ACPI: add acpi_bus_removal_type in acpi_device

Add removal_type in structure acpi_device for hot removal.

ACPI_BUS_REMOVAL_EJECT is used for ACPI device hot removal.
Only one parameter is allowed in .remove method due to driver model.
So removal_type is added to indicate different removal type.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 5 insertions, 2 deletions

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 2a82645c9dfe..06b86faf037f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -229,9 +229,9 @@ static int acpi_device_remove(struct device * dev)
 
         if (acpi_drv) {
                 if (acpi_drv->ops.stop)
-                        acpi_drv->ops.stop(acpi_dev, ACPI_BUS_REMOVAL_NORMAL);
+                        acpi_drv->ops.stop(acpi_dev, acpi_dev->removal_type);
                 if (acpi_drv->ops.remove)
-                        acpi_drv->ops.remove(acpi_dev, ACPI_BUS_REMOVAL_NORMAL);
+                        acpi_drv->ops.remove(acpi_dev, acpi_dev->removal_type);
         }
         acpi_dev->driver = NULL;
         acpi_driver_data(dev) = NULL;
@@ -294,6 +294,7 @@ static void acpi_device_register(struct acpi_device *device,
         device_add(&device->dev);
 
         acpi_device_setup_files(device);
+        device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
 }
 
 static void acpi_device_unregister(struct acpi_device *device, int type)
@@ -859,6 +860,7 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
         if (!dev)
                 return -EINVAL;
 
+        dev->removal_type = ACPI_BUS_REMOVAL_EJECT;
         device_release_driver(&dev->dev);
 
         if (!rmdevice)
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 8976dbea63ca..58dc8f651861 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -301,6 +301,7 @@ struct acpi_device {
         void *driver_data;
         struct device dev;
         struct acpi_bus_ops bus_ops;    /* workaround for different code path for hotplug */
+        enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
 };
 
 #define acpi_driver_data(d)     ((d)->driver_data)