linux-kernel - Re: [PATCH 2/3] dt-bindings: Document ltrf216a light sensor bindings

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Date:   Fri, 25 Mar 2022 13:23:34 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Shreeya Patel <shreeya.patel@...labora.com>, jic23@...nel.org,
        lars@...afoo.de, robh+dt@...nel.org, Zhigang.Shi@...eon.com,
        krisman@...labora.com
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        alvaro.soliverez@...labora.com
Subject: Re: [PATCH 2/3] dt-bindings: Document ltrf216a light sensor bindings

On 25/03/2022 11:30, Shreeya Patel wrote:
> Add devicetree bindings for ltrf216a ambient light sensor

Full stop.

> 
> Signed-off-by: Shreeya Patel <shreeya.patel@...labora.com>
> ---
>  .../bindings/iio/light/liteon,ltrf216a.yaml   | 42 +++++++++++++++++++
>  1 file changed, 42 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml b/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
> new file mode 100644
> index 000000000000..275d86a0353a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
> @@ -0,0 +1,42 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/light/liteon,ltrf216a.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LTRF216A Ambient Light Sensor
> +
> +maintainers:
> +  - Zhigang Shi <Zhigang.Shi@...eon.com>
> +
> +description: |
> +  Ambient sensing with an i2c interface.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - liteon,ltrf216a
> +      - ltr,ltrf216a

Make it oneOf and then you can add "deprecated" to "ltr", because I
assume it is deprecated since it is using deprecated vendor prefix and
you keep it only because there is a real world device with it.

> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        light-sensor@53 {
> +                compatible = "ltr,ltrf216a";

Don't use deprecated compatible/vendor prefix.

> +                reg = <0x53>;
> +        };
> +    };
> +...


Best regards,
Krzysztof