[参考译文] AM69：内核错误：&quot；debugfs：file &#39；Headphone Jack&#39；in directory &#39；dapm&#39；already present！&quot；

您好、Hiago、

我以前没有看到过此错误。 我假设设备树中有问题是由某个问题引起的。

我在 NVIDIA 论坛上找到了一个类似的帖子： https://forums.developer.nvidia.com/t/how-do-i-add-the-wm8904-audio-driver-in-the-jetson-device-tree/242036/43?page=3 

我也在其他 Toradex 论坛帖子中找到了日志,但它不是问题的焦点,而只是在日志中。

以下是有关 DAPM 的文档： https://www.kernel.org/doc/html/v5.4/sound/soc DAPM/dapm.html 

此致！
Jared

尊敬的 Jared：

感谢您的答复。 这是我们当前的器件树节点：

	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>;
		};
	};

我相信我们已经正确设置了这个 Jack 属性、不知道为什么现在应该有所不同。

你碰巧知道这里的东西是否应该不同?

谢谢！