linux-kernel - Re: [PATCH v2 08/10] dt-bindings: sound: Add support for QMC audio

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Message-ID: <1dfade07-f8c4-2e16-00dc-c7d183708259@linaro.org>
Date:   Wed, 11 Jan 2023 10:58:11 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Herve Codina <herve.codina@...tlin.com>
Cc:     Li Yang <leoyang.li@....com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Qiang Zhao <qiang.zhao@....com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 08/10] dt-bindings: sound: Add support for QMC audio

On 10/01/2023 09:07, Herve Codina wrote:
>>> +      qmc-chan:  
>>
>> Missing vendor prefix.
> 
> Will be changed to 'fsl,qmc-chan'
> 
>>
>>> +        $ref: /schemas/types.yaml#/definitions/phandle-array  
>>
>> Why this is not a phandle?
> 
> I have try '$ref: /schemas/types.yaml#/definitions/phandle'
> 
> I have an error from make dt_binding_check: 
>   dai@16:fsl,qmc-chan:0: [4294967295, 16] is too long
> 
> I need a phandle with an argument ie <&qmc 16>.
> Is there an alternative to phandle-array to handle this case ?

OK, then you need items like here:
https://elixir.bootlin.com/linux/v5.18-rc1/source/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml#L42


Best regards,
Krzysztof