Problem with DeviceTree , third codec freeze

Technical Support
, , ,
1

Hello,

I’m working with Colibri IMX6 Solo 256MB (Toradex BSP 2.4) .
Our base board has 3 codecs sgtl5000.

  • 1 Codec - Colibri IMX6 Solo 256MB
  • 2 Codecs - Base Board

The SoM’s Codec and 1 of the main board (SSI2) is working fine but the second (SSI3) one freeze when start the aplay/arecord.
The i2c is working good, I can see all the codecs attached at i2c bus.

  • Codec 1 (SoM) - SSI1 I2C-2 - Working Ok
  • Codec 2 (Base Board) - SSI2 - I2C-4 - Working OK
  • Codec 3 (Base Board) - SSI3 - I2C-1 - Not Working

I’m suspecting a problem in my devicetree

root@colibri-imx6:~# aplay /usr/share/sounds/mysound/ringtone1.wav -V mono -Dhw:2,0 

Playing WAVE '/usr/share/sounds/mysound/ringtone1.wav' : Signed 16 bit Little Endian, Rate 32000 Hz,     Stereo

Hardware PCM card 2 'imx6-colibri-sgtl5000' device 0 subdevice 0
#######+                                           | 12%^CAborted by signal Interrupt...

root@colibri-imx6:~# Write failed: Broken pipe

I’m using kernel 3.10.17 with some modification in sgtl5000 drivers to support more than 1 codec.
In attached are the logs and the devicetree modification.
link text
Someone has an advice to debug this problem?

Thank you very much.

Best Regards,

Caio Pereira

2

You seem to link to the same audio clock twice ( audioclk ), but I guess in practice that should not make a difference since you don’t need to control the clock by software. Is the clock looking good hardware wise?

How does freezing exacly behave? Do I see that correct that you still can use Ctrl+C? Does it play first? If yes, for how long?

3

Also make sure that you assign pinmux pinctrl_audmux_t2/pinctrl_audmux_t3 to the ssi controller nodes.

4

@Stefan

I could fix it today.

I was using the wrong “int-port” value for SSI3.

The right value is “7” and not “3”.

At first I was thinking it was a clock problem, so it was duplicated but I will remove.

Thank you !

The guys from NXP (igorpadykov) finded this error for me.

   sound3 {
           status = "okay";
           compatible = "fsl,imx6-colibri-sgtl5000",
                        "fsl,imx-audio-sgtl5000";
           model = "imx6-colibri-sgtl5000";
           ssi-controller = <&ssi3>;
           audio-codec = <&codec3>;
           audio-routing =
                   "MIC_IN", "Mic Jack",
                   "Mic Jack", "Mic Bias",
                  "Headphone Jack", "HP_OUT",
                   "AIFOUT", "ADC",
                   "DAC", "AIFIN";
          mux-int-port = < **7** >;           
          mux-ext-port = <4>;
   };