Re: [PATCH net-next v3 2/8] dt-bindings: phy: add the "fsl,lynx-28g" compatible

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>]

On 10/03/2022 15:51, Ioana Ciornei wrote:
> Describe the "fsl,lynx-28g" compatible used by the Lynx 28G SerDes PHY
> driver on Layerscape based SoCs.

The message is a bit misleading, because it suggests you add only
compatible to existing bindings. Instead please look at the git log how
people usually describe it in subject and message.

> 
> Signed-off-by: Ioana Ciornei <ioana.ciornei@xxxxxxx>
> ---
> Changes in v2:
> 	- none
> Changes in v3:
> 	- 2/8: fix 'make dt_binding_check' errors
> 
>  .../devicetree/bindings/phy/fsl,lynx-28g.yaml | 98 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 99 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml b/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
> new file mode 100644
> index 000000000000..e98339ec83a7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
> @@ -0,0 +1,98 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/fsl,lynx-28g.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale Lynx 28G SerDes PHY binding
> +
> +maintainers:
> +  - Ioana Ciornei <ioana.ciornei@xxxxxxx>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,lynx-28g
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#phy-cells":
> +    const: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#phy-cells"
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +patternProperties:
> +  '^phy@[0-9a-f]$':
> +    type: object
> +    properties:
> +      reg:
> +        description:
> +          Number of the SerDes lane.
> +        minimum: 0
> +        maximum: 7
> +
> +      "#phy-cells":
> +        const: 0

Why do you need all these children? You just enumerated them, without
statuses, resources or any properties. This should be rather just index
of lynx-28g phy.

> +
> +    additionalProperties: false
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +      serdes_1: serdes_phy@1ea0000 {

node name just "phy"

> +        compatible = "fsl,lynx-28g";
> +        reg = <0x0 0x1ea0000 0x0 0x1e30>;
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        #phy-cells = <1>;
> +
> +        serdes1_lane_a: phy@0 {
> +          reg = <0>;
> +          #phy-cells = <0>;
> +        };



Best regards,
Krzysztof