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SubjectRe: [PATCH v2 4/4] dt-bindings: iio: scd30: add device binding file
On Sun, May 31, 2020 at 11:19:14AM +0100, Jonathan Cameron wrote:
> On Sat, 30 May 2020 23:36:30 +0200
> Tomasz Duszynski <tomasz.duszynski@octakon.com> wrote:
>
> > Add SCD30 sensor binding file.
> >
> > Signed-off-by: Tomasz Duszynski <tomasz.duszynski@octakon.com>
> > ---
> > .../iio/chemical/sensirion,scd30.yaml | 68 +++++++++++++++++++
> > MAINTAINERS | 1 +
> > 2 files changed, 69 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
> > new file mode 100644
> > index 000000000000..34cc3925d64d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
> > @@ -0,0 +1,68 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/chemical/sensirion,scd30.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sensirion SCD30 carbon dioxide sensor
> > +
> > +maintainers:
> > + - Tomasz Duszynski <tomasz.duszynski@octakon.com>
> > +
> > +description: |
> > + Air quality sensor capable of measuring co2 concentration, temperature
> > + and relative humidity.
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - sensirion,scd30
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + interrupts:
> > + maxItems: 1
> > +
> > + vdd-supply: true
> > +
> > + sensirion,sel-gpios:
> > + description: GPIO connected to the SEL line
> > + maxItems: 1
> > +
> > + sensirion,pwm-gpios:
> > + description: GPIO connected to the PWM line
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + # include <dt-bindings/interrupt-controller/irq.h>
> > + i2c {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + scd30@61 {
>
> Nodes should have generic names. Not sure we have an appropriate
> one in the spec, but as main focus of people using this will be
> c02 herpas
>
> c02@61?
>

There are already a few recommended node names ending with '-sensor' on the list
like air-pollution-sensor or temperature-sensor. I'd say co2-sensor would work
here.

> Rob may well have a better suggestion!
>
> > + compatible = "sensirion,scd30";
> > + reg = <0x61>;
> > + vdd-supply = <&vdd>;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > + };
> > + - |
> > + # include <dt-bindings/interrupt-controller/irq.h>
> > + serial {
> > + scd30 {
> > + compatible = "sensirion,scd30";
> > + vdd-supply = <&vdd>;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > + };
> > +
> > +...
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 5db4b446c8ba..0ab9cf39e051 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -15140,6 +15140,7 @@ F: include/uapi/linux/phantom.h
> > SENSIRION SCD30 CARBON DIOXIDE SENSOR DRIVER
> > M: Tomasz Duszynski <tomasz.duszynski@octakon.com>
> > S: Maintained
> > +F: Documentation/devicetree/bindings/iio/chemical/sensirion,scd30.yaml
> > F: drivers/iio/chemical/scd30.h
> > F: drivers/iio/chemical/scd30_core.c
> > F: drivers/iio/chemical/scd30_i2c.c
>

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