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Message-ID: <c2cb5781-f2da-eef8-50db-6bfbaaed685e@linaro.org>
Date:   Fri, 4 Aug 2023 11:45:32 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Maso Huang (黃加竹) 
        <Maso.Huang@...iatek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "chenxiangrui@...qin.corp-partner.google.com" 
        <chenxiangrui@...qin.corp-partner.google.com>,
        Trevor Wu (吳文良) <Trevor.Wu@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        Allen-KH Cheng (程冠勲) 
        <Allen-KH.Cheng@...iatek.com>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "perex@...ex.cz" <perex@...ex.cz>, "arnd@...db.de" <arnd@...db.de>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>
Subject: Re: [PATCH v3 6/6] ASoC: dt-bindings: mediatek,mt7986-afe: add audio
 afe document

On 01/08/2023 10:25, Maso Huang (黃加竹) wrote:
> On Fri, 2023-07-28 at 14:51 +0200, Krzysztof Kozlowski wrote:
>>  	 
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>  On 28/07/2023 11:08, Maso Huang wrote:
>>> Add mt7986 audio afe document.
>>>
>>> Signed-off-by: Maso Huang <maso.huang@...iatek.com>
>>
>> Thank you for your patch. There is something to discuss/improve.
>>
>>> +
>>> +required:
>>> +  - compatible
>>> +  - reg
>>> +  - interrupts
>>> +  - clocks
>>> +  - clock-names
>>> +  - assigned-clocks
>>> +  - assigned-clock-parents
>>
>> You should constrain your clocks per variants. I doubt that they are
>> really so flexible/optional on each SoC... or maybe missing clocks
>> are
>> result of unimplemented parts in the driver? But then this should not
>> really affect bindings. Bindings still should require such clocks.
>> Your
>> DTS can always provide a <0>, if needed.
>>
>>
> 
> Hi Krzysztof,
> 
> After internal check, assigned-clocks and assigned-clock-parents are
> not required on this SoC. 
> Maybe we can just drop these two options?

It's separate issue, but yes - why requiring them?

I wrote about missing constraints for your clocks in the bindings.

Best regards,
Krzysztof

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