netdev - Re: [PATCH v2 2/8] dt-bindings: phy: renesas: Document Renesas Ethernet SERDES

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Date:   Thu, 22 Sep 2022 09:28:59 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        kishon@...com, vkoul@...nel.org, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        richardcochran@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, geert+renesas@...der.be
Cc:     andrew@...n.ch, linux-phy@...ts.infradead.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2 2/8] dt-bindings: phy: renesas: Document Renesas
 Ethernet SERDES

On 21/09/2022 10:47, Yoshihiro Shimoda wrote:
> Document Renesas Etherent SERDES for R-Car S4-8 (r8a779f0).
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
> ---
>  .../bindings/phy/renesas,ether-serdes.yaml    | 54 +++++++++++++++++++
>  1 file changed, 54 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/renesas,ether-serdes.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/renesas,ether-serdes.yaml b/Documentation/devicetree/bindings/phy/renesas,ether-serdes.yaml
> new file mode 100644
> index 000000000000..04d650244a6a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/renesas,ether-serdes.yaml

Filename based on compatible, so renesas,r8a779f0-ether-serdes.yaml

> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/renesas,ether-serdes.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas Ethernet SERDES
> +
> +maintainers:
> +  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
> +
> +properties:
> +  compatible:
> +    const: renesas,r8a779f0-ether-serdes
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  '#phy-cells':
> +    description: Port number of SERDES.
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - resets
> +  - power-domains
> +  - '#phy-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/r8a779f0-cpg-mssr.h>
> +    #include <dt-bindings/power/r8a779f0-sysc.h>
> +
> +    ethernet@...80000 {

Hm, isn't this a phy?

> +            compatible = "renesas,r8a779f0-ether-serdes";
> +            reg = <0xe6444000 0xc00>;
> +            clocks = <&cpg CPG_MOD 1506>;
> +            power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
> +            resets = <&cpg 1506>;
> +            #phy-cells = <1>;
> +    };

Best regards,
Krzysztof