With the TI target board of J721E-EVM and TI SDK J721e 07_01_00_10, and audio port is "|o|p1"
on the target board of J721E-EVM, it's no any output when aplay a wav file, the kernel version is "5.4.74-g9574bba32a"
root@j7-evm:~# uname -a
Linux j7-evm 5.4.74-g9574bba32a #1 SMP PREEMPT Thu Nov 19 18:30:39 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux
root@j7-evm:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: j721ecpbanalog [j721e-cpb-analog], device 0: cpb pcm3168a Playback pcm3168a-dac-0 [cpb pcm3168a Playback pcm3168a-dac-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
However, the same board and same audio play port with the same wav file, it aplays fine with the previous TI SDK version:
root@j7-evm:~# uname -a
Linux j7-evm 4.19.94-g5a23bc00e0 #1 SMP PREEMPT Mon Feb 17 09:01:06 UTC 2020 aarch64 GNU/Linux
root@j7-evm:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: j721ecpbanalog [j721e-cpb-analog], device 0: cpb pcm3168a Playback pcm3168a-dac-0 [cpb pcm3168a Playback pcm3168a-dac-0]
Subdevices: 1/1
Subdevice #0: subdevice #0