Some non-gamepad devices opened as gamepads on Linux

[davnotdev]

Tested versions

Reproducible in v4.3.rc.custom_build.e343dbbcc, 4.2.2.stable.fedora.15073afe3, and v4.0.stable.official.92bee43ad

System information

Fedora

Issue description

On my hardware (ThinkBook 13s Gen 4 13" AMD) running Linux, my touchpad shows up as a device called ELAN06FA:00 04F3:3214 Touchpad on udev. This device is advertised similar to a joystick with absolute XY events and no key events, enough for Godot to pass this device as a joypad. When moving my cursor via this touchpad in game or in editor, both mouse events and joypad events are fired.

Steps to reproduce

Any use of joypad inputs. For example:

1. Project > Project Settings > Input Map
2. Click Filter events
3. Move the cursor via touchpad

Joypad axis 0-1 will appear.

Minimal reproduction project (MRP)

N/A