Tutorial [Info] FriendlyARM PCM5102A-Hat with NanoPi Neo under mainline 4.x.x and dev 5.x.x

[FelSM]

"I'm new to using Linux on embedded systems and I've been trying to follow various examples in the forum to enable I2S, but I haven't had satisfactory results. I attempted to perform the steps described, enabling the PCM5102, but when I run 'arecord', I get the following error: 'arecord: main:830: audio open error: No such file or directory'.

I'm running Armbian 23.8.1 with Linux Kernel 5.10.4 on a Banana Pi M2 Zero. I have a PCM1807, which I configure through SPI to send I2S data to GPIO PA20 on the BPI. After successfully capturing the audio, I would like to send it via I2S through GPIO PA21 to another stage. Could someone please guide me on how to configure these ports and the ADC?"

[RaymondDay]

This starts to mess up on me when I try and install it. When I get to this command:

 

dtc -I dts -O dtb /boot/dtb/sun8i-h3-nanopi-neo.dts -o /boot/dtb/sun8i-h3-nanopi-neo.dtb_I2S_okay

 

It list lost of Warning (gpios_property)

 

Don't want to paste all the lines in here so I will just do one.

 

/boot/dtb/sun8i-h3-nanopi-neo.dts:1608.3-33: Warning (gpios_property): /gpio-regulator:gpios: cell 0 is not a phandle reference

 

That's the last line out of like 100 or so.

 

So I try and do the next command it just get this:

root@nanopineo:~# copy sun8i-h3-I2S-out.dts -->  /home/guido/
-bash: /home/guido/: Is a directory
root@nanopineo:~# ls
root@nanopineo:~#

 

Here is a uname -a if that will help:

 

root@nanopineo:~# uname -a
Linux nanopineo 6.6.44-current-sunxi #1 SMP Sat Aug  3 06:54:42 UTC 2024 armv7l armv7l armv7l GNU/Linux
root@nanopineo:~#

I want to get this sound working. I had it working on a older one but it stop booting and that was over a year ago. To hard to fix so I though I start over.

 

Hope some one can help.