Messages in this thread | | | Date | Mon, 19 Jun 2017 06:53:12 -0700 | From | Tony Lindgren <> | Subject | Re: [PATCH v3 0/4] Generalize fncpy availability |
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* Mark Rutland <mark.rutland@arm.com> [170619 05:25]: > On Fri, Jun 16, 2017 at 05:07:40PM -0700, Florian Fainelli wrote: > > > > This is helpful in making SoC-specific power management code become true drivers > > that can be shared between different architectures. > > Could you elaborate on what this is needed for? > > My understanding was that on 32-bit, this was to handle idle / suspend > cases, whereas for arm64 that should be handled by PSCI. > > what exactly do you intend to use this for?
Well idle / suspend can have multiple needs such as running core while DDR is in self-refresh mode and saving and restoring of some context registers in that state.
Also clock drivers may need this to reprogram some core clocks.
Regards,
Tony
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