Re: [PATCH v2 00/15] staging: vc04_services: bcm2835-isp support

[Stefan Wahren]

Hi Umang,

Am 09.11.23 um 22:02 schrieb Umang Jain:
> This series aims to upport bcm2835-isp from the RPi kernel.
> It is developed on top of staging-next which comprises many
> VC04 changes for it's de-staging. Hence, the merge of this
> driver is targeted when VC04 is de-staged completely (which I
> have been pushing), but it can be helped getting reviewed meanwhile.
> Hence, the reason for posting the series.
>
> Patch (01-02)/15  adds a new driver named vc-sm-cma to handle memory sharing
> with the VC4 VPU.
>
> Patch 03/15 adds a small extension to videobuf2 to allow exporting as a
> dma_buf instead of a file-descriptor.
>
> Patch (04-05)/15 adds a couple of improvements/support for
> bcm2835-isp(event callback and zero-copy) to vchiq-mmal.
>
> Patch (06-10)/15 adds the core bcm2835-isp driver along with headers
> and format defintions. 09/15 is a standalone patch which can be merged
> independently I believe.
>
> Patch (11-12)/15 deals with the colorspace support.
>
> Patch 13/15 allows multiple instances of the ISP.
>
> Patch 14/15 adds a admin-guide document on bcm2835-isp.
>
> Patch 15/15 deals with driver registeration.

since this is V2, i couldn't find a changelog? The first one was one
year ago, so it's very hard to remember. In such a case a link to the
last version is also helpful.

Recently i saw you have a Github account. For such a complex series it's
also very helpful to provide a link to a working test branch with this
series applied. It's not a must, but appreciated.

Best regards

> Dave Stevenson (6):
>    staging: vc04_services: Add new vc-sm-cma driver
>    media: videobuf2: Allow exporting of a struct dmabuf
>    staging: mmal-vchiq: Add support for event callbacks
>    staging: mmal-vchiq: Use vc-sm-cma to support zero copy
>    staging: mmal_vchiq: Add image formats to be used by bcm2835-isp
>    uapi: bcm2835-isp: Add bcm2835-isp uapi header file
>
> David Plowman (2):
>    vc04_services: bcm2835-isp: Allow formats with different colour spaces
>    vc04_services: bcm2835-isp: Permit all sRGB colour spaces on ISP
>      outputs
>
> Naushir Patuck (4):
>    media: uapi: v4l2-core: Add ISP statistics output V4L2 fourcc type
>    staging: vc04_services: bcm2835-isp: Add a more complex ISP processing
>      component
>    staging: vc04_services: bcm2835_isp: Allow multiple users
>    docs: admin-guide: media: bcm2835-isp: Add documentation for
>      bcm2835-isp
>
> Umang Jain (3):
>    staging: vc04_services: vchiq_arm: Register vcsm-cma driver
>    staging: vc04_services: Add helpers for vchiq driver data
>    staging: vc04_services: vchiq: Register bcm2835-isp
>
>   .../admin-guide/media/bcm2835-isp.rst         |  127 ++
>   .../userspace-api/media/drivers/index.rst     |    1 +
>   .../userspace-api/media/v4l/meta-formats.rst  |    1 +
>   .../v4l/pixfmt-meta-bcm2835-isp-stats.rst     |   32 +
>   MAINTAINERS                                   |    9 +
>   .../media/common/videobuf2/videobuf2-core.c   |   36 +-
>   drivers/media/v4l2-core/v4l2-ioctl.c          |    1 +
>   drivers/staging/vc04_services/Kconfig         |    4 +
>   drivers/staging/vc04_services/Makefile        |    3 +-
>   .../staging/vc04_services/bcm2835-isp/Kconfig |   14 +
>   .../vc04_services/bcm2835-isp/Makefile        |    4 +
>   .../bcm2835-isp/bcm2835-isp-ctrls.h           |   72 +
>   .../bcm2835-isp/bcm2835-isp-fmts.h            |  559 +++++
>   .../bcm2835-isp/bcm2835-v4l2-isp.c            | 1822 +++++++++++++++++
>   .../interface/vchiq_arm/vchiq_arm.c           |    6 +
>   .../interface/vchiq_arm/vchiq_bus.h           |   10 +
>   .../staging/vc04_services/vc-sm-cma/Kconfig   |   10 +
>   .../staging/vc04_services/vc-sm-cma/Makefile  |    4 +
>   .../staging/vc04_services/vc-sm-cma/vc_sm.c   |  817 ++++++++
>   .../staging/vc04_services/vc-sm-cma/vc_sm.h   |   54 +
>   .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.c  |  507 +++++
>   .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.h  |   63 +
>   .../vc04_services/vc-sm-cma/vc_sm_defs.h      |  187 ++
>   .../vc04_services/vc-sm-cma/vc_sm_knl.h       |   28 +
>   .../staging/vc04_services/vchiq-mmal/Kconfig  |    1 +
>   .../vc04_services/vchiq-mmal/mmal-common.h    |    5 +
>   .../vc04_services/vchiq-mmal/mmal-encodings.h |   66 +
>   .../vc04_services/vchiq-mmal/mmal-msg.h       |   35 +
>   .../vchiq-mmal/mmal-parameters.h              |  165 +-
>   .../vc04_services/vchiq-mmal/mmal-vchiq.c     |  253 ++-
>   .../vc04_services/vchiq-mmal/mmal-vchiq.h     |    5 +
>   include/media/videobuf2-core.h                |   15 +
>   include/uapi/linux/bcm2835-isp.h              |  347 ++++
>   include/uapi/linux/v4l2-controls.h            |    5 +
>   include/uapi/linux/videodev2.h                |    1 +
>   35 files changed, 5235 insertions(+), 34 deletions(-)
>   create mode 100644 Documentation/admin-guide/media/bcm2835-isp.rst
>   create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
>   create mode 100644 drivers/staging/vc04_services/bcm2835-isp/Kconfig
>   create mode 100644 drivers/staging/vc04_services/bcm2835-isp/Makefile
>   create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h
>   create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
>   create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/Kconfig
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/Makefile
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm.h
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
>   create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_knl.h
>   create mode 100644 include/uapi/linux/bcm2835-isp.h