Patch Set 1:

I'm not sure if s0ix works regardless of hardware support. If s0ix doesn't require the mainboard to wire something in a certain way, then we can have a prompt in Kconfig to choose whether to enable it. I'd also add a Kconfig so that mainboards can easily enable s0ix by default, but without force-enabling s0ix as a plain `select` would. If hardware support is required, then one would have a Kconfig symbol to indicate a mainboard supports s0ix, and another one (that could just default to y) to let the user choose whether to enable it (I assume that non-s0ix would always work)

Does anyone happen to know if s0ix depends on whether mainboard designs implement something?

I am not aware of any board design dependency. There is that SLP_S0 pin that *can* or *should* be connected to the VR or EC to give them the ability to go to lighter modes, too. It is not mandatory, AFAICT.

View Change

To view, visit change 45542. To unsubscribe, or for help writing mail filters, visit settings.