[PATCH v2 0/5] Add support for DCMIPP camera interface of STMicroelectronics STM32 SoC series

[Alain Volmat]

This patchset introduces support for Digital Camera Memory Interface
Pixel Processor (DCMIPP) of STMicroelectronics STM32 SoC series.

This initial support implements a single capture pipe
allowing RGB565, YUV, Y, RAW8 and JPEG capture with
frame skipping, prescaling and cropping.

DCMIPP is exposed through 3 subdevices:
- dcmipp_dump_parallel: parallel interface handling
- dcmipp_dump_postproc: frame skipping, prescaling and cropping control
- dcmipp_dump_capture: video device capture node

v2:
  - removal of pclk-max-frequency from yaml example dts
  - codying-style fixes
  - correction in enum functions (format, mbus, frame_size ...) handling
  - drop of v4l2_pipeline_pm_ calls, and specific open/close handler of
    vdev
  - video dev s_stream handling updated to call s_stream of remote subdev
    instead of loop until sensor subdev
  - code update following media_pipeline & v4l2_async_ api changes since v1
  - removal of IP reset call upon error
  - removal of link_validate handlers
  - addition of V4L2_CAP_IO_MC device_caps
  - removal of the frame skip control for the time being, will be added
    back in another commit once control method will be agreed
  - change byteproc entity type to MEDIA_ENT_F_PROC_VIDEO_SCALER
  - various fixes from Dan & Sakari remarks

Alain Volmat (2):
  dt-bindings: media: add bindings for dcmipp driver
  media: MAINTAINERS: add entry for STM32 DCMIPP driver

Hugues Fruchet (3):
  media: stm32-dcmipp: STM32 DCMIPP camera interface driver
  ARM: dts: stm32: add dcmipp support to stm32mp135
  ARM: multi_v7_defconfig: enable STM32 DCMIPP media support

 .../bindings/media/st,stm32-dcmipp.yaml       |   95 ++
 MAINTAINERS                                   |    9 +
 arch/arm/boot/dts/st/stm32mp135.dtsi          |    9 +
 arch/arm/configs/multi_v7_defconfig           |    1 +
 drivers/media/platform/st/stm32/Kconfig       |   15 +
 drivers/media/platform/st/stm32/Makefile      |    1 +
 .../platform/st/stm32/stm32-dcmipp/Makefile   |    5 +
 .../st/stm32/stm32-dcmipp/dcmipp-bytecap.c    | 1040 +++++++++++++++++
 .../st/stm32/stm32-dcmipp/dcmipp-byteproc.c   |  692 +++++++++++
 .../st/stm32/stm32-dcmipp/dcmipp-common.c     |  105 ++
 .../st/stm32/stm32-dcmipp/dcmipp-common.h     |  227 ++++
 .../st/stm32/stm32-dcmipp/dcmipp-core.c       |  673 +++++++++++
 .../st/stm32/stm32-dcmipp/dcmipp-parallel.c   |  523 +++++++++
 13 files changed, 3395 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/Makefile
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-common.c
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-common.h
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-core.c
 create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c

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2.25.1