summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/acpi/acpica/evxfevnt.c67
-rw-r--r--drivers/acpi/sleep.c15
-rw-r--r--drivers/acpi/wakeup.c18
-rw-r--r--include/acpi/acpixf.h2
-rw-r--r--include/acpi/actypes.h2
5 files changed, 84 insertions, 20 deletions
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index d97b8dce1668..d6a6d4a76592 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -308,6 +308,73 @@ ACPI_EXPORT_SYMBOL(acpi_set_gpe)
/*******************************************************************************
*
+ * FUNCTION: acpi_gpe_wakeup
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
+ * gpe_number - GPE level within the GPE block
+ * Action - Enable or Disable
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Set or clear the GPE's wakeup enable mask bit.
+ *
+ ******************************************************************************/
+acpi_status acpi_gpe_wakeup(acpi_handle gpe_device, u32 gpe_number, u8 action)
+{
+ acpi_status status = AE_OK;
+ struct acpi_gpe_event_info *gpe_event_info;
+ struct acpi_gpe_register_info *gpe_register_info;
+ acpi_cpu_flags flags;
+ u32 register_bit;
+
+ ACPI_FUNCTION_TRACE(acpi_gpe_wakeup);
+
+ 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;
+ }
+
+ gpe_register_info = gpe_event_info->register_info;
+ if (!gpe_register_info) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ register_bit =
+ acpi_hw_get_gpe_register_bit(gpe_event_info, gpe_register_info);
+
+ /* Perform the action */
+
+ switch (action) {
+ case ACPI_GPE_ENABLE:
+ ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
+ break;
+
+ case ACPI_GPE_DISABLE:
+ ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
+ register_bit);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "%u, Invalid action", action));
+ 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_gpe_wakeup)
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_enable_gpe
*
* PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 5b7c52e4a00f..aaa1af55e280 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -664,18 +664,9 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
return -ENODEV;
}
- 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);
- }
+ error = enable ?
+ acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
+ acpi_disable_wakeup_device_power(adev);
if (!error)
dev_info(dev, "wake-up capability %s by ACPI\n",
enable ? "enabled" : "disabled");
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 388747a7ef4f..c80537bc3234 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -64,13 +64,14 @@ void acpi_enable_wakeup_device(u8 sleep_state)
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
- if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled
+ if (!dev->wakeup.flags.valid
+ || !(dev->wakeup.state.enabled || dev->wakeup.prepare_count)
|| sleep_state > (u32) dev->wakeup.sleep_state)
continue;
/* The wake-up power should have been enabled already. */
- acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE);
+ acpi_gpe_wakeup(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
+ ACPI_GPE_ENABLE);
}
}
@@ -89,13 +90,16 @@ 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 || !dev->wakeup.state.enabled
+ if (!dev->wakeup.flags.valid
+ || !(dev->wakeup.state.enabled || dev->wakeup.prepare_count)
|| (sleep_state > (u32) dev->wakeup.sleep_state))
continue;
- acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE);
- acpi_disable_wakeup_device_power(dev);
+ acpi_gpe_wakeup(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
+ ACPI_GPE_DISABLE);
+
+ if (dev->wakeup.state.enabled)
+ acpi_disable_wakeup_device_power(dev);
}
}
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 8aaa596e1208..17396e83e1a4 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -292,6 +292,8 @@ acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type);
acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number);
+acpi_status acpi_gpe_wakeup(acpi_handle gpe_device, u32 gpe_number, u8 action);
+
acpi_status
acpi_get_gpe_status(acpi_handle gpe_device,
u32 gpe_number, acpi_event_status *event_status);
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index d55f4a7b824d..6a65a94897bf 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -663,7 +663,7 @@ typedef u32 acpi_event_status;
#define ACPI_GPE_MAX 0xFF
#define ACPI_NUM_GPE 256
-/* Actions for acpi_set_gpe and acpi_hw_low_set_gpe */
+/* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
#define ACPI_GPE_ENABLE 0
#define ACPI_GPE_DISABLE 1
OpenPOWER on IntegriCloud