CPUIDLE not enabled
There is a power saving feature for sunxi based devices, that are not currently enabled for our Pinephone images.
What it needs, is for TF-A to be built with the SUNXI_AMEND_DTB=1
option.
So the TF-A build command would be:
make PLAT=sun50i_a64 SUNXI_AMEND_DTB=1 bl31
instead of the current one.
I can create an MR if needed.