Merge tag 'exynos-drm-fixes-for-v4.17-rc5' of git://git.kernel.org/pub/scm/linux...

[uclinux-h8/linux.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index abf952c..4779569 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -256,6 +256,9 @@ enum probe_type {
  *             automatically.
  * @pm:                Power management operations of the device which matched
  *             this driver.
+ * @coredump:  Called when sysfs entry is written to. The device driver
+ *             is expected to call the dev_coredump API resulting in a
+ *             uevent.
  * @p:         Driver core's private data, no one other than the driver
  *             core can touch this.
  *
@@ -287,7 +290,7 @@ struct device_driver {
        const struct attribute_group **groups;
 
        const struct dev_pm_ops *pm;
-       int (*coredump) (struct device *dev);
+       void (*coredump) (struct device *dev);
 
        struct driver_private *p;
 };
@@ -730,6 +733,28 @@ 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.