libfdt: change fdt.h to a wrapper of scripts/dtc/libfdt/*

[oweals/u-boot.git] / lib / libfdt / libfdt.h

diff --git a/lib/libfdt/libfdt.h b/lib/libfdt/libfdt.h
index 2f7ebf8e068a291363dbf246d317c8a12631b875..6af94cb3f755e1915d1bee389d4c0357dbd6cecf 100644 (file)
--- a/lib/libfdt/libfdt.h
+++ b/lib/libfdt/libfdt.h
@@ -93,12 +93,7 @@
        /* FDT_ERR_NOPHANDLES: The device tree doesn't have any
         * phandle available anymore without causing an overflow */
 
-#define FDT_ERR_TOODEEP        18
-       /* FDT_ERR_TOODEEP: The depth of a node has exceeded the internal
-        * libfdt limit. This can happen if you have more than
-        * FDT_MAX_DEPTH nested nodes. */
-
-#define FDT_ERR_MAX            18
+#define FDT_ERR_MAX            17
 
 /**********************************************************************/
 /* Low-level functions (you probably don't need these)                */
@@ -1409,6 +1404,37 @@ int fdt_set_name(void *fdt, int nodeoffset, const char *name);
 int fdt_setprop(void *fdt, int nodeoffset, const char *name,
                const void *val, int len);
 
+/**
+ * fdt_setprop _placeholder - allocate space for a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @len: length of the property value
+ * @prop_data: return pointer to property data
+ *
+ * fdt_setprop_placeholer() allocates the named property in the given node.
+ * If the property exists it is resized. In either case a pointer to the
+ * property data is returned.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ *     0, on success
+ *     -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ *             contain the new property value
+ *     -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *     -FDT_ERR_BADLAYOUT,
+ *     -FDT_ERR_BADMAGIC,
+ *     -FDT_ERR_BADVERSION,
+ *     -FDT_ERR_BADSTATE,
+ *     -FDT_ERR_BADSTRUCTURE,
+ *     -FDT_ERR_BADLAYOUT,
+ *     -FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
+                           int len, void **prop_data);
+
 /**
  * fdt_setprop_u32 - set a property to a 32-bit integer
  * @fdt: pointer to the device tree blob