[PATCH v2 0/2] v4l2-async: add subnotifier registration for subdevices

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From: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>

Hi,

This series enables incremental async find and bind of subdevices, 
please se patch 2/2 for a more detailed description.

This is tested on Renesas H3 and M3-W together with the Renesas CSI-2 
and VIN Gen3 driver (posted separately). It is based on top of Sakaris 
pull request '[GIT PULL FOR v4.13] V4L2 fwnode support'. While this 
series do not require the fwnode support the code that makes us of this 
feature do.

Changes since v1:
- Added a pre-patch which adds an error check which was previously in 
  the new incremental async code but is more useful on its own.
- Added documentation to Documentation/media/kapi/v4l2-subdev.rst.
- Fixed data type of bool variable.
- Added call to lockdep_assert_held(), thanks Sakari.
- Fixed commit messages typo, thanks Sakari.

Niklas Söderlund (2):
  v4l: async: check for v4l2_dev in v4l2_async_notifier_register()
  v4l: async: add subnotifier registration for subdevices

 Documentation/media/kapi/v4l2-subdev.rst | 20 +++++++
 drivers/media/v4l2-core/v4l2-async.c     | 91 +++++++++++++++++++++++++-------
 include/media/v4l2-async.h               | 22 ++++++++
 3 files changed, 115 insertions(+), 18 deletions(-)

-- 
2.13.0




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