Hi Geert, On 20/02/17 20:33, Geert Uytterhoeven wrote: > Enable support for "shallow" suspend mode, also known as "Standby" or > "Power-On Suspend". > > As secondary CPU cores are taken offline, "shallow" suspend mode saves > slightly more power than "s2idle", but less than "deep" suspend mode. > However, unlike "deep" suspend mode, "shallow" suspend mode can be used > regardless of the presence of support for PSCI_SYSTEM_SUSPEND, which is > an optional API in PSCI v1.0. > > List the available system suspend modes: > > $ cat /sys/power/mem_sleep > s2idle shallow [deep] > > Suspend to "shallow" mode: > > $ echo shallow > /sys/power/mem_sleep > $ echo mem > /sys/power/state > I don't have the links to such previous attempts handy, but we have more elegant alternative options(suspend-to-idle) and any such attempts to hack around the PSCI will be NACKed. -- Regards, Sudeep
