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authorRafael J. Wysocki <rjw@sisk.pl>2010-02-17 17:41:07 -0500
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-02-22 19:20:45 -0500
commit9630bdd9b15d2f489c646d8bc04b60e53eb5ec78 (patch)
treeed99f729cb9142492e0cdf2f7d19f2f33069a3f4 /drivers/acpi/acpica/acevents.h
parentc39fae1416d59fd565606793f090cebe3720d50d (diff)
ACPI: Use GPE reference counting to support shared GPEs
ACPI GPEs may map to multiple devices. The current GPE interface only provides a mechanism for enabling and disabling GPEs, making it difficult to change the state of GPEs at runtime without extensive cooperation between devices. Add an API to allow devices to indicate whether or not they want their device's GPE to be enabled for both runtime and wakeup events. Remove the old GPE type handling entirely, which gets rid of various quirks, like the implicit disabling with GPE type setting. This requires a small amount of rework in order to ensure that non-wake GPEs are enabled by default to preserve existing behaviour. Based on patches from Matthew Garrett <mjg@redhat.com>. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/acpi/acpica/acevents.h')
-rw-r--r--drivers/acpi/acpica/acevents.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 0bba148a2c61..197aa4f39640 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -76,8 +76,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
76 * evgpe - GPE handling and dispatch 76 * evgpe - GPE handling and dispatch
77 */ 77 */
78acpi_status 78acpi_status
79acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, 79acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info);
80 u8 type);
81 80
82acpi_status 81acpi_status
83acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, 82acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
@@ -122,9 +121,6 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info,
122u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list); 121u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);
123 122
124acpi_status 123acpi_status
125acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type);
126
127acpi_status
128acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info); 124acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info);
129 125
130acpi_status acpi_ev_gpe_initialize(void); 126acpi_status acpi_ev_gpe_initialize(void);