linux-kernel - Re: [PATCH v8 25/34] ASoC: dt-bindings: Update example for enabling USB offload on SM8250

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Date:   Wed, 11 Oct 2023 14:28:07 -0700
From:   Wesley Cheng <quic_wcheng@...cinc.com>
To:     Rob Herring <robh@...nel.org>
CC:     <bgoswami@...cinc.com>, <lgirdwood@...il.com>,
        <broonie@...nel.org>, <gregkh@...uxfoundation.org>,
        <robh+dt@...nel.org>, <konrad.dybcio@...aro.org>,
        <conor+dt@...nel.org>, <linux-usb@...r.kernel.org>,
        <andersson@...nel.org>, <Thinh.Nguyen@...opsys.com>,
        <srinivas.kandagatla@...aro.org>, <linux-kernel@...r.kernel.org>,
        <agross@...nel.org>, <mathias.nyman@...el.com>,
        <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <perex@...ex.cz>, <tiwai@...e.com>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v8 25/34] ASoC: dt-bindings: Update example for enabling
 USB offload on SM8250

Hi Rob,

On 10/10/2023 7:31 PM, Rob Herring wrote:
> 
> On Tue, 10 Oct 2023 17:21:37 -0700, Wesley Cheng wrote:
>> Add an example on enabling of USB offload for the Q6DSP.  The routing can
>> be done by the mixer, which can pass the multimedia stream to the USB
>> backend.
>>
>> Acked-by: Rob Herring <robh@...nel.org>
>> Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
>> ---
>>   .../devicetree/bindings/sound/qcom,sm8250.yaml    | 15 +++++++++++++++
>>   1 file changed, 15 insertions(+)
>>
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> Error: Documentation/devicetree/bindings/sound/qcom,sm8250.example.dts:97.44-45 syntax error
> FATAL ERROR: Unable to parse input tree
> make[2]: *** [scripts/Makefile.lib:419: Documentation/devicetree/bindings/sound/qcom,sm8250.example.dtb] Error 1
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1427: dt_binding_check] Error 2
> make: *** [Makefile:234: __sub-make] Error 2
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20231011002146.1821-26-quic_wcheng@quicinc.com
> 
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.
> 

Would you happen to know what the error is in this case?  I made sure I 
was running the latest dtschema (v2023.9) and had yamllint installed as 
well.  When I took a look at the DTB and DTS output it looked ok...

             usb-dai-link {
                 link-name = "USB Playback";
                 cpu {
                     sound-dai = <&q6afedai USB_RX>;//--->syntax error?
                 };

                 codec {
                     sound-dai = <&usbdai USB_RX>;
                 };

                 platform {
                     sound-dai = <&q6routing>;
                 };
             };

I didn't make any changes to this in between v7 and v8, but v7 passed:
https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230921214843.18450-25-quic_wcheng@quicinc.com/

Thanks
Wesley Cheng