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Message-ID: <CAMuHMdXRCggkTSxfnSHvz3N2Oekuw7y5Sy2AKkqZpZzK_Eg_ng@mail.gmail.com>
Date:   Fri, 20 May 2022 09:13:23 +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>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        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>
Subject: Re: [PATCH net-next v5 06/13] dt-bindings: net: dsa: add bindings for
 Renesas RZ/N1 Advanced 5 port switch

Hi Clément,

On Thu, May 19, 2022 at 5:32 PM Clément Léger <clement.leger@...tlin.com> wrote:
> Add bindings for Renesas RZ/N1 Advanced 5 port switch. This switch is
> present on Renesas RZ/N1 SoC and was probably provided by MoreThanIP.
> This company does not exists anymore and has been bought by Synopsys.
> Since this IP can't be find anymore in the Synospsy portfolio, lets use
> Renesas as the vendor compatible for this IP.
>
> Signed-off-by: Clément Léger <clement.leger@...tlin.com>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
> @@ -0,0 +1,131 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/dsa/renesas,rzn1-a5psw.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/N1 Advanced 5 ports ethernet switch
> +
> +maintainers:
> +  - Clément Léger <clement.leger@...tlin.com>
> +
> +description: |
> +  The advanced 5 ports switch is present on the Renesas RZ/N1 SoC family and
> +  handles 4 ports + 1 CPU management port.
> +
> +allOf:
> +  - $ref: dsa.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - renesas,r9a06g032-a5psw
> +      - const: renesas,rzn1-a5psw
> +
> +  reg:
> +    maxItems: 1
> +
> +  mdio:
> +    $ref: /schemas/net/mdio.yaml#
> +    unevaluatedProperties: false
> +
> +  clocks:
> +    items:
> +      - description: AHB clock used for the switch register interface
> +      - description: Switch system clock
> +
> +  clock-names:
> +    items:
> +      - const: hclk
> +      - const: clk

(Good, "clock-names" is present ;-)

Missing "power-domains" property.

> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> +
> +    switch@...50000 {
> +        compatible = "renesas,r9a06g032-a5psw", "renesas,rzn1-a5psw";
> +        reg = <0x44050000 0x10000>;
> +        clocks = <&sysctrl R9A06G032_HCLK_SWITCH>, <&sysctrl R9A06G032_CLK_SWITCH>;
> +        clock-names = "hclk", "clk";
> +        pinctrl-names = "default";
> +        pinctrl-0 = <&pins_mdio1>, <&pins_eth3>, <&pins_eth4>;

Usually we don't list pinctrl-* properties in examples.

The rest LGTM (from an SoC integration PoV), so with the above fixed
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

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