diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-02-04 18:31:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-16 12:52:54 +0100 |
| commit | 9d09cb110868f027d015fbc6c64ba1e45a69a192 (patch) | |
| tree | 7968b6c6db8564882479b20a9262a1c1f8320a5b /drivers/acpi | |
| parent | a2ed7b29d0673ba361546e2d87dbbed149456c45 (diff) | |
ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE
commit dc0075ba7f387fe4c48a8c674b11ab6f374a6acc upstream.
Commit 4a9af6cac050 ("ACPI: EC: Rework flushing of EC work while
suspended to idle") made acpi_ec_dispatch_gpe() check
pm_wakeup_pending(), but that is before canceling the SCI wakeup,
so pm_wakeup_pending() is always true. This causes the loop in
acpi_ec_dispatch_gpe() to always terminate after one iteration which
may not be correct.
Address this issue by canceling the SCI wakeup earlier, from
acpi_ec_dispatch_gpe() itself.
Fixes: 4a9af6cac050 ("ACPI: EC: Rework flushing of EC work while suspended to idle")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/ec.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 14 |
2 files changed, 14 insertions, 10 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index e5b92958c299..ce9a570f217a 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -2003,6 +2003,16 @@ 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. */ diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index b0e23e3fe0d5..cd590b4793e0 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -1003,19 +1003,13 @@ static bool acpi_s2idle_wake(void) if (acpi_check_wakeup_handlers()) return true; - /* Check non-EC GPE wakeups and dispatch the EC GPE. */ + /* + * Check non-EC GPE wakeups and if there are none, cancel the + * SCI-related wakeup and dispatch the EC GPE. + */ if (acpi_ec_dispatch_gpe()) 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(); /* |