linux-kernel - Re: [PATCH 4/4] dt-bindings: net: dsa: mediatek,mt7530: update json-schema

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Date:   Fri, 12 Aug 2022 01:09:41 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Luiz Angelo Daros de Luca <luizluca@...il.com>,
        Sander Vanheule <sander@...nheule.net>,
        René van Dorst <opensource@...rst.com>,
        Daniel Golle <daniel@...rotopia.org>, erkin.bozoglu@...ont.com,
        Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] dt-bindings: net: dsa: mediatek,mt7530: update
 json-schema

On 2.08.2022 11:46, Krzysztof Kozlowski wrote:
> On 30/07/2022 16:26, Arınç ÜNAL wrote:
>> Update the json-schema for compatible devices.
>>
>> - Define acceptable phy-mode values for CPU port of each compatible device.
>> - Remove requiring the "reg" property since the referred dsa-port.yaml
>> already does that.
>> - Require mediatek,mcm for the described MT7621 SoCs as the compatible
>> string is only used for MT7530 which is a part of the multi-chip module.
> 
> 3 separate patches.

Roger.

> 
>>
>> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
>> ---
>>   .../bindings/net/dsa/mediatek,mt7530.yaml     | 220 +++++++++++++++---
>>   1 file changed, 191 insertions(+), 29 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
>> index a88e650e910b..a37a14fba9f6 100644
>> --- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
>> +++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
>> @@ -135,35 +135,6 @@ properties:
>>         the ethsys.
>>       maxItems: 1
>>   
>> -patternProperties:
>> -  "^(ethernet-)?ports$":
>> -    type: object
> 
> Actually four patches...
> 
> I don't find this change explained in commit msg. What is more, it looks
> incorrect. All properties and patternProperties should be explained in
> top-level part.
> 
> Defining such properties (with big piece of YAML) in each if:then: is no
> readable.

I can't figure out another way. I need to require certain properties for 
a compatible string AND certain enum/const for certain properties which 
are inside patternProperties for "^(ethernet-)?port@[0-9]+$" by reading 
the compatible string.

If I put allOf:if:then under patternProperties, I can't do the latter.

Other than readability to human eyes, binding check works as intended, 
in case there's no other way to do it.

Arınç