做的板子 rt5640 和 agx orin devkit一样的音频芯片 ， 外接扬声器hpol hpor ，只有i2c控制脚改变 31e0000改成316000 ，测试的时候没有声音 设备声卡已经正常生成 对比devkit log 发现 下面最后一行log card1没有
设备正常发现
Hi Wang,
Please provide below info, commands to collect that is available here Audio Setup and Development — NVIDIA Jetson Linux Developer Guide 1 documentation
- DT from target.
- Full Kernel logs.
dmesglog.txt (79.4 KB)
dt.log (396.6 KB)
Above change is not reflected in the target DT due to which error is observed.
By default tegra234-p3737-0000+p3701-0000-dynamic.dts overlay DT has the mentioned change which will be applied at the time of boot. Please try editing this file and check.
原来都是在这个里面更改的 不知道为什么这个里面修改没有去覆盖原来的，只能从原始设备树去修改
我查看了一下 devicetree是生效的
sound-dai is pointing to I2S1 phandle rather than rt5640.
nvidia-audio-card,dai-link@76 {
format = "i2s";
link-type = <0x02>;
status = "okay";
phandle = <0x25a>;
link-name = "rt5640-playback";
codec {
sound-dai = <0x1bd 0x02>;
prefix = "CVB-RT";
};
};
i2s@2901000 {
phandle = <0x1bd>;
这个是devkit 默认的配置 直接复制过来的
Understand your point. From the target DT log shared, the codec dai is not pointing to RT5640.
Suspecting sound-dai = <&rt5640 0> is getting overwritten by sound-dai = <&tegra_i2s1 I2S_DUMMY>. Could you please check the DT files and try removing the other sound-dai entry manually.
Please provide below data, log commands available in the link mentioned here, Agx orin rt5640 bsp36.4 - #9 by Sheetal.G.
- Dump of ALSA mixer controls.
- Clock summary during playback.
- Kernel logs after playback.
- Playback command used and the behavior like does it run for the mentioned duration or it exits immediately.
- Probe the I2S and AUD_MCLK and share the behavior.
Only this log won’t help. Please provide the logs as mentioned here Agx orin rt5640 bsp36.4 - #19 by Sheetal.G
上面有些log 操作怎么去查看
Commands to collect logs are mentioned in above link.
Behavior and command used for playing the audio.