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SubjectRe: [PATCH v0 2/2] arm64: dts: rockchip: add support for Firefly ROC-RK3399-PC-PLUS
Date
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";
> > + 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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