Missing AIQB tuning for HI556 with module ID `13P2BAD33` (Dell XPS 13 9315, Alder Lake / IPU6EP)

[zeromanu0]

Hardware:

• Laptop: Dell XPS 13 9315 (2-in-1)
• Platform: Intel Alder Lake, IPU6 (driver reports intel-ipu6, ISYS intel_ipu6_isys)
• Sensor: Hynix HI556, on I2C bus, address 0-0020
• ACPI camera module identifier (from _SB_.PC00.I2C2.CAM0._DSM, UUID 822ace8f-2814-4174-a56b-5f029fe079ee): 13P2BAD33

Kernel: 6.18.38, Arch Linux, intel_ipu6/intel_ipu6_isys/hi556 kernel modules load correctly and the sensor is detected/probed (confirmed via media-ctl -p topology and successful raw frame capture with libcamera's cam tool).

Issue:
The repo currently ships two HI556 tuning profiles for Alder Lake (config/linux/ipu6ep/HI556_CJFLE25_ADL.aiqb and HI556_1BG502T3_ADL.aiqb), but neither matches this module's ACPI-reported ID (13P2BAD33). That exact ID string only appears elsewhere in the repo paired with a different sensor (IMX135_13P2BAD33_TGL), which is presumably an unrelated board reusing the same module/PCB part number with a different sensor.

Without a matching profile, image processing is currently limited to libcamera's generic software ISP fallback (ipa/simple/uncalibrated.yaml), which produces poor color/exposure (visible green cast, underexposure) compared to a properly tuned hardware ISP pipeline.

Questions:

1. Is there an existing HI556 tuning closer to this module (e.g. a variant not yet in this repo) that I should try?
2. If not, what's the recommended path to contribute one (calibration procedure, required tools/target charts) for the 13P2BAD33 module ID so it can be added for other Dell XPS 13 9315 users?

Happy to provide any additional ACPI dumps (SSDB/CLDB buffers) or test images if useful.