[v2,0/4] Black level and other fixes for IMX662
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Message ID 20260806152701.4179-1-david.plowman@raspberrypi.com
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David Plowman Aug. 6, 2026, 3:19 p.m. UTC 
Hi

Version 2 changes only the 2nd patch (Allow black levels to vary with
analogue gain).

1. I've made it issue a little warning if you specify constant black
level values that are not used.

2. I've actually changed the PWL evaluation so that you get constant
extensions off the ends, rather than linear extrapolation. I don't
think it really matters too much, and it's probably not a thing that
would happen in something calibrated sensibly, but I'm perhaps
slightly more comfortable with this behaviour. (So I haven't added any
extra tags on this one as yet.)

Thanks!

David

David Plowman (4):
  ipa: rpi: cam_helper: Increase frameIntegrationDiff for IMX662
  ipa: rpi: Allow black levels to vary with analogue gain
  ipa: rpi: Update black level tuning for IMX662
  ipa: rpi: Update colour temperature curve for IMX662

 src/ipa/rpi/cam_helper/cam_helper_imx290.cpp | 19 +++++++--
 src/ipa/rpi/controller/rpi/black_level.cpp   | 45 ++++++++++++++++++--
 src/ipa/rpi/controller/rpi/black_level.h     |  7 +++
 src/ipa/rpi/pisp/data/imx662.json            | 15 ++++++-
 src/ipa/rpi/vc4/data/imx662.json             | 14 +++++-
 5 files changed, 88 insertions(+), 12 deletions(-)