Comment 0 for bug 1781533

[Impact]
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.

[Test]
Verified the power consumption on some new platforms, it doesn't do too much difference on the numbers, but it improves.

[Fix]
Suggested from Intel and Dell to contains the 2 commits
https://patchwork.kernel.org/patch/10502285/
https://patchwork.kernel.org/patch/10502287/

The third commit sets by default link power management policy to min_power
https://patchwork.kernel.org/patch/10502291/

[Regression Potential]
Low, the production machines with suspend-to-idle enabled should have the DEVSLP function been validated.