liu Ying (2):
      dt-bindings: soc: imx93-media-blk-ctrl: Add PDFC subnode to schema and example
      drm/bridge: imx: Add i.MX93 parallel display format configuration support

Marco Felsch (1):
      arm64: dts: imx93: Add parallel display output nodes

 .../bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml |  78 +++++++
 arch/arm64/boot/dts/freescale/imx91_93_common.dtsi |  54 +++++
 arch/arm64/boot/dts/freescale/imx93.dtsi           |  12 ++
 drivers/gpu/drm/bridge/imx/Kconfig                 |  11 +
 drivers/gpu/drm/bridge/imx/Makefile                |   1 +
 drivers/gpu/drm/bridge/imx/imx93-pdfc.c            | 226 +++++++++++++++++++++
 6 files changed, 382 insertions(+)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251201-v6-18-topic-imx93-parallel-display-95f9234bf6cc

Best regards,
-- 
Marco Felsch <m.felsch at pengutronix.de>