APPLIED[E]: [PATCH 0/3][SRU][B-OEM-OSP1/D/E] reduce s2idle power consumption

Seth Forshee seth.forshee at
Fri Aug 23 03:12:23 UTC 2019

On Wed, Aug 21, 2019 at 02:41:02PM +0800, Aaron Ma wrote:
> BugLink:
> [Impact]
> When system goes to suspend-to idle, it's power consumption is around 4+
> w.
> [Fix]
> Some TBT and other ACPI devices share the same power resource, when
> system goes to s2idle.
> PME polling thread continue bringing up devices to D0 mode.
> Use cached ACPI device power state will avoid this issue.
> [Test]
> Verified on 2 hardware. Power consumption of s2idle is reduced to 1w.
> [Regression Potential]
> Medium, upstream patches cherry-picked.
> Since these hareware is only supported by 5.0+ kernel, I set B-OEM-OSP1
> and disco+ kernel tag.

Applied to eoan/master-next.

Before acking for SRU I'd like to know what kind of regression testing
has been done on the patches.


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