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-rw-r--r--include/linux/device.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index b093405ed525..204ff64279fd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -730,6 +730,28 @@ struct device_dma_parameters {
};
/**
+ * struct device_connection - Device Connection Descriptor
+ * @endpoint: The names of the two devices connected together
+ * @id: Unique identifier for the connection
+ * @list: List head, private, for internal use only
+ */
+struct device_connection {
+ const char *endpoint[2];
+ const char *id;
+ struct list_head list;
+};
+
+void *device_connection_find_match(struct device *dev, const char *con_id,
+ void *data,
+ void *(*match)(struct device_connection *con,
+ int ep, void *data));
+
+struct device *device_connection_find(struct device *dev, const char *con_id);
+
+void device_connection_add(struct device_connection *con);
+void device_connection_remove(struct device_connection *con);
+
+/**
* enum device_link_state - Device link states.
* @DL_STATE_NONE: The presence of the drivers is not being tracked.
* @DL_STATE_DORMANT: None of the supplier/consumer drivers is present.
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