netdev - Re: [PATCH net-next v2 2/3] dt-bindings: net: dsa: realtek: add reset controller

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Date: Mon, 30 Oct 2023 08:15:51 -0500
From: Rob Herring <robh@...nel.org>
To: Luiz Angelo Daros de Luca <luizluca@...il.com>
Cc: netdev@...r.kernel.org, linus.walleij@...aro.org, alsi@...g-olufsen.dk, andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com, olteanv@...il.com, davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com, krzk+dt@...nel.org, arinc.unal@...nc9.com, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v2 2/3] dt-bindings: net: dsa: realtek: add
 reset controller

On Fri, Oct 27, 2023 at 04:00:56PM -0300, Luiz Angelo Daros de Luca wrote:
> Realtek switches can use a reset controller instead of reset-gpios.
> 
> Signed-off-by: Luiz Angelo Daros de Luca <luizluca@...il.com>
> Cc: devicetree@...r.kernel.org
> ---
>  .../devicetree/bindings/net/dsa/realtek.yaml  | 75 +++++++++++++++++++
>  1 file changed, 75 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/realtek.yaml b/Documentation/devicetree/bindings/net/dsa/realtek.yaml
> index 46e113df77c8..ef7b27c3b1a3 100644
> --- a/Documentation/devicetree/bindings/net/dsa/realtek.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/realtek.yaml
> @@ -59,6 +59,9 @@ properties:
>      description: GPIO to be used to reset the whole device
>      maxItems: 1
>  
> +  resets:
> +    maxItems: 1
> +
>    realtek,disable-leds:
>      type: boolean
>      description: |
> @@ -385,3 +388,75 @@ examples:
>                      };
>              };
>        };
> +
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    platform {
> +            switch {
> +                    compatible = "realtek,rtl8365mb";
> +                    mdc-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
> +                    mdio-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
> +
> +                    resets = <&rst 8>;
> +
> +                    ethernet-ports {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            ethernet-port@0 {
> +                                    reg = <0>;
> +                                    label = "wan";
> +                                    phy-handle = <&ethphy-0>;
> +                            };
> +                            ethernet-port@1 {
> +                                    reg = <1>;
> +                                    label = "lan1";
> +                                    phy-handle = <&ethphy-1>;
> +                            };
> +                            ethernet-port@2 {
> +                                    reg = <2>;
> +                                    label = "lan2";
> +                                    phy-handle = <&ethphy-2>;
> +                            };
> +                            ethernet-port@3 {
> +                                    reg = <3>;
> +                                    label = "lan3";
> +                                    phy-handle = <&ethphy-3>;
> +                            };
> +                            ethernet-port@4 {
> +                                    reg = <4>;
> +                                    label = "lan4";
> +                                    phy-handle = <&ethphy-4>;
> +                            };
> +                            ethernet-port@5 {
> +                                    reg = <5>;
> +                                    ethernet = <&eth0>;
> +                                    phy-mode = "rgmii";
> +                                    fixed-link {
> +                                            speed = <1000>;
> +                                            full-duplex;
> +                                    };
> +                            };
> +                    };
> +
> +                    mdio {
> +                            compatible = "realtek,smi-mdio";
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            ethphy-0: ethernet-phy@0 {

You didn't test your binding (make dt_binding_check).

'-' is not valid in labels.


Why do we have a whole other example just for 'resets' instead of 
'reset-gpios'? That's not really worth it.

Rob