[PATCH 1/2] dt-bindings: drm/bridge: Add no-hpd property
Krzysztof Kozlowski
krzysztof.kozlowski at linaro.org
Tue Mar 21 12:38:06 UTC 2023
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
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