[PATCH 0/4] media: subdev: Improve stream enable/disable machinery

Tomi Valkeinen
2024-04-04T10:50:20Z

This series works on the .s_stream, .enable_streams, .disable_streams
related code:

"media: subdev: Add checks for subdev features" adds check to verify
that the subdevs implement the proper mix of the above ops.

"media: subdev: Fix use of sd->enabled_streams in call_s_stream()" fixes
somewhat questionable use of sd->enabled_streams in call_s_stream().

"media: subdev: Improve v4l2_subdev_enable/disable_streams_fallback"
drops the restriction of supporting only a single source pads, and
prepares the way for the following patch.

"media: subdev: Support enable/disable_streams for non-streams subdevs"
makes it possible for non-streams subdevs to use .enable_streams and
.disable_streams, deprecating the earlier patch "[PATCH] media:
v4l2-subdev: Support enable/disable_streams for single-pad subdevs".

I have tested this on RPi5 with multiple streams, but I still need to
figure out ways to test the other scenarios.

Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
Tomi Valkeinen (4):
media: subdev: Add checks for subdev features
media: subdev: Fix use of sd->enabled_streams in call_s_stream()
media: subdev: Improve v4l2_subdev_enable/disable_streams_fallback
media: subdev: Support enable/disable_streams for non-streams subdevs

drivers/media/v4l2-core/v4l2-subdev.c | 189 +++++++++++++++++++++++-----------
include/media/v4l2-subdev.h | 11 +-
2 files changed, 133 insertions(+), 67 deletions(-)
---
base-commit: b82779648dfd3814df4e381f086326ec70fd791f
change-id: 20240404-enable-streams-impro-db8bcd898471

Best regards,
--
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>