linux-kernel - Re: [PATCH net-next 4/8] dt-bindings: net: add DT bindings for Microsemi Ocelot Switch

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Message-ID: <a5db6109-c5d9-f573-893c-f7d66c3168c2@gmail.com>
Date:   Fri, 23 Mar 2018 14:11:35 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Allan Nielsen <Allan.Nielsen@...rosemi.com>,
        razvan.stefanescu@....com, po.liu@....com,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...ux-mips.org, Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH net-next 4/8] dt-bindings: net: add DT bindings for
 Microsemi Ocelot Switch

On 03/23/2018 01:11 PM, Alexandre Belloni wrote:
> DT bindings for the Ethernet switch found on Microsemi Ocelot platforms.
> 
> Cc: Rob Herring <robh+dt@...nel.org>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> ---
>  .../devicetree/bindings/net/mscc-ocelot.txt        | 62 ++++++++++++++++++++++
>  1 file changed, 62 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/mscc-ocelot.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/mscc-ocelot.txt b/Documentation/devicetree/bindings/net/mscc-ocelot.txt
> new file mode 100644
> index 000000000000..ee092a85b5a0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/mscc-ocelot.txt
> @@ -0,0 +1,62 @@
> +Microsemi Ocelot network Switch
> +===============================
> +
> +The Microsemi Ocelot network switch can be found on Microsemi SoCs (VSC7513,
> +VSC7514)
> +
> +Required properties:
> +- compatible: Should be "mscc,ocelot-switch"
> +- reg: Must contain an (offset, length) pair of the register set for each
> +  entry in reg-names.
> +- reg-names: Must include the following entries:
> +  - "sys"
> +  - "rew"
> +  - "qs"
> +  - "hsio"
> +  - "qsys"
> +  - "ana"
> +  - "portX" with X from 0 to the number of last port index available on that
> +    switch
> +- interrupts: Should contain the switch interrupts for frame extraction and
> +  frame injection
> +- interrupt-names: should contain the interrupt names: "xtr", "inj"

You are not documenting the "ports" subnode(s).Please move the
individual ports definition under a ports subnode, mainly for two reasons:

- it makes it easy at the .dtsi level to have all ports disabled by default

- this makes you strictly conforming to the DSA binding for Ethernet
switches and this is good for consistency (both parsing code and just
representation).
-- 
Florian