[Letux-kernel] AESS driver

H. Nikolaus Schaller hns at goldelico.com
Mon Jul 9 21:56:48 CEST 2018


> Am 09.07.2018 um 20:36 schrieb Belisko Marek <marek.belisko at gmail.com>:
> 
> Hi Nikolaus,
> On Mon, Jul 9, 2018 at 8:08 PM H. Nikolaus Schaller <hns at goldelico.com> wrote:
>> 
>> 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
> OK this is minor stuff I think.

Well, for example, letux-4.17.0 does not have our GAB out-of-bounds write fix.
So this may trigger unexpected side-effects. And there were also other minor
issues.

> My problem now is that during FW
> loading I get an parse error. So IMO it looks like FW is not correct.
> I need to dig to the code in soc-topology.c what it is parsing and try
> to find such areas in actual firmware.

Ok, fine that you have a traceable symptom!

BR,
Nikolaus


>> 
>> 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
>> 
> 
> BR,
> 
> marek
> 
> -- 
> as simple and primitive as possible
> -------------------------------------------------
> Marek Belisko - OPEN-NANDRA
> Freelance Developer
> 
> Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
> Tel: +421 915 052 184
> skype: marekwhite
> twitter: #opennandra
> web: http://open-nandra.com



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