Re: [PATCH v2 2/3] dt-bindings: trivial-devices: add aosong,ags02ma

From: Conor Dooley
Date: Wed Nov 15 2023 - 09:39:02 EST


On Wed, Nov 15, 2023 at 06:28:07PM +0530, Anshul Dalal wrote:
> Add bindings for Aosong AGS02MA TVOC sensor.
>
> The sensor communicates over i2c with the default address 0x1a.
> TVOC values can be read in the units of ppb and ug/m^3 at register 0x00.
>
> Datasheet:
> https://asairsensors.com/wp-content/uploads/2021/09/AGS02MA.pdf
> Product-Page:
> http://www.aosong.com/m/en/products-33.html
>
> Signed-off-by: Anshul Dalal <anshulusr@xxxxxxxxx>
> ---
>
> Changes for v2:
> - Removed device from trivial-devices

Your $subject still says "trivial-devices" though, so please fix that in
your next submission.

> - Added standalone binding with vdd-supply property
> ---
> .../bindings/iio/chemical/aosong,ags02ma.yaml | 48 +++++++++++++++++++
> 1 file changed, 48 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/chemical/aosong,ags02ma.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/chemical/aosong,ags02ma.yaml b/Documentation/devicetree/bindings/iio/chemical/aosong,ags02ma.yaml
> new file mode 100644
> index 000000000000..4a0278c6318c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/chemical/aosong,ags02ma.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/chemical/aosong,ags02ma.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Aosong AGS02MA VOC Sensor
> +
> +description: |
> + AGS02MA is an TVOC (Total Volatile Organic Compounds) i2c sensor with default
> + address of 0x1a.
> +
> + Datasheet:
> + https://asairsensors.com/wp-content/uploads/2021/09/AGS02MA.pdf
> +
> +maintainers:
> + - Anshul Dalal <anshulusr@xxxxxxxxx>
> +
> +properties:
> + compatible:
> + enum:
> + - aosong,ags02ma
> + - asair,ags02ma

Why do you have two compatibles for the same device? Please document and
use only one of these. The aoson website says:
"Guangzhou ASAIR Electronic Co., Ltd"
so I suspect "asair" is a more apt vendor prefix.


Thanks,
Conor.

> +
> + reg:
> + maxItems: 1
> +
> + vdd-supply: true
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + light-sensor@1a {
> + compatible = "aosong,ags02ma";
> + reg = <0x1a>;
> + vdd-supply = <&vdd_regulator>;
> + };
> + };
> --
> 2.42.0
>

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