[PATCH v2 4/4] ath10k: Enable sta idle power save

Sebastian Gottschall s.gottschall at dd-wrt.com
Fri Apr 20 00:21:33 PDT 2018

>> Yes this is WIFI chip set level power-save(based on idleness) and not
>> related to protocol power save. FW will turn off/scale down the
>> resources(clock/rails) based on opportunity(when ever idle mode is
>> detected). This power save is mostly done in disconnected state. I am
>> not really sure when framework/user-space triggers power-save
>> config(iw dev <devname> set power_save on/off). Then doing this from
>> user-space will be unnecessarily toggling this config or may not be
>> setting at disconnected state.
> I think that 'set power_save' commands affects struct
> ieee80211_bss_conf::ps parameter and I don't think it should be used in
> this case. We already have ath10k_config_ps() for 802.11 level of power
> saving.
> Arend again proposed runtime-pm with which I'm not very familiar. But
> why would we want to disable this? Doesn't it make sense to have this
> feature always enabled to save power? wcn3990 is a chip for a mobile
> device anyway.
it might be made for mobile devices but who knows how it is used by the 


Mit freundlichen Grüssen / Regards

Sebastian Gottschall / CTO

NewMedia-NET GmbH - DD-WRT
Firmensitz:  Stubenwaldallee 21a, 64625 Bensheim
Registergericht: Amtsgericht Darmstadt, HRB 25473
Geschäftsführer: Peter Steinhäuser, Christian Scheele
email: s.gottschall at dd-wrt.com
Tel.: +496251-582650 / Fax: +496251-5826565

More information about the ath10k mailing list