diff options
| author | Lin Ming <ming.m.lin@intel.com> | 2010-12-13 13:39:17 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-01-12 04:27:00 -0500 |
| commit | bba63a296ffab20e08d9e8252d2f0d99050ac859 (patch) | |
| tree | 53d4abf7dc5fcf8b563a6cce554312d800c760e0 /drivers/acpi/acpica/evgpeblk.c | |
| parent | 5a284cd75d635e3c5db0210dc9a9a44c6839f460 (diff) | |
ACPICA: Implicit notify support
This feature provides an automatic device notification for wake devices
when a wakeup GPE occurs and there is no corresponding GPE method or
handler. Rather than ignoring such a GPE, an implicit AML Notify
operation is performed on the parent device object.
This feature is not part of the ACPI specification and is provided for
Windows compatibility only.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/evgpeblk.c')
| -rw-r--r-- | drivers/acpi/acpica/evgpeblk.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 2a445dfcfdb..e2e8164bb81 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -472,9 +472,14 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; gpe_event_info = &gpe_block->event_info[gpe_index]; - /* Ignore GPEs that have no corresponding _Lxx/_Exx method */ - - if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD) + /* + * Ignore GPEs that have no corresponding _Lxx/_Exx method + * and GPEs that are used to wake the system + */ + if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == + ACPI_GPE_DISPATCH_NONE) + || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) + == ACPI_GPE_DISPATCH_HANDLER) || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) { continue; } |