Hi, I had a similar issue with my Panasonic FZ330 not being recognised automatically. You can read about it in this thread, FZ330 automatic Profiled Lens Correction help
I think adding the code below to the “compact-panasonic.xml” file of your Lensfun directory will solve the problem.
<camera>
<maker>Panasonic</maker>
<model>DC-TZ220</model>
<!-- Regional version of ZS200 -->
<mount>panasonicZS200</mount>
<cropfactor>2.73</cropfactor>
</camera>