linux-kernel - Re: [PATCH v6 3/3] arm64: dts: allwinner: a64: enable sound on Pinebook

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Date:   Thu, 8 Nov 2018 08:28:07 -0800
From:   Vasily Khoruzhick <anarsoul@...il.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        arm-linux <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 3/3] arm64: dts: allwinner: a64: enable sound on Pinebook

On Wed, Nov 7, 2018 at 11:30 PM Chen-Yu Tsai <wens@...e.org> wrote:
>
> On Thu, Nov 8, 2018 at 2:42 PM Vasily Khoruzhick <anarsoul@...il.com> wrote:
> >
> > This commit enables I2S, digital and analog parts of audiocodec on
> > Pinebook
> >
> > Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
> > ---
> >  .../dts/allwinner/sun50i-a64-pinebook.dts     | 42 +++++++++++++++++++
> >  1 file changed, 42 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> > index 77fac84797e9..73f171f4ba9b 100644
> > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
> > @@ -64,6 +64,23 @@
> >                 compatible = "mmc-pwrseq-simple";
> >                 reset-gpios = <&r_pio 0 2 GPIO_ACTIVE_LOW>; /* PL2 */
> >         };
> > +
> > +       speaker_amp: speaker_amp {
> > +               compatible = "simple-audio-amplifier";
> > +               enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
>
> You might want to add a sound-name-prefix property. See

No need, there's only speaker amplifier in Pinebook.

>
>     Documentation/devicetree/bindings/sound/name-prefix.txt
>
> Also this should have a reference to its power supply regulator.

It's powered from V5P0_USB according to schematics, which comes out of
5V BOOST USB HOST MODE POWER - and it's not controlled by software. So
there's nothing to reference.

>
> > +       };
> > +};
> > +
> > +&codec {
> > +       status = "okay";
> > +};
> > +
> > +&codec_analog {
> > +       status = "okay";
> > +};
> > +
> > +&dai {
> > +       status = "okay";
> >  };
> >
> >  &ehci0 {
> > @@ -267,6 +284,31 @@
> >         vcc-hdmi-supply = <&reg_dldo1>;
> >  };
> >
> > +&sound {
> > +       status = "okay";
> > +       simple-audio-card,widgets = "Microphone", "Internal Microphone Left",
> > +                                   "Microphone", "Internal Microphone Right",
> > +                                   "Headphone", "Headphone Jack",
> > +                                   "Speaker", "Internal Speaker";
> > +       simple-audio-card,aux-devs = <&codec_analog>, <&speaker_amp>;
> > +       simple-audio-card,routing =
> > +                       "Left DAC", "AIF1 Slot 0 Left",
> > +                       "Right DAC", "AIF1 Slot 0 Right",
> > +                       "INL", "LINEOUT",
> > +                       "INR", "LINEOUT",
> > +                       "Internal Speaker", "OUTL",
> > +                       "Internal Speaker", "OUTR",
> > +                       "Headphone Jack", "HP",
> > +                       "AIF1 Slot 0 Left ADC", "Left ADC",
> > +                       "AIF1 Slot 0 Right ADC", "Right ADC",
> > +                       "Left ADC", "ADC",
> > +                       "Right ADC", "ADC",
> > +                       "Internal Microphone Left", "MBIAS",
> > +                       "MIC1", "Internal Microphone Left",
> > +                       "Internal Microphone Right", "HBIAS",
> > +                       "MIC2", "Internal Microphone Right";
>
> The schematics is missing the actual jack, but this looks to be correct.
>
> ChenYu
>
> > +};
> > +
> >  &uart0 {
> >         pinctrl-names = "default";
> >         pinctrl-0 = <&uart0_pb_pins>;
> > --
> > 2.19.1
> >