Hi,
Add initial support for IT66122, which seems to be compatible to it66121
but probably has additional functionality.
BeagleY-AI uses this it66122 as the old part is no longer in production
as far as I understand.
Now, BeaglePlay uses it66121 at the moment, but at some point, it might
end up flipping over to the new part. Additionally, it also looks like
Revision D of BeagleBone Black switched over to it66122 as well.
Changes in V4:
* Added patch to sort the compatibles alpha-numerically
* vid/pid lookup is done without using the match_data.
* picked reviews
Changes in V3:
Based on Tomi's and Devarsh's reviews, and searching online (and failing
to find) for a public data sheet, I have refactored the series to:
a) Detect the ID by matching vid/pid
b) Introduce it66122 basic support which seems to work based on
empirical testing evidence on BeagleY-AI. This allows incremental
patches in the future by someone who might have access to the data
sheet to add additional features for the chip.
c) Irritated by checkpatch --strict warnings, added a patch to fix
existing warnings as part of this series, but it could probably go
in independent of everything else.
d) Stopped claiming it66122 is drop in replacement of it66121 :)
Changes in V2:
* Picked up Krystoff's binding ack
* Switched over to a vid/pid list
V3: https://lore.kernel.org/all/20250815034105.1276548-1-nm@ti.com/
V2: https://lore.kernel.org/all/20250813204106.580141-1-nm@ti.com/
V1: https://lore.kernel.org/all/20250813190835.344563-1-nm@ti.com/
Nishanth Menon (5):
dt-bindings: display: bridge: it66121: Add compatible string for
IT66122
drm/bridge: it66121: Drop ftrace like dev_dbg() prints
drm/bridge: it66121: Sort the compatibles
drm/bridge: it66121: Use vid/pid to detect the type of chip
drm/bridge: it66121: Add minimal it66122 support
.../bindings/display/bridge/ite,it66121.yaml | 1 +
drivers/gpu/drm/bridge/ite-it66121.c | 66 +++++++++----------
2 files changed, 33 insertions(+), 34 deletions(-)
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2.47.0