[PATCH 0/2][SRU][J/M/U] Fix ADL: System enabled AHCI can't get into s0ix when attached ODD

[Koba Ko]

BugLink: https://bugs.launchpad.net/bugs/2037493

[Impact]
System can't enter suspend on AHCI mode,
the CPU FAN and System FAN is running, PSU LED is on.
When fail to enter suspend, remove ODD, the system can successfully enter suspend again.

[Fix]
Enable LPM on Alder Lake-P AHCI.

[Test Cases]
1. enabled AHCI on target machine.
2. boot with kernel applied fix.
3. suspend then check slp_s0_residency_usec&package_cstate_show
~~~
$ sudo cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec;sudo cat /sys/kernel/debug/pmc_core/package_cstate_show
4951200
Package C2 : 63571033
Package C3 : 6212
Package C6 : 5633477
Package C7 : 0
Package C8 : 0
Package C9 : 0
Package C10 : 5255561
$ sudo rtcwake -m mem -s 10
rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0
$ sudo cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec;sudo cat /sys/kernel/debug/pmc_core/package_cstate_show
12965280
Package C2 : 75052691
Package C3 : 46989
Package C6 : 8108332
Package C7 : 0
Package C8 : 0
Package C9 : 0
Package C10 : 13628111
~~~

[where the issue could happen]
Medium, Intel promise there's no issue of ADL AHCI and
they will take responsibility after regression.
Intel also take LPM as POR so they will fix any issues.

[Misc]
Because the board_ahci_mobile is still not modified to board_ahci_low_power on Jammy,
provide a single patch for Jammy.

For generic J/M, passed the all arch compilations on cbd,
Jammy,
~~~
$ git push j_cbd
Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: *** kernel-cbd *********************************************************
remote: * Queueing builds (your 'ubuntu_jammy_next'); ok to interrupt
remote: * For results: ssh cbd ls kobako-jammy-f5146c67dd2d-XWAJ
remote: * 0/1 workers busy, 0 builds queued
remote: 2023-11-17 19:50:25 kobako-jammy-f5146c67dd2d-XWAJ/amd64/BUILD-OK
remote: 2023-11-17 20:18:29 kobako-jammy-f5146c67dd2d-XWAJ/arm64/BUILD-OK
remote: 2023-11-17 20:01:41 kobako-jammy-f5146c67dd2d-XWAJ/armhf/BUILD-OK
remote: 2023-11-17 20:31:51 kobako-jammy-f5146c67dd2d-XWAJ/ppc64el/BUILD-OK
remote: 2023-11-17 20:37:25 kobako-jammy-f5146c67dd2d-XWAJ/s390x/BUILD-OK
remote: ************************************************************************
To cbd.kernel:jammy.git
 * [new branch] ubuntu_jammy_next -> ubuntu_jammy_next
~~~
Mantic,
~~~
$ git push m_cbd
Enumerating objects: 102, done.
Counting objects: 100% (102/102), done.
Delta compression using up to 8 threads
Compressing objects: 100% (17/17), done.
Writing objects: 100% (61/61), 252.10 KiB | 2.23 MiB/s, done.
Total 61 (delta 46), reused 54 (delta 41), pack-reused 0
remote: *** kernel-cbd *********************************************************
remote: * Queueing builds (your 'ubuntu_mantic_next'); ok to interrupt
remote: * For results: ssh cbd ls kobako-mantic-e489d3bb608c-9LiJ
remote: * 0/1 workers busy, 0 builds queued
remote: 2023-11-17 20:58:33 kobako-mantic-e489d3bb608c-9LiJ/amd64/BUILD-OK
remote: 2023-11-17 21:30:32 kobako-mantic-e489d3bb608c-9LiJ/arm64/BUILD-OK
remote: 2023-11-17 21:09:18 kobako-mantic-e489d3bb608c-9LiJ/armhf/BUILD-OK
remote: 2023-11-17 21:45:50 kobako-mantic-e489d3bb608c-9LiJ/ppc64el/BUILD-OK
remote: 2023-11-17 21:54:30 kobako-mantic-e489d3bb608c-9LiJ/s390x/BUILD-OK
remote: ************************************************************************
To cbd.kernel:mantic.git
 * [new branch] ubuntu_mantic_next -> ubuntu_mantic_next
~~~

For Unstable, successfully compiled with the Mantic configuration and without dkms.
~~~
Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
remote: *** kernel-cbd *********************************************************
remote: * Queueing builds (your 'ubuntu_unstable_next'); ok to interrupt
remote: * For results: ssh cbd ls kobako-mantic-dc0405f4bd4c-VZvy
remote: * 0/1 workers busy, 0 builds queued
remote: 2023-11-18 22:35:41 kobako-mantic-dc0405f4bd4c-VZvy/amd64/BUILD-OK
remote: 2023-11-18 23:03:15 kobako-mantic-dc0405f4bd4c-VZvy/arm64/BUILD-OK
remote: 2023-11-18 22:46:15 kobako-mantic-dc0405f4bd4c-VZvy/armhf/BUILD-OK
remote: 2023-11-18 23:16:02 kobako-mantic-dc0405f4bd4c-VZvy/ppc64el/BUILD-OK
remote: 2023-11-18 23:22:02 kobako-mantic-dc0405f4bd4c-VZvy/s390x/BUILD-OK
remote: ************************************************************************
To cbd.kernel:mantic.git
 * [new branch] ubuntu_unstable_next -> ubuntu_unstable_next
~~~

Mika Westerberg (1):
  ata: ahci: Add Intel Alder Lake-P AHCI controller to low power
    chipsets list

 drivers/ata/ahci.c | 1 +
 1 file changed, 1 insertion(+)

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2.34.1