touchscreen-size-y for rpi-ft5406 defaults to 480, not 600
Info: Official Raspberry Pi display touchscreen
Load: dtoverlay=rpi-ft5406,<param>=<val>
Params: touchscreen-size-x Touchscreen X resolution (default 800)
- touchscreen-size-y Touchscreen Y resolution (default 600);
+ touchscreen-size-y Touchscreen Y resolution (default 480);
touchscreen-inverted-x Invert touchscreen X coordinates (default 0);
touchscreen-inverted-y Invert touchscreen Y coordinates (default 0);
touchscreen-swapped-x-y Swap X and Y cordinates (default 0);