pinetab2 booting when adapter connected

[Kwiboo]

Can we just do a sudo pacman -S u-boot-tools or do we have to wait for a new image?

I would recommend update all packages, e.g. pacman -Syu or similar, the u-boot-tools package probably only provide tools and not the actual U-Boot image.
Also possible there may be some dependencies on a newer kernel when U-Boot package is upgraded from the one provided from factory image.

I took the ones from your u-boot-build repo dated 2023-08-06. Do they also have those fixes?

That build should also have these fixes.
Look like I forgot to build my latest rk3568-2023.07.02-81dac03 tag, have triggered a new build now, my bad :-)

Code diff at https://github.com/Kwiboo/u-boot-rockchi...02-81dac03
Does not look to affect anything for PineTab2, only Radxa CM3-IO board to my knowledge.