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kconfig: Add dt_chosen_enabled function

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Add function that will return 'y' or 'n' if a node pointed to by a
chosen property exists and is enabled.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2019-11-04 10:20:59 -06:00 • committed by Kumar Gala
commit 07e5d89d86
2 changed files with 13 additions and 0 deletions
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1
doc/guides/kconfig/index.rst
View file

@ -852,6 +852,7 @@ value starting with ``0x``.
dt_node_reg_size_int(kconf, _, path, index=0, unit=None):
dt_node_reg_size_hex(kconf, _, path, index=0, unit=None):
dt_compat_enabled(kconf, _, compat):
dt_chosen_enabled(kconf, _, chosen):
dt_node_has_bool_prop(kconf, _, path, prop):
Example Usage

12
scripts/kconfig/kconfigfunctions.py
View file

@ -138,6 +138,17 @@ def dt_chosen_label(kconf, _, chosen):
return node.props["label"].val
def dt_chosen_enabled(kconf, _, chosen):
"""
This function returns "y" if /chosen contains a property named 'chosen'
that points to an enabled node, and "n" otherwise
"""
if doc_mode or edt is None:
return "n"
node = edt.chosen_node(chosen)
return "y" if node and node.enabled else "n"
def _node_reg_addr(node, index, unit):
if not node:
return 0
@ -330,6 +341,7 @@ functions = {
"dt_str_val": (dt_str_val, 1, 1),
"dt_compat_enabled": (dt_compat_enabled, 1, 1),
"dt_chosen_label": (dt_chosen_label, 1, 1),
"dt_chosen_enabled": (dt_chosen_enabled, 1, 1),
"dt_chosen_reg_addr_int": (dt_chosen_reg, 1, 4),
"dt_chosen_reg_addr_hex": (dt_chosen_reg, 1, 4),
"dt_chosen_reg_size_int": (dt_chosen_reg, 1, 4),