diff --git a/drivers/acpi/hotplug/device.c b/drivers/acpi/hotplug/device.c
index 1795939..19a9683 100644
--- a/drivers/acpi/hotplug/device.c
+++ b/drivers/acpi/hotplug/device.c
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2011 Huawei Tech. Co., Ltd.
  * Copyright (C) 2011 Jiang Liu <jiang.liu@huawei.com>
+ * Copyright (C) 2011 Hanjun Guo <guohanjun@huawei.com>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -27,6 +28,77 @@
 #include <acpi/acpi_hotplug.h>
 #include "../internal.h"
 
+int acpihp_dev_get_info(struct acpi_device *device,
+			struct acpihp_dev_info *info)
+{
+	int ret = -ENOSYS;
+
+	acpihp_dev_get_type(device->handle, &info->type);
+
+	mutex_lock(&device->dev.mutex);
+	if (device->driver && device->driver->ops.hp_ops &&
+	    device->driver->ops.hp_ops->get_info)
+		ret = device->driver->ops.hp_ops->get_info(device, info);
+	else
+#if 0
+		/* Turn on this once all system devices have been converted
+		 * to the new hotplug framework
+		 */
+		info->status |= ACPIHP_DEV_STATUS_IRREMOVABLE;
+#else
+		ret = 0;
+#endif
+
+	if (device->driver)
+		info->status |= ACPIHP_DEV_STATUS_ATTACHED;
+	mutex_unlock(&device->dev.mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(acpihp_dev_get_info);
+
+#define	ACPIHP_DEFINE_FUNC(method, def, err) \
+int acpihp_dev_##method(struct acpi_device *device) \
+{ \
+	int ret; \
+	BUG_ON(device == NULL); \
+	if (!device->driver || !device->driver->ops.hp_ops) \
+		ret = (err); \
+	else if (!device->driver->ops.hp_ops->method) \
+		ret = (def); \
+	else \
+		ret = device->driver->ops.hp_ops->method(device);\
+	return ret; \
+} \
+EXPORT_SYMBOL_GPL(acpihp_dev_##method)
+
+#define	ACPIHP_DEFINE_FUNC1(method, def, err, type) \
+int acpihp_dev_##method(struct acpi_device *device, type val) \
+{ \
+	int ret; \
+	BUG_ON(device == NULL); \
+	if (!device->driver || !device->driver->ops.hp_ops) \
+		ret = (err); \
+	else if (!device->driver->ops.hp_ops->method) \
+		ret = (def); \
+	else \
+		ret = device->driver->ops.hp_ops->method(device, val); \
+	return ret; \
+} \
+EXPORT_SYMBOL_GPL(acpihp_dev_##method)
+
+ACPIHP_DEFINE_FUNC1(pre_configure, 0, 0, struct acpihp_cancel_context *);
+ACPIHP_DEFINE_FUNC1(configure, 0, -ENOSYS, struct acpihp_cancel_context *);
+ACPIHP_DEFINE_FUNC1(post_configure, 0, 0, enum acpihp_dev_post_cmd);
+
+ACPIHP_DEFINE_FUNC1(pre_release, 0, 0, struct acpihp_cancel_context *);
+ACPIHP_DEFINE_FUNC1(release, 0, 0, struct acpihp_cancel_context *);
+ACPIHP_DEFINE_FUNC1(post_release, 0, 0, enum acpihp_dev_post_cmd);
+
+ACPIHP_DEFINE_FUNC(pre_unconfigure, 0, 0);
+ACPIHP_DEFINE_FUNC(unconfigure, 0, -ENOSYS);
+ACPIHP_DEFINE_FUNC(post_unconfigure, 0, 0);
+
 /*
  * When creating ACPI devices for hot-added system devices connecting to slot,
  * we shouldn't cross the slot boundary. Otherwise it will cause inconsistence
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 81b4c3f..09bfa80 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -140,6 +140,9 @@ struct acpi_device_ops {
 	acpi_op_bind bind;
 	acpi_op_unbind unbind;
 	acpi_op_notify notify;
+#ifdef	CONFIG_ACPI_HOTPLUG
+	struct acpihp_dev_ops *hp_ops;
+#endif	/* CONFIG_ACPI_HOTPLUG */
 };
 
 #define ACPI_DRIVER_ALL_NOTIFY_EVENTS	0x1	/* system AND device events */
diff --git a/include/acpi/acpi_hotplug.h b/include/acpi/acpi_hotplug.h
index cd8dd99..2589ccb 100644
--- a/include/acpi/acpi_hotplug.h
+++ b/include/acpi/acpi_hotplug.h
@@ -66,6 +66,51 @@ struct acpihp_dev_node {
 	struct klist_node	node;
 };
 
+/* Status of system devices. */
+#define	ACPIHP_DEV_STATUS_ATTACHED	0x1 /* Device driver attached */
+#define	ACPIHP_DEV_STATUS_STARTED	0x2 /* Device started */
+#define	ACPIHP_DEV_STATUS_IRREMOVABLE	0x10000 /* Device can't be removed */
+#define	ACPIHP_DEV_STATUS_FAULT		0x20000 /* Device in fault status */
+
+struct acpihp_dev_info {
+	enum acpihp_dev_type		type;
+	uint32_t			status;
+};
+
+/* Rollback or commit changes in post_{confiure|release} */
+enum acpihp_dev_post_cmd {
+	ACPIHP_DEV_POST_CMD_ROLLBACK,
+	ACPIHP_DEV_POST_CMD_COMMIT
+};
+
+/*
+ * ACPI system device drivers may check cancellations of hotplug operations
+ * by invoking the callback.
+ */
+struct acpihp_cancel_context {
+	int (*check_cancel)(struct acpihp_cancel_context *ctx);
+};
+
+/*
+ * Callback hooks provided by ACPI device drivers to support system device
+ * hotplug. To support hotplug, an ACPI system device driver must implement
+ * configure(), unconfigure() and get_info() at least.
+ */
+struct acpihp_dev_ops {
+	int (*get_info)(struct acpi_device *, struct acpihp_dev_info *info);
+	int (*pre_configure)(struct acpi_device *,
+			     struct acpihp_cancel_context *);
+	int (*configure)(struct acpi_device *, struct acpihp_cancel_context *);
+	int (*post_configure)(struct acpi_device *, enum acpihp_dev_post_cmd);
+	int (*pre_release)(struct acpi_device *,
+			   struct acpihp_cancel_context *);
+	int (*release)(struct acpi_device *, struct acpihp_cancel_context *);
+	int (*post_release)(struct acpi_device *, enum acpihp_dev_post_cmd);
+	int (*pre_unconfigure)(struct acpi_device *);
+	int (*unconfigure)(struct acpi_device *);
+	int (*post_unconfigure)(struct acpi_device *);
+};
+
 /*
  * ACPI hotplug slot is an abstraction of receptacles where a group of
  * system devices could be attached, just like PCI slot in PCI hotplug.
@@ -165,6 +210,25 @@ extern int acpihp_register_class(void);
 /* Unregister the ACPI hotplug slot class driver */
 extern void acpihp_unregister_class(void);
 
+/* Interfaces to invoke the ACPI device driver's hotplug hooks. */
+extern int acpihp_dev_get_info(struct acpi_device *device,
+			       struct acpihp_dev_info *info);
+extern int acpihp_dev_pre_configure(struct acpi_device *device,
+				    struct acpihp_cancel_context *ctx);
+extern int acpihp_dev_configure(struct acpi_device *device,
+				struct acpihp_cancel_context *ctx);
+extern int acpihp_dev_post_configure(struct acpi_device *device,
+				     enum acpihp_dev_post_cmd cmd);
+extern int acpihp_dev_pre_release(struct acpi_device *device,
+				  struct acpihp_cancel_context *ctx);
+extern int acpihp_dev_release(struct acpi_device *device,
+			      struct acpihp_cancel_context *ctx);
+extern int acpihp_dev_post_release(struct acpi_device *device,
+				   enum acpihp_dev_post_cmd cmd);
+extern int acpihp_dev_pre_unconfigure(struct acpi_device *device);
+extern int acpihp_dev_unconfigure(struct acpi_device *device);
+extern int acpihp_dev_post_unconfigure(struct acpi_device *device);
+
 /* Utility routines */
 extern int acpihp_dev_get_type(acpi_handle handle, enum acpihp_dev_type *type);
 extern bool acpihp_dev_match_ids(struct acpi_device_info *infop, char **ids);
