libfdt: Add get_property() and del_node()

Add support for these functions in the Python binding. This patch stands in for a pending upstream change. Signed-off-by: Simon Glass <sjg@chromium.org>

libfdt: Add get_property() and del_node()
Add support for these functions in the Python binding. This patch stands in for a pending upstream change. Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass
1 parent a1e0085519
Showing 1 changed file with 32 additions and 0 deletions Side-by-side Diff
scripts/dtc/pylibfdt/libfdt.i_shipped
@@ -398,6 +398,27 @@
             return pdata
         return Property(pdata[0], pdata[1])
  
+    def get_property(self, nodeoffset, prop_name, quiet=()):
+        """Obtains a property by name
+
+        Args:
+            nodeoffset: Offset to the node to check
+            prop_name: Name of property to get
+            quiet: Errors to ignore (empty to raise on all errors)
+
+        Returns:
+            Property object, or None if not found
+
+        Raises:
+            FdtException on error (e.g. invalid prop_offset or device
+            tree format)
+        """
+        pdata = check_err_null(
+                fdt_get_property(self._fdt, nodeoffset, prop_name), quiet)
+        if isinstance(pdata, (int)):
+            return pdata
+        return Property(pdata[0], pdata[1])
+
     @staticmethod
     def create_empty_tree(size, quiet=()):
         """Create an empty device tree ready for use
@@ -631,6 +652,17 @@
             FdtException if no node found or other error occurs
         """
         return check_err(fdt_node_offset_by_phandle(self._fdt, phandle), quiet)
+
+    def del_node(self, nodeoffset):
+        """Delete a node
+
+        Args:
+            nodeoffset: Node offset containing property to delete
+
+        Raises:
+            FdtError if the node does not exist, or another error occurs
+        """
+        return check_err(fdt_del_node(self._fdt, nodeoffset))
  
  
 class Property(bytearray):
...	...	@@ -398,6 +398,27 @@
398	398	return pdata
399	399	return Property(pdata[0], pdata[1])
400	400
	401	+ def get_property(self, nodeoffset, prop_name, quiet=()):
	402	+ """Obtains a property by name
	403	+
	404	+ Args:
	405	+ nodeoffset: Offset to the node to check
	406	+ prop_name: Name of property to get
	407	+ quiet: Errors to ignore (empty to raise on all errors)
	408	+
	409	+ Returns:
	410	+ Property object, or None if not found
	411	+
	412	+ Raises:
	413	+ FdtException on error (e.g. invalid prop_offset or device
	414	+ tree format)
	415	+ """
	416	+ pdata = check_err_null(
	417	+ fdt_get_property(self._fdt, nodeoffset, prop_name), quiet)
	418	+ if isinstance(pdata, (int)):
	419	+ return pdata
	420	+ return Property(pdata[0], pdata[1])
	421	+
401	422	@staticmethod
402	423	def create_empty_tree(size, quiet=()):
403	424	"""Create an empty device tree ready for use
...	...	@@ -631,6 +652,17 @@
631	652	FdtException if no node found or other error occurs
632	653	"""
633	654	return check_err(fdt_node_offset_by_phandle(self._fdt, phandle), quiet)
	655	+
	656	+ def del_node(self, nodeoffset):
	657	+ """Delete a node
	658	+
	659	+ Args:
	660	+ nodeoffset: Node offset containing property to delete
	661	+
	662	+ Raises:
	663	+ FdtError if the node does not exist, or another error occurs
	664	+ """
	665	+ return check_err(fdt_del_node(self._fdt, nodeoffset))
634	666
635	667
636	668	class Property(bytearray):