linux-kernel - Re: [PATCH v2 09/14] ASoC: dt-bindings:: qcom,q6asm: convert to dtschema

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Date:   Thu, 8 Sep 2022 11:05:47 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH v2 09/14] ASoC: dt-bindings:: qcom,q6asm: convert to
 dtschema

On 07/09/2022 19:57, Rob Herring wrote:
> On Wed, Sep 07, 2022 at 12:15:51PM +0200, Krzysztof Kozlowski wrote:
>> Convert Qualcomm Audio Stream Manager (Q6ASM) bindings to DT schema.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>
>> ---
>>
>> Expected warning because the qcom,apr.yaml is being fixed in next commit:
>>
>>   Documentation/devicetree/bindings/sound/qcom,q6asm.example.dtb: apr: service@7: 'dais' does not match any of the regexes: '^.*@[0-9a-f]+$', 'pinctrl-[0-9]+'
>>     From schema: /home/krzk/dev/linux/linux/Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml
>>
>> Changes since v1:
>> 1. New patch.
>> ---
>>  .../devicetree/bindings/sound/qcom,q6asm.txt  |  70 -----------
>>  .../devicetree/bindings/sound/qcom,q6asm.yaml | 112 ++++++++++++++++++
>>  2 files changed, 112 insertions(+), 70 deletions(-)
>>  delete mode 100644 Documentation/devicetree/bindings/sound/qcom,q6asm.txt
>>  create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6asm.yaml
> 
> Should be qcom,q6asm-dais.yaml or you need to add qcom,q6asm compatible?

Right, it should be -dais.

> 
>>
>> diff --git a/Documentation/devicetree/bindings/sound/qcom,q6asm.txt b/Documentation/devicetree/bindings/sound/qcom,q6asm.txt
>> deleted file mode 100644
>> index 0d0075125243..000000000000
>> --- a/Documentation/devicetree/bindings/sound/qcom,q6asm.txt
>> +++ /dev/null
>> @@ -1,70 +0,0 @@
>> -Qualcomm Audio Stream Manager (Q6ASM) binding
>> -
>> -Q6ASM is one of the APR audio service on Q6DSP.
>> -Please refer to qcom,apr.txt for details of the common apr service bindings
>> -used by the apr service device.
>> -
>> -- but must contain the following property:
>> -
>> -- compatible:
>> -	Usage: required
>> -	Value type: <stringlist>
>> -	Definition: must be "qcom,q6asm-v<MAJOR-NUMBER>.<MINOR-NUMBER>".
>> -		    Or "qcom,q6asm" where the version number can be queried
>> -		    from DSP.
>> -		    example "qcom,q6asm-v2.0"
> 
> Where is this compatible handled now? 

The "qcom,q6asm" is handled in:
Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml

The "qcom,q6asm-v<MAJOR-NUMBER>.<MINOR-NUMBER>" is not handled because
it seems it is not used anywhere. I did not find such usage also in
downstream sources, so it seems version can be always auto-detected (I
did not confirm it with datasheet, though).

I'll explain this in commit msg.



Best regards,
Krzysztof