linux-kernel - Re: [PATCH v4 3/4] ASoC: dt-bindings: xlnx,spdif: Convert to json-schema

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Message-ID: <20250224213328.GB4107125-robh@kernel.org>
Date: Mon, 24 Feb 2025 15:33:28 -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 3/4] ASoC: dt-bindings: xlnx,spdif: Convert to
 json-schema

On Mon, Feb 24, 2025 at 06:25:47PM +0000, Vincenzo Frascino wrote:
> Convert the Xilinx SPDIF 2.0 device tree binding documentation to
> json-schema.
> 
> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
> ---
>  .../devicetree/bindings/sound/xlnx,spdif.txt  | 28 ------
>  .../devicetree/bindings/sound/xlnx,spdif.yaml | 85 +++++++++++++++++++
>  2 files changed, 85 insertions(+), 28 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/sound/xlnx,spdif.txt
>  create mode 100644 Documentation/devicetree/bindings/sound/xlnx,spdif.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/xlnx,spdif.txt b/Documentation/devicetree/bindings/sound/xlnx,spdif.txt
> deleted file mode 100644
> index 15c2d64d247c..000000000000
> --- a/Documentation/devicetree/bindings/sound/xlnx,spdif.txt
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -Device-Tree bindings for Xilinx SPDIF IP
> -
> -The IP supports playback and capture of SPDIF audio
> -
> -Required properties:
> - - compatible: "xlnx,spdif-2.0"
> - - clock-names: List of input clocks.
> -   Required elements: "s_axi_aclk", "aud_clk_i"
> - - clocks: Input clock specifier. Refer to common clock bindings.
> - - reg: Base address and address length of the IP core instance.
> - - interrupts-parent: Phandle for interrupt controller.
> - - interrupts: List of Interrupt numbers.
> - - xlnx,spdif-mode: 0 :- receiver mode
> -		    1 :- transmitter mode
> - - xlnx,aud_clk_i: input audio clock value.
> -
> -Example:
> -	spdif_0: spdif@...10000 {
> -		clock-names = "aud_clk_i", "s_axi_aclk";
> -		clocks = <&misc_clk_0>, <&clk 71>;
> -		compatible = "xlnx,spdif-2.0";
> -		interrupt-names = "spdif_interrupt";
> -		interrupt-parent = <&gic>;
> -		interrupts = <0 91 4>;
> -		reg = <0x0 0x80010000 0x0 0x10000>;
> -		xlnx,spdif-mode = <1>;
> -		xlnx,aud_clk_i = <49152913>;
> -	};
> diff --git a/Documentation/devicetree/bindings/sound/xlnx,spdif.yaml b/Documentation/devicetree/bindings/sound/xlnx,spdif.yaml
> new file mode 100644
> index 000000000000..ad0b40a12c2b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/xlnx,spdif.yaml
> @@ -0,0 +1,85 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/xlnx,spdif.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx SPDIF IP
> +
> +description:
> +  The IP supports playback and capture of SPDIF audio.
> +
> +maintainers:
> +  - Vincenzo Frascino <vincenzo.frascino@....com>
> +
> +allOf:
> +  - $ref: dai-common.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - xlnx,spdif-2.0
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupt-names:
> +    items:
> +      - const: spdif_interrupt
> +
> +  interrupts:
> +    maxItems: 1
> +    description: |
> +      List of Interrupt numbers.

Drop description.

> +
> +  clock-names:
> +    items:
> +      - const: aud_clk_i
> +      - const: s_axi_aclk
> +    description: |
> +      List of input clocks.

Drop

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

Drop

> +
> +  xlnx,spdif-mode:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum:
> +      - 0
> +      - 1
> +    description: |
> +      0 - receiver
> +      1 - transmitter
> +
> +  xlnx,aud_clk_i:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: |

Drop '|'

> +      Input audio clock value.

Is value the frequency? If you know more detail, please add it.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupt-names
> +  - interrupts
> +  - clock-names
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    spdif_0: spdif@...10000 {

Drop unused labels.

> +      clock-names = "aud_clk_i", "s_axi_aclk";
> +      clocks = <&misc_clk_0>, <&clk 71>;
> +      compatible = "xlnx,spdif-2.0";

'compatible' goes first. Then reg. See 
Documentation/devicetree/bindings/dts-coding-style.rst for more details.

> +      interrupt-names = "spdif_interrupt";
> +      interrupt-parent = <&gic>;
> +      interrupts = <0 91 4>;
> +      reg = <0x80010000 0x10000>;
> +      xlnx,spdif-mode = <1>;
> +      xlnx,aud_clk_i = <49152913>;
> +    };
> +
> +...
> -- 
> 2.43.0
>