[Bug 221383] ideapad_laptop: Fn hotkeys stop emitting after s2idle resume on IdeaPad Slim 3 14ARP10 (Ryzen 7735HS)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221383

Daniel Gibson (metalcaedes@gmail.com) changed:

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--- Comment #42 from Daniel Gibson (metalcaedes@gmail.com) ---
Created attachment 309957
  --> https://bugzilla.kernel.org/attachment.cgi?id=309957&action=edit
patch that adds sleeping for 2.5s before suspend for IdeaPad Slim 3 devices or
when setting delay_suspend=1

Now I'm using the existing quirks mechanism (fwbugs_list[]) to enable the
workaround on most devices that identify as LENOVO IdeaPad Slim 3.

It can also be explicitly enabled or disabled with a module argument: 
  amd_pmc.delay_suspend=1
to enable, 0 to disable (even if device is detected as affected) or -1 (the
default) to let fwbugs_list[] decide.

If this is used, a message like "Delaying suspend by 2.5s to avoid platform
bug" or "Delaying suspend by 2.5s because delay_suspend=1" is printed to dmesg,
so one can easily checked if it is active or not.

@Sindre: Please test this, and please disable any other workarounds for this
issue that you may have on your system while testing :)

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