Re: [PATCH 9/9] ASoC: dt-bindings: meson: convert axg sound card control to schema

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On 02/02/2023 19:36, Jerome Brunet wrote:
> Convert the DT binding documentation for the Amlogic axg sound card to
> schema.
> 
> Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> ---
>  .../bindings/sound/amlogic,axg-sound-card.txt | 124 ------------
>  .../sound/amlogic,axg-sound-card.yaml         | 182 ++++++++++++++++++
>  2 files changed, 182 insertions(+), 124 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.txt
> deleted file mode 100644
> index 80b411296480..000000000000
> --- a/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.txt
> +++ /dev/null
> @@ -1,124 +0,0 @@
> -Amlogic AXG sound card:
> -
> -Required properties:
> -
> -- compatible: "amlogic,axg-sound-card"
> -- model : User specified audio sound card name, one string
> -
> -Optional properties:
> -
> -- audio-aux-devs : List of phandles pointing to auxiliary devices
> -- audio-widgets : Please refer to widgets.txt.
> -- audio-routing : A list of the connections between audio components.
> -
> -Subnodes:
> -
> -- dai-link: Container for dai-link level properties and the CODEC
> -	    sub-nodes. There should be at least one (and probably more)
> -	    subnode of this type.
> -
> -Required dai-link properties:
> -
> -- sound-dai: phandle and port of the CPU DAI.
> -
> -Required TDM Backend dai-link properties:
> -- dai-format : CPU/CODEC common audio format
> -
> -Optional TDM Backend dai-link properties:
> -- dai-tdm-slot-rx-mask-{0,1,2,3}: Receive direction slot masks
> -- dai-tdm-slot-tx-mask-{0,1,2,3}: Transmit direction slot masks
> -				  When omitted, mask is assumed to have to no
> -				  slots. A valid must have at one slot, so at
> -				  least one these mask should be provided with
> -				  an enabled slot.
> -- dai-tdm-slot-num : Please refer to tdm-slot.txt.
> -		     If omitted, slot number is set to accommodate the largest
> -		     mask provided.
> -- dai-tdm-slot-width : Please refer to tdm-slot.txt. default to 32 if omitted.
> -- mclk-fs : Multiplication factor between stream rate and mclk
> -
> -Backend dai-link subnodes:
> -
> -- codec: dai-link representing backend links should have at least one subnode.
> -	 One subnode for each codec of the dai-link.
> -	 dai-link representing frontend links have no codec, therefore have no
> -	 subnodes
> -
> -Required codec subnodes properties:
> -
> -- sound-dai: phandle and port of the CODEC DAI.
> -
> -Optional codec subnodes properties:
> -
> -- dai-tdm-slot-tx-mask : Please refer to tdm-slot.txt.
> -- dai-tdm-slot-rx-mask : Please refer to tdm-slot.txt.
> -
> -Example:
> -
> -sound {
> -	compatible = "amlogic,axg-sound-card";
> -	model = "AXG-S420";
> -	audio-aux-devs = <&tdmin_a>, <&tdmout_c>;
> -	audio-widgets = "Line", "Lineout",
> -			"Line", "Linein",
> -			"Speaker", "Speaker1 Left",
> -			"Speaker", "Speaker1 Right";
> -			"Speaker", "Speaker2 Left",
> -			"Speaker", "Speaker2 Right";
> -	audio-routing = "TDMOUT_C IN 0", "FRDDR_A OUT 2",
> -			"SPDIFOUT IN 0", "FRDDR_A OUT 3",
> -			"TDM_C Playback", "TDMOUT_C OUT",
> -			"TDMIN_A IN 2", "TDM_C Capture",
> -			"TDMIN_A IN 5", "TDM_C Loopback",
> -			"TODDR_A IN 0", "TDMIN_A OUT",
> -			"Lineout", "Lineout AOUTL",
> -			"Lineout", "Lineout AOUTR",
> -			"Speaker1 Left", "SPK1 OUT_A",
> -			"Speaker2 Left", "SPK2 OUT_A",
> -			"Speaker1 Right", "SPK1 OUT_B",
> -			"Speaker2 Right", "SPK2 OUT_B",
> -			"Linein AINL", "Linein",
> -			"Linein AINR", "Linein";
> -
> -	dai-link@0 {
> -		sound-dai = <&frddr_a>;
> -	};
> -
> -	dai-link@1 {
> -		sound-dai = <&toddr_a>;
> -	};
> -
> -	dai-link@2 {
> -		sound-dai = <&tdmif_c>;
> -		dai-format = "i2s";
> -		dai-tdm-slot-tx-mask-2 = <1 1>;
> -		dai-tdm-slot-tx-mask-3 = <1 1>;
> -		dai-tdm-slot-rx-mask-1 = <1 1>;
> -		mclk-fs = <256>;
> -
> -		codec@0 {
> -			sound-dai = <&lineout>;
> -		};
> -
> -		codec@1 {
> -			sound-dai = <&speaker_amp1>;
> -		};
> -
> -		codec@2 {
> -			sound-dai = <&speaker_amp2>;
> -		};
> -
> -		codec@3 {
> -			sound-dai = <&linein>;
> -		};
> -
> -	};
> -
> -	dai-link@3 {
> -		sound-dai = <&spdifout>;
> -
> -		codec {
> -			sound-dai = <&spdif_dit>;
> -		};
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.yaml b/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.yaml
> new file mode 100644
> index 000000000000..185cd9fbeda1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-sound-card.yaml
> @@ -0,0 +1,182 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/amlogic,axg-sound-card.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic AXG sound card
> +
> +maintainers:
> +  - Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    items:

Drop

> +      - const: amlogic,axg-sound-card

And here you can keep such code in one line?

> +
> +  audio-aux-devs:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: list of auxiliary devices

min/maxItems

> +
> +  audio-routing:
> +    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
> +    description: |-
> +      A list of the connections between audio components. Each entry is a
> +      pair of strings, the first being the connection's sink, the second
> +      being the connection's source.
> +
> +  audio-widgets:
> +    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
> +    description: |-
> +      A list off component DAPM widget. Each entry is a pair of strings,
> +      the first being the widget type, the second being the widget name
> +
> +  model:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: User specified audio sound card name
> +
> +patternProperties:
> +  "^dai-link-[0-9]+$":
> +    type: object
> +    additionalProperties: false
> +    description: |-

Drop |-

> +      dai-link child nodes:

Drop, this is not a property list.

> +        Container for dai-link level properties and the CODEC sub-nodes.
> +        There should be at least one (and probably more) subnode of this type
> +
> +    properties:
> +      dai-format:
> +        $ref: /schemas/types.yaml#/definitions/string
> +        enum: [ i2s, left-j, dsp_a ]
> +
> +      dai-tdm-slot-num:
> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        description: |
> +          Number of slots in use. If omitted, slot number is set to
> +          accommodate the largest mask provided.
> +        maximum: 32
> +
> +      dai-tdm-slot-width:
> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        description: Width in bits for each slot
> +        enum: [ 8, 16, 20, 24, 32 ]
> +        default: 32
> +
> +      mclk-fs:
> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        description: |-

Drop |-
Drop it everywhere where not needed

> +          Multiplication factor between the frame rate and master clock
> +          rate
> +
> +      sound-dai:
> +        $ref: /schemas/types.yaml#/definitions/phandle-array

Old binding was saying it is just phandle

> +        description: phandle of the CPU DAI
> +
> +    patternProperties:
> +      "^dai-tdm-slot-(t|r)x-mask-[0-3]$":
> +        $ref: /schemas/types.yaml#/definitions/uint32-array
> +        description: |-

Drop |-

> +          Transmit and receive cpu slot masks of each TDM lane
> +          When omitted, mask is assumed to have to no slots. A valid
> +          interface must have at least one slot, so at least one these
> +          mask should be provided with an enabled slot.
> +
> +      "^codec(-[0-9]+)?$":
> +        type: object
> +        additionalProperties: false
> +        description: |-
> +          dai-link representing backend links should have at least one subnode.
> +          One subnode for each codec of the dai-link. dai-link representing
> +          frontend links have no codec, therefore have no subnodes
> +
> +        properties:
> +          sound-dai:
> +            $ref: /schemas/types.yaml#/definitions/phandle-array

phandle

> +            description: phandle of the codec DAI
> +
> +        patternProperties:
> +          "^dai-tdm-slot-(t|r)x-mask$":
> +            $ref: /schemas/types.yaml#/definitions/uint32-array
> +            description: Transmit and receive codec slot masks

Are you sure codec has dai-tdm-slot-....?

> +
> +        required:
> +          - sound-dai
> +
> +    required:
> +      - sound-dai
> +
> +required:
> +  - model
> +  - dai-link-0
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    sound {
> +        compatible = "amlogic,axg-sound-card";
> +        model = "AXG-S420";
> +        audio-aux-devs = <&tdmin_a>, <&tdmout_c>;
> +        audio-widgets = "Line", "Lineout",
> +                        "Line", "Linein",
> +                        "Speaker", "Speaker1 Left",
> +                        "Speaker", "Speaker1 Right",
> +                        "Speaker", "Speaker2 Left",
> +                        "Speaker", "Speaker2 Right";
> +        audio-routing = "TDMOUT_C IN 0", "FRDDR_A OUT 2",
> +                        "SPDIFOUT IN 0", "FRDDR_A OUT 3",
> +                        "TDM_C Playback", "TDMOUT_C OUT",
> +                        "TDMIN_A IN 2", "TDM_C Capture",
> +                        "TDMIN_A IN 5", "TDM_C Loopback",
> +                        "TODDR_A IN 0", "TDMIN_A OUT",
> +                        "Lineout", "Lineout AOUTL",
> +                        "Lineout", "Lineout AOUTR",
> +                        "Speaker1 Left", "SPK1 OUT_A",
> +                        "Speaker2 Left", "SPK2 OUT_A",
> +                        "Speaker1 Right", "SPK1 OUT_B",
> +                        "Speaker2 Right", "SPK2 OUT_B",
> +                        "Linein AINL", "Linein",
> +                        "Linein AINR", "Linein";
> +
> +        dai-link-0 {
> +               sound-dai = <&frddr_a>;

Use 4 spaces for example indentation.

> +        };
> +
> +        dai-link-1 {
> +               sound-dai = <&toddr_a>;
> +        };

Best regards,
Krzysztof




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