> Gesendet: Donnerstag, 04. Juli 2019 um 12:03 Uhr > Von: "Ran Bi" <ran.bi@xxxxxxxxxxxx> > We had implement MT8173 poweroff function in arm-trusted-firmware's PSCI > plat_system_off() function. MT8173 SoC is using PMIC MT6397. (Ref: > https://github.com/ARM-software/arm-trusted-firmware/blob/master/plat/mediatek/mt8173/plat_pm.c and https://github.com/ARM-software/arm-trusted-firmware/blob/master/plat/mediatek/mt8173/drivers/rtc) Do you think it's better to implement poweroff function into arm-trusted-firmware compared to hijack pm_poweroff() function in Kernel? Right now, we are doing the upstream of other PMIC chip like MT6358's poweroff function in arm-trusted-firmware too. ATF imho only used for arm64, my board is 32bit armv7 and i (currently) do not boot up with ATF regards Frank