Re: [PATCH v6 1/3] dt-bindings: hwmon: fan: Add fan binding to schema

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On Sun, Nov 20, 2022 at 07:13:31AM -0800, Guenter Roeck wrote:
> On Wed, Nov 16, 2022 at 10:36:13PM +0100, Naresh Solanki wrote:
> > Add common fan properties bindings to a schema.
> > 
> > Bindings for fan controllers can reference the common schema for the
> > fan
> > 
> > child nodes:
> > 
> >   patternProperties:
> >     "^fan@[0-2]":
> >       type: object
> >       $ref: fan-common.yaml#
> > 
> > Signed-off-by: Naresh Solanki <Naresh.Solanki@xxxxxxxxxxxxx>
> > ---
> >  .../devicetree/bindings/hwmon/fan-common.yaml | 42 +++++++++++++++++++
> >  1 file changed, 42 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/hwmon/fan-common.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/hwmon/fan-common.yaml b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
> > new file mode 100644
> > index 000000000000..1954882eed77
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/hwmon/fan-common.yaml
> > @@ -0,0 +1,42 @@
> > +# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/hwmon/fan-common.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Common fan properties
> > +
> > +maintainers:
> > +  - Naresh Solanki <naresh.solanki@xxxxxxxxxxxxx>
> > +
> > +properties:
> > +  max-rpm:
> > +    description:
> > +      Max RPM supported by fan.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +
> > +  pulses-per-revolution:
> > +    description:
> > +      The number of pulse from fan sensor per revolution.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +
> > +  target-rpm:
> > +    description:
> > +      Target RPM the fan should be configured during driver probe.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +
> > +  pwms:
> > +    description:
> > +      PWM provider.
> > +
> > +  label:
> > +    description:
> > +      Optional fan label
> > +
> > +  fan-supply:
> > +    description:
> > +      Power supply for fan.
> > +
> 
> I still think that at least min-rpm should be added. It is just as common
> as max-rpm.

Or a table if the response is not linear like LEDs/backlights? Though if 
there's a tach, that wouldn't be necessary.

Rob



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