New: USBC resume callback takes far too long, between 650ms and 1200ms

https://bugzilla.kernel.org/show_bug.cgi?id=216706

            Bug ID: 216706
           Summary: USBC resume callback takes far too long, between 650ms
                    and 1200ms
           Product: Drivers
           Version: 2.5
    Kernel Version: 6.1.0-rc2
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
          Assignee: [email protected]
          Reporter: [email protected]
            Blocks: 178231
        Regression: No

Created attachment 303218
--> https://bugzilla.kernel.org/attachment.cgi?id=303218&action=edit
lenb-Dell-XPS-13-9310_freeze.html

The new USBC resume callback is taking far too long in the resume phase. I bisected the behavior to this commit:

[10402] 4e3a50293c2b21961f02e1afa2f17d3a1a90c7c8 is the first bad commit [10402] commit 4e3a50293c2b21961f02e1afa2f17d3a1a90c7c8 [10402] Author: Heikki Krogerus <[email protected]>
[10402] Date: Fri Oct 7 13:09:51 2022 +0300
[10402]
[10402] usb: typec: ucsi: acpi: Implement resume callback [10402]
[10402] The ACPI driver needs to resume the interface by calling [10402] ucsi_resume(). Otherwise we may fail to detect connections [10402] and disconnections that happen while the system is [10402] suspended.
[10402]
[10402] Link: https://bugzilla.kernel.org/show_bug.cgi?id=210425
[10402] Fixes: a94ecde41f7e ("usb: typec: ucsi: ccg: enable runtime pm support")
[10402] Cc: <[email protected]>
[10402] Signed-off-by: Heikki Krogerus <[email protected]> [10402] Link:
https://lore.kernel.org/r/[email protected]
[10402] Signed-off-by: Greg Kroah-Hartman <[email protected]>

I have timelines from 7 separate machines that are now affected but this behavior. We have a guidline that neither suspend or resume should take longer than a second, and this is causing us problems.

Referenced Bugs:

https://bugzilla.kernel.org/show_bug.cgi?id=178231
[Bug 178231] Meta-bug: Linux suspend-to-mem and freeze performance optimization

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https://bugzilla.kernel.org/show_bug.cgi?id=216706

--- Comment #1 from Todd Brandt ([email protected]) --- Created attachment 303219
--> https://bugzilla.kernel.org/attachment.cgi?id=303219&action=edit
lenb-Dell-XPS-13-9315_freeze.html

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https://bugzilla.kernel.org/show_bug.cgi?id=216706

--- Comment #2 from Todd Brandt ([email protected]) --- Created attachment 303220
--> https://bugzilla.kernel.org/attachment.cgi?id=303220&action=edit
otcpl-adl-m-1_freeze.html

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--- Comment #3 from Todd Brandt ([email protected]) --- Created attachment 303221
--> https://bugzilla.kernel.org/attachment.cgi?id=303221&action=edit
otcpl-adl-n-1_freeze.html

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--- Comment #4 from Todd Brandt ([email protected]) --- Created attachment 303222
--> https://bugzilla.kernel.org/attachment.cgi?id=303222&action=edit
otcpl-dell-9370-kbl_mem.html

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--- Comment #5 from Todd Brandt ([email protected]) --- Created attachment 303223
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otcpl-hp-spectre-tgl_freeze.html

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--- Comment #6 from Todd Brandt ([email protected]) --- Created attachment 303224
--> https://bugzilla.kernel.org/attachment.cgi?id=303224&action=edit
otcpl-lenovo-tix1-tgl_freeze.html

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What is making this arbritrary requirement? If it is an issue, please provide a working change to resolve it as your group can help implement and test this.

thanks,

greg k-h