scripts: kconfig: size/addr by nodelabel

Add new devicetree kconfig function to get a node size or addr by
nodelabel.

Signed-off-by: Jordan Yates <[email protected]>

Author: Jordan Yates

doc/build/kconfig/preprocessor-functions.rst

@@ -47,6 +47,10 @@ while the ``*_hex`` version returns a hexadecimal value starting with ``0x``.
    $(dt_node_reg_addr_hex,<node path>[,<index>,<unit>])
    $(dt_node_reg_size_int,<node path>[,<index>,<unit>])
    $(dt_node_reg_size_hex,<node path>[,<index>,<unit>])
+   $(dt_nodelabel_reg_addr_int,<node label>[,<index>,<unit>])
+   $(dt_nodelabel_reg_addr_hex,<node label>[,<index>,<unit>])
+   $(dt_nodelabel_reg_size_int,<node label>[,<index>,<unit>])
+   $(dt_nodelabel_reg_size_hex,<node label>[,<index>,<unit>])
    $(dt_compat_enabled,<compatible string>)
    $(dt_chosen_enabled,<property in /chosen>)
    $(dt_node_bool_prop,<node path>,<prop>)

scripts/kconfig/kconfigfunctions.py

@@ -375,6 +375,28 @@ def dt_node_reg(kconf, name, path, index=0, unit=None):
     if name == "dt_node_reg_addr_hex":
         return hex(_dt_node_reg_addr(kconf, path, index, unit))
 
+def dt_nodelabel_reg(kconf, name, label, index=0, unit=None):
+    """
+    This function is like dt_node_reg(), but the 'label' argument
+    should be a node label, like "foo" is here:
+
+       foo: some-node { ... };
+    """
+    if doc_mode or edt is None:
+        node = None
+    else:
+        node = edt.label2node.get(label)
+
+    if name == "dt_nodelabel_reg_size_int":
+        return str(_dt_node_reg_size(kconf, node.path, index, unit)) if node else "0"
+    if name == "dt_nodelabel_reg_size_hex":
+        return hex(_dt_node_reg_size(kconf, node.path, index, unit)) if node else "0x0"
+    if name == "dt_nodelabel_reg_addr_int":
+        return str(_dt_node_reg_addr(kconf, node.path, index, unit)) if node else "0"
+    if name == "dt_nodelabel_reg_addr_hex":
+        return hex(_dt_node_reg_addr(kconf, node.path, index, unit)) if node else "0x0"
+
+
 def _dt_node_bool_prop_generic(node_search_function, search_arg, prop):
     """
     This function takes the 'node_search_function' and uses it to search for
@@ -764,6 +786,10 @@ def shields_list_contains(kconf, _, shield):
         "dt_node_reg_addr_hex": (dt_node_reg, 1, 3),
         "dt_node_reg_size_int": (dt_node_reg, 1, 3),
         "dt_node_reg_size_hex": (dt_node_reg, 1, 3),
+        "dt_nodelabel_reg_addr_int": (dt_nodelabel_reg, 1, 3),
+        "dt_nodelabel_reg_addr_hex": (dt_nodelabel_reg, 1, 3),
+        "dt_nodelabel_reg_size_int": (dt_nodelabel_reg, 1, 3),
+        "dt_nodelabel_reg_size_hex": (dt_nodelabel_reg, 1, 3),
         "dt_node_bool_prop": (dt_node_bool_prop, 2, 2),
         "dt_nodelabel_bool_prop": (dt_nodelabel_bool_prop, 2, 2),
         "dt_chosen_bool_prop": (dt_chosen_bool_prop, 2, 2),