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Date:   Mon, 17 Apr 2023 15:41:50 -0500
From:   Rob Herring <robh@kernel.org>
To:     =?utf-8?B?UGF3ZcWC?= Anikiel <pan@semihalf.com>
Cc:     alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, lgirdwood@gmail.com,
        broonie@kernel.org, perex@perex.cz, tiwai@suse.com,
        krzysztof.kozlowski+dt@linaro.org, dinguyen@kernel.org,
        lars@metafoo.de, nuno.sa@analog.com, upstream@semihalf.com
Subject: Re: [PATCH 3/9] dt-bindings: ASoC: Add chv3-audio
Message-ID: <20230417204150.GA3328603-robh@kernel.org>
References: <20230414140203.707729-1-pan@semihalf.com>
 <20230414140203.707729-4-pan@semihalf.com>
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On Fri, Apr 14, 2023 at 04:01:57PM +0200, Paweł Anikiel wrote:
> Add binding for chv3-audio device.
> 
> Signed-off-by: Paweł Anikiel <pan@semihalf.com>
> ---
>  .../bindings/sound/google,chv3-audio.yaml     | 49 +++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/google,chv3-audio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/sound/google,chv3-audio.yaml b/Documentation/devicetree/bindings/sound/google,chv3-audio.yaml
> new file mode 100644
> index 000000000000..8b602b60eaee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/google,chv3-audio.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/google,chv3-audio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Google Chameleon v3 audio
> +
> +maintainers:
> +  - Paweł Anikiel <pan@semihalf.com>
> +
> +properties:
> +  compatible:
> +    const: google,chv3-audio
> +
> +  google,audio-cpu0:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of controller #0
> +
> +  google,audio-codec0:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of codec #0
> +
> +  google,audio-cpu1:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of controller #1
> +
> +  google,audio-codec1:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: The phandle of codec #1

Why do you need custom properties when we have standard property to 
point to these things (sound-dai). We also have bindings to handle 
multiple devices.

Rob