ValueError: 'bl_ctrl_external' is not a valid BacklightControl

[Patriot-06]

Parsing: oppo19696jdi_nt36672c_1080_2400_90fps_vid (jdi nt36672c fhd ltps tft lcd panel with DSC)
Traceback (most recent call last):
File "/mnt/build/patriot06/dsi/./lmdpdg.py", line 77, in
panel = Panel.parse(fdt, offset)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/mnt/build/patriot06/dsi/panel.py", line 334, in parse
return name and Panel(name.as_str(), fdt, node)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/mnt/build/patriot06/dsi/panel.py", line 234, in init
self.backlight = BacklightControl(backlight.as_str()) if backlight else None
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/enum.py", line 712, in call
return cls.new(cls, value)
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/enum.py", line 1135, in new
raise ve_exc
ValueError: 'bl_ctrl_external' is not a valid BacklightControl