dock: introduce .uevent for devices in dock, eg libata

dock's uevent reported itself, not ata. It might be difficult to find an
ata device just according to a dock. This patch introduces docking ops
for each device in a dock. when docking, dock driver can send device
specific uevent. This should help dock station too (not just bay)

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index e5f38e5ce86f..4f5042a0ef80 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -115,12 +115,17 @@ int acpi_processor_set_thermal_limit(acpi_handle handle, int type);
 /*--------------------------------------------------------------------------
                                   Dock Station
   -------------------------------------------------------------------------- */
+struct acpi_dock_ops {
+        acpi_notify_handler handler;
+        acpi_notify_handler uevent;
+};
+
 #if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE)
 extern int is_dock_device(acpi_handle handle);
 extern int register_dock_notifier(struct notifier_block *nb);
 extern void unregister_dock_notifier(struct notifier_block *nb);
 extern int register_hotplug_dock_device(acpi_handle handle,
-                                        acpi_notify_handler handler,
+                                        struct acpi_dock_ops *ops,
                                         void *context);
 extern void unregister_hotplug_dock_device(acpi_handle handle);
 #else
@@ -136,7 +141,7 @@ static inline void unregister_dock_notifier(struct notifier_block *nb)
 {
 }
 static inline int register_hotplug_dock_device(acpi_handle handle,
-                                               acpi_notify_handler handler,
+                                               struct acpi_dock_ops *ops,
                                                void *context)
 {
         return -ENODEV;