pylibfdt: Add support for fdt_get_phandle()

Add this into the class to simplify use of this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

pylibfdt/libfdt.i

@@ -348,6 +348,18 @@ class Fdt:
             return pdata
         return bytearray(pdata[0])
 
+    def get_phandle(self, nodeoffset):
+        """Get the phandle of a node
+
+        Args:
+            nodeoffset: Node offset to check
+
+        Returns:
+            phandle of node, or 0 if the node has no phandle or another error
+            occurs
+        """
+        return fdt_get_phandle(self._fdt, nodeoffset)
+
 
 class Property:
     """Holds a device tree property name and value.

tests/pylibfdt_tests.py

@@ -289,5 +289,11 @@ class PyLibfdtTests(unittest.TestCase):
         node2 = self.fdt.path_offset('/subnode@2')
         self.assertEquals(0x2000, libfdt.fdt_get_phandle(self.fdt._fdt, node2))
 
+    def testGetPhandle(self):
+        """Test for the get_phandle() method"""
+        self.assertEquals(0, self.fdt.get_phandle(0))
+        node2 = self.fdt.path_offset('/subnode@2')
+        self.assertEquals(0x2000, self.fdt.get_phandle(node2))
+
 if __name__ == "__main__":
     unittest.main()