The firmware will add a simplefb node if both of the following are true:
1. There is no "display0" DT alias.
2. /soc/fb is absent or disabled.
If you want to use an alternative FB, create an alias "display0" pointing to it.
Yes, the GPIOs will do as they're told, regardless of whether it's sensible or not.It should still change the behaviour of the pin as defined in the blob for the pin from the bcm8235 despite it not being pulled out, right?