Messages in this thread Patch in this message | | | From | Flavio Suligoi <> | Subject | [PATCH v1] Documentation: ACPI: add new rule for gpio-line-names | Date | Fri, 8 Jan 2021 16:24:47 +0100 |
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The gpio-line-names lists must respect some rules.
This patch adds a new rule in documentation, to avoid the use of duplicate names in the same gpiochip.
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> --- Documentation/firmware-guide/acpi/gpio-properties.rst | 1 + 1 file changed, 1 insertion(+)
diff --git a/Documentation/firmware-guide/acpi/gpio-properties.rst b/Documentation/firmware-guide/acpi/gpio-properties.rst index b36aa3e743d8..4e264c16ddff 100644 --- a/Documentation/firmware-guide/acpi/gpio-properties.rst +++ b/Documentation/firmware-guide/acpi/gpio-properties.rst @@ -146,6 +146,7 @@ following rules (see also the examples): other words, it is not mandatory to fill all the GPIO lines - empty names are allowed (two quotation marks ``""`` correspond to an empty name) + - names inside one GPIO controller/expander must be unique Example of a GPIO controller of 16 lines, with an incomplete list with two empty names:: -- 2.25.1
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