[v3,0/7] hantro: set of small cleanups and fixes

Message

Ezequiel Garcia March 25, 2020, 9:34 p.m. UTC

Hi all,

Cleanups and fixes, third iteration.

The main idea here is to address two issues, and while
at it, clean the driver a bit.

The first issue can be found in Patch 1, when the Request
API is used, the CAPTURE buffer should be returned _before_
the OUTPUT buffer, to avoid waking up userspace prematurely.

I noticed this issue while working on the rkvdec driver,
but this time I've decided to tackle it at the core,
in v4l2_m2m_buf_done_and_job_finish().

The second issue is a simple compliance issue, which is solved
by refactoring the driver, dealing with internal set format
properly.

Note that patch 7 still needs reviews from device tree maintainers.

Changes v3:

* Rebased media master.

* Revert buffer sequence removal change.

Changes v2:

* Fix compile warning introduced by patch 6.

* I'm adding two additional patches this time.
  Patch 7 converts the binding to json-schema,
  and patch 8 puts linux-rockchip mailing list in MAINTAINERS. 

Thanks,
Ezequiel

Ezequiel Garcia (7):
  v4l2-mem2mem: return CAPTURE buffer first
  hantro: Set buffers' zeroth plane payload in .buf_prepare
  hantro: Use v4l2_m2m_buf_done_and_job_finish
  hantro: Remove unneeded hantro_dec_buf_finish
  hantro: Move H264 motion vector calculation to a helper
  hantro: Refactor for V4L2 API spec compliancy
  dt-bindings: rockchip-vpu: Convert bindings to json-schema

 .../bindings/media/rockchip-vpu.txt           |  43 -------
 .../bindings/media/rockchip-vpu.yaml          |  82 +++++++++++++
 MAINTAINERS                                   |   2 +-
 drivers/media/v4l2-core/v4l2-mem2mem.c        |  11 +-
 drivers/staging/media/hantro/hantro.h         |   7 +-
 drivers/staging/media/hantro/hantro_drv.c     |  28 ++---
 drivers/staging/media/hantro/hantro_hw.h      |  31 +++++
 drivers/staging/media/hantro/hantro_v4l2.c    | 111 +++++++++---------
 8 files changed, 193 insertions(+), 122 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/media/rockchip-vpu.txt
 create mode 100644 Documentation/devicetree/bindings/media/rockchip-vpu.yaml