Re: [PATCH 6/9] ASoC: dt-bindings: meson: convert axg fifo to schema

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On 02/02/2023 19:36, Jerome Brunet wrote:
> Convert the DT binding documentation for the Amlogic axg audio FIFOs to
> schema.
> 
> Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> ---
>  .../bindings/sound/amlogic,axg-fifo.txt       |  34 -----
>  .../bindings/sound/amlogic,axg-fifo.yaml      | 116 ++++++++++++++++++
>  2 files changed, 116 insertions(+), 34 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
> deleted file mode 100644
> index fa4545ed81ca..000000000000
> --- a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -* Amlogic Audio FIFO controllers
> -
> -Required properties:
> -- compatible: 'amlogic,axg-toddr' or
> -	      'amlogic,axg-toddr' or
> -	      'amlogic,g12a-frddr' or
> -	      'amlogic,g12a-toddr' or
> -	      'amlogic,sm1-frddr' or
> -	      'amlogic,sm1-toddr'
> -- reg: physical base address of the controller and length of memory
> -       mapped region.
> -- interrupts: interrupt specifier for the fifo.
> -- clocks: phandle to the fifo peripheral clock provided by the audio
> -	  clock controller.
> -- resets: list of reset phandle, one for each entry reset-names.
> -- reset-names: should contain the following:
> -  * "arb" : memory ARB line (required)
> -  * "rst" : dedicated device reset line (optional)
> -- #sound-dai-cells: must be 0.
> -- amlogic,fifo-depth: The size of the controller's fifo in bytes. This
> -  		      is useful for determining certain configuration such
> -		      as the flush threshold of the fifo
> -
> -Example of FRDDR A on the A113 SoC:
> -
> -frddr_a: audio-controller@1c0 {
> -	compatible = "amlogic,axg-frddr";
> -	reg = <0x0 0x1c0 0x0 0x1c>;
> -	#sound-dai-cells = <0>;
> -	interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
> -	clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
> -	resets = <&arb AXG_ARB_FRDDR_A>;
> -	fifo-depth = <512>;
> -};
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
> new file mode 100644
> index 000000000000..f6222ad08880
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.yaml
> @@ -0,0 +1,116 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/amlogic,axg-fifo.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic AXG Audio FIFO controllers
> +
> +maintainers:
> +  - Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  $nodename:
> +    pattern: "^audio-controller@.*"
> +
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - amlogic,axg-toddr
> +              - amlogic,axg-frddr
> +      - items:
> +          - enum:
> +              - amlogic,g12a-toddr
> +              - amlogic,sm1-toddr
> +          - const:
> +              amlogic,axg-toddr
> +      - items:
> +          - enum:
> +              - amlogic,g12a-frddr
> +              - amlogic,sm1-frddr
> +          - const:
> +              amlogic,axg-frddr
> +

All usual comments apply.

> +  reg:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  clocks:
> +    items:
> +      - description: Peripheral clock
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  resets:
> +    items:
> +      - description: Memory ARB line
> +      - description: Dedicated device reset line

This won't work without minItems and you should see errors on your DTS
or in dt_binding_check

> +
> +  reset-names: true

minItems
maxItems

> +
> +  amlogic,fifo-depth:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Size of the controller's fifo in bytes
> +
> +required:

Best regards,
Krzysztof




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