Dear Matt Sealey,
I'm gonna NACK
You can't, only the custodians can ... you can only disagree and provide your opinion, which you did ;-)
this because most of these pin settings are actually the POR defaults anyway (UART1 is the example I can easily pick out).
.. unless someone's setting them up wrong between warn reboots
Which in turn might cause trouble during reboots, so it's better to configure them back properly.
or changing a UART into something else later in boot.. which is unfathomable.. we don't need to even touch the iomux controller to get a working UART on MX51, Efika MX or anything.
You don't ... lucky you.
Why bother touching them?
To avoid cases where broken kernel can't reboot or even cause hardware damage.
[...]
Best regards, Marek Vasut