[Letux-kernel] AESS driver

[H. Nikolaus Schaller]

Hi Marek,

> Am 05.07.2018 um 16:31 schrieb Belisko Marek <marek.belisko at gmail.com>:
> 
> Moving forward a bit:
> dmesg | grep -i aess
> [    6.698601] aess 401f1000.aess: ASoC: dai register 401f1000.aess #6
> [    6.722268] aess 401f1000.aess: ASoC: invalid header size for type
> 0 at offset 0x0 size 0x1a5e8.
> [    6.778381] aess 401f1000.aess: request for AESS FW failed -22
> [    6.784506] aess 401f1000.aess: ASoC: failed to probe component -22
> 
> looks like I need to grab some other FW. Everything (wip) pushed to:
> work-aess-4.17.3
> 
> BR,
> 
> marek
> On Thu, Jul 5, 2018 at 3:26 PM Belisko Marek <marek.belisko at gmail.com> wrote:
>> 
>> Hi Nikolaus,
>> 
>> yes it needs more patches from ti, working on it.
>> 
>> BR,
>> 
>> marek
>> On Thu, Jul 5, 2018 at 3:22 PM H. Nikolaus Schaller <hns at goldelico.com> wrote:
>>> 
>>> 
>>>> Am 05.07.2018 um 10:53 schrieb Belisko Marek <marek.belisko at gmail.com>:
>>>> 
>>>> Hi Nikouals,
>>>> 
>>>> on my aess branch when added compatible to dts I cannot boot kernel at all:
>>>> [    0.000000] Booting Linux on physical CPU 0x0
>>>> [    0.000000] Linux version 4.17.0-letux+ (marek at mbuntu) (gcc version

I have tried to compile, which went fine, and I was able to boot.
But I did not have installed the firmware...

Some observations:
1. the kernel reports to be letux-4.17.0 and not 4.17.3

root at letux:~# uname -a
Linux letux 4.17.0-letux+ #2535 SMP PREEMPT Mon Jul 9 17:32:57 CEST 2018 armv7l GNU/Linux
root at letux:~# 

I'd suggest to merge/rebase on top of letux-4.17.3
(http://git.goldelico.com/?p=letux-kernel.git;a=shortlog;h=refs/heads/letux-4.17.3)
because that version includes some significant fixes and this may be part of your trouble.

2. aess driver is loaded (but not firmware)

root at letux:~# dmesg|fgrep aess
[    6.044004] omap-abe-twl6040 sound: Direct firmware load for omap_aess-adfw.bin failed with error -2
[    6.095322] omap-abe-twl6040 sound: Failed to load firmware omap_aess-adfw.bin: -2
root at letux:~# 

root at letux:~# lsmod|fgrep abe 
snd_soc_omap_abe_twl6040    20480  0 
snd_soc_twl6040        28672  1 snd_soc_omap_abe_twl6040
snd_soc_omap_mcbsp     24576  1 snd_soc_omap_abe_twl6040
snd_soc_omap_aess      61440  2 snd_soc_omap_abe_twl6040,snd_soc_omap_mcpdm
root at letux:~# 

3. aplay does only report the HDMI encoder

root at letux:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: H58040000encode [HDMI 58040000.encoder], device 0: HDMI 58040000.encoder snd-soc-dummy-dai-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
root at letux:~#

I hope this helps to move forwards.

BR,
Nikolaus