linux-kernel - Re: [PATCH v2 4/4] riscv: dts: starfive: add tdm node and sound card

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Date:   Mon, 24 Apr 2023 11:21:11 +0800
From:   Walker Chen <walker.chen@...rfivetech.com>
To:     Conor Dooley <conor@...nel.org>
CC:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        "Rob Herring" <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v2 4/4] riscv: dts: starfive: add tdm node and sound card



On 2023/4/22 0:50, Conor Dooley wrote:
> Hey Walker,
> 
> On Thu, Apr 20, 2023 at 10:41:18AM +0800, Walker Chen wrote:
>> Add the tdm controller node and sound card for the StarFive JH7110 SoC.
> 
> Is this one of these waveshare things + a visionfive 2?
> https://www.waveshare.com/wm8960-audio-hat.htm

Hey Conor,
I'm glad to receive your comments.

Now we are using this board + VisionFive2 :
https://wiki.seeedstudio.com/ReSpeaker_2_Mics_Pi_HAT/

> 
> I'm a bit lost as to why this needs a whole new board, should it not
> just be an overlay that you can apply to the existing dts?
> 
> Taking this to an extreme, should I expect to see a new devicetree for
> everything RPi hat that you decide to use with a VisionFive 2?

For your response, I did some thinking. Because wm8960 codec is not integrated
 on the VisionFive2 board, perhaps using overlay is a better way.

> 
> Also, it'd be nice to provide a Link: to where someone can find more
> info on this combination of items. Google for "wm8960 visionfive 2"
> gives me nothing, nor does "starfive audio card" etc.
> 
> Thanks,
> Conor.
> 
>> Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
>> Signed-off-by: Walker Chen <walker.chen@...rfivetech.com>
>> ---

Best regards,
Walker