netdev - Re: [RFC PATCH net-next 2/9] dt-bindings: net: Expand pcs-handle to an array

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Date:   Tue, 12 Jul 2022 11:06:20 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Madalin Bucur <madalin.bucur@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        linux-kernel@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Andrew Lunn <andrew@...n.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [RFC PATCH net-next 2/9] dt-bindings: net: Expand pcs-handle to
 an array

Hi Krzysztof,

On 7/12/22 4:51 AM, Krzysztof Kozlowski wrote:
> On 11/07/2022 18:05, Sean Anderson wrote:
>> This allows multiple phandles to be specified for pcs-handle, such as
>> when multiple PCSs are present for a single MAC. To differentiate
>> between them, also add a pcs-names property.
>> 
>> Signed-off-by: Sean Anderson <sean.anderson@...o.com>
>> ---
>> 
>>  .../devicetree/bindings/net/ethernet-controller.yaml       | 7 ++++++-
>>  1 file changed, 6 insertions(+), 1 deletion(-)
>> 
>> diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
>> index 4f15463611f8..c033e536f869 100644
>> --- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
>> +++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
>> @@ -107,11 +107,16 @@ properties:
>>      $ref: "#/properties/phy-connection-type"
>>  
>>    pcs-handle:
>> -    $ref: /schemas/types.yaml#/definitions/phandle
>> +    $ref: /schemas/types.yaml#/definitions/phandle-array
>>      description:
>>        Specifies a reference to a node representing a PCS PHY device on a MDIO
>>        bus to link with an external PHY (phy-handle) if exists.
> 
> You need to update all existing bindings and add maxItems:1.
> 
>>  
>> +  pcs-names:
> 
> To be consistent with other properties this should be "pcs-handle-names"
> and the other "pcs-handles"... and then actually drop the "handle".

Sorry, I'm not sure what you're recommending in the second half here.

>> +    $ref: /schemas/types.yaml#/definitions/string-array
>> +    description:
>> +      The name of each PCS in pcs-handle.
> 
> You also need:
> dependencies:
>   pcs-names: [ pcs-handle ]
> 

OK

--Sean