@@ -554,6 +554,32 @@ static void acpi_device_remove_notify_handler(struct acpi_device *device,
acpi_os_wait_events_complete();
}
+int acpi_dev_install_notify_handler(struct acpi_device *adev,
+ u32 handler_type,
+ acpi_notify_handler handler)
+{
+ acpi_status status;
+
+ status = acpi_install_notify_handler(adev->handle,
+ handler_type,
+ handler,
+ adev);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+
+ return 0;
+}
+EXPORT_SYMBOL(acpi_dev_install_notify_handler);
+
+void acpi_dev_remove_notify_handler(struct acpi_device *adev,
+ u32 handler_type,
+ acpi_notify_handler handler)
+{
+ acpi_remove_notify_handler(adev->handle, handler_type, handler);
+ acpi_os_wait_events_complete();
+}
+EXPORT_SYMBOL(acpi_dev_remove_notify_handler);
+
/* Handle events targeting \_SB device (at present only graceful shutdown) */
#define ACPI_SB_NOTIFY_SHUTDOWN_REQUEST 0x81
@@ -515,6 +515,12 @@ void acpi_bus_private_data_handler(acpi_handle, void *);
int acpi_bus_get_private_data(acpi_handle, void **);
int acpi_bus_attach_private_data(acpi_handle, void *);
void acpi_bus_detach_private_data(acpi_handle);
+int acpi_dev_install_notify_handler(struct acpi_device *adev,
+ u32 handler_type,
+ acpi_notify_handler handler);
+void acpi_dev_remove_notify_handler(struct acpi_device *adev,
+ u32 handler_type,
+ acpi_notify_handler handler);
extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
extern int register_acpi_notifier(struct notifier_block *);
extern int unregister_acpi_notifier(struct notifier_block *);
Introduce new acpi_dev_install_notify_handler() and acpi_dev_remove_notify_handler(). Those functions are replacing old installers, and after all drivers switch to the new model, old installers will be removed. Make acpi_dev_install_notify_handler() and acpi_dev_remove_notify_handler() non-static, and export symbols. This will allow the drivers to call them directly, instead of relying on .notify callback. Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com> --- drivers/acpi/bus.c | 26 ++++++++++++++++++++++++++ include/acpi/acpi_bus.h | 6 ++++++ 2 files changed, 32 insertions(+)