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 the media-tree. * Changes since v2 - Fixed lots of spelling mistakes, thanks Hans! - Used a goto instead if state variable when restarting iteration over subdev list as suggested by Sakari. Thank you it's much easier read now. - Added Acked-by from Sakari and Hans, thanks! - Rebased to latest media-tree. * 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 | 68 +++++++++++++++++++++++++++----- include/media/v4l2-async.h | 22 +++++++++++ 3 files changed, 100 insertions(+), 10 deletions(-) -- 2.13.1