[PATCH 0/4] MT8195 Acer Tomato - Audio support

[AngeloGioacchino Del Regno]

Il 07/10/22 10:52, AngeloGioacchino Del Regno ha scritto:
> Il 07/10/22 10:42, Chen-Yu Tsai ha scritto:
>> Hi,
>>
>> On Thu, Sep 22, 2022 at 5:49 PM AngeloGioacchino Del Regno
>> <angelogioacchino.delregno at collabora.com> wrote:
>>>
>>> This series enables full support for audio, with DSP, on the Cherry
>>> Chromebooks.
>>> Related ALSA UCM2 configuration was already merged in its upstream
>>> repository [1]: this is fully tested and working as-is since all of
>>> the required fixes for MT8195 SOF drivers were picked and are present
>>> since `next-20220908`.
>>>
>>> [1]: 
>>> https://github.com/alsa-project/alsa-ucm-conf/commit/a59c3b1a57de8eb424c4f754bb031265e856260e
>>
>> While trying this patch, I get the following error:
>>
>> # modprobe mt8195-mt6359
>> [   44.985107] mt6359-sound mt6359-sound: ASoC: sink widget AIF1TX overwritten
>> [   44.994393] dmic-codec dmic-codec: GPIO lookup for consumer dmicen
>> [   45.000636] dmic-codec dmic-codec: using device tree for GPIO lookup
>> [   45.007165] of_get_named_gpiod_flags: can't parse 'dmicen-gpios'
>> property of node '/dmic-codec[0]'
>> [   45.016177] of_get_named_gpiod_flags: can't parse 'dmicen-gpio'
>> property of node '/dmic-codec[0]'
>> [   45.025084] dmic-codec dmic-codec: using lookup tables for GPIO lookup
>> [   45.031666] dmic-codec dmic-codec: No GPIO consumer dmicen found
>> [   45.041434] sof-audio-of-mt8195 10803000.dsp: Topology: ABI 3:22:1
>> Kernel ABI 3:23:0
>> [   45.050185] mt8195_mt6359 mt8195-sound: ASoC: Parent card not yet
>> available, widget card binding deferred
>> [   45.060566] sof-audio-of-mt8195 10803000.dsp: ipc tx error for
>> 0x30010000 (msg/reply size: 96/20): -22
>> [   45.069965] sof-audio-of-mt8195 10803000.dsp: Failed to setup widget AFE3.IN
>> [   45.077575] sof-audio-of-mt8195 10803000.dsp: error: tplg component
>> load failed -22
>> [   45.085291] sof-audio-of-mt8195 10803000.dsp: error: failed to load
>> DSP topology -22
>> [   45.093062] sof-audio-of-mt8195 10803000.dsp: ASoC: error at
>> snd_soc_component_probe on 10803000.dsp: -22
>> [   45.102880] mt8195_mt6359 mt8195-sound: ASoC: failed to instantiate card -22
>> [   45.123915] mt8195_mt6359: probe of mt8195-sound failed with error -22
>>
>> Any ideas?
> 
> We have to recheck if the firmware that was sent upstream is the right one for
> Tomato's dts topology variant, I think.
> That's surely a firmware issue that you're seeing, anyway.
> 
> sof-mt8195.ri
> 

Update to this: what you were seeing was not related to this series, which is
entirely correct, but due to an ABI breakage in SoundOpenFirmware.

After I reported that to SOF, a commit [1] was pushed to fix the same - now this
series is fully working, as expected.

[1]: 
https://lore.kernel.org/alsa-devel/20221117232120.112639-1-pierre-louis.bossart@linux.intel.com/T/#u

Chen-Yu, would you please test this again with the aforementioned commit?
Works here, should work for you as well now :-)

Cheers!
Angelo