Re: [PATCH 1/2] dt-bindings: leds: Document none trigger

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On Sun, Oct 24, 2021 at 08:05:55PM +0200, Marek Vasut wrote:
> On 10/24/21 10:41 AM, Pavel Machek wrote:
> > Hi!
> > 
> > > There is a trigger called "none" which triggers never, add it to the
> > > list of valid trigger values.
> > 
> > We can do this, but is it useful? If you avoid putting trigger
> > property, it will do the same thing.
> 
> It's not that simple. If you have a DT which specifies a trigger type and a
> DTO which overrides that trigger type, then the DTO cannot remove the
> trigger from the base DT, it has to set trigger type to "none". So I believe
> there is a valid use case for existence of the "none" type.

Sounds like an incorrect partitioning of base and overlays IMO. 

There's also already /delete-property/ directive though I'm not sure if 
that's supported in overlays.

Rob



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