linux-kernel - Re: [PATCH net-next v3 2/6] dt-bindings: net: lan966x: Extend with the analyzer interrupt

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Date:   Thu, 9 Dec 2021 10:58:58 +0000
From:   Vladimir Oltean <vladimir.oltean@....com>
To:     Horatiu Vultur <horatiu.vultur@...rochip.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>,
        "andrew@...n.ch" <andrew@...n.ch>
Subject: Re: [PATCH net-next v3 2/6] dt-bindings: net: lan966x: Extend with
 the analyzer interrupt

On Thu, Dec 09, 2021 at 10:46:11AM +0100, Horatiu Vultur wrote:
> Extend dt-bindings for lan966x with analyzer interrupt.
> This interrupt can be generated for example when the HW learn/forgets
> an entry in the MAC table.
> 
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
> ---

Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>

Why don't you describe your hardware in the device tree all at once?
Doing it piece by piece means that every time when you add a new
functionality you need to be compatible with the absence of a certain
reg, interrupt etc.

>  .../devicetree/bindings/net/microchip,lan966x-switch.yaml       | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/microchip,lan966x-switch.yaml b/Documentation/devicetree/bindings/net/microchip,lan966x-switch.yaml
> index 5bee665d5fcf..e79e4e166ad8 100644
> --- a/Documentation/devicetree/bindings/net/microchip,lan966x-switch.yaml
> +++ b/Documentation/devicetree/bindings/net/microchip,lan966x-switch.yaml
> @@ -37,12 +37,14 @@ properties:
>      items:
>        - description: register based extraction
>        - description: frame dma based extraction
> +      - description: analyzer interrupt
>  
>    interrupt-names:
>      minItems: 1
>      items:
>        - const: xtr
>        - const: fdma
> +      - const: ana
>  
>    resets:
>      items:
> -- 
> 2.33.0
>