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[v2,0/1] RFC: media: v4l2-subdev: add subdev-wide config struct

Message ID 20210423102952.137638-1-tomi.valkeinen@ideasonboard.com (mailing list archive)
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Series RFC: media: v4l2-subdev: add subdev-wide config struct | expand

Message

Tomi Valkeinen April 23, 2021, 10:29 a.m. UTC 
Hi,

Second version of the RFC. The previous one is here:

https://lore.kernel.org/linux-media/20210409133659.389544-1-tomi.valkeinen@ideasonboard.com/

In v2:
- Rename v4l2_subdev_config -> v4l2_subdev_state
- Rename pad_configs -> pads
- Allocate the v4l2_subdev_state instead of embedding it

I didn't:
- Rename v4l2_subdev_pad_ops->init_cfg to init_state. There will be a
  huge amount of changes to drivers, and I'd like to keep any extra
  changes out of this series. For the same reason, I intend to keep
  the v4l2_subdev_state variable names as 'cfg' instead of trying to
  rename them to 'state'.
- Add number of pads or a pointer to subdev to v4l2_subdev_state. It can
  be added easily if someone has a need for it.

I also dropped the few driver changes I made. They are obvious trivial
changes and don't really give anything to the discussion.

 Tomi

Tomi Valkeinen (1):
  RFC: media: v4l2-subdev: add subdev-wide state struct

 drivers/media/v4l2-core/v4l2-subdev.c | 141 +++++++++++++++-----------
 include/media/v4l2-subdev.h           |  72 +++++++------
 2 files changed, 120 insertions(+), 93 deletions(-)