This is v2 of the series to add support for the Allegro DVT H.264 encoder
found in the EV family of the Xilinx ZynqMP platform.

See v1 [0] of the patch series for a description of the hardware.

I fixed the handling of frames with various sizes and driver is now able to
encode H.264 video in the baseline profile up to 1920x1080 pixels. I also
addressed the issues reported by the kbuild robot for the previous series,
implemented a few extended controls and changed the interface to the mcu to
follow the register documentation rather than the downstream driver
implementation.

I would especially appreciate feedback to the device tree bindings and the
overall architecture of the driver.

The driver still only works with the vcu-firmware release 2018.2. I am not yet
sure how to address the different firmware versions, because in addition to
the mailbox sizes, there are also changes within the messages themselves.

I also did not address the integration with the xlnx-vcu driver, yet.

Michael

[0] https://lore.kernel.org/linux-media/20190109113037.28430-1-m.tretter@pengutronix.de/ (local)

Changes since v1:
- clean up debug log levels
- fix unused variable in allegro_mbox_init
- fix uninitialized variable in allegro_mbox_write
- fix global module parameters
- fix Kconfig dependencies
- return h264 as default codec for mcu
- implement device reset as documented
- document why irq does not wait for clear
- rename ENCODE_ONE_FRM to ENCODE_FRAME
- allow error codes for mcu_channel_id
- move control handler to channel
- add fw version check
- add support for colorspaces
- enable configuration of H.264 levels
- enable configuration of frame size
- enable configuration of bit rate and CPB size
- enable configuration of GOP size
- rework response handling
- fix missing error handling in allegro_h264_write_sps

Michael Tretter (3):
  media: dt-bindings: media: document allegro-dvt bindings
  [media] allegro: add Allegro DVT video IP core driver
  [media] allegro: add SPS/PPS nal unit writer

 .../devicetree/bindings/media/allegro.txt     |   35 +
 MAINTAINERS                                   |    6 +
 drivers/staging/media/Kconfig                 |    2 +
 drivers/staging/media/Makefile                |    1 +
 drivers/staging/media/allegro-dvt/Kconfig     |   16 +
 drivers/staging/media/allegro-dvt/Makefile    |    6 +
 .../staging/media/allegro-dvt/allegro-core.c  | 2828 +++++++++++++++++
 drivers/staging/media/allegro-dvt/nal-h264.c  | 1278 ++++++++
 drivers/staging/media/allegro-dvt/nal-h264.h  |  188 ++
 9 files changed, 4360 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/allegro.txt
 create mode 100644 drivers/staging/media/allegro-dvt/Kconfig
 create mode 100644 drivers/staging/media/allegro-dvt/Makefile
 create mode 100644 drivers/staging/media/allegro-dvt/allegro-core.c
 create mode 100644 drivers/staging/media/allegro-dvt/nal-h264.c
 create mode 100644 drivers/staging/media/allegro-dvt/nal-h264.h

-- 
2.20.1