Version: R35.1 Linux: 20.04 Through the HDMI external display, use the WM8904 codec to emit sound. How do I modify the device tree? Because I followed the tutorial to change it and it didn’t work out, I want to get some help, thank you. Here is my device tree modification file: tegra194-audio-p28…

I’m also working on tegra_machine_driver.c file to modify as follows: static int tegra_machine_wm8904_init(struct snd_soc_pcm_runtime *rtd) { struct device *dev = rtd->card->dev; int err; err = snd_soc_dai_set_sysclk(rtd->codec_dai, WM8904_CLK_MCLK, 12288000, SND_SOC_CLOCK_IN); if (err…

The control pin of WM8904 Codec and Jetson: I2C the corresponding device tree node is: i2c@c250000 ➜ ~ sudo i2cdetect -y -r -a 7 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: – – – – – – – – – – – – – – – – 10: – – – – – – – – – – 1a – – – – – 20: – – – – – – – – – – – – – – – – 30: – –…

I learned that ASoC is divided into Machine, Platform and Codec three parts, of which the Machine driver is responsible for the coupling between Platform and Codec and some and device- or board-specific code, again referencing the content of the previous section: the Machine driver is responsible fo…

Check I2C communication & codecs probe: ➜ ~ sudo cat /sys/bus/i2c/devices/7-001a/uevent [sudo] password for nvidia: OF_NAME=rt5659.7-001a OF_FULLNAME=/i2c@c250000/rt5659.7-001a@1a OF_COMPATIBLE_0=realtek,rt5658 OF_COMPATIBLE_N=1 MODALIAS=of:Nrt5659.7-001aT(null)Crealtek,rt5658 I have modified th…

I also refer to this topic, and I also modified it according to it, but the wm8904 codec was not configured successfully， Check I2C communication & codecs probe: ➜ ~ sudo cat /sys/bus/i2c/devices/7-001a/uevent [sudo] password for nvidia: OF_NAME=rt5659.7-001a OF_FULLNAME=/i2c@c250000/rt5659.7-001…

@DaneLLL ,thank you [image] DreamLan: Version: R35.1 Linux: 20.04 Through the HDMI external display, use the WM8904 codec to emit sound. How do I modify the device tree? Because I followed the tutorial to change it and it didn’t work out, I want to get some help, thank you. Here is my device …

How to use the WM8904 codec in Jetson AGX Xavier？

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier

DaneLLL February 13, 2023, 11:16am 7

Hi,
A user has enabled it on TX2 NX. You may refer to this topic and give it a try:
WM8904 audio driver support for Jetson TX2 NX

Besides, FE-PI audio v2 board is supported in 40-pin expansion header. You can enable it through jetson-io.py and refer to the device tree. To check which part has to be modified in device tree.

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How to use the WM8904 codec in Jetson AGX Xavier？

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