Re: [PATCH] ACPI: PCI: take native PME control on Apple machines

[Darrell Gum]

On Thu, 24 Sep 2026 10:28:59 -0300, Francisco Beltrán Millalén wrote:
> Since commit 7bc5a2bad0b8 ("ACPI: Support _OSI("Darwin") correctly")
[...]

Tested on a second MacBookPro14,3 on 7.2.5 (Omarchy's linux-omarchy
7.2.5-3). Your PCI/PM v2 series and the Alpine Ridge quirk were
applied as well. The full report is in reply to the series:
https://lore.kernel.org/all/20260930141914.6678-1-fbeltranmillalen@xxxxxxxxx/

Stock 7.2.5: with both Thunderbolt xHCIs (8086:15d4 at 07:00.0 and
7d:00.0) runtime-suspended, plugging a USB 3 stick into any USB-C port
produced no kernel messages at all. With power/control=on, it
enumerated at SuperSpeed immediately.

With this patch, _OSC reads "OS assumes control of [PCIeHotplug
SHPCHotplug PME AER PCIeCapability LTR DPC]". With both controllers
left at power/control=auto, the same stick enumerated at SuperSpeed
within about 1 s, and 7d:00.0 runtime-resumed on its own. A later
run gave the same result: about 1 s when plugged in before a lid-close
S3, and about 3 s for a replug about 2 min after resume, still with
power/control=auto.

The patches were tested together, not bisected. This is the result
that maps most directly onto this one patch.

Tested-by: Darrell Gum <d@xxxxxxxx>