Re: [PATCH 1/3] dt-bindings: iio: chemical: Add binding for CCS811 VOC sensor

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On Mon, Apr 13, 2020 at 05:53:23PM +0100, Jonathan Cameron wrote:
> On Mon, 13 Apr 2020 00:06:56 +0530
> mani@xxxxxxxxxx wrote:
> 
> > From: Manivannan Sadhasivam <mani@xxxxxxxxxx>
> > 
> > This commit adds devicetree binding for AMS CCS811 VOC sensor.
> > 
> > Signed-off-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
> Great to see this driver getting some more attention.
> 
> A few things inline
> 
> Thanks,
> 
> Jonathan
> 
> > ---
> >  .../bindings/iio/chemical/ams,ccs811.yaml     | 50 +++++++++++++++++++
> >  1 file changed, 50 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
> > new file mode 100644
> > index 000000000000..564208af7b2b
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/chemical/ams,ccs811.yaml
> > @@ -0,0 +1,50 @@
> > +# SPDX-License-Identifier: GPL-2.0
> 
> Preferred that all new binding docs are dual licensed with BSD as well
> to allow there use by things other than the kernel.
> 

Okay will do.

> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/chemical/ams,ccs811.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: AMS CCS811 VOC Sensor
> > +
> > +maintainers:
> > +  - Narcisa Vasile <narcisaanamaria12@xxxxxxxxx>
> > +
> > +description: |
> > +  Ultra-Low Power Digital Gas Sensor for Monitoring Indoor Air Quality.
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - ams,ccs811
> > +  reg:
> > +    maxItems: 1
> > +
> > +  reset-gpios:
> > +    description: GPIO connected to the nRESET line. This is an active low
> > +                 input to CCS811.
> > +    maxItems: 1
> > +
> > +  wakeup-gpios:
> > +    description: GPIO connected to the nWAKE line. This is an active low
> > +                 input to CCS811.
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +examples:
> > +  - |
> > +    i2c {
> > +      #address-cells = <1>;
> > +      #size-cells = <0>;
> > +
> > +      ccs811@5b {
> Hmm. Not sure we have a generic name in the dt spec for voc sensor.
> Even so we should try for something appropriate.
> 
> Could go with voc@5b?
> 

Sounds good to me.

Thanks,
Mani

> > +        compatible = "ams,ccs811";
> > +        reg = <0x5b>;
> > +        reset-gpios = <&gpioa 11 GPIO_ACTIVE_LOW>;
> > +        wakeup-gpios = <&gpioa 12 GPIO_ACTIVE_LOW>;
> > +      };
> > +    };
> > +
> > +...
> 



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