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authorBob Moore <robert.moore@intel.com>2012-06-29 06:04:17 +0400
committerLen Brown <len.brown@intel.com>2012-07-14 19:17:29 +0400
commit5816b3430c4b5f31d9c35af1da7be721c9518137 (patch)
tree6d5877c622f05f65cab4040771a6654a5fbf47b3 /drivers/acpi/acpica/evgpeutil.c
parente40d5940396aa4002feeab8323224b5c7f84246c (diff)
downloadlinux-5816b3430c4b5f31d9c35af1da7be721c9518137.tar.xz
ACPICA: Add support for implicit notify on multiple devices
Adds basic support to allow multiple devices to be implicitly notified. This change is partially derived from original commit 981858b("ACPI / ACPICA: Implicit notify for multiple devices") by Rafael. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jung-uk Kim <jkim@freebsd.org> 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/evgpeutil.c')
-rw-r--r--drivers/acpi/acpica/evgpeutil.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index 3c43796b8361..0c33c62bd9eb 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -347,6 +347,8 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
void *context)
{
struct acpi_gpe_event_info *gpe_event_info;
+ struct acpi_gpe_notify_info *notify;
+ struct acpi_gpe_notify_info *next;
u32 i;
u32 j;
@@ -365,10 +367,28 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
ACPI_GPE_DISPATCH_HANDLER) {
+
+ /* Delete an installed handler block */
+
ACPI_FREE(gpe_event_info->dispatch.handler);
gpe_event_info->dispatch.handler = NULL;
gpe_event_info->flags &=
~ACPI_GPE_DISPATCH_MASK;
+ } else if ((gpe_event_info->
+ flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_NOTIFY) {
+
+ /* Delete the implicit notification device list */
+
+ notify = gpe_event_info->dispatch.notify_list;
+ while (notify) {
+ next = notify->next;
+ ACPI_FREE(notify);
+ notify = next;
+ }
+ gpe_event_info->dispatch.notify_list = NULL;
+ gpe_event_info->flags &=
+ ~ACPI_GPE_DISPATCH_MASK;
}
}
}