linux-kernel - Re: [PATCH v2 1/2] ASoC: google: dt-bindings: Add sc7280-herobrine machine bindings

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Date:   Mon, 13 Sep 2021 12:51:19 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        agross@...nel.org, alsa-devel@...a-project.org,
        bgoswami@...eaurora.org, bjorn.andersson@...aro.org,
        broonie@...nel.org, devicetree@...r.kernel.org,
        judyhsiao@...omium.org, lgirdwood@...il.com,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        perex@...ex.cz, plai@...eaurora.org, robh+dt@...nel.org,
        rohitkr@...eaurora.org, srinivas.kandagatla@...aro.org,
        tiwai@...e.com
Subject: Re: [PATCH v2 1/2] ASoC: google: dt-bindings: Add sc7280-herobrine
 machine bindings

Quoting Srinivasa Rao Mandadapu (2021-09-13 06:17:41)
> diff --git a/Documentation/devicetree/bindings/sound/google,sc7280-herobrine.yaml b/Documentation/devicetree/bindings/sound/google,sc7280-herobrine.yaml
> new file mode 100644
> index 0000000..e0d705f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/google,sc7280-herobrine.yaml
> @@ -0,0 +1,169 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/sound/google,sc7280-herobrine.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Google SC7280-Herobrine ASoC sound card driver
> +
> +maintainers:
> +  - Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
> +  - Judy Hsiao <judyhsiao@...omium.org>
> +
> +description:
> +  This binding describes the SC7280 sound card which uses LPASS for audio.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - google,sc7280-herobrine
> +
> +  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.
> +
> +  model:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: User specified audio sound card name
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^dai-link@[0-9a-f]$":
> +    description:
> +      Each subnode represents a dai link. Subnodes of each dai links would be
> +      cpu/codec dais.
> +
> +    type: object
> +
> +    properties:
> +      link-name:
> +        description: Indicates dai-link name and PCM stream name.
> +        $ref: /schemas/types.yaml#/definitions/string
> +        maxItems: 1
> +
> +      reg:
> +        maxItems: 1
> +        description: dai link address.
> +
> +      cpu:
> +        description: Holds subnode which indicates cpu dai.
> +        type: object
> +        properties:
> +          sound-dai: true

Shouldn't sound-dai be required?

> +
> +      codec:
> +        description: Holds subnode which indicates codec dai.
> +        type: object
> +        properties:
> +          sound-dai: true

Shouldn't sound-dai be required? I don't know but maybe also additional
properties is false for this node too?

> +
> +    required:
> +      - link-name
> +      - cpu
> +      - codec

Should 'reg' be required?

> +
> +    additionalProperties: false