Re: [PATCH] platform/x86/amd/pmc: Add T14 Gen2 AMD (20XL) to s2idle quirk list

Ilpo Järvinen <[email protected]>
Newsgroups org.kernel.vger.platform-driver-x86,org.kernel.vger.linux-kernel
Message-ID <178465415823.18499.423675499330587923.b4-ty@b4>
On Fri, 17 Jul 2026 14:07:45 +0800, Yap Weei Choong wrote:

> The ThinkPad T14 Gen 2 AMD was sold under two machine types, 20XK and
> 20XL, but only 20XK has been in the s2idle quirk list since the quirk
> was introduced in commit 455cd867b85b ("platform/x86: thinkpad_acpi:
> Add a s2idle resume quirk for a number of laptops").
> 
> On 20XL machines the firmware SMI handler therefore still runs on the
> NVMe D3->D0 transition when exiting suspend-to-idle. With IOMMU
> translation enabled (the default), this intermittently stalls resume
> for ~10.25 seconds: seven devices across three root ports (nvme, both
> xhci_hcd functions, xhci-pci-renesas, snd_hda_intel x2, snd_rn_pci_acp3x)
> block in pci_pm_resume_noirq and are released simultaneously, consistent
> with all cores being held in SMM.
> 
> [...]

Thank you for your contribution, it has been applied to my local
review-ilpo-next branch. Note it will show up in the public
platform-drivers-x86/review-ilpo-next branch only once I've pushed my
local branch there, which might take a while.

FYI [if applicable to your patch], as per Linus' policy change, also
fixes are mostly routed through for-next unless the fix is for a
commit introduced in the most recent cycle or is clearly a regression
fix.

The list of commits applied:
[1/1] platform/x86/amd/pmc: Add T14 Gen2 AMD (20XL) to s2idle quirk list
      commit: e25fb2258bddbcf70df69d1358be3e1274bdc5f2

--
 i.
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.