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kconfig: add dt_nodelabel_path() helper

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This helper allows setting default Kconfig values based on devicetree
node properties without giving the full path to the node.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This commit is contained in:
Martí Bolívar 2020-04-22 18:06:18 -07:00 • committed by Kumar Gala
commit 1fff2358db
1 changed files with 15 additions and 0 deletions
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15
scripts/kconfig/kconfigfunctions.py
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@ -349,6 +349,20 @@ def dt_nodelabel_has_compat(kconf, _, label, compat):
return "n"
def dt_nodelabel_path(kconf, _, label):
"""
This function takes a node label (not a label property) and
returns the path to the node which has that label, or an empty
string if there is no such node.
"""
if doc_mode or edt is None:
return ""
node = edt.label2node.get(label)
return node.path if node else ""
def shields_list_contains(kconf, _, shield):
"""
Return "n" if cmake environment variable 'SHIELD_AS_LIST' doesn't exist.
@ -381,5 +395,6 @@ functions = {
"dt_node_int_prop_int": (dt_node_int_prop, 2, 2),
"dt_node_int_prop_hex": (dt_node_int_prop, 2, 2),
"dt_nodelabel_has_compat": (dt_nodelabel_has_compat, 2, 2),
"dt_nodelabel_path": (dt_nodelabel_path, 1, 1),
"shields_list_contains": (shields_list_contains, 1, 1),
}