On 1 October 2014 13:23, Tomasz Figa <tomasz.figa@xxxxxxxxx> wrote: > On 30.09.2014 20:33, Kevin Hilman wrote: >> Ulf Hansson <ulf.hansson@xxxxxxxxxx> writes: >> >>> At ->probe() it's common practice for drivers/subsystems to bring their >>> devices to full power and without depending on CONFIG_PM_RUNTIME. >>> >>> We could also expect that drivers/subsystems requires their device's >>> corresponding PM domains to be powered, to successfully complete a >>> ->probe() sequence. >>> >>> Align to the behavior above, by ensuring all PM domains are powered >>> prior initialization of a generic PM domain. >>> >>> Do note, since the generic PM domain will try to power off unused PM >>> domains at late_init, there are no increased power consumption over >>> time. >> >> IMO "no increased power consumption" is a bit misleading because >> boot-time power consumption may have a major increase when all power >> domains are powered on. Sure, they will eventually (hopefully) be >> turned off in after late_initcall, but there will still be an impact. >> >> I guess the Samsung folks should comment here on whether that is >> significant. > > Unfortunately this series has not been posted to linux-samsung-soc > mailing list and I'm a formerly-Samsung folk now, so it hasn't really > reached there. > Ohh, thanks for pointing this out. I will resend it. Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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