[PATCH v2 0/3] media: rockchip: Add the IEP2 deinterlacer of RK3568/RK3588

[Arun Iyengar via B4 Relay <devnull+aiyengar1990.gmail.com@kernel.org>]

Add a V4L2 mem2mem driver for the IEP2 deinterlacer of the RK3568 and
RK3588, with its binding and the RK3588 DT node. It is based on the
Rockchip vendor driver; the V4L2 side follows Alex Bee's IEP driver.

Tested on an Orange Pi 5 (RK3588S) with a 7.3-based kernel; build-tested
on media next. v4l2-compliance 59/59, all four modes at 576i/1080i without
IOMMU faults. Not tested: RK3568. DMABUF imports of exactly the image
size are refused, because of the 4 KiB OUTPUT padding (see 2/3).

Developed with Claude (Anthropic), which wrote the code and the commit
messages; I reviewed every change.

---
Changes in v2:
- 2/3: return the held OUTPUT and second CAPTURE buffers when a job cannot start (Sashiko)
- 2/3: clear only the interrupt bits that were read (Sashiko)
- 2/3: in remove(), unregister the video device before suspending the m2m core (Sashiko)
- Shorter cover, driver commit message, doc and comments
- Link to v1: https://patch.msgid.link/20261114-iep2-v1-0-a8edde5a21e1@gmail.com

---
Arun Iyengar (3):
      media: dt-bindings: Add Rockchip IEP2 deinterlacer
      media: rockchip: Add IEP2 deinterlacer driver
      arm64: dts: rockchip: Add IEP2 deinterlacer to RK3588

 Documentation/admin-guide/media/rockchip-iep2.rst  |   32 +
 Documentation/admin-guide/media/v4l-drivers.rst    |    1 +
 .../bindings/media/rockchip,rk3568-iep2.yaml       |   95 ++
 MAINTAINERS                                        |    9 +
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi      |   22 +
 drivers/media/platform/rockchip/Kconfig            |    1 +
 drivers/media/platform/rockchip/Makefile           |    1 +
 drivers/media/platform/rockchip/iep2/Kconfig       |   16 +
 drivers/media/platform/rockchip/iep2/Makefile      |    3 +
 drivers/media/platform/rockchip/iep2/iep2-regs.h   |  191 +++
 drivers/media/platform/rockchip/iep2/iep2.c        | 1280 ++++++++++++++++++++
 drivers/media/platform/rockchip/iep2/iep2.h        |  106 ++
 12 files changed, 1757 insertions(+)
---
base-commit: ad6549a46748d00818483b535e5cd2a704685c98
change-id: 20261110-iep2-b9a9c6e77c44

Best regards,
--  
Arun Iyengar <aiyengar1990@gmail.com>