linux-kernel - Re: [PATCH v4 1/2] ASoC: google: dt-bindings: Add sc7280-herobrine machine bindings

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Date:   Mon, 8 Nov 2021 13:05:41 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Stephen Boyd <swboyd@...omium.org>,
        "Gross, Andy" <agross@...nel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Banajit Goswami <bgoswami@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
        judyhsiao@...omium.org, Liam Girdwood <lgirdwood@...il.com>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Patrick Lai <plai@...eaurora.org>,
        Rohit kumar <rohitkr@...eaurora.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH v4 1/2] ASoC: google: dt-bindings: Add sc7280-herobrine
 machine bindings


On 11/6/2021 7:00 AM, Rob Herring wrote:
Thanks for Your time Rob!!!
> On Tue, Nov 2, 2021 at 5:57 AM Srinivasa Rao Mandadapu
> <srivasam@...eaurora.org> wrote:
>>
>> On 10/30/2021 12:37 AM, Stephen Boyd wrote:
>> Thanks for Your time Stephen!!!
>>> Quoting Srinivasa Rao Mandadapu (2021-10-29 08:04:35)
>>>> 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..3a781c8
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/sound/google,sc7280-herobrine.yaml
>>>> @@ -0,0 +1,170 @@
>>>> +# 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
>>> Is sound-dai required? And additionalProperties is false? I think we
>>> need that yet again.
>> Okay. Will mark additionalPropertiesas true.
> 'additiionalProperties: true' is almost never right. It's generally
> only correct for schemas that are incomplete collections of
> properties.
>
> Rob

As per Stephen Suggestion. thought it's a solution.

The sound-dai required here, and same is fallowed in SC7180 machine 
driver bindings.

Could You please suggest better approach on this?


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