diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-15 13:03:39 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-23 09:46:20 +0200 |
| commit | 9089f16e053afc5e18feaeb9f64cc7c90d6bd687 (patch) | |
| tree | 4ac8b7173fdc988e8acc4d5c268833bc398866e7 /drivers/acpi/ec.c | |
| parent | 6921de898ba8f2ec91cfea70e7160b89c477382e (diff) | |
ACPI: EC: Return bool from acpi_ec_dispatch_gpe()
On some systems, if suspend-to-idle is used, the EC may signal system
wakeup events (power button events, for example) as well as events
that should not cause the system to resume and acpi_ec_dispatch_gpe()
needs to be called to determine whether or not the system should
resume then. In particular, if acpi_ec_dispatch_gpe() doesn't detect
any EC events at all, the system should remain suspended, so it is
useful to know when that is the case.
For this reason, make acpi_ec_dispatch_gpe() return a bool value
indicating whether or not any EC events have been detected by it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/acpi/ec.c')
| -rw-r--r-- | drivers/acpi/ec.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index c33756ed3304..58c7ad402d8d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -1060,10 +1060,15 @@ void acpi_ec_set_gpe_wake_mask(u8 action) acpi_set_gpe_wake_mask(NULL, first_ec->gpe, action); } -void acpi_ec_dispatch_gpe(void) +bool acpi_ec_dispatch_gpe(void) { - if (first_ec) - acpi_dispatch_gpe(NULL, first_ec->gpe); + u32 ret; + + if (!first_ec) + return false; + + ret = acpi_dispatch_gpe(NULL, first_ec->gpe); + return ret == ACPI_INTERRUPT_HANDLED; } /* -------------------------------------------------------------------------- |