RE: [PATCH 2/2] dt-bindings: panel-simple-dsi: Add generic panel-dsi

[Johan Adolfsson]

-----Original Message-----
From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> 
Sent: den 19 april 2024 01:05
To: Johan Adolfsson <Johan.Adolfsson@xxxxxxxx>; Neil Armstrong <neil.armstrong@xxxxxxxxxx>; Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>; Sam Ravnborg <sam@xxxxxxxxxxxx>; Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>; Maxime Ripard <mripard@xxxxxxxxxx>; Thomas Zimmermann <tzimmermann@xxxxxxx>; David Airlie <airlied@xxxxxxxxx>; Daniel Vetter <daniel@xxxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>; Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>; Conor Dooley <conor+dt@xxxxxxxxxx>; Thierry Reding <thierry.reding@xxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; kernel <kernel@xxxxxxxx>
Subject: Re: [PATCH 2/2] dt-bindings: panel-simple-dsi: Add generic panel-dsi

>On 18/04/2024 16:01, Johan Adolfsson wrote:
>> panel-dsi is similar to panel-dpi with overridable timings
>
>???

I guess a more correct description would be 
"panel-dsi is a fallback in a similar way that panel-dpi is in panel-dpi.yaml .."?

...
>> a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yam
>> l
>> +++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi
>> +++ .yaml
>> @@ -56,6 +56,8 @@ properties:
>>        - samsung,sofef00
>>          # Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
>>        - tdo,tl070wsh30
>> +        # Generic dsi panel with timing overridable
>> +      - panel-dsi
>
>? Devices are not generic. This is very confusing and commit msg does not help me. Compatibles *must* be specific, see writing-bindings.

I guess I see this a generic fallback, that handles any dsi panel as long as the correct timing etc is specified in devictree, similar to what panel-dpi is in panel-dpi.yaml
Maybe phrasing it similar to panel-dpi.yaml is better?

>Best regards,
>Krzysztof

Best regards
/Johan