Re: [PATCH v2 1/2] dt-bindings: drm/bridge: Add no-hpd property

[Jayesh Choudhary <j-choudhary@ti.com>]

On 11/04/23 11:36, Krzysztof Kozlowski wrote:
> On 05/04/2023 16:24, Jayesh Choudhary wrote:
>> From: Rahul T R <r-ravikumar@ti.com>
>>
>> The mhdp bridge can work without its HPD pin hooked up to the connector,
>> but the current bridge driver throws an error when hpd line is not
>> connected to the connector. For such cases, we need an indication for
>> no-hpd, using which we can bypass the hpd detection and instead use the
>> auxiliary channels connected to the DP connector to confirm the
>> connection.
>> So add no-hpd property to the bindings, to disable hpd when not
>> connected or unusable.
> 
> Your subject prefixes miss device specific part. You do not add no-hpd
> to all bridges.
> 
> It's also not drm. It is a display directory.

Sorry messed the commit heading. Will fix it.

> 
>>
>> Signed-off-by: Rahul T R <r-ravikumar@ti.com>
>> Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
>> ---
>>   .../devicetree/bindings/display/bridge/cdns,mhdp8546.yaml   | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
>> index c2b369456e4e..3a6c6d837593 100644
>> --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
>> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
>> @@ -57,6 +57,12 @@ properties:
>>     interrupts:
>>       maxItems: 1
>>   
>> +  cdns,no-hpd:
> 
> No improvements - use existing no-hpd name.
> 
> 

Okay will change it to "no-hpd"

> 
> Best regards,
> Krzysztof
>