From 981858bd7a401aa9607d9f430d5de920025fc3ea Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 24 Feb 2011 19:59:21 +0100 Subject: ACPI / ACPICA: Implicit notify for multiple devices Commit bba63a2 (ACPICA: Implicit notify support) introduced a mechanism that causes a notify request of type ACPI_NOTIFY_DEVICE_WAKE to be queued automatically by acpi_ev_asynch_execute_gpe_method() for the device whose _PRW points to the GPE being handled if that GPE is not associated with an _Lxx/_Exx method. However, it turns out that on some systems there are multiple devices with _PRW pointing to the same GPE without _Lxx/_Exx and the mechanism introduced by commit bba63a2 needs to be extended so that "implicit" notify requests of type ACPI_NOTIFY_DEVICE_WAKE can be queued automatically for all those devices at the same time. Reported-and-tested-by: Matthew Garrett Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/aclocal.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/acpi/acpica/aclocal.h') diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 54784bb42cec..edc25867ad9d 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -416,10 +416,15 @@ struct acpi_gpe_handler_info { u8 originally_enabled; /* True if GPE was originally enabled */ }; +struct acpi_gpe_notify_object { + struct acpi_namespace_node *node; + struct acpi_gpe_notify_object *next; +}; + union acpi_gpe_dispatch_info { struct acpi_namespace_node *method_node; /* Method node for this GPE level */ struct acpi_gpe_handler_info *handler; /* Installed GPE handler */ - struct acpi_namespace_node *device_node; /* Parent _PRW device for implicit notify */ + struct acpi_gpe_notify_object device; /* List of _PRW devices for implicit notify */ }; /* -- cgit v1.2.3