ACK/APPLIED[OEM-OSP1-B] Re: [SRU] [PULL] [B/C/D/OEM-B/OEM-OSP1-B] [PATCH 00/10] Fix NVMe high power consumption under S2Idle

Timo Aaltonen tjaalton at ubuntu.com
Wed Jun 19 07:42:00 UTC 2019


On 14.6.2019 11.33, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1808957
> 
> [Impact]
> NVMe controllers drains substantial power during S2Idle.
> Some NVMe controllers even freeze the system upon suspending/resuming.
> 
> [Fix]
> - Make sure all I/Os on NVMe are quiesced so it can stay at deepest
>   power saving state.
> - Let NVMe controller stays at D0 and handles its own power management.
> - Let PCI devices keep at D0 if there's early wakeup event wakes the
>   system up.

applied to osp1 oem-next, thanks


-- 
t



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