linux-kernel - Re: [PATCH] ASoC: dt-bindings: imx-audio-spdif: convert to YAML

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Date: Mon, 8 Apr 2024 07:48:30 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Shengjiu Wang <shengjiu.wang@....com>, lgirdwood@...il.com,
 broonie@...nel.org, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, shengjiu.wang@...il.com, linux-sound@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
 festevam@...il.com, imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ASoC: dt-bindings: imx-audio-spdif: convert to YAML

On 08/04/2024 06:55, Shengjiu Wang wrote:
> Convert the imx-audio-spdif binding to YAML.
> 
> When testing dtbs_check, found below compatible strings
> are not listed in document:
> 
> fsl,imx-sabreauto-spdif
> fsl,imx6sx-sdb-spdif
> 
> So add them in yaml file to pass the test.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> ---
>  .../bindings/sound/imx-audio-spdif.txt        | 36 -----------
>  .../bindings/sound/imx-audio-spdif.yaml       | 62 +++++++++++++++++++

Filename like compatible.

>  2 files changed, 62 insertions(+), 36 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/imx-audio-spdif.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-spdif.yaml
> 


..

> +$id: http://devicetree.org/schemas/sound/imx-audio-spdif.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX audio complex with S/PDIF transceiver
> +
> +maintainers:
> +  - Shengjiu Wang <shengjiu.wang@....com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - fsl,imx-audio-spdif
> +          - enum:
> +              - fsl,imx-sabreauto-spdif
> +              - fsl,imx6sx-sdb-spdif
> +      - items:

No need for items here.

> +          - enum:
> +              - fsl,imx-audio-spdif
> +
> +  model:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: User specified audio sound card name
> +
> +  spdif-controller:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of the i.MX S/PDIF controller
> +
> +  spdif-out:
> +    type: boolean
> +    description: |

Do not need '|' unless you need to preserve formatting.

> +      If present, the transmitting function of S/PDIF will be enabled,
> +      indicating there's a physical S/PDIF out connector or jack on the
> +      board or it's connecting to some other IP block, such as an HDMI
> +      encoder or display-controller.
> +
> +  spdif-in:
> +    type: boolean
> +    description: |

Do not need '|' unless you need to preserve formatting.

> +      If present, the receiving function of S/PDIF will be enabled,
> +      indicating there is a physical S/PDIF in connector/jack on the board.
> +
> +required:
> +  - compatible
> +  - model
> +  - spdif-controller
> +

spdif-out and/or spdif-in are required. You either miss oneOf: required:
or anyOf:

https://elixir.bootlin.com/linux/v6.8-rc4/source/Documentation/devicetree/bindings/connector/usb-connector.yaml#L305

https://elixir.bootlin.com/linux/v5.17-rc2/source/Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml#L91

Judging by example, the first one.


> +additionalProperties: false
> +
> +examples:
> +  - |
> +    sound-spdif {

spdif {

> +        compatible = "fsl,imx-audio-spdif";
> +        model = "imx-spdif";
> +        spdif-controller = <&spdif>;
> +        spdif-out;
> +        spdif-in;
> +    };

Best regards,
Krzysztof