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SubjectRe: [PATCH v6 5/6] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings
> > > > +  GPIO controller module provides GPIO-s for the SFP slots.
> > > > + It is split into 3 controllers, one output only for the SFP TX disable
> > > > + pins, one input only for the SFP present pins and one input only for
> > > > + the SFP LOS pins.

Late to the conversation, so i might be asking questions already
asked...

So the PLD has restrictions? You have a collection of GPOs and a
collection of GPIs? You don't have an GPIOs?

> > > > +
> > > > +properties:
> > > > + compatible:
> > > > + enum:
> > > > + - delta,tn48m-gpio-sfp-tx-disable
> > > > + - delta,tn48m-gpio-sfp-present
> > > > + - delta,tn48m-gpio-sfp-los

Do these names have any real significant? Are you really forced to
connect the SFP cage in this dedicated manor? Is there any reason why
i cannot use a GPO to control an LED? A GPI for a button?

Andrew

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