dm: core: Support finding a device by phandle

[karo-tx-uboot.git] / include / dm / uclass.h

diff --git a/include/dm/uclass.h b/include/dm/uclass.h
index 4cfc0df84c21bac942c633279ea358e968527f53..3fe17397e1202c76315c9f0f13d6cd63259ac032 100644 (file)
--- a/include/dm/uclass.h
+++ b/include/dm/uclass.h
@@ -176,6 +176,23 @@ int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp);
 int uclass_get_device_by_of_offset(enum uclass_id id, int node,
                                   struct udevice **devp);
 
+/**
+ * uclass_get_device_by_phandle() - Get a uclass device by phandle
+ *
+ * This searches the devices in the uclass for one with the given phandle.
+ *
+ * The device is probed to activate it ready for use.
+ *
+ * @id: uclass ID to look up
+ * @parent: Parent device containing the phandle pointer
+ * @name: Name of property in the parent device node
+ * @devp: Returns pointer to device (there is only one for each node)
+ * @return 0 if OK, -ENOENT if there is no @name present in the node, other
+ *     -ve on error
+ */
+int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
+                                const char *name, struct udevice **devp);
+
 /**
  * uclass_first_device() - Get the first device in a uclass
  *