linux-kernel - Re: [PATCH] dt-bindings: iio: adc: convert sd modulator to json-schema

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Date:   Thu, 5 Dec 2019 16:27:25 -0600
From:   Rob Herring <robh@...nel.org>
To:     Olivier Moysan <olivier.moysan@...com>
Cc:     jic23@...nel.org, mark.rutland@....com, mcoquelin.stm32@...il.com,
        lars@...afoo.de, devicetree@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        pmeerw@...erw.net, knaack.h@....de, fabrice.gasnier@...com,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] dt-bindings: iio: adc: convert sd modulator to
 json-schema

On Wed, Nov 27, 2019 at 06:16:42PM +0100, Olivier Moysan wrote:
> Convert the sigma delta modulator bindings
> to DT schema format using json-schema.
> 
> Signed-off-by: Olivier Moysan <olivier.moysan@...com>
> ---
>  .../iio/adc/sigma-delta-modulator.txt         | 13 -------
>  .../iio/adc/sigma-delta-modulator.yaml        | 35 +++++++++++++++++++
>  2 files changed, 35 insertions(+), 13 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
> deleted file mode 100644
> index 59b92cd32552..000000000000
> --- a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -Device-Tree bindings for sigma delta modulator
> -
> -Required properties:
> -- compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
> -	as a generic SD modulator if modulator not specified in compatible list.
> -- #io-channel-cells = <0>: See the IIO bindings section "IIO consumers".
> -
> -Example node:
> -
> -	ads1202: adc {
> -		compatible = "sd-modulator";
> -		#io-channel-cells = <0>;
> -	};
> diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
> new file mode 100644
> index 000000000000..8967c6f06d9d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
> @@ -0,0 +1,35 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/sigma-delta-modulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Device-Tree bindings for sigma delta modulator
> +
> +maintainers:
> +  - Arnaud Pouliquen <arnaud.pouliquen@...com>
> +
> +properties:
> +  compatible:
> +    description: |
> +      "sd-modulator" can be used as a generic SD modulator,
> +      if the modulator is not specified in the compatible list.
> +    enum:
> +      - sd-modulator
> +      - ads1201
> +
> +  '#io-channel-cells':
> +    const: 0
> +
> +required:
> +  - compatible
> +  - '#io-channel-cells'

Add:

additionalProperties: false

> +
> +examples:
> +  - |
> +    ads1202: adc@0 {

No reg, so drop the unit-address.

> +      compatible = "sd-modulator";
> +      #io-channel-cells = <0>;
> +    };
> +
> +...
> -- 
> 2.17.1
>