Public bug reported:
Any of the platforms we’ve been seeing SATA problems not going to deepest state
leading to other devices not getting there during long idle or s2idle. And it
also prevents the system from entering deeper PC state other than PC3.
Verified the power consumption on some new platforms, it doesn't do too much
difference on the numbers, but it improves.
Suggested from Intel and Dell to contains the 2 commits
The third commit sets by default link power management policy to min_power
Low, the production machines with suspend-to-idle enabled should have the
DEVSLP function been validated.
Those commits do not show up in any public git tree yet, so let's verify
them in oem kernel first, and then will submit to bionic kernel later.
** Affects: linux-oem (Ubuntu)
Assignee: AceLan Kao (acelankao)
Status: In Progress
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SATA device is not going to DEVSLP
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