[alsa-devel] No sound captured with SGTL5000 on i.MX6 in I²S master mode

[Jean-Michel Hautbois]

Hi

I use fsl-asoc-card now.

This is working when compiling as a module, and when doing a modprobe
manually, but when I compile it as built-in, with these :
CONFIG_SND_SOC_IMX_SGTL5000 is not set
CONFIG_SND_SOC_FSL_ASOC_CARD=y
CONFIG_SND_SOC_SGTL5000=y

I get the following error :
[   13.561618] fsl-asoc-card sound: ASoC: CODEC DAI sgtl5000 not registered
[   13.568503] fsl-asoc-card sound: snd_soc_register_card failed (-517)
[   13.574992] platform sound: Driver fsl-asoc-card requests probe deferral

It loops on it during boot, and never registers...

If I have :
CONFIG_SND_SOC_IMX_SGTL5000 is not set
CONFIG_SND_SOC_FSL_ASOC_CARD=m
CONFIG_SND_SOC_SGTL5000=m

And after login :
$> lsmod
Module                  Size  Used by
snd_soc_sgtl5000       14074  0
$> modprobe snd-soc-fsl-asoc-card
[   65.300995] fsl-asoc-card sound: ASoC: CODEC DAI sgtl5000 not registered
[   65.307963] fsl-asoc-card sound: snd_soc_register_card failed (-517)
[   65.314423] platform sound: Driver fsl-asoc-card requests probe deferral
$> rmmod snd-soc-sgtl5000
$> modprobe snd-soc-sgtl5000
[  138.936753] sgtl5000 1-000a: sgtl5000 revision 0x11
[  138.987974] 1-000a: 1200 mV normal
[  139.000923] sgtl5000 1-000a: Using internal LDO instead of VDDD
[  139.032169] fsl-asoc-card sound: sgtl5000 <-> 2028000.ssi mapping ok
[  139.038624] fsl-asoc-card sound: ASoC: no source widget found for
ASRC-Playback
[  139.045984] fsl-asoc-card sound: ASoC: Failed to add route
ASRC-Playback -> direct -> CPU-Playback
[  139.055187] fsl-asoc-card sound: ASoC: no sink widget found for ASRC-Capture
[  139.062253] fsl-asoc-card sound: ASoC: Failed to add route
CPU-Capture -> direct -> ASRC-Capture

The routes are not ok, but I think I read something about it another
thread, but it works.
It seems that if snd-soc-sgtl5000 is already registered then it does
not work. It is probably due to my DT ?

Here is an extract of the DT :
/ {
    sound {
        compatible = "fsl,imx6q-vbx3-sgtl5000",
                 "fsl,imx-audio-sgtl5000";
        model = "imx6q-vbx3-sgtl5000";
        ssi-controller = <&ssi1>;
        audio-codec = <&codec>;
        audio-routing =
            "MIC_IN", "Mic Jack",
            "Mic Jack", "Mic Bias",
            "A1N1L", "Line In Jack",
            "A1N1R", "Line In Jack";
        mux-int-port = <1>;
        mux-ext-port = <5>;
    };
};

&i2c2 {
    clock-frequency = <100000>;
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_i2c2>;
    status = "okay";

    codec: sgtl5000 at 0a {
        compatible = "fsl,sgtl5000";
        reg = <0x0a>;
        clocks = <&clks 201>;
        VDDA-supply = <&vgen6_reg>;
        VDDIO-supply = <&vgen6_reg>;
        sysclk = <24000000>;
    };
};

Thanks,
JM