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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-30 02:25:42 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-30 21:04:47 +0200 |
| commit | e0fa975d85b2ec300b3d69f08bc4933f79316651 (patch) | |
| tree | a6db7c3de5d129fff7209ab5e211a150002e13d5 /drivers/acpi/acpica | |
| parent | ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block() (diff) | |
| download | linux-e0fa975d85b2ec300b3d69f08bc4933f79316651.tar.xz linux-e0fa975d85b2ec300b3d69f08bc4933f79316651.zip | |
ACPICA: Introduce acpi_enable_all_wakeup_gpes()
Add a routine for host OSes to enable all wakeup GPEs and disable
all of the non-wakeup ones at the same time.
It will be used for the handling of GPE wakeup from suspend-to-idle
in Linux.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
| -rw-r--r-- | drivers/acpi/acpica/evxfgpe.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index 0cf159cc6e6d..56710a03c9b0 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -596,6 +596,38 @@ acpi_status acpi_enable_all_runtime_gpes(void) ACPI_EXPORT_SYMBOL(acpi_enable_all_runtime_gpes) +/****************************************************************************** + * + * FUNCTION: acpi_enable_all_wakeup_gpes + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Enable all "wakeup" GPEs and disable all of the other GPEs, in + * all GPE blocks. + * + ******************************************************************************/ + +acpi_status acpi_enable_all_wakeup_gpes(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_enable_all_wakeup_gpes); + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_hw_enable_all_wakeup_gpes(); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_enable_all_wakeup_gpes) + /******************************************************************************* * * FUNCTION: acpi_install_gpe_block |