#include <linux/pm_qos.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
+#include <linux/suspend.h>
#include "internal.h"
#ifdef CONFIG_PM
static DEFINE_MUTEX(acpi_pm_notifier_lock);
+void acpi_pm_wakeup_event(struct device *dev)
+{
+ pm_wakeup_dev_event(dev, 0, acpi_s2idle_wakeup());
+}
+EXPORT_SYMBOL_GPL(acpi_pm_wakeup_event);
+
static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
{
struct acpi_device *adev;
mutex_lock(&acpi_pm_notifier_lock);
if (adev->wakeup.flags.notifier_present) {
- __pm_wakeup_event(adev->wakeup.ws, 0);
- if (adev->wakeup.context.work.func)
- queue_pm_work(&adev->wakeup.context.work);
+ pm_wakeup_ws_event(adev->wakeup.ws, 0, acpi_s2idle_wakeup());
+ if (adev->wakeup.context.func)
+ adev->wakeup.context.func(&adev->wakeup.context);
}
mutex_unlock(&acpi_pm_notifier_lock);
* acpi_add_pm_notifier - Register PM notify handler for given ACPI device.
* @adev: ACPI device to add the notify handler for.
* @dev: Device to generate a wakeup event for while handling the notification.
- * @work_func: Work function to execute when handling the notification.
+ * @func: Work function to execute when handling the notification.
*
* NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
* PM wakeup events. For example, wakeup events may be generated for bridges
* bridge itself doesn't have a wakeup GPE associated with it.
*/
acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
- void (*work_func)(struct work_struct *work))
+ void (*func)(struct acpi_device_wakeup_context *context))
{
acpi_status status = AE_ALREADY_EXISTS;
- if (!dev && !work_func)
+ if (!dev && !func)
return AE_BAD_PARAMETER;
mutex_lock(&acpi_pm_notifier_lock);
adev->wakeup.ws = wakeup_source_register(dev_name(&adev->dev));
adev->wakeup.context.dev = dev;
- if (work_func)
- INIT_WORK(&adev->wakeup.context.work, work_func);
+ adev->wakeup.context.func = func;
status = acpi_install_notify_handler(adev->handle, ACPI_SYSTEM_NOTIFY,
acpi_pm_notify_handler, NULL);
if (ACPI_FAILURE(status))
goto out;
- if (adev->wakeup.context.work.func) {
- cancel_work_sync(&adev->wakeup.context.work);
- adev->wakeup.context.work.func = NULL;
- }
+ adev->wakeup.context.func = NULL;
adev->wakeup.context.dev = NULL;
wakeup_source_unregister(adev->wakeup.ws);
}
EXPORT_SYMBOL(acpi_bus_can_wakeup);
+bool acpi_pm_device_can_wakeup(struct device *dev)
+{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
+
+ return adev ? acpi_device_can_wakeup(adev) : false;
+}
+
/**
* acpi_dev_pm_get_state - Get preferred power state of ACPI device.
* @dev: Device whose preferred target power state to return.
/**
* acpi_pm_notify_work_func - ACPI devices wakeup notification work function.
- * @work: Work item to handle.
+ * @context: Device wakeup context.
*/
-static void acpi_pm_notify_work_func(struct work_struct *work)
+static void acpi_pm_notify_work_func(struct acpi_device_wakeup_context *context)
{
- struct device *dev;
+ struct device *dev = context->dev;
- dev = container_of(work, struct acpi_device_wakeup_context, work)->dev;
if (dev) {
pm_wakeup_event(dev, 0);
- pm_runtime_resume(dev);
+ pm_request_resume(dev);
}
}
acpi_status res;
int error;
+ if (adev->wakeup.flags.enabled)
+ return 0;
+
error = acpi_enable_wakeup_device_power(adev, target_state);
if (error)
return error;
- if (adev->wakeup.flags.enabled)
- return 0;
-
res = acpi_enable_gpe(wakeup->gpe_device, wakeup->gpe_number);
- if (ACPI_SUCCESS(res)) {
- adev->wakeup.flags.enabled = 1;
- } else {
+ if (ACPI_FAILURE(res)) {
acpi_disable_wakeup_device_power(adev);
return -EIO;
}
- } else {
- if (adev->wakeup.flags.enabled) {
- acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
- adev->wakeup.flags.enabled = 0;
- }
+ adev->wakeup.flags.enabled = 1;
+ } else if (adev->wakeup.flags.enabled) {
+ acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
acpi_disable_wakeup_device_power(adev);
+ adev->wakeup.flags.enabled = 0;
}
return 0;
}
/**
- * acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.
- * @dev: Device to enable/disable the platform to wake up.
+ * acpi_pm_set_device_wakeup - Enable/disable remote wakeup for given device.
+ * @dev: Device to enable/disable to generate wakeup events.
* @enable: Whether to enable or disable the wakeup functionality.
*/
-int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
-{
- struct acpi_device *adev;
-
- if (!device_run_wake(phys_dev))
- return -EINVAL;
-
- adev = ACPI_COMPANION(phys_dev);
- if (!adev) {
- dev_dbg(phys_dev, "ACPI companion missing in %s!\n", __func__);
- return -ENODEV;
- }
-
- return acpi_device_wakeup(adev, ACPI_STATE_S0, enable);
-}
-EXPORT_SYMBOL(acpi_pm_device_run_wake);
-
-#ifdef CONFIG_PM_SLEEP
-/**
- * acpi_pm_device_sleep_wake - Enable or disable device to wake up the system.
- * @dev: Device to enable/desible to wake up the system from sleep states.
- * @enable: Whether to enable or disable @dev to wake up the system.
- */
-int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
{
struct acpi_device *adev;
int error;
- if (!device_can_wakeup(dev))
- return -EINVAL;
-
adev = ACPI_COMPANION(dev);
if (!adev) {
dev_dbg(dev, "ACPI companion missing in %s!\n", __func__);
return -ENODEV;
}
+ if (!acpi_device_can_wakeup(adev))
+ return -EINVAL;
+
error = acpi_device_wakeup(adev, acpi_target_system_state(), enable);
if (!error)
- dev_info(dev, "System wakeup %s by ACPI\n",
- enable ? "enabled" : "disabled");
+ dev_dbg(dev, "Wakeup %s by ACPI\n", enable ? "enabled" : "disabled");
return error;
}
-#endif /* CONFIG_PM_SLEEP */
+EXPORT_SYMBOL(acpi_pm_set_device_wakeup);
/**
* acpi_dev_pm_low_power - Put ACPI device into a low-power state.
projects / karo-tx-linux.git / blobdiff