dt-bindings: serial: Add label property in serial.yaml

When there is more than one serial port present, the property 'label'
allows a custom name to be used for briefly describe the usage or position
of each serial port.

Without this "label" property, many dtbs_check warnings similar to the
following are reported:
arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dt.yaml: \
serial@ffd74000: Additional properties are not allowed ('label' was unexpected)
        From schema: Documentation/devicetree/bindings/serial/pl011.yaml

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210506132049.1513-3-thunder.leizhen@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhen Lei 2021-05-06 21:20:49 +08:00 committed by Greg Kroah-Hartman
parent 8f082dcf2c
commit e27671f663

View File

@ -23,6 +23,8 @@ properties:
$nodename:
pattern: "^serial(@.*)?$"
label: true
cts-gpios:
maxItems: 1
description: