APPLIED: [PATCH 0/1][SRU][Impish] Fix wakeup interrupts handling

Stefan Bader stefan.bader at canonical.com
Thu Mar 17 16:20:13 UTC 2022


On 24.02.22 08:02, You-Sheng Yang wrote:
> BugLink: https://bugs.launchpad.net/bugs/1961739
> 
> [Impact]
> 
> On some platforms, PS/2 keyboard cannot wake system up from s2idle.
> 
> [Fix]
> 
> Mainline commit cb1f65c1e142 ("PM: s2idle: ACPI: Fix wakeup interrupts
> handling") picks up the missed wakeup interrupt.
> 
> [Test Case]
> 
> Use button press on PS/2 keyboard to wake suspended system.
> 
> [Where problems could occur]
> 
> It may still discard irqs under some very rare corner cases that are not
> yet identified, but the implementation can be extended easily when
> necessary.
> 
> [Other Info]
> 
> This affects 5.4+ kernels and has been proposed for linux-stable. While
> this is merged in v5.17-rc4, linux-unstable will have this soon so
> nomination is skipped.
> 
> Rafael J. Wysocki (1):
>    PM: s2idle: ACPI: Fix wakeup interrupts handling
> 
>   drivers/acpi/sleep.c        |  1 +
>   drivers/base/power/wakeup.c | 41 ++++++++++++++++++++++++++++++-------
>   include/linux/suspend.h     |  4 ++--
>   kernel/power/main.c         |  5 ++++-
>   kernel/power/process.c      |  2 +-
>   kernel/power/suspend.c      |  2 --
>   6 files changed, 42 insertions(+), 13 deletions(-)
> 

Applied to impish:linux/master-next. Thanks.

-Stefan

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