linux-kernel - Re: [PATCH net-next v5 04/13] dt-bindings: net: pcs: add bindings for Renesas RZ/N1 MII converter

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Date:   Fri, 20 May 2022 09:09:23 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Clément Léger <clement.leger@...tlin.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Herve Codina <herve.codina@...tlin.com>,
        Miquèl Raynal <miquel.raynal@...tlin.com>,
        Milan Stevanovic <milan.stevanovic@...com>,
        Jimmy Lalande <jimmy.lalande@...com>,
        Pascal Eberhard <pascal.eberhard@...com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH net-next v5 04/13] dt-bindings: net: pcs: add bindings for
 Renesas RZ/N1 MII converter

Hi Clément,

On Thu, May 19, 2022 at 5:32 PM Clément Léger <clement.leger@...tlin.com> wrote:
> This MII converter can be found on the RZ/N1 processor family. The MII
> converter ports are declared as subnodes which are then referenced by
> users of the PCS driver such as the switch.
>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> Signed-off-by: Clément Léger <clement.leger@...tlin.com>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
> @@ -0,0 +1,162 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/pcs/renesas,rzn1-miic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/N1 MII converter
> +
> +maintainers:
> +  - Clément Léger <clement.leger@...tlin.com>
> +
> +description: |
> +  This MII converter is present on the Renesas RZ/N1 SoC family. It is
> +  responsible to do MII passthrough or convert it to RMII/RGMII.
> +
> +properties:
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +  compatible:
> +    items:
> +      - enum:
> +          - renesas,r9a06g032-miic
> +      - const: renesas,rzn1-miic
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: MII reference clock
> +      - description: RGMII reference clock
> +      - description: RMII reference clock
> +      - description: AHB clock used for the MII converter register interface

Please add clock-names (and make it required), as there are multiple clocks.

The rest LGTM (from an SoC integration PoV), so
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds