Re: [PATCH 1/1] dt-bindings: serial: Add label property for pl011

[Rob Herring <robh@kernel.org>]

On Thu, Apr 15, 2021 at 03:31:05PM +0800, Zhen Lei wrote:
> When there is more than one pl011 serial port present, the label property
> 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

I think this should go into serial.yaml instead.

> 
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
> ---
>  Documentation/devicetree/bindings/serial/pl011.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/serial/pl011.yaml b/Documentation/devicetree/bindings/serial/pl011.yaml
> index 1f8e9f2644b6b80..303c7746423f503 100644
> --- a/Documentation/devicetree/bindings/serial/pl011.yaml
> +++ b/Documentation/devicetree/bindings/serial/pl011.yaml
> @@ -34,6 +34,9 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  label:
> +    maxItems: 1

label is always a single string and so 'maxItems' is always 1. Just 
need:

label: true

> +
>    interrupts:
>      maxItems: 1
>  
> -- 
> 2.26.0.106.g9fadedd
> 
>