linux-kernel - Re: [PATCH v2 8/9] media: dt-bindings: Add Intel Displayport RX IP

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Date: Mon, 26 Feb 2024 18:29:04 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Paweł Anikiel <panikiel@...gle.com>
Cc: airlied@...il.com, akpm@...ux-foundation.org, conor+dt@...nel.org,
 daniel@...ll.ch, dinguyen@...nel.org, hverkuil-cisco@...all.nl,
 krzysztof.kozlowski+dt@...aro.org, maarten.lankhorst@...ux.intel.com,
 mchehab@...nel.org, mripard@...nel.org, robh+dt@...nel.org,
 tzimmermann@...e.de, devicetree@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-media@...r.kernel.org, chromeos-krk-upstreaming@...gle.com,
 ribalda@...omium.org
Subject: Re: [PATCH v2 8/9] media: dt-bindings: Add Intel Displayport RX IP

On 26/02/2024 13:43, Paweł Anikiel wrote:
>>>>> +  intel,max-stream-count:
>>>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>>>> +    description: Max stream count configuration parameter
>>>>> +
>>>>> +  port:
>>>>> +    $ref: /schemas/graph.yaml#/properties/port
>>>>> +    description: SST main link
>>>>
>>>> I don't understand why you have both port and ports. Shouldn't this be
>>>> under ports?
>>>
>>> I put both so that you can use the shorter port property when the
>>> device only has one port (i.e. no MST support). It would work fine
>>> without it. If you think that's unnecessary, I can remove it (and use
>>> the ports property even if there is only one).
>>
>> No, it is fine, but then you need allOf: which will restrict to only one
>> of them: either port or ports.
> 
> There already is an allOf below that says that ports is required for
> MST support and port is required otherwise. Isn't this enough?

Add both port and ports and see if it is enough.

Best regards,
Krzysztof