linux-kernel - Re: [PATCH 5/9] ASoC: dt-bindings: meson: convert axg pdm to schema

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Message-ID: <512edf50-a74d-815d-1278-39fdeb1c2d35@linaro.org>
Date:   Fri, 3 Feb 2023 09:01:09 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org
Cc:     linux-amlogic@...ts.infradead.org,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/9] ASoC: dt-bindings: meson: convert axg pdm to schema

On 02/02/2023 19:36, Jerome Brunet wrote:
> Convert the DT binding documentation for the Amlogic axg PDM device to
> schema.
> 
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  .../bindings/sound/amlogic,axg-pdm.txt        | 29 -------
>  .../bindings/sound/amlogic,axg-pdm.yaml       | 86 +++++++++++++++++++
>  2 files changed, 86 insertions(+), 29 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
> deleted file mode 100644
> index 716878107a24..000000000000
> --- a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.txt
> +++ /dev/null
> @@ -1,29 +0,0 @@
> -* Amlogic Audio PDM input
> -
> -Required properties:
> -- compatible: 'amlogic,axg-pdm' or
> -	      'amlogic,g12a-pdm' or
> -	      'amlogic,sm1-pdm'
> -- reg: physical base address of the controller and length of memory
> -       mapped region.
> -- clocks: list of clock phandle, one for each entry clock-names.
> -- clock-names: should contain the following:
> -  * "pclk"   : peripheral clock.
> -  * "dclk"   : pdm digital clock
> -  * "sysclk" : dsp system clock
> -- #sound-dai-cells: must be 0.
> -
> -Optional property:
> -- resets: phandle to the dedicated reset line of the pdm input.
> -
> -Example of PDM on the A113 SoC:
> -
> -pdm: audio-controller@...32000 {
> -	compatible = "amlogic,axg-pdm";
> -	reg = <0x0 0xff632000 0x0 0x34>;
> -	#sound-dai-cells = <0>;
> -	clocks = <&clkc_audio AUD_CLKID_PDM>,
> -		 <&clkc_audio AUD_CLKID_PDM_DCLK>,
> -		 <&clkc_audio AUD_CLKID_PDM_SYSCLK>;
> -	clock-names = "pclk", "dclk", "sysclk";
> -};
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml
> new file mode 100644
> index 000000000000..d3da2f8ba7b1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-pdm.yaml
> @@ -0,0 +1,86 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/amlogic,axg-pdm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic Audio AXG PDM input
> +
> +maintainers:
> +  - Jerome Brunet <jbrunet@...libre.com>
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  $nodename:
> +    pattern: "^audio-controller@.*"

Drop

> +
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - amlogic,g12a-pdm
> +              - amlogic,sm1-pdm
> +          - const:
> +              amlogic,axg-pdm

One line.

Please use the same coding style as we have in other bindings or
example-schema.

> +      - items:

Drop items

> +          - const:
> +              amlogic,axg-pdm

Keep in one line.

> +
> +  reg:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  clocks:
> +    items:
> +      - description: Peripheral clock
> +      - description: PDM digital clock
> +      - description: DSP system clock
> +
> +  clock-names:
> +    items:
> +      - const: pclk
> +      - const: dclk
> +      - const: sysclk
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#sound-dai-cells"
> +  - clocks
> +  - clock-names
> +
> +if:

Keep in allOf here (need to move ref from top to here)

> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - amlogic,g12a-pdm
> +          - amlogic,sm1-pdm
> +then:
> +  properties:
> +    resets:
> +      items:
> +        - description: Dedicated device reset line

Define properties in top level properties.

> +
> +  required:
> +    - resets
> +
> +unevaluatedProperties: false


Best regards,
Krzysztof