AM69: Kernel Error: "debugfs: File 'Headphone Jack' in directory 'dapm' already present!"

Hi Hiago,

I have not seen this error before. I assume there is something in the device tree that is causing the issue.

I've found a similar post within the nvidia forums: https://forums.developer.nvidia.com/t/how-do-i-add-the-wm8904-audio-driver-in-the-jetson-device-tree/242036/43?page=3 

I also found the log in other Toradex forum posts, but it was not the focus of the question and was simply within the logs.

Here is documentation on DAPM as well: https://www.kernel.org/doc/html/v5.4/sound/soc/dapm.html 

Best,
Jared

Hi Jared,

Thanks for the reply. This is our current device tree node:

	sound {
		compatible = "simple-audio-card";
		simple-audio-card,bitclock-master = <&codec_dai>;
		simple-audio-card,format = "i2s";
		simple-audio-card,frame-master = <&codec_dai>;
		simple-audio-card,name = "aquila-wm8904";
		simple-audio-card,mclk-fs = <256>;
		simple-audio-card,routing =
			"Headphone Jack", "HPOUTL",
			"Headphone Jack", "HPOUTR",
			"IN2L", "Line In Jack",
			"IN2R", "Line In Jack",
			"Headphone Jack", "MICBIAS",
			"IN1L", "Headphone Jack";
		simple-audio-card,widgets =
			"Microphone", "Headphone Jack",
			"Headphone", "Headphone Jack",
			"Line", "Line In Jack";


		codec_dai: simple-audio-card,codec {
			sound-dai = <&wm8904_1a>;
		};

		simple-audio-card,cpu {
			sound-dai = <&mcasp4>;
		};
	};

I believe we already setting this Jack property correctly, not sure why this should be different now.

Do you happen to know if something should be different here?

Thanks!