[PATCH v4 0/4] media: rockchip: Add JPEG decoder driver

[Sascha Hauer <s.hauer@pengutronix.de>]

This series adds support for the Rockchip JPEG decoder hardware. The JPEG decoder
is an in-house IP which is integrated into various Rockchip SoCs. The driver is
tested on a RK3588 board but reportedly works on RK3568 as well.

An earlier version of this driver was posted as part of the Hantro
driver [1]. That turned out to be the wrong abstraction, so it was split
up into a series with the Hantro fixes [2] and this series with a
standalone driver, which started over at v1.

[1] https://lore.kernel.org/r/20260819-rk3588-jpegdec-v1-0-33d74cdf369c@pengutronix.de
[2] https://lore.kernel.org/r/20260824-rk3588-jpegdec-v1-0-180a30a2852d@pengutronix.de

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
Changes in v4:
- Set and read the source change flags under fmt_lock
- Check the runtime PM state in the interrupt handler
- Use dma-buf CPU access around the grayscale chroma fill
- Update the review notes in the driver patch
- Link to v3: https://lore.kernel.org/r/20260914-rockchip-jpegdec-v3-0-3583c376d0d2@pengutronix.de

Changes in v3:
- Rename binding to rockchip,rk3568-jpegd.yaml to match the compatible
- Link the earlier Hantro based series in the cover letter
- Enable clocks from the runtime PM callbacks, use pm_ptr()
- Protect capture format and crop with a mutex
- Clear bytesused on capture buffers returned without a picture
- Revert padding the capture buffer to the MCU width, it broke 4:1:1
- Add notes on review questions to the driver patch
- Link to v2: https://lore.kernel.org/r/20260825-rockchip-jpegdec-v2-0-86af859a3266@pengutronix.de

Changes in v2:
- rename clocks from aclk/hclk to axi/ahb
- Add missing Signed-off-by
- Fix suspend/resume path
- Pad the capture buffer to the mode's MCU width, not to a macroblock
- Reject a frame header picture size outside the supported range
- Set the capture payload at decode time, not at queue time
- Trim comments in the driver
- Link to v1: https://lore.kernel.org/r/20260824-rockchip-jpegdec-v1-0-8011822bf500@pengutronix.de

---
Sascha Hauer (4):
      media: dt-bindings: Add Rockchip JPEG decoder
      media: rockchip: Add JPEG decoder driver
      arm64: dts: rockchip: rk3588: Add JPEG decoder node
      arm64: dts: rockchip: rk356x: Add JPEG decoder node

 .../bindings/media/rockchip,rk3568-jpegd.yaml      |   92 +
 MAINTAINERS                                        |    9 +
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi      |   22 +
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi      |   24 +
 drivers/media/platform/rockchip/Kconfig            |    1 +
 drivers/media/platform/rockchip/Makefile           |    1 +
 drivers/media/platform/rockchip/rkjpegd/Kconfig    |   15 +
 drivers/media/platform/rockchip/rkjpegd/Makefile   |    3 +
 .../rockchip/rkjpegd/rkjpegd-vdpu720-regs.h        |  230 ++
 drivers/media/platform/rockchip/rkjpegd/rkjpegd.c  | 2385 ++++++++++++++++++++
 10 files changed, 2782 insertions(+)
---
base-commit: db2ddb87143519e20a95aa36c60b36107b736a58
change-id: 20260821-rockchip-jpegdec-0d6880cf656c

Best regards,
-- 
Sascha Hauer <s.hauer@pengutronix.de>