Subject: Re: [PATCH v2 2/5] dt-bindings: net: Add iep property in ICSSG dt binding

From: Rob Herring <[email-masked]>
Date: Mon, 21 Aug 2023 11:01:20 -0500

On Mon, Aug 07, 2023 at 04:30:45PM +0530, MD Danish Anwar wrote:
> Add iep node in ICSSG driver dt binding document.

Why?

Bindings are for h/w, not drivers. You are adding a property, not a 
node. Would be nice to know what 'iep' is without having to look at the 
diff (e.g. when running 'git log').

> 
> Signed-off-by: MD Danish Anwar <[email-masked]>
> ---
>  Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> index 8ec30b3eb760..36870238f92f 100644
> --- a/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> +++ b/Documentation/devicetree/bindings/net/ti,icssg-prueth.yaml
> @@ -52,6 +52,12 @@ properties:
>      description:
>        phandle to MII_RT module's syscon regmap
>  
> +  ti,iep:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array

phandle-array really means matrix, so you need to fully describe the 
items constraints.

> +    maxItems: 2

2 phandles or 1 phandle and 1 arg? Looks like the former from the 
example, so:

maxItems: 2
items:
  maxItems: 1

> +    description:
> +      phandle to IEP (Industrial Ethernet Peripheral) for ICSSG driver
> +
>    interrupts:
>      maxItems: 2
>      description:
> @@ -155,6 +161,7 @@ examples:
>                      "tx1-0", "tx1-1", "tx1-2", "tx1-3",
>                      "rx0", "rx1";
>          ti,mii-g-rt = <&icssg2_mii_g_rt>;
> +        ti,iep = <&icssg2_iep0>, <&icssg2_iep1>;
>          interrupt-parent = <&icssg2_intc>;
>          interrupts = <24 0 2>, <25 1 3>;
>          interrupt-names = "tx_ts0", "tx_ts1";
> -- 
> 2.34.1
>