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Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

Browse source 
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (48 commits)
  x86/PCI: Prevent mmconfig memory corruption
  ACPI: Use GPE reference counting to support shared GPEs
  x86/PCI: use host bridge _CRS info by default on 2008 and newer machines
  PCI: augment bus resource table with a list
  PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
  PCI: read bridge windows before filling in subtractive decode resources
  PCI: split up pci_read_bridge_bases()
  PCIe PME: use pci_pcie_cap()
  PCI PM: Run-time callbacks for PCI bus type
  PCIe PME: use pci_is_pcie()
  PCI / ACPI / PM: Platform support for PCI PME wake-up
  ACPI / ACPICA: Multiple system notify handlers per device
  ACPI / PM: Add more run-time wake-up fields
  ACPI: Use GPE reference counting to support shared GPEs
  PCI PM: Make it possible to force using INTx for PCIe PME signaling
  PCI PM: PCIe PME root port service driver
  PCI PM: Add function for checking PME status of devices
  PCI: mark is_pcie obsolete
  PCI: set PCI_PREF_RANGE_TYPE_64 in pci_bridge_check_ranges
  PCI: pciehp: second try to get big range for pcie devices
  ...
This commit is contained in:
Linus Torvalds 2010-02-26 10:35:27 -08:00
commit 68c6b85984
113 changed files with 3007 additions and 1360 deletions
Download patch file Download diff file Expand all files Collapse all files

10
drivers/acpi/acpica/acevents.h
View file

@ -76,12 +76,9 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
* evgpe - GPE handling and dispatch
*/
acpi_status
acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
u8 type);
acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info);
acpi_status
acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
u8 write_to_hardware);
acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
@ -121,9 +118,6 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info,
u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);
acpi_status
acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type);
acpi_status
acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info);

2
drivers/acpi/acpica/aclocal.h
View file

@ -426,6 +426,8 @@ struct acpi_gpe_event_info {
struct acpi_gpe_register_info *register_info; /* Backpointer to register info */
u8 flags; /* Misc info about this GPE */
u8 gpe_number; /* This GPE */
u8 runtime_count;
u8 wakeup_count;
};
/* Information about a GPE register pair, one per each status/enable pair in an array */

2
drivers/acpi/acpica/acobject.h
View file

@ -287,8 +287,10 @@ struct acpi_object_buffer_field {
struct acpi_object_notify_handler {
ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */
u32 handler_type;
acpi_notify_handler handler;
void *context;
struct acpi_object_notify_handler *next;
};
struct acpi_object_addr_handler {

161
drivers/acpi/acpica/evgpe.c
View file

@ -52,56 +52,11 @@ ACPI_MODULE_NAME("evgpe")
/* Local prototypes */
static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context);
/*******************************************************************************
*
* FUNCTION: acpi_ev_set_gpe_type
*
* PARAMETERS: gpe_event_info - GPE to set
* Type - New type
*
* RETURN: Status
*
* DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run)
*
******************************************************************************/
acpi_status
acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type)
{
acpi_status status;
ACPI_FUNCTION_TRACE(ev_set_gpe_type);
/* Validate type and update register enable masks */
switch (type) {
case ACPI_GPE_TYPE_WAKE:
case ACPI_GPE_TYPE_RUNTIME:
case ACPI_GPE_TYPE_WAKE_RUN:
break;
default:
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Disable the GPE if currently enabled */
status = acpi_ev_disable_gpe(gpe_event_info);
/* Clear the type bits and insert the new Type */
gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK;
gpe_event_info->flags |= type;
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_update_gpe_enable_masks
*
* PARAMETERS: gpe_event_info - GPE to update
* Type - What to do: ACPI_GPE_DISABLE or
* ACPI_GPE_ENABLE
*
* RETURN: Status
*
@ -110,8 +65,7 @@ acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type)
******************************************************************************/
acpi_status
acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
u8 type)
acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
{
struct acpi_gpe_register_info *gpe_register_info;
u8 register_bit;
@ -127,37 +81,14 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
(1 <<
(gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
/* 1) Disable case. Simply clear all enable bits */
ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, register_bit);
ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
if (type == ACPI_GPE_DISABLE) {
ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
register_bit);
ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
return_ACPI_STATUS(AE_OK);
}
/* 2) Enable case. Set/Clear the appropriate enable bits */
switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
case ACPI_GPE_TYPE_WAKE:
ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
break;
case ACPI_GPE_TYPE_RUNTIME:
ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
register_bit);
if (gpe_event_info->runtime_count)
ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
break;
case ACPI_GPE_TYPE_WAKE_RUN:
if (gpe_event_info->wakeup_count)
ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
break;
default:
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
return_ACPI_STATUS(AE_OK);
}
@ -167,8 +98,6 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
* FUNCTION: acpi_ev_enable_gpe
*
* PARAMETERS: gpe_event_info - GPE to enable
* write_to_hardware - Enable now, or just mark data structs
* (WAKE GPEs should be deferred)
*
* RETURN: Status
*
@ -176,9 +105,7 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
*
******************************************************************************/
acpi_status
acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
u8 write_to_hardware)
acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
{
acpi_status status;
@ -186,47 +113,20 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
/* Make sure HW enable masks are updated */
status =
acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE);
if (ACPI_FAILURE(status)) {
status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
}
/* Mark wake-enabled or HW enable, or both */
switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
case ACPI_GPE_TYPE_WAKE:
if (gpe_event_info->runtime_count) {
/* Clear the GPE (of stale events), then enable it */
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
break;
case ACPI_GPE_TYPE_WAKE_RUN:
ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
/*lint -fallthrough */
case ACPI_GPE_TYPE_RUNTIME:
ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
if (write_to_hardware) {
/* Clear the GPE (of stale events), then enable it */
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Enable the requested runtime GPE */
status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
}
break;
default:
return_ACPI_STATUS(AE_BAD_PARAMETER);
/* Enable the requested runtime GPE */
status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
}
return_ACPI_STATUS(AE_OK);
@ -252,34 +152,9 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
/* Make sure HW enable masks are updated */
status =
acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE);
if (ACPI_FAILURE(status)) {
status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
}
/* Clear the appropriate enabled flags for this GPE */
switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
case ACPI_GPE_TYPE_WAKE:
ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
break;
case ACPI_GPE_TYPE_WAKE_RUN:
ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
/* fallthrough */
case ACPI_GPE_TYPE_RUNTIME:
/* Disable the requested runtime GPE */
ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
break;
default:
break;
}
/*
* Even if we don't know the GPE type, make sure that we always
@ -521,7 +396,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
/* Set the GPE flags for return to enabled state */
(void)acpi_ev_enable_gpe(gpe_event_info, FALSE);
(void)acpi_ev_update_gpe_enable_masks(gpe_event_info);
/*
* Take a snapshot of the GPE info for this level - we copy the info to

87
drivers/acpi/acpica/evgpeblk.c
View file

@ -258,7 +258,6 @@ acpi_ev_save_method_info(acpi_handle obj_handle,
u32 gpe_number;
char name[ACPI_NAME_SIZE + 1];
u8 type;
acpi_status status;
ACPI_FUNCTION_TRACE(ev_save_method_info);
@ -325,26 +324,20 @@ acpi_ev_save_method_info(acpi_handle obj_handle,
/*
* Now we can add this information to the gpe_event_info block for use
* during dispatch of this GPE. Default type is RUNTIME, although this may
* change when the _PRW methods are executed later.
* during dispatch of this GPE.
*/
gpe_event_info =
&gpe_block->event_info[gpe_number - gpe_block->block_base_number];
gpe_event_info->flags = (u8)
(type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME);
gpe_event_info->flags = (u8) (type | ACPI_GPE_DISPATCH_METHOD);
gpe_event_info->dispatch.method_node =
(struct acpi_namespace_node *)obj_handle;
/* Update enable mask, but don't enable the HW GPE as of yet */
status = acpi_ev_enable_gpe(gpe_event_info, FALSE);
ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
"Registered GPE method %s as GPE number 0x%.2X\n",
name, gpe_number));
return_ACPI_STATUS(status);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
@ -454,20 +447,7 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
gpe_block->
block_base_number];
/* Mark GPE for WAKE-ONLY but WAKE_DISABLED */
gpe_event_info->flags &=
~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED);
status =
acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE);
if (ACPI_FAILURE(status)) {
goto cleanup;
}
status =
acpi_ev_update_gpe_enable_masks(gpe_event_info,
ACPI_GPE_DISABLE);
gpe_event_info->flags |= ACPI_GPE_CAN_WAKE;
}
cleanup:
@ -989,7 +969,6 @@ acpi_status
acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
struct acpi_gpe_block_info *gpe_block)
{
acpi_status status;
struct acpi_gpe_event_info *gpe_event_info;
struct acpi_gpe_walk_info gpe_info;
u32 wake_gpe_count;
@ -1019,42 +998,50 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
gpe_info.gpe_block = gpe_block;
gpe_info.gpe_device = gpe_device;
status =
acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
acpi_ev_match_prw_and_gpe, NULL,
&gpe_info, NULL);
}
/*
* Enable all GPEs in this block that have these attributes:
* 1) are "runtime" or "run/wake" GPEs, and
* 2) have a corresponding _Lxx or _Exx method
*
* Any other GPEs within this block must be enabled via the
* acpi_enable_gpe() external interface.
* Enable all GPEs that have a corresponding method and aren't
* capable of generating wakeups. Any other GPEs within this block
* must be enabled via the acpi_enable_gpe() interface.
*/
wake_gpe_count = 0;
gpe_enabled_count = 0;
if (gpe_device == acpi_gbl_fadt_gpe_device)
gpe_device = NULL;
for (i = 0; i < gpe_block->register_count; i++) {
for (j = 0; j < 8; j++) {
for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
acpi_status status;
acpi_size gpe_index;
int gpe_number;
/* Get the info block for this particular GPE */
gpe_index = (acpi_size)i * ACPI_GPE_REGISTER_WIDTH + j;
gpe_event_info = &gpe_block->event_info[gpe_index];
gpe_event_info = &gpe_block->event_info[((acpi_size) i *
ACPI_GPE_REGISTER_WIDTH)
+ j];
if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
ACPI_GPE_DISPATCH_METHOD) &&
(gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) {
gpe_enabled_count++;
}
if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) {
if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) {
wake_gpe_count++;
if (acpi_gbl_leave_wake_gpes_disabled)
continue;
}
if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD))
continue;
gpe_number = gpe_index + gpe_block->block_base_number;
status = acpi_enable_gpe(gpe_device, gpe_number,
ACPI_GPE_TYPE_RUNTIME);
if (ACPI_FAILURE(status))
ACPI_ERROR((AE_INFO,
"Failed to enable GPE %02X\n",
gpe_number));
else
gpe_enabled_count++;
}
}
@ -1062,15 +1049,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
"Found %u Wake, Enabled %u Runtime GPEs in this block\n",
wake_gpe_count, gpe_enabled_count));
/* Enable all valid runtime GPEs found above */
status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL);
if (ACPI_FAILURE(status)) {
ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p",
gpe_block));
}
return_ACPI_STATUS(status);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************

12
drivers/acpi/acpica/evmisc.c
View file

@ -259,9 +259,15 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
handler_obj = notify_info->notify.handler_obj;
if (handler_obj) {
handler_obj->notify.handler(notify_info->notify.node,
notify_info->notify.value,
handler_obj->notify.context);
struct acpi_object_notify_handler *notifier;
notifier = &handler_obj->notify;
while (notifier) {
notifier->handler(notify_info->notify.node,
notify_info->notify.value,
notifier->context);
notifier = notifier->next;
}
}
/* All done with the info object */

189
drivers/acpi/acpica/evxface.c
View file

@ -216,6 +216,72 @@ acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
/*******************************************************************************
*
* FUNCTION: acpi_populate_handler_object
*
* PARAMETERS: handler_obj - Handler object to populate
* handler_type - The type of handler:
* ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
* ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
* ACPI_ALL_NOTIFY: both system and device
* handler - Address of the handler
* context - Value passed to the handler on each GPE
* next - Address of a handler object to link to
*
* RETURN: None
*
* DESCRIPTION: Populate a handler object.
*
******************************************************************************/
static void
acpi_populate_handler_object(struct acpi_object_notify_handler *handler_obj,
u32 handler_type,
acpi_notify_handler handler, void *context,
struct acpi_object_notify_handler *next)
{
handler_obj->handler_type = handler_type;
handler_obj->handler = handler;
handler_obj->context = context;
handler_obj->next = next;
}
/*******************************************************************************
*
* FUNCTION: acpi_add_handler_object
*
* PARAMETERS: parent_obj - Parent of the new object
* handler - Address of the handler
* context - Value passed to the handler on each GPE
*
* RETURN: Status
*
* DESCRIPTION: Create a new handler object and populate it.
*
******************************************************************************/
static acpi_status
acpi_add_handler_object(struct acpi_object_notify_handler *parent_obj,
acpi_notify_handler handler, void *context)
{
struct acpi_object_notify_handler *handler_obj;
/* The parent must not be a defice notify handler object. */
if (parent_obj->handler_type & ACPI_DEVICE_NOTIFY)
return AE_BAD_PARAMETER;
handler_obj = ACPI_ALLOCATE_ZEROED(sizeof(*handler_obj));
if (!handler_obj)
return AE_NO_MEMORY;
acpi_populate_handler_object(handler_obj,
ACPI_SYSTEM_NOTIFY,
handler, context,
parent_obj->next);
parent_obj->next = handler_obj;
return AE_OK;
}
/*******************************************************************************
*
* FUNCTION: acpi_install_notify_handler
@ -316,15 +382,32 @@ acpi_install_notify_handler(acpi_handle device,
obj_desc = acpi_ns_get_attached_object(node);
if (obj_desc) {
/* Object exists - make sure there's no handler */
/* Object exists. */
if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
obj_desc->common_notify.system_notify) ||
((handler_type & ACPI_DEVICE_NOTIFY) &&
obj_desc->common_notify.device_notify)) {
/* For a device notify, make sure there's no handler. */
if ((handler_type & ACPI_DEVICE_NOTIFY) &&
obj_desc->common_notify.device_notify) {
status = AE_ALREADY_EXISTS;
goto unlock_and_exit;
}
/* System notifies may have more handlers installed. */
notify_obj = obj_desc->common_notify.system_notify;
if ((handler_type & ACPI_SYSTEM_NOTIFY) && notify_obj) {
struct acpi_object_notify_handler *parent_obj;
if (handler_type & ACPI_DEVICE_NOTIFY) {
status = AE_ALREADY_EXISTS;
goto unlock_and_exit;
}
parent_obj = &notify_obj->notify;
status = acpi_add_handler_object(parent_obj,
handler,
context);
goto unlock_and_exit;
}
} else {
/* Create a new object */
@ -356,9 +439,10 @@ acpi_install_notify_handler(acpi_handle device,
goto unlock_and_exit;
}
notify_obj->notify.node = node;
notify_obj->notify.handler = handler;
notify_obj->notify.context = context;
acpi_populate_handler_object(&notify_obj->notify,
handler_type,
handler, context,
NULL);
if (handler_type & ACPI_SYSTEM_NOTIFY) {
obj_desc->common_notify.system_notify = notify_obj;
@ -418,6 +502,10 @@ acpi_remove_notify_handler(acpi_handle device,
goto exit;
}
/* Make sure all deferred tasks are completed */
acpi_os_wait_events_complete(NULL);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto exit;
@ -445,15 +533,6 @@ acpi_remove_notify_handler(acpi_handle device,
goto unlock_and_exit;
}
/* Make sure all deferred tasks are completed */
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_os_wait_events_complete(NULL);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto exit;
}
if (handler_type & ACPI_SYSTEM_NOTIFY) {
acpi_gbl_system_notify.node = NULL;
acpi_gbl_system_notify.handler = NULL;
@ -488,28 +567,60 @@ acpi_remove_notify_handler(acpi_handle device,
/* Object exists - make sure there's an existing handler */
if (handler_type & ACPI_SYSTEM_NOTIFY) {
struct acpi_object_notify_handler *handler_obj;
struct acpi_object_notify_handler *parent_obj;
notify_obj = obj_desc->common_notify.system_notify;
if (!notify_obj) {
status = AE_NOT_EXIST;
goto unlock_and_exit;
}
if (notify_obj->notify.handler != handler) {
handler_obj = &notify_obj->notify;
parent_obj = NULL;
while (handler_obj->handler != handler) {
if (handler_obj->next) {
parent_obj = handler_obj;
handler_obj = handler_obj->next;
} else {
break;
}
}
if (handler_obj->handler != handler) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
/* Make sure all deferred tasks are completed */
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_os_wait_events_complete(NULL);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto exit;
/*
* Remove the handler. There are three possible cases.
* First, we may need to remove a non-embedded object.
* Second, we may need to remove the embedded object's
* handler data, while non-embedded objects exist.
* Finally, we may need to remove the embedded object
* entirely along with its container.
*/
if (parent_obj) {
/* Non-embedded object is being removed. */
parent_obj->next = handler_obj->next;
ACPI_FREE(handler_obj);
} else if (notify_obj->notify.next) {
/*
* The handler matches the embedded object, but
* there are more handler objects in the list.
* Replace the embedded object's data with the
* first next object's data and remove that
* object.
*/
parent_obj = &notify_obj->notify;
handler_obj = notify_obj->notify.next;
*parent_obj = *handler_obj;
ACPI_FREE(handler_obj);
} else {
/* No more handler objects in the list. */
obj_desc->common_notify.system_notify = NULL;
acpi_ut_remove_reference(notify_obj);
}
/* Remove the handler */
obj_desc->common_notify.system_notify = NULL;
acpi_ut_remove_reference(notify_obj);
}
if (handler_type & ACPI_DEVICE_NOTIFY) {
@ -523,14 +634,6 @@ acpi_remove_notify_handler(acpi_handle device,
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
/* Make sure all deferred tasks are completed */
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
acpi_os_wait_events_complete(NULL);
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto exit;
}
/* Remove the handler */
obj_desc->common_notify.device_notify = NULL;
@ -617,13 +720,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
handler->context = context;
handler->method_node = gpe_event_info->dispatch.method_node;
/* Disable the GPE before installing the handler */
status = acpi_ev_disable_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
/* Install the handler */
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
@ -707,13 +803,6 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
goto unlock_and_exit;
}
/* Disable the GPE before removing the handler */
status = acpi_ev_disable_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
/* Make sure all deferred tasks are completed */
(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);

156
drivers/acpi/acpica/evxfevnt.c
View file

@ -201,67 +201,25 @@ ACPI_EXPORT_SYMBOL(acpi_enable_event)
/*******************************************************************************
*
* FUNCTION: acpi_set_gpe_type
* FUNCTION: acpi_set_gpe
*
* PARAMETERS: gpe_device - Parent GPE Device
* gpe_number - GPE level within the GPE block
* Type - New GPE type
*
* RETURN: Status
*
* DESCRIPTION: Set the type of an individual GPE
*
******************************************************************************/
acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type)
{
acpi_status status = AE_OK;
struct acpi_gpe_event_info *gpe_event_info;
ACPI_FUNCTION_TRACE(acpi_set_gpe_type);
/* Ensure that we have a valid GPE number */
gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
if (!gpe_event_info) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) {
return_ACPI_STATUS(AE_OK);
}
/* Set the new type (will disable GPE if currently enabled) */
status = acpi_ev_set_gpe_type(gpe_event_info, type);
unlock_and_exit:
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_set_gpe_type)
/*******************************************************************************
*
* FUNCTION: acpi_enable_gpe
*
* PARAMETERS: gpe_device - Parent GPE Device
* gpe_number - GPE level within the GPE block
* Flags - Just enable, or also wake enable?
* action - Enable or disable
* Called from ISR or not
*
* RETURN: Status
*
* DESCRIPTION: Enable an ACPI event (general purpose)
* DESCRIPTION: Enable or disable an ACPI event (general purpose)
*
******************************************************************************/
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action)
{
acpi_status status = AE_OK;
acpi_cpu_flags flags;
struct acpi_gpe_event_info *gpe_event_info;
ACPI_FUNCTION_TRACE(acpi_enable_gpe);
ACPI_FUNCTION_TRACE(acpi_set_gpe);
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
@ -273,15 +231,90 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
goto unlock_and_exit;
}
/* Perform the enable */
/* Perform the action */
status = acpi_ev_enable_gpe(gpe_event_info, TRUE);
switch (action) {
case ACPI_GPE_ENABLE:
status = acpi_ev_enable_gpe(gpe_event_info);
break;
case ACPI_GPE_DISABLE:
status = acpi_ev_disable_gpe(gpe_event_info);
break;
default:
ACPI_ERROR((AE_INFO, "Invalid action\n"));
status = AE_BAD_PARAMETER;
break;
}
unlock_and_exit:
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_set_gpe)
/*******************************************************************************
*
* FUNCTION: acpi_enable_gpe
*
* PARAMETERS: gpe_device - Parent GPE Device
* gpe_number - GPE level within the GPE block
* type - Purpose the GPE will be used for
*
* RETURN: Status
*
* DESCRIPTION: Take a reference to a GPE and enable it if necessary
*
******************************************************************************/
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 type)
{
acpi_status status = AE_OK;
acpi_cpu_flags flags;
struct acpi_gpe_event_info *gpe_event_info;
ACPI_FUNCTION_TRACE(acpi_enable_gpe);
if (type & ~ACPI_GPE_TYPE_WAKE_RUN)
return_ACPI_STATUS(AE_BAD_PARAMETER);
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
/* Ensure that we have a valid GPE number */
gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
if (!gpe_event_info) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
if (type & ACPI_GPE_TYPE_RUNTIME) {
if (++gpe_event_info->runtime_count == 1) {
status = acpi_ev_enable_gpe(gpe_event_info);
if (ACPI_FAILURE(status))
gpe_event_info->runtime_count--;
}
}
if (type & ACPI_GPE_TYPE_WAKE) {
if (!(gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
/*
* Wake-up GPEs are only enabled right prior to putting the
* system into a sleep state.
*/
if (++gpe_event_info->wakeup_count == 1)
acpi_ev_update_gpe_enable_masks(gpe_event_info);
}
unlock_and_exit:
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
/*******************************************************************************
@ -290,15 +323,14 @@ ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
*
* PARAMETERS: gpe_device - Parent GPE Device
* gpe_number - GPE level within the GPE block
* Flags - Just disable, or also wake disable?
* Called from ISR or not
* type - Purpose the GPE won't be used for any more
*
* RETURN: Status
*
* DESCRIPTION: Disable an ACPI event (general purpose)
* DESCRIPTION: Release a reference to a GPE and disable it if necessary
*
******************************************************************************/
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 type)
{
acpi_status status = AE_OK;
acpi_cpu_flags flags;
@ -306,6 +338,9 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
ACPI_FUNCTION_TRACE(acpi_disable_gpe);
if (type & ~ACPI_GPE_TYPE_WAKE_RUN)
return_ACPI_STATUS(AE_BAD_PARAMETER);
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
/* Ensure that we have a valid GPE number */
@ -315,13 +350,24 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
goto unlock_and_exit;
}
status = acpi_ev_disable_gpe(gpe_event_info);
if ((type & ACPI_GPE_TYPE_RUNTIME) && gpe_event_info->runtime_count) {
if (--gpe_event_info->runtime_count == 0)
status = acpi_ev_disable_gpe(gpe_event_info);
}
if ((type & ACPI_GPE_TYPE_WAKE) && gpe_event_info->wakeup_count) {
/*
* Wake-up GPEs are not enabled after leaving system sleep
* states, so we don't need to disable them here.
*/
if (--gpe_event_info->wakeup_count == 0)
acpi_ev_update_gpe_enable_masks(gpe_event_info);
}
unlock_and_exit:
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_disable_gpe)
/*******************************************************************************

15
drivers/acpi/button.c
View file

@ -422,11 +422,10 @@ static int acpi_button_add(struct acpi_device *device)
if (device->wakeup.flags.valid) {
/* Button's GPE is run-wake GPE */
acpi_set_gpe_type(device->wakeup.gpe_device,
device->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(device->wakeup.gpe_device,
device->wakeup.gpe_number);
device->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
device->wakeup.run_wake_count++;
device->wakeup.state.enabled = 1;
}
@ -446,6 +445,14 @@ static int acpi_button_remove(struct acpi_device *device, int type)
{
struct acpi_button *button = acpi_driver_data(device);
if (device->wakeup.flags.valid) {
acpi_disable_gpe(device->wakeup.gpe_device,
device->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
device->wakeup.run_wake_count--;
device->wakeup.state.enabled = 0;
}
acpi_button_remove_fs(device);
input_unregister_device(button->input);
kfree(button);

28
drivers/acpi/ec.c
View file

@ -307,7 +307,11 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
pr_debug(PREFIX "transaction start\n");
/* disable GPE during transaction if storm is detected */
if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
acpi_disable_gpe(NULL, ec->gpe);
/*
* It has to be disabled at the hardware level regardless of the
* GPE reference counting, so that it doesn't trigger.
*/
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
}
status = acpi_ec_transaction_unlocked(ec, t);
@ -316,8 +320,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
ec_check_sci_sync(ec, acpi_ec_read_status(ec));
if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
msleep(1);
/* it is safe to enable GPE outside of transaction */
acpi_enable_gpe(NULL, ec->gpe);
/*
* It is safe to enable the GPE outside of the transaction. Use
* acpi_set_gpe() for that, since we used it to disable the GPE
* above.
*/
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
} else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) {
pr_info(PREFIX "GPE storm detected, "
"transactions will use polling mode\n");
@ -788,8 +796,8 @@ static int ec_install_handlers(struct acpi_ec *ec)
&acpi_ec_gpe_handler, ec);
if (ACPI_FAILURE(status))
return -ENODEV;
acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
acpi_enable_gpe(NULL, ec->gpe);
acpi_enable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
status = acpi_install_address_space_handler(ec->handle,
ACPI_ADR_SPACE_EC,
&acpi_ec_space_handler,
@ -806,6 +814,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
} else {
acpi_remove_gpe_handler(NULL, ec->gpe,
&acpi_ec_gpe_handler);
acpi_disable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
return -ENODEV;
}
}
@ -816,6 +825,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
static void ec_remove_handlers(struct acpi_ec *ec)
{
acpi_disable_gpe(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
pr_err(PREFIX "failed to remove space handler\n");
@ -1057,16 +1067,16 @@ error:
static int acpi_ec_suspend(struct acpi_device *device, pm_message_t state)
{
struct acpi_ec *ec = acpi_driver_data(device);
/* Stop using GPE */
acpi_disable_gpe(NULL, ec->gpe);
/* Stop using the GPE, but keep it reference counted. */
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
return 0;
}
static int acpi_ec_resume(struct acpi_device *device)
{
struct acpi_ec *ec = acpi_driver_data(device);
/* Enable use of GPE back */
acpi_enable_gpe(NULL, ec->gpe);
/* Enable the GPE again, but don't reference count it once more. */
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
return 0;
}

2
drivers/acpi/internal.h
View file

@ -36,8 +36,6 @@ static inline int acpi_debug_init(void) { return 0; }
int acpi_power_init(void);
int acpi_device_sleep_wake(struct acpi_device *dev,
int enable, int sleep_state, int dev_state);
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state);
int acpi_disable_wakeup_device_power(struct acpi_device *dev);
int acpi_power_get_inferred_state(struct acpi_device *device);
int acpi_power_transition(struct acpi_device *device, int state);
extern int acpi_power_nocheck;

14
drivers/acpi/pci_bind.c
View file

@ -26,7 +26,9 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/pci-acpi.h>
#include <linux/acpi.h>
#include <linux/pm_runtime.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@ -38,7 +40,13 @@ static int acpi_pci_unbind(struct acpi_device *device)
struct pci_dev *dev;
dev = acpi_get_pci_dev(device->handle);
if (!dev || !dev->subordinate)
if (!dev)
goto out;
device_set_run_wake(&dev->dev, false);
pci_acpi_remove_pm_notifier(device);
if (!dev->subordinate)
goto out;
acpi_pci_irq_del_prt(dev->subordinate);
@ -62,6 +70,10 @@ static int acpi_pci_bind(struct acpi_device *device)
if (!dev)
return 0;
pci_acpi_add_pm_notifier(device, dev);
if (device->wakeup.flags.run_wake)
device_set_run_wake(&dev->dev, true);
/*
* Install the 'bind' function to facilitate callbacks for
* children of the P2P bridge.

9
drivers/acpi/pci_root.c
View file

@ -30,6 +30,7 @@
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/pci.h>
#include <linux/pci-acpi.h>
#include <linux/acpi.h>
@ -528,6 +529,10 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (flags != base_flags)
acpi_pci_osc_support(root, flags);
pci_acpi_add_bus_pm_notifier(device, root->bus);
if (device->wakeup.flags.run_wake)
device_set_run_wake(root->bus->bridge, true);
return 0;
end:
@ -549,6 +554,9 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = acpi_driver_data(device);
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
kfree(root);
return 0;
}
@ -558,6 +566,7 @@ static int __init acpi_pci_root_init(void)
if (acpi_pci_disabled)
return 0;
pci_acpi_crs_quirks();
if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
return -ENODEV;

38
drivers/acpi/scan.c
View file

@ -741,19 +741,40 @@ acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
return AE_OK;
}
static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
{
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
int psw_error;
struct acpi_device_id button_device_ids[] = {
{"PNP0C0D", 0},
{"PNP0C0C", 0},
{"PNP0C0E", 0},
{"", 0},
};
acpi_status status;
acpi_event_status event_status;
device->wakeup.run_wake_count = 0;
device->wakeup.flags.notifier_present = 0;
/* Power button, Lid switch always enable wakeup */
if (!acpi_match_device_ids(device, button_device_ids)) {
device->wakeup.flags.run_wake = 1;
device->wakeup.flags.always_enabled = 1;
return;
}
status = acpi_get_gpe_status(NULL, device->wakeup.gpe_number,
ACPI_NOT_ISR, &event_status);
if (status == AE_OK)
device->wakeup.flags.run_wake =
!!(event_status & ACPI_EVENT_FLAG_HANDLE);
}
static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
{
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
int psw_error;
/* _PRW */
status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
@ -773,6 +794,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
device->wakeup.flags.valid = 1;
device->wakeup.prepare_count = 0;
acpi_bus_set_run_wake_flags(device);
/* Call _PSW/_DSW object to disable its ability to wake the sleeping
* system for the ACPI device with the _PRW object.
* The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW.
@ -784,10 +806,6 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"error in _DSW or _PSW evaluation\n"));
/* Power button, Lid switch always enable wakeup */
if (!acpi_match_device_ids(device, button_device_ids))
device->wakeup.flags.run_wake = 1;
end:
if (ACPI_FAILURE(status))
device->flags.wake_capable = 0;

15
drivers/acpi/sleep.c
View file

@ -745,9 +745,18 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
return -ENODEV;
}
error = enable ?
acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
acpi_disable_wakeup_device_power(adev);
if (enable) {
error = acpi_enable_wakeup_device_power(adev,
acpi_target_sleep_state);
if (!error)
acpi_enable_gpe(adev->wakeup.gpe_device,
adev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE);
} else {
acpi_disable_gpe(adev->wakeup.gpe_device, adev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE);
error = acpi_disable_wakeup_device_power(adev);
}
if (!error)
dev_info(dev, "wake-up capability %s by ACPI\n",
enable ? "enabled" : "disabled");

4
drivers/acpi/system.c
View file

@ -387,10 +387,10 @@ static ssize_t counter_set(struct kobject *kobj,
if (index < num_gpes) {
if (!strcmp(buf, "disable\n") &&
(status & ACPI_EVENT_FLAG_ENABLED))
result = acpi_disable_gpe(handle, index);
result = acpi_set_gpe(handle, index, ACPI_GPE_DISABLE);
else if (!strcmp(buf, "enable\n") &&
!(status & ACPI_EVENT_FLAG_ENABLED))
result = acpi_enable_gpe(handle, index);
result = acpi_set_gpe(handle, index, ACPI_GPE_ENABLE);
else if (!strcmp(buf, "clear\n") &&
(status & ACPI_EVENT_FLAG_SET))
result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR);

84
drivers/acpi/wakeup.c
View file

@ -21,12 +21,12 @@
ACPI_MODULE_NAME("wakeup_devices")
/**
* acpi_enable_wakeup_device_prep - prepare wakeup devices
* @sleep_state: ACPI state
* Enable all wakup devices power if the devices' wakeup level
* is higher than requested sleep level
* acpi_enable_wakeup_device_prep - Prepare wake-up devices.
* @sleep_state: ACPI system sleep state.
*
* Enable all wake-up devices' power, unless the requested system sleep state is
* too deep.
*/
void acpi_enable_wakeup_device_prep(u8 sleep_state)
{
struct list_head *node, *next;
@ -36,9 +36,8 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state)
struct acpi_device,
wakeup_list);
if (!dev->wakeup.flags.valid ||
!dev->wakeup.state.enabled ||
(sleep_state > (u32) dev->wakeup.sleep_state))
if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled
|| (sleep_state > (u32) dev->wakeup.sleep_state))
continue;
acpi_enable_wakeup_device_power(dev, sleep_state);
@ -46,9 +45,12 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state)
}
/**
* acpi_enable_wakeup_device - enable wakeup devices
* @sleep_state: ACPI state
* Enable all wakup devices's GPE
* acpi_enable_wakeup_device - Enable wake-up device GPEs.
* @sleep_state: ACPI system sleep state.
*
* Enable all wake-up devices' GPEs, with the assumption that
* acpi_disable_all_gpes() was executed before, so we don't need to disable any
* GPEs here.
*/
void acpi_enable_wakeup_device(u8 sleep_state)
{
@ -65,29 +67,22 @@ void acpi_enable_wakeup_device(u8 sleep_state)
if (!dev->wakeup.flags.valid)
continue;
/* If users want to disable run-wake GPE,
* we only disable it for wake and leave it for runtime
*/
if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count)
|| sleep_state > (u32) dev->wakeup.sleep_state) {
if (dev->wakeup.flags.run_wake) {
/* set_gpe_type will disable GPE, leave it like that */
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_RUNTIME);
}
|| sleep_state > (u32) dev->wakeup.sleep_state)
continue;
}
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
/* The wake-up power should have been enabled already. */
acpi_set_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
ACPI_GPE_ENABLE);
}
}
/**
* acpi_disable_wakeup_device - disable devices' wakeup capability
* @sleep_state: ACPI state
* Disable all wakup devices's GPE and wakeup capability
* acpi_disable_wakeup_device - Disable devices' wakeup capability.
* @sleep_state: ACPI system sleep state.
*
* This function only affects devices with wakeup.state.enabled set, which means
* that it reverses the changes made by acpi_enable_wakeup_device_prep().
*/
void acpi_disable_wakeup_device(u8 sleep_state)
{
@ -97,30 +92,11 @@ void acpi_disable_wakeup_device(u8 sleep_state)
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
if (!dev->wakeup.flags.valid)
if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled
|| (sleep_state > (u32) dev->wakeup.sleep_state))
continue;
if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count)
|| sleep_state > (u32) dev->wakeup.sleep_state) {
if (dev->wakeup.flags.run_wake) {
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
/* Re-enable it, since set_gpe_type will disable it */
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
}
continue;
}
acpi_disable_wakeup_device_power(dev);
/* Never disable run-wake GPE */
if (!dev->wakeup.flags.run_wake) {
acpi_disable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
}
}
@ -134,13 +110,11 @@ int __init acpi_wakeup_device_init(void)
struct acpi_device,
wakeup_list);
/* In case user doesn't load button driver */
if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
if (!dev->wakeup.flags.always_enabled ||
dev->wakeup.state.enabled)
continue;
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE);
dev->wakeup.state.enabled = 1;
}
mutex_unlock(&acpi_device_lock);