Re: [PATCH v2 tty-next 1/2] dt-bindings: serial: ni,ni16650: add bindings

[Krzysztof Kozlowski]

On 10/04/2023 23:11, Brenda Streiff wrote:
> Add bindings for the NI 16550 UART.
> 
> Signed-off-by: Brenda Streiff <brenda.streiff@xxxxxx>
> Cc: Gratian Crisan <gratian.crisan@xxxxxx>
> Cc: Jason Smith <jason.smith@xxxxxx>

Thank you for your patch. There is something to discuss/improve.

> ---
>  .../bindings/serial/ni,ni16550.yaml           | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/ni,ni16550.yaml
> 
> diff --git a/Documentation/devicetree/bindings/serial/ni,ni16550.yaml b/Documentation/devicetree/bindings/serial/ni,ni16550.yaml
> new file mode 100644
> index 000000000000..13928e89f5aa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/ni,ni16550.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/serial/ni,ni16550.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NI 16550 asynchronous serial interface (UART)
> +
> +maintainers:
> +  - Brenda Streiff <brenda.streiff@xxxxxx>
> +
> +allOf:
> +  - $ref: serial.yaml#
> +
> +properties:
> +  compatible:
> +    const: ni,ni16550
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clock-frequency: true

I missed it last time - why do you need this property? You do not have
any clock input, so which clock's frequency is it?

Best regards,
Krzysztof