Re: [PATCH v6 3/6] dt-bindings: iio: dac: Generalize DAC common properties

[Rob Herring <robh@kernel.org>]

On Thu, Jul 11, 2024 at 07:42:18PM +0800, Kim Seer Paller wrote:
> Introduce a generalized DAC binding that can be used by DACs that have
> similar properties adding output-range-microamp and output-range-microvolt.
> 
> Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
> ---
>  .../devicetree/bindings/iio/dac/dac.yaml      | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/dac/dac.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/dac/dac.yaml b/Documentation/devicetree/bindings/iio/dac/dac.yaml
> new file mode 100644
> index 000000000000..a9787bbcd22b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/dac/dac.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/dac/dac.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: IIO Common Properties for DAC Channels
> +
> +maintainers:
> +  - Jonathan Cameron <jic23@kernel.org>
> +
> +description:
> +  A few properties are defined in a common way for DAC channels.
> +
> +properties:
> +  $nodename:
> +    pattern: "^channel(@[0-9a-f]+)?$"
> +    description:
> +      A channel index should match reg.

Drop $nodename. That causes this to apply to every matching node and 
hence the failures.

It is also redundant because you define the node name where you 
reference dac.yaml.

Rob