fdt: Add fdt_del_node_and_alias helper

Add a helper function that given an alias will delete both the node the alias points to and the alias itself Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com>

fdt: Add fdt_del_node_and_alias helper
Add a helper function that given an alias will delete both the node the alias points to and the alias itself Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Kumar Gala
1 parent 69bcf5bc80
Showing 2 changed files with 14 additions and 0 deletions Side-by-side Diff
common/fdt_support.c
include/fdt_support.h
@@ -976,4 +976,17 @@
 	}
 }
 #endif
+
+void fdt_del_node_and_alias(void *blob, const char *alias)
+{
+	int off = fdt_path_offset(blob, alias);
+
+	if (off < 0)
+		return;
+
+	fdt_del_node(blob, off);
+
+	off = fdt_path_offset(blob, "/aliases");
+	fdt_delprop(blob, off, alias);
+}
@@ -82,6 +82,7 @@
 int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size);
  
 void fdt_fixup_mtdparts(void *fdt, void *node_info, int node_info_size);
+void fdt_del_node_and_alias(void *blob, const char *alias);
  
 #endif /* ifdef CONFIG_OF_LIBFDT */
 #endif /* ifndef __FDT_SUPPORT_H */
...	...	@@ -976,4 +976,17 @@
976	976	}
977	977	}
978	978	#endif
	979	+
	980	+void fdt_del_node_and_alias(void blob, const char alias)
	981	+{
	982	+ int off = fdt_path_offset(blob, alias);
	983	+
	984	+ if (off < 0)
	985	+ return;
	986	+
	987	+ fdt_del_node(blob, off);
	988	+
	989	+ off = fdt_path_offset(blob, "/aliases");
	990	+ fdt_delprop(blob, off, alias);
	991	+}
...	...	@@ -82,6 +82,7 @@
82	82	int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size);
83	83
84	84	void fdt_fixup_mtdparts(void fdt, void node_info, int node_info_size);
	85	+void fdt_del_node_and_alias(void blob, const char alias);
85	86
86	87	#endif /* ifdef CONFIG_OF_LIBFDT */
87	88	#endif /* ifndef __FDT_SUPPORT_H */