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kconfig: kconfigfunctions: update dt_str_val

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Clarify the docs for dt_str_val that if the name isn't found we return
and empty string.  Also cleanup the code slightly as we don't need to
escape the double quote.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2019-02-08 10:59:49 -06:00 • committed by Kumar Gala
commit f2ef52f122
2 changed files with 5 additions and 3 deletions
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3
doc/guides/kconfig/index.rst
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@ -639,7 +639,8 @@ Device Tree Related Functions
dt_str_val(kconf, _, name):
This function looks up 'name' in the DTS generated "conf" style database
and if its found it will return the value as string.
and if its found it will return the value as string. if its not found we
return an empty string.
Example Usage
=============

5
scripts/kconfig/kconfigfunctions.py
View file

@ -79,12 +79,13 @@ def dt_hex_val(kconf, _, name, unit=None):
def dt_str_val(kconf, _, name):
"""
This function looks up 'name' in the DTS generated "conf" style database
and if its found it will return the value as string.
and if its found it will return the value as string. If its not found we
return an empty string.
"""
if doc_mode or name not in dt_defines:
return ""
return dt_defines[name].strip('\"')
return dt_defines[name].strip('"')
functions = {
"dt_int_val": (dt_int_val, 1, 2),