Hi Geert-san, > From: Geert Uytterhoeven, Sent: Friday, July 17, 2020 7:07 PM <snip> > > > > However, PMIC on ULCB cannot control the KF power unfortunately. > > > > So, we have no chance to use s2ram on ULCB+KF... > > > > > > Makes sense. > > > BTW, what happens if you try s2ram? I guess the system just wakes up again > > > immediately? Or does it crash? > > > > It's frozen after s2ram. Some LEDs on ULCB is OFF. But, LEDs on KF is still ON. > > Oops. > > > So, I'm wondering if it's better to add the property on ULCB+KF too > > because it seems ULCB is turned off. But, what do you think? > > IMHO, a graceful shutdown is better. Thank you for your opinion. I think so. So, I'll submit a patch. Best regards, Yoshihiro Shimoda