linux-kernel - Re: [PATCH v2 2/3] ARM: dts: allwinner: orangepi-zero2: Add default audio routing

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Message-ID: <aMLmlsZimgKVeiUF@probook>
Date: Thu, 11 Sep 2025 15:11:21 +0000
From: J. Neuschäfer <j.ne@...teo.net>
To: Chen-Yu Tsai <wens@...e.org>
Cc: j.ne@...teo.net, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] ARM: dts: allwinner: orangepi-zero2: Add default
 audio routing

On Wed, Sep 10, 2025 at 08:58:49PM +0800, Chen-Yu Tsai wrote:
> On Sun, Aug 10, 2025 at 12:18 AM J. Neuschäfer via B4 Relay
> <devnull+j.ne.posteo.net@...nel.org> wrote:
> >
> > From: "J. Neuschäfer" <j.ne@...teo.net>
> 
> 
> The subject is misleading. The Orange Pi Zero2 is a different board with
> the H616 SoC.

Oh, indeed. I got confused. Thank you for catching this error!

J. Neuschäfer

> 
> ChenYu
> 
> > The Orange Pi Zero Plus 2 has the same pinout[1] as the Orange Pi
> > Zero[2] (with the possible exception of line-out left/right being
> > swapped), and the Orange Pi Zero Interface Board is sold[3] as
> > compatible with both of them. We can thus use the same audio routing.
> >
> > [1]: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero-Plus-2.html
> > [2]: https://linux-sunxi.org/Xunlong_Orange_Pi_Zero#Expansion_Port
> > [3]: https://orangepi.com/index.php?route=product/product&product_id=871
> >
> > Signed-off-by: J. Neuschäfer <j.ne@...teo.net>
> > ---
> >
> > v2:
> > - new patch
> > ---
> >  .../boot/dts/allwinner/sun8i-h3-orangepi-zero-plus2.dts    | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/allwinner/sun8i-h3-orangepi-zero-plus2.dts b/arch/arm/boot/dts/allwinner/sun8i-h3-orangepi-zero-plus2.dts
> > index 7a6444a10e2534458b7380882ea4fd42bd54fea8..97a3565ac7a819be6b18d324fa6f65d0d1d2b2ad 100644
> > --- a/arch/arm/boot/dts/allwinner/sun8i-h3-orangepi-zero-plus2.dts
> > +++ b/arch/arm/boot/dts/allwinner/sun8i-h3-orangepi-zero-plus2.dts
> > @@ -99,6 +99,20 @@ wifi_pwrseq: pwrseq {
> >         };
> >  };
> >
> > +/*
> > + * Audio input/output is exposed on the 13-pin header and can't be used for
> > + * anything else. However, adapter boards may use different audio routing.
> > + * - http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero-Plus-2.html
> > + * - Allwinner H3 Datasheet, section 3.1. Pin Characteristics
> > + */
> > +&codec {
> > +       allwinner,audio-routing =
> > +               "Line Out", "LINEOUT",
> > +               "MIC1", "Mic",
> > +               "Mic",  "MBIAS";
> > +       status = "disabled";
> > +};
> > +
> >  &de {
> >         status = "okay";
> >  };
> >
> > --
> > 2.48.0.rc1.219.gb6b6757d772
> >
> >
> >