linux-kernel - Re: [PATCH 1/2] dt-bindings: iio: temperature: Add AMS AS6200

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Message-ID: <ZWfZtGp9PvuPIB03@abdel>
Date:   Wed, 29 Nov 2023 19:39:16 -0500
From:   Abdel Alkuor <alkuor@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: iio: temperature: Add AMS AS6200

On Sun, Nov 26, 2023 at 05:30:02PM +0000, Jonathan Cameron wrote:
> On Sat, 11 Nov 2023 17:05:01 -0500
> Abdel Alkuor <alkuor@...il.com> wrote:
> 
> > as6200 is high accuracy temperature sensor of -/+ 0.4C degree
> > with a range between -40C to 125C degrees
> > 
> Hi Abdel,
> 
> Welcome to IIO.  Just one comment on specifying power supplies below.
>
Hi Jonathan,

Thank you for the warm welcome :D

> Jonathan
> 
> 
> > Signed-off-by: Abdel Alkuor <alkuor@...il.com>
> > ---
> >  .../bindings/iio/temperature/ams,as6200.yaml  | 45 +++++++++++++++++++
> >  1 file changed, 45 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/temperature/ams,as6200.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/temperature/ams,as6200.yaml b/Documentation/devicetree/bindings/iio/temperature/ams,as6200.yaml
> > new file mode 100644
> > index 000000000000..97a73b92a789
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/temperature/ams,as6200.yaml
> > @@ -0,0 +1,45 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/temperature/ams,as6200.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: AMS AS6200 Temperature Sensor
> > +
> > +maintainers:
> > +  - Abdel Alkuor <alkuor@...il.com>
> > +
> > +description: |
> > +  https://ams.com/documents/20143/36005/AS6200_DS000449_4-00.pdf
> > +
> > +properties:
> > +  compatible:
> > +    const: ams,as6200
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> 
> I'd like to see
> vdd-supply: true
> and it added to teh required list.
> 
> The device needs power. Note there is
> a devm_regulator_get_enable() function that can then be used in the driver to turn
> on any regulator specified in DT which will provide a stub regulator if there isn't
> one (not unusual if a fixed power supply is used that is always on).
>
Sounds good. I'll add it.
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    i2c {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        temperature-sensor@48 {
> > +            compatible = "ams,as6200";
> > +            reg = <0x48>;
> > +            interrupt-parent = <&gpio1>;
> > +            interrupts = <17 IRQ_TYPE_EDGE_BOTH>;
> > +        };
> > +    };
> > +...
>