scripts: Add dt_compat_any_has_prop value param

Add optional value parameter to dt_compat_any_has_prop
kconfig preprocessor function, which puts an additional constraint on
the truth of the function in that the property value must match the
parameter value.

Signed-off-by: Declan Snyder <[email protected]>

Author: decsny

doc/build/kconfig/preprocessor-functions.rst

@@ -39,7 +39,7 @@ while the ``*_hex`` version returns a hexadecimal value starting with ``0x``.
    $(dt_chosen_reg_addr_int,<property in /chosen>[,<index>,<unit>])
    $(dt_chosen_reg_size_hex,<property in /chosen>[,<index>,<unit>])
    $(dt_chosen_reg_size_int,<property in /chosen>[,<index>,<unit>])
-   $(dt_compat_any_has_prop,<compatible string>,<prop>)
+   $(dt_compat_any_has_prop,<compatible string>,<prop>[,<value>])
    $(dt_compat_any_on_bus,<compatible string>,<prop>)
    $(dt_compat_enabled,<compatible string>)
    $(dt_compat_on_bus,<compatible string>,<bus>)

scripts/kconfig/kconfigfunctions.py

@@ -738,7 +738,7 @@ def dt_compat_enabled(kconf, _, compat):
 
 def dt_compat_on_bus(kconf, _, compat, bus):
     """
-    This function takes a 'compat' and returns "y" if we find an "enabled"
+    This function takes a 'compat' and returns "y" if we find an enabled
     compatible node in the EDT which is on bus 'bus'. It returns "n" otherwise.
     """
     if doc_mode or edt is None:
@@ -751,10 +751,13 @@ def dt_compat_on_bus(kconf, _, compat, bus):
 
     return "n"
 
-def dt_compat_any_has_prop(kconf, _, compat, prop):
+def dt_compat_any_has_prop(kconf, _, compat, prop, value=None):
     """
-    This function takes a 'compat' and a 'prop' and returns "y" if any
-    node with compatible 'compat' also has a valid property 'prop'.
+    This function takes a 'compat', a 'prop', and a 'value'.
+    If value=None, the function returns "y" if any
+    enabled node with compatible 'compat' also has a valid property 'prop'.
+    If value is given, the function returns "y" if any enabled node with compatible 'compat'
+    also has a valid property 'prop' with value 'value'.
     It returns "n" otherwise.
     """
     if doc_mode or edt is None:
@@ -763,8 +766,10 @@ def dt_compat_any_has_prop(kconf, _, compat, prop):
     if compat in edt.compat2okay:
         for node in edt.compat2okay[compat]:
             if prop in node.props:
-                return "y"
-
+                if value is None:
+                    return "y"
+                elif str(node.props[prop].val) == value:
+                    return "y"
     return "n"
 
 def dt_nodelabel_has_compat(kconf, _, label, compat):
@@ -805,7 +810,7 @@ def dt_node_has_compat(kconf, _, path, compat):
 
 def dt_nodelabel_enabled_with_compat(kconf, _, label, compat):
     """
-    This function takes a 'label' and returns "y" if an "enabled" node with
+    This function takes a 'label' and returns "y" if an enabled node with
     such label can be found in the EDT and that node is compatible with the
     provided 'compat', otherwise it returns "n".
     """
@@ -1000,7 +1005,7 @@ def inc_dec(kconf, name, *args):
         "dt_has_compat": (dt_has_compat, 1, 1),
         "dt_compat_enabled": (dt_compat_enabled, 1, 1),
         "dt_compat_on_bus": (dt_compat_on_bus, 2, 2),
-        "dt_compat_any_has_prop": (dt_compat_any_has_prop, 2, 2),
+        "dt_compat_any_has_prop": (dt_compat_any_has_prop, 2, 3),
         "dt_chosen_label": (dt_chosen_label, 1, 1),
         "dt_chosen_enabled": (dt_chosen_enabled, 1, 1),
         "dt_chosen_path": (dt_chosen_path, 1, 1),