linux-kernel - Re: [PATCH v4 2/4] ASoC: dt-bindings: xlnx,audio-formatter: Convert to json-schema

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Message-ID: <20250224212830.GA4107125-robh@kernel.org>
Date: Mon, 24 Feb 2025 15:28:30 -0600
From: Rob Herring <robh@...nel.org>
To: Vincenzo Frascino <vincenzo.frascino@....com>
Cc: linux-sound@...r.kernel.org,
	Maruthi Srinivas Bayyavarapu <maruthi.srinivas.bayyavarapu@...inx.com>,
	Sudeep Holla <sudeep.holla@....com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/4] ASoC: dt-bindings: xlnx,audio-formatter: Convert
 to json-schema

On Mon, Feb 24, 2025 at 06:25:46PM +0000, Vincenzo Frascino wrote:
> Convert the Xilinx Audio Formatter 1.0  device tree binding documentation
> to json-schema.
> 
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
> ---
>  .../bindings/sound/xlnx,audio-formatter.txt   | 29 -------
>  .../bindings/sound/xlnx,audio-formatter.yaml  | 77 +++++++++++++++++++
>  2 files changed, 77 insertions(+), 29 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/xlnx,audio-formatter.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt b/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt
> deleted file mode 100644
> index cbc93c8f4963..000000000000
> --- a/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt
> +++ /dev/null
> @@ -1,29 +0,0 @@
> -Device-Tree bindings for Xilinx PL audio formatter
> -
> -The IP core supports DMA, data formatting(AES<->PCM conversion)
> -of audio samples.
> -
> -Required properties:
> - - compatible: "xlnx,audio-formatter-1.0"
> - - interrupt-names: Names specified to list of interrupts in same
> -		    order mentioned under "interrupts".
> -		    List of supported interrupt names are:
> -		    "irq_mm2s" : interrupt from MM2S block
> -		    "irq_s2mm" : interrupt from S2MM block
> - - interrupts-parent: Phandle for interrupt controller.
> - - interrupts: List of Interrupt numbers.
> - - reg: Base address and size of the IP core instance.
> - - clock-names: List of input clocks.
> -   Required elements: "s_axi_lite_aclk", "aud_mclk"
> - - clocks: Input clock specifier. Refer to common clock bindings.
> -
> -Example:
> -	audio_ss_0_audio_formatter_0: audio_formatter@...10000 {
> -		compatible = "xlnx,audio-formatter-1.0";
> -		interrupt-names = "irq_mm2s", "irq_s2mm";
> -		interrupt-parent = <&gic>;
> -		interrupts = <0 104 4>, <0 105 4>;
> -		reg = <0x0 0x80010000 0x0 0x1000>;
> -		clock-names = "s_axi_lite_aclk", "aud_mclk";
> -		clocks = <&clk 71>, <&clk_wiz_1 0>;
> -	};
> diff --git a/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.yaml b/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.yaml
> new file mode 100644
> index 000000000000..a83af71401aa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/xlnx,audio-formatter.yaml
> @@ -0,0 +1,77 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/xlnx,audio-formatter.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx PL audio formatter
> +
> +description: |

Don't need '|'

> +  The IP core supports DMA, data formatting(AES<->PCM conversion)
> +  of audio samples.
> +
> +maintainers:
> +  - Vincenzo Frascino <vincenzo.frascino@....com>
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - xlnx,audio-formatter-1.0
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupt-names:
> +    minItems: 1
> +    items:
> +      - const: irq_mm2s
> +      - const: irq_s2mm
> +    description: |
> +      Names specified to list of interrupts in same order mentioned under
> +      "interrupts". List of supported interrupt names are:
> +      - "irq_mm2s" : interrupt from MM2S block
> +      - "irq_s2mm" : interrupt from S2MM block

Don't repeat constraints in prose and don't describe how common 
properties work. IOW, drop the description completely.

> +
> +  interrupts:
> +    minItems: 1
> +    maxItems: 2

If you want to describe each interrupt, then here put:

minItems: 1
items:
  - description: describe 1st interrupt...
  - description: ...

> +
> +  clock-names:
> +    minItems: 1
> +    items:
> +      - const: s_axi_lite_aclk
> +      - const: aud_mclk
> +    description: |
> +      List of input clocks.

Drop

> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 2
> +    description: |
> +      Input clock specifier. Refer to common clock bindings.

Drop

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupt-names
> +  - interrupts
> +  - clock-names
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    audio_ss_0_audio_formatter_0: audio_formatter@...10000 {
> +      compatible = "xlnx,audio-formatter-1.0";
> +      interrupt-names = "irq_mm2s", "irq_s2mm";
> +      interrupt-parent = <&gic>;
> +      interrupts = <0 104 4>, <0 105 4>;
> +      reg = <0x80010000 0x1000>;
> +      clock-names = "s_axi_lite_aclk", "aud_mclk";
> +      clocks = <&clk 71>, <&clk_wiz_1 0>;
> +    };
> +...
> -- 
> 2.43.0
>