Re: [PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property

[Krzysztof Kozlowski]

On 21/03/2023 13:02, Jayesh Choudhary wrote:
>>
>>> +    type: boolean
>>> +    description:
>>> +      Set if the HPD line on the bridge isn't hooked up to anything or is
>>> +      otherwise unusable.
>>
>> It's the property of the panel, not bridge. Unless you want to say that
>> bridge physically does not have HPD? Does it follow the standard in such
>> case?
> 
> MHDP does have hpd. But the mhdp driver should handle the cases when the

This is about bindings, not driver. Your driver can still handle this as
it wishes.

> hpd pin of bridge is not connected to that of the DP-connector. This is 
> to add support for that. (optional property)

Which is indicated by panel no-hpd, right? Or you mean now that HPD
physically cannot go to panel because it is cut on the bridge side? But
isn't this the same case (from hardware/bindings point, not driver) as
panel would not have HPD?


Best regards,
Krzysztof