From: Benjamin Tissoires on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/777#note_52468...
Hmm, I am actually really hesitant to give an ACK here. I wouldn't be
surprised that s390x and/or powerpc might be using PS/2 for their
mice/keyboards. I don't have any data to back this up unfortunately (no
bug is showing up in my history).
The thing that worries me is that in the upstream code, there are a few
`#if defined(CONFIG_X86)` here and there, which would lead me that X86
is not the only consumer of that bus.
After a search in the tree I find:
in `drivers/input/serio/Kconfig`:
```
config ARCH_MIGHT_HAVE_PC_SERIO
bool
help
Select this config option from the architecture Kconfig if
the architecture might use a PC serio device (i8042) to
communicate with keyboard, mouse, etc.
```
And in `arch/powerpc/Kconfig`
```
select ARCH_MIGHT_HAVE_PC_SERIO
```
So definitively, powerpc has support for PS/2.
I'd say patches 3,5,6,7 are fine ("Generic: Mouse: Tweak generic serial
mouse options", "Sync serio touchscreens for non x86 architectures to
the same as ARK", "input: touchscreen: move ELO and Wacom serial
touchscreens to x86", "Build SERIO_SERPORT as a module")