Re: [PATCH v2 2/5] dt-bindings: display: ssd1307fb: Extend schema for SPI controllers

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On Tue, Apr 12, 2022 at 10:12:32AM +0200, Javier Martinez Canillas wrote:
> On 4/12/22 10:07, Geert Uytterhoeven wrote:
> > Hi Javier,
> 
> [snip]
> 
> >>
> >> Do you have any hints here on how I should enforce this in the schema ?
> >>
> >> Or if you think that a comment is enough, then I will add it in v3.
> > 
> > I don't know how to make it required for SPI, if possible at all.
> >
> 
> I see. Let's go with a comment then and we can later enforce it, if someone
> knows if is possible / how to do it.

It's not possible unless we annotate child nodes with something from the 
parent. '$nodename' is the one and only example of that. 

Really, this falls below the bar of what I'm concerned about checking. 
Ask me again when the conversions are all done (only ~2K to go :( ).

Rob



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