netdev - Re: [PATCH] dt-bindings: net: xilinx_gmii2rgmii: Convert to json schema

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Message-ID: <391132d5-de6b-8208-8996-bb3db250d9c4@linaro.org>
Date: Fri, 14 Jul 2023 06:17:07 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Andrew Lunn <andrew@...n.ch>
Cc: Pranavi Somisetty <pranavi.somisetty@....com>, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 michal.simek@....com, harini.katakam@....com, git@....com,
 radhey.shyam.pandey@....com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] dt-bindings: net: xilinx_gmii2rgmii: Convert to json
 schema

On 13/07/2023 21:30, Andrew Lunn wrote:
> On Thu, Jul 13, 2023 at 08:53:34PM +0200, Krzysztof Kozlowski wrote:
>> On 13/07/2023 17:59, Andrew Lunn wrote:
>>>>> +examples:
>>>>> +  - |
>>>>> +    mdio {
>>>>> +        #address-cells = <1>;
>>>>> +        #size-cells = <0>;
>>>>> +        phy: ethernet-phy@0 {
>>>>> +            reg = <0>;
>>>>> +        };
>>>>
>>>> Drop this node, quite obvious.
>>>
>>> Dumb question. Isn't it needed since it is referenced by phy-handle =
>>> <&phy> below. Without it, the fragment is not valid DT and so the
>>> checking tools will fail?
>>
>> No, because the example is compiled with silencing missing phandles.
> 
> Ah, thanks.
> 
> This is a rather odd device, there is no other like it in mainline, so
> i think having that PHY is useful, even if you think it is obvious
> what is going on here.

For almost all other devices in other subsystems we do not provides such
nodes. The "ethernet-phy" node should be obvious because nothing else is
expected to be in "phy-handle". However, if you find it useful, then I
am also fine with it.

Best regards,
Krzysztof