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[RFC,0/7] media: export InfoFrames to debugfs

Message ID cover.1724249420.git.hverkuil-cisco@xs4all.nl
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Series media: export InfoFrames to debugfs | expand

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Hans Verkuil Aug. 21, 2024, 2:10 p.m. UTC 
Maxime added support for exporting InfoFrames to debugfs for drm,
and this series does the same for the media subsystem.

I used the same names for the InfoFrames as the drm implementation
does, and the format is the same as well. And edid-decode can be
used to parse the InfoFrames and do conformity checking.

The first two patches add helpers for this to the core framework,
and the next 5 patches add support for this to the HDMI drivers.

I tested the three adv drivers, and I hope to test the tc358743
driver at some point in the not too distant future :-)

I don't have a tda1997x available for testing, so I might decide
to just drop this.

It's RFC for now, but I think it is quite straightforward.

This is very useful for debugging received InfoFrames.

Regards,

	Hans

Hans Verkuil (7):
  media: v4l2-core: add v4l2_debugfs_root()
  media: v4l2-core: add v4l2_debugfs_if_alloc/free()
  media: i2c: adv7511-v4l2: export InfoFrames to debugfs
  media: i2c: adv7604: export InfoFrames to debugfs
  media: i2c: adv7842: export InfoFrames to debugfs
  media: i2c: tda1997x: export InfoFrames to debugfs
  media: i2c: tc358743: export InfoFrames to debugfs

 drivers/media/i2c/adv7511-v4l2.c          |  91 +++++++++++++---
 drivers/media/i2c/adv7604.c               |  90 ++++++++++++----
 drivers/media/i2c/adv7842.c               | 120 ++++++++++++++++------
 drivers/media/i2c/tc358743.c              |  36 ++++++-
 drivers/media/i2c/tda1997x.c              |  50 ++++++++-
 drivers/media/v4l2-core/v4l2-dev.c        |  14 +++
 drivers/media/v4l2-core/v4l2-dv-timings.c |  63 ++++++++++++
 include/media/v4l2-dev.h                  |  15 +++
 include/media/v4l2-dv-timings.h           |  48 +++++++++
 9 files changed, 455 insertions(+), 72 deletions(-)