Re: [PATCH RFC v4 1/6] dt-bindings: iio: add Open Sensor Fusion device

[Kim Jinseob]

> Do you think it makes sense to permit a regulator here, so that the
> "host" OS can power on/off the board running the osf stack?

>From the OSF hardware side, yes, that makes sense.

The current prototype used for testing is powered independently, but an OSF
device may also be integrated as a host-powered UART peripheral. In that case
allowing the host to control the board supply through an optional regulator
would be useful.

Unless the IIO side prefers otherwise, I will add an optional supply property
to the binding and matching optional regulator handling in the driver in the
next revision.

Jinseob


2026년 6월 10일 (수) 오전 1:19, Conor Dooley <conor@xxxxxxxxxx>님이 작성:
>
> Jonathan/IIO folks,
>
> On Mon, Jun 08, 2026 at 08:43:38AM +0900, Jinseob Kim wrote:
>
> > diff --git a/Documentation/devicetree/bindings/iio/opensensorfusion,osf.yaml b/Documentation/devicetree/bindings/iio/opensensorfusion,osf.yaml
> > new file mode 100644
> > index 000000000..a4049715a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/opensensorfusion,osf.yaml
> > @@ -0,0 +1,43 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/opensensorfusion,osf.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Open Sensor Fusion Sensor Aggregation Hub
> > +
> > +maintainers:
> > +  - Jinseob Kim <kimjinseob88@xxxxxxxxx>
> > +
> > +description: |
> > +  Open Sensor Fusion is a sensor aggregation hub. The hub exposes an OSF
> > +  protocol data stream over its host interface and may report capabilities and
> > +  samples for multiple sensor classes. The Linux driver discovers the actual
> > +  sensor channels from OSF capability reports instead of describing those
> > +  sensors in Device Tree.
> > +
> > +  Open Sensor Fusion is not a generic industry standard. Public project
> > +  documentation is available at:
> > +
> > +    https://github.com/opensensorfusion
> > +
> > +allOf:
> > +  - $ref: /schemas/serial/serial-peripheral-props.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: opensensorfusion,osf
> > +
> > +required:
> > +  - compatible
>
> Do you think it makes sense to permit a regulator here, so that the
> "host" OS can power on/off the board running the osf stack?
>
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > +  - |
> > +    serial {
> > +        sensor {
> > +            compatible = "opensensorfusion,osf";
> > +        };
> > +    };
> > +...