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SubjectRe: [PATCH v0 2/2] arm64: dts: rockchip: add support for Firefly ROC-RK3399-PC-PLUS
Date
Am Dienstag, 29. Juni 2021, 11:30:10 CEST schrieb Heiko Stübner:
> Hi Levin,
>
> Am Dienstag, 29. Juni 2021, 11:15:59 CEST schrieb Levin:
> > Hi all, is it possible to turn on some codec mixer switch in the device
> > tree?
>
> I don't think that is appropriate and/or/ possible in the devicetree.
>
> Instead I think you want an Alsa UCM profile for it, see:
> https://github.com/alsa-project/alsa-ucm-conf/tree/master/ucm2/Rockchip
>
>
> Heiko
>
> >
> >
> > Currently, to hear to sound, we need to run the following commands from
> > the user space:
> >
> > # turn on mixer switch
> >
> > amixer -c 1 sset 'Left Mixer' on
> > amixer -c 1 sset 'Right Mixer' on
> >
> > # raise volume
> >
> > amixer -c 1 sset 'Output 2' 36
> >
> >
> > If these settings can be embedded into device tree, and set by kernel as
> > initial ALSA path settings,
> >
> > user can hear the sound with zero ALSA config. That'll be great.
> >
> >
> > On 2021-06-28 11:54 AM, djw@t-chip.com.cn wrote:
> > > +
> > > + es8388-sound {
> > > + compatible = "simple-audio-card";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&hp_det_pin>;
> > > + simple-audio-card,name = "rockchip,es8388-codec";

and I guess you'd want a more specific name as that config likely is board-specific
not for all boards using the es8388-codec?


Heiko


> > > + simple-audio-card,format = "i2s";
> > > + simple-audio-card,mclk-fs = <256>;
> > > +
> > > + simple-audio-card,widgets =
> > > + "Microphone", "Mic Jack",
> > > + "Headphone", "Headphones";
> > > + simple-audio-card,routing =
> > > + "LINPUT1", "Mic Jack",
> > > + "Headphone Amp INL", "LOUT2",
> > > + "Headphone Amp INR", "ROUT2",
> > > + "Headphones", "Headphone Amp OUTL",
> > > + "Headphones", "Headphone Amp OUTR";
> > > +
> > > + simple-audio-card,hp-det-gpio = <&gpio2 RK_PA6 GPIO_ACTIVE_HIGH>;
> > > + simple-audio-card,aux-devs = <&headphones_amp>;
> > > + simple-audio-card,pin-switches = "Headphones";
> > > +
> > > + simple-audio-card,cpu {
> > > + sound-dai = <&i2s1>;
> > > + };
> > > +
> > > + simple-audio-card,codec {
> > > + sound-dai = <&es8388>;
> > > + };
> > > + };
> > > +
> > >
> >
>
>




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