I2S2 & I2S4 ALC5640 Jetson Orin NX JP5.1.2 no sound

[4nila97]

Dear all,

We have I2S0 & I2S1 connected to audio codec ALC5640

Below is the hardware schematic:

I’ve modified tegra234-mb1-bct-pinmux-p3767-hdmi-a03.dtsi & tegra234-mb1-bct-gpio-p3767-hdmi-a03.dtsi.

Do I need to add following nodes on tegra-sound? Could you please share me an example on how to modify the audio codec settings in tegra234-p3767-common-audio.dtsi?
nvidia-audio-card,widgets
nvidia-audio-card,routing

tegra234-mb1-bct-pinmux-p3767-hdmi-a03.zip (4.9 KB)
tegra234-mb1-bct-gpio-p3767-hdmi-a03.zip (1.6 KB)

I also added this in tegra234-p3767-common-audio.dtsi

On the system, i can detect 0x1c on i2c-0.

Thanks.

[Sheetal.G]

@4nila97

Do I need to add following nodes on tegra-sound?

Yes, it is required to add in sound node. Add them like below:

    sound {               
                nvidia-audio-card,widgets =
                        "Headphone",    "CVB-RT Headphone Jack",
                        "Microphone",   "CVB-RT Mic Jack",
                        "Speaker",      "CVB-RT Int Spk",
                        "Microphone",   "CVB-RT Int Mic";

                nvidia-audio-card,routing =
                        "CVB-RT Headphone Jack",     "CVB-RT HPOL",
                        "CVB-RT Headphone Jack",     "CVB-RT HPOR",
                        "CVB-RT IN1P",               "CVB-RT Mic Jack",
                        "CVB-RT IN2P",               "CVB-RT Mic Jack",
                        "CVB-RT Int Spk",            "CVB-RT SPOLP",
                        "CVB-RT Int Spk",            "CVB-RT SPORP",
                        "CVB-RT DMIC1",              "CVB-RT Int Mic",
                        "CVB-RT DMIC2",              "CVB-RT Int Mic";
}

• Also, create dai-link with specific I2S and RT5640 codec as mentioned here, Audio Setup and Development — Jetson Linux Developer Guide documentation (nvidia.com)
• Next is to setup the route before running audio usecase. The mentioned link has details Audio Setup and Development — Jetson Linux Developer Guide documentation (nvidia.com)
• Will suggest to try first with one I2S. Also, please provide more details on need of two I2S in the mentioned usecase.

[4nila97]

Hi Sheetal.G

Thanks for your reply.

I added the sound node and created dai-link.

DTS as below.
tegra234-p3767-common-audio.zip (2.4 KB)

I can measured I2S0_DOUT signal with an oscilloscope when i use test sound in settings, but still no sound comes out from speaker.

I also run below command.

amixer -c APE -cset name="I2S2 Mux" "ADMAIF1"
amixer -c APE -cset name="ADMAIF1 Mux" "I2S2"

Is there anything wrong in my command?

[Sheetal.G]

@Sheetal.G

Next is to setup the route before running audio usecase. The mentioned link has details Audio Setup and Development — Jetson Linux Developer Guide documentation (nvidia.com)

As mentioned here, you need to setup codec route. Incase, you did it already, please share the output of amixer -c APE contents

[4nila97]

Here is the output:
amixercontents.zip (216 Bytes)

[Sheetal.G]

Hi,
Attached file seems empty, please attach again.

[4nila97]

Please see below attached file.
amixercontents.zip (26.9 KB)

[Sheetal.G]

Hi,

Please provide below details,

• I2S0 is connected to tegra I2S2/ I2S4?
• Share the playback command.
• Speaker is connected to HP or SPO of codec?

[4nila97]

1. I2S0 is connected to I2S2
2. aplay -D hw:APE,0
3. Speaker is connected to SPO of codec

[Sheetal.G]

@Sheetal.G

Next is to setup the route before running audio usecase. The mentioned link has details Audio Setup and Development — Jetson Linux Developer Guide documentation (nvidia.com)

The route mentioned above is for HP, please change it to SPO. You can refer from here “The audio ALC5640 can't work on I2S0 and I2C2 for Xaiver NX - #16 by mkumard”

• I2S0 is connected to I2S2, but in DT dai-link is created for i2s4. Please update it to i2s2.

&i2s4_to_codec {
	link-name = "rt5640-playback";
        //bit-format = "s16_le";
        //srate = <48000>;
        //num-channel = <2>;
	codec {
		sound-dai = <&rt5640 0>;
		prefix = "CVB-RT";
	};
};

• I2S1 Mux is also connected to ADMAIF1, please reset it to 0.

Incase still its not working please share below data,

• dmesg
• amixer -c APE scontents
• updated DT
• aplay command behavior like does it run for duration of wav file and terminal output.
• codec regdump → cat /sys/kernel/debug/regmap/-001c/registers
• pinmux dump → cat /sys/kernel/debug/pinctrl/.pinmux/pinconf-groups