linux-kernel - Re: [PATCH 1/2] dt-bindings: display: simple: support non-default data-mapping

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Message-ID: <a45ac6da-8e29-9b2d-6172-8bc043afc415@pengutronix.de>
Date:   Thu, 4 May 2023 09:35:59 +0200
From:   Johannes Zink <j.zink@...gutronix.de>
To:     Rob Herring <robh@...nel.org>
Cc:     devicetree@...r.kernel.org, daniel@...ll.ch, sam@...nborg.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        thierry.reding@...il.com, krzysztof.kozlowski+dt@...aro.org,
        airlied@...il.com, kernel@...gutronix.de,
        patchwork-jzi@...gutronix.de
Subject: Re: [PATCH 1/2] dt-bindings: display: simple: support non-default
 data-mapping

Hi Rob,

On 4/19/23 08:29, Johannes Zink wrote:
[snip]


>>
>> Why do you duplicate what's in display/lvds.yaml?
> 
> I don't think any of the other properties from display/lvds.yaml 
> currently make any sense to be put into simple-panel, thus I selectively 
> picked this one.
> 
> If there is a way to selectively pick only the data_mapping, please let 
> me know and I send a V2
> 
>>
>> This also just made 'data-mapping' valid on non-LVDS panels.
> 
> what is the canonical way of restricting the data-mapping property to 
> LVDS panels only? Or ist the proper way to go to move the panel I use 
> (innolux,g101ice-l01) to its own yaml file, include panel-simple.yaml 
> and leave the others alone? I think other LVDS panels might benefit from 
> this series though, which is why I think it makes sense to add the 
> property to all LVDS panels.
> 

gentle ping. How do you suggest should I proceed here? Maybe pulling the 
data-mapping definition in a separate file and include it in both files?

Can I enable the property selectively, e.g. only on the 
innolux,g101ice-l01 panel, in order not to enable it on non-LVDS panels 
or on LVDS-panels which might not support it?

Best regards
Johannes

[snip]
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