[PATCH 5.16 53/53] Revert "ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE"

Greg Kroah-Hartman
2022-03-10T14:16:40Z

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit 4287509b4d21e34dc49266c6239920811e189e40 which is
commit dc0075ba7f387fe4c48a8c674b11ab6f374a6acc upstream.

It's been reported to cause problems with a number of Fedora and Arch
Linux users, so drop it for now until that is resolved.

Link: https://lore.kernel.org/r/CAJZ5v0gE52NT=4kN4MkhV3Gx=M5CeMGVHOF0jgTXDb5WwAMs_Q@mail.gmail.com
Link: https://lore.kernel.org/r/31b9d1cd-6a67-218b-4ada-12f72e6f00dc@redhat.com
Reported-by: Hans de Goede <hdegoede@redhat.com>
Reported-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Justin Forbes <jmforbes@linuxtx.org>
Cc: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/acpi/ec.c | 10 ----------
drivers/acpi/sleep.c | 14 ++++++++++----
2 files changed, 10 insertions(+), 14 deletions(-)

--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -2052,16 +2052,6 @@ bool acpi_ec_dispatch_gpe(void)
return true;

/*
- * Cancel the SCI wakeup and process all pending events in case there
- * are any wakeup ones in there.
- *
- * Note that if any non-EC GPEs are active at this point, the SCI will
- * retrigger after the rearming in acpi_s2idle_wake(), so no events
- * should be missed by canceling the wakeup here.
- */
- pm_system_cancel_wakeup();
-
- /*
* Dispatch the EC GPE in-band, but do not report wakeup in any case
* to allow the caller to process events properly after that.
*/
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -739,15 +739,21 @@ bool acpi_s2idle_wake(void)
return true;
}

- /*
- * Check non-EC GPE wakeups and if there are none, cancel the
- * SCI-related wakeup and dispatch the EC GPE.
- */
+ /* Check non-EC GPE wakeups and dispatch the EC GPE. */
if (acpi_ec_dispatch_gpe()) {
pm_pr_dbg("ACPI non-EC GPE wakeup\n");
return true;
}

+ /*
+ * Cancel the SCI wakeup and process all pending events in case
+ * there are any wakeup ones in there.
+ *
+ * Note that if any non-EC GPEs are active at this point, the
+ * SCI will retrigger after the rearming below, so no events
+ * should be missed by canceling the wakeup here.
+ */
+ pm_system_cancel_wakeup();
acpi_os_wait_events_complete();

/*