Re: [PATCH 08/10] dt-bindings: input: touchscreen: st,stmfts: Introduce STM FTS5

[David Heidelberg]

On 01/03/2026 23:40, Dmitry Baryshkov wrote:

[...]

> > +    then:
> > +      properties:
> > +        switch-gpio:
> > +          description: Switch between SLPI and AP mode.
>
> This doesn't sounds like the GPIO on the touchscreen, more like the
> external schematic component. If it need sto be turned to one position,
> it might be better to use GPIO hog for that.

Right now yes, but the GPIO serves to switching between SLPI and AP mode at 
runtime, see [1]

The driver lack supports for SLPI, but at moment when SLPI support lands, we 
should be able do something like:

-> device starts, touchscreen works
-> screen goes to sleep, but instead of powering off touchscreen, it switches to 
SLPI mode
-> user taps at touchscreen, device wakes up

Thus I think we need to support this GPIO in the driver.

David

> > +
> > +      required:
> > +        - switch-gpio
> > +
> >   examples:
> >     - |
> >       #include <dt-bindings/interrupt-controller/irq.h>
> >
> > --
> > 2.51.0

--
David Heidelberg