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Linux/TMDSEVM572X: Audio codec configuration

Nomo
Guru 16800 points

Part Number: TMDSEVM572X

Tool/software: Linux

Hello,

Could you tell me the way to set AIC3104 on TMDSEVM572X to the I2S mode?
My customers use Processor SDK Linux v.5.0.
It seems the McASP3 is set to DSP mode.
Should we change the dts file to I2S mode or change the driver for another codec?

Best Regards,
Nomo

  • 0
    TI__Guru**** 170625 points
    Hi Nomo,

    TMDSEVM572X is using DSP_B audio format, I2S mode:


    am57xx-beagle-x15-common.dtsi

    sound0: sound0 {
    compatible = "simple-audio-card";
    ....
    simple-audio-card,format = "dsp_b";
    .....
    }

    &mcasp3 {
    op-mode = <0>; /* MCASP_IIS_MODE */
    tdm-slots = <2>;
    }

    If you need to switch from DSP_B format to I2S format, you should update only DTS file:

    -simple-audio-card,format = "dsp_b";
    +simple-audio-card,format = "i2s";

    Check below pointers for details:

    linux-4.14.40/Documentation/devicetree/bindings/sound/simple-card.txt

    linux-4.14.40/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
    linux-4.14.40/arch/arm/boot/dts/am335x-boneblack-common.dtsi

    www.ti.com/.../sprac09a.pdf

    Regards,
    Pavel
  • 0 in reply to Pavel Botev
    TI__Guru**** 170625 points
    Nomo,

    If you have no more questions, please close/verify/resolve this thread.

    Regards,
    Pavel
  • 0 in reply to Pavel Botev
    Guru 16800 points
    Hello Pavel-san,

    I apologize for the delay of response.
    Now, I have no additional questions.
    When I have extra question, I'll post another thread.
    Thank you for your cooperation.

    Best Regards,
    Nomo