[PATCH v3 09/10] dt-bindings: pinctrl: stm32: Support I/O synchronization parameters

[Conor Dooley]

On Wed, Oct 15, 2025 at 02:56:56PM +0200, Antonio Borneo wrote:
> On Tue, 2025-10-14 at 19:10 +0100, Conor Dooley wrote:
> > On Tue, Oct 14, 2025 at 04:04:50PM +0200, Antonio Borneo wrote:

> > 
> > > +
> > > +          st,io-sync:
> > > +            description: |
> > > +              IO synchronization through re-sampling or inversion
> > > +              0: data or clock GPIO pass-through
> > > +              1: clock GPIO inverted
> > > +              2: data GPIO re-sampled on clock rising edge
> > > +              3: data GPIO re-sampled on clock falling edge
> > > +              4: data GPIO re-sampled on both clock edges
> > > +            $ref: /schemas/types.yaml#/definitions/uint32
> > > +            enum: [0, 1, 2, 3, 4]
> > 
> > I really don't like this kinds of properties that lead to "random"
> > numbers in devicetree. I'd much rather see a string list here.
> 
> Agree!
> I just need to figure out some reasonably short but still meaningful
> string for them.

pass-through
inverted
rising-edge
falling-edge
both-edges

perhaps?
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