Add the bindings and driver for the BOE BF068MWM-TD0 panel used in the Nothing
Phone (3a).

This series depends on support for DSC configurations with slice_per_pkt > 1,
technically it boots up and displays stuff without it but you see artifacting
without it:
https://lore.kernel.org/linux-arm-msm/20260318-dsi-dsc-slice-per-pkt-v2-0-0a1b316f8250@pm.me

Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
---
Changes in v2:
- Rename binding & driver to DDIC instead of panel assembly (Neil)
- Clean up hardware resources in prepare() on errors (Sashiko AI review)
- Link to v1: https://lore.kernel.org/r/20260603-asteroids-panel-support-v1-0-109c6ac81c8f@pm.me

---
Alexander Koskovich (2):
      dt-bindings: display: panel: Document Raydium RM69220 DDIC
      drm/panel: Add driver for Raydium RM69220 DDIC

 .../bindings/display/panel/raydium,rm69220.yaml    |  74 ++++
 MAINTAINERS                                        |   6 +
 drivers/gpu/drm/panel/Kconfig                      |  15 +
 drivers/gpu/drm/panel/Makefile                     |   1 +
 drivers/gpu/drm/panel/panel-raydium-rm69220.c      | 435 +++++++++++++++++++++
 5 files changed, 531 insertions(+)
---
base-commit: 15a038bc8d93f92c80d9ba6844d4f16333234f39
change-id: 20260603-asteroids-panel-support-d55c929a89a8

Best regards,
-- 
Alexander Koskovich <akoskovich@pm.me>