The RKISP1 supports a configurable Hue as part of the colour processing
unit (cproc).
Implement the new control converting to the hardware scale accordingly
and report the applied control in the completed request metadata.
This is implemented as a phase shift of the chrominance values between
-90 and +87.188 degrees according to the datasheet however the type
itself would imply that this is a range between -90 and 89.2969.
Moreover, the hardware applies the inverse phase shift to the operation
expected and documented by libcamera, so we apply a negative scale when
converting the libcamera control to the Q<1,7> type, resulting in a
range of -89.2969 to +90.0 degrees control.
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Tested-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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