Hello.
> On Tue, Nov 12, 2013 at 10:07:13AM +0000, Alexander Shiyan wrote:
> > This patch adds a new driver for the beeper controlled via GPIO pin.
> > The driver does not depend on the architecture and is positioned as
> > a replacement for the specific drivers that are used for this function.
> >
> > Signed-off-by: Alexander Shiyan <[email protected]>
...
> > diff --git a/Documentation/devicetree/bindings/input/gpio-beeper.txt
> > b/Documentation/devicetree/bindings/input/gpio-beeper.txt
...
> > +Example:
> > +
> > +beeper: input@0 {
> > + compatible = "gpio-beeper";
> > + reg = <0>;
> > + gpios = <&gpio3 23 0>;
> > +};
>
> What are the reg / unit-address for?
Just an example from "simple-bus" container.
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