Hello friends,
just short question - i2s do supported in mainline today for A20 (Lime2, Cubietruck, Banana etc...)?

 

BR,

Alex

Status matrix says yes, http://linux-sunxi.org/Linux_mainlining_effort#Status_Matrix . You need to add/enable the corresponding devicetree entries or overlays (not sure if they exist yet) ...

IIRC I2S is not available for Banana PI (not wired to GPIO), I think it's available for lime2

I was check this image Armbian_5.31_Lime2_Debian_jessie_next_4.11.5 for Line2, this build not have support the I2S interface

root@lime2:~# aplay -l
aplay: device_list:268: no soundcards found...
root@lime2:~# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)

root@lime2:~# lsmod
Module                  Size  Used by
cfg80211              352256  0
rfkill                 20480  1 cfg80211
evdev                  20480  1
at24                   16384  0
nvmem_sunxi_sid        16384  0
nvmem_core             16384  2 at24,nvmem_sunxi_sid
sun4i_ss               24576  0
uio_pdrv_genirq        16384  0
cpufreq_dt             16384  0
uio                    16384  1 uio_pdrv_genirq
bonding                90112  0
fuse                   69632  1
realtek                16384  1

 

8 minutes ago, alexparser said:

I was check this image Armbian_5.31_Lime2_Debian_jessie_next_4.11.5 for Line2, this build not have support the I2S interface

It supports I2S, but you need to write and activate a correct DT overlay.

Yes course, but DE FACTO this build not work with I2S.

p.s. I don't found way to resolve this problem.

7 hours ago, alexparser said:

Yes course, but DE FACTO this build not work with I2S.

p.s. I don't found way to resolve this problem.

AFAIK I2S works in this kernel, but its not enabled by default and we usually can't give more than usable hints - solving problems takes more effort, chunks of time - at least a tests on real hardware should be done, to suppress time wasted on future support. 

10 hours ago, alexparser said:

Yes course, but DE FACTO this build not work with I2S.

It works exactly like it should work on mainline. Since there is no onboard I2S codec on Lime2, I2S is disabled by default, and it needs Device Tree configuration to work (with a supported codec)

9 hours ago, Igor said:

AFAIK I2S works in this kernel, but its not enabled by default and we usually can't give more than usable hints - solving problems takes more effort, chunks of time - at least a tests on real hardware should be done, to suppress time wasted on future support. 

Technically, I'm ready to take on this job, I talk about image building and tests.

If I get detailed instructions.

1 minute ago, alexparser said:

I talk about image building and tests.

If I get detailed instructions.

You mean building whole image and kernel from scratch / sources? https://docs.armbian.com/Developer-Guide_Build-Preparation/

 

But for enabling this, you don't need that. Start here and follow: https://forum.armbian.com/index.php?/topic/379-learning-device-tree/ Do some search.

 

42 minutes ago, Igor said:

You mean building whole image and kernel from scratch / sources? https://docs.armbian.com/Developer-Guide_Build-Preparation/

 

But for enabling this, you don't need that. Start here and follow: https://forum.armbian.com/index.php?/topic/379-learning-device-tree/ Do some search.

 

Thanks a lot, I'll try to know how it work.
If I have more questions, I will request to help.