[alsa-devel] Baytrail based HDMI Stick Orbsmart AW-01: No sound

[Michael Leun]

Hi,

I've an baytrail / Z3735F based HDMI Stick "Orbsmart AW-01", but sound
does not work.

I'm a little lost finding out what is missing / required to make it
work.

I compiled an 4.3-rc2 vanilla kernel with hopefully each and everything
turned on relating soc/sound.

In dmesg I get:

[...]
[    4.252522] sst-acpi 80860F28:00: No matching ASoC machine driver found
[    5.863177] intel_sst_acpi 80860F28:00: No matching machine driver found
[...]

It looks like there is rt5640 based sound recognized:

[ml at orb ~]$ find /sys -name '*5640*' -print
/sys/bus/i2c/drivers/rt5640
/sys/bus/acpi/devices/10EC5640:00
/sys/bus/acpi/devices/10EC5640:01
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/80860F41:01/10EC5640:00
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/80860F41:01/10EC5640:01
find: "/sys/kernel/debug": Keine Berechtigung
/sys/module/i2c_core/holders/snd_soc_rt5640
/sys/module/snd_soc_rl6231/holders/snd_soc_rt5640
/sys/module/snd_soc_rt5640
/sys/module/snd_soc_rt5640/drivers/i2c:rt5640
/sys/module/snd_soc_core/holders/snd_soc_rt5640
/sys/module/regmap_i2c/holders/snd_soc_rt5640
/sys/module/snd_pcm/holders/snd_soc_rt5640
[ml at orb ~]$

This are the sound related modules loaded:

[ml at orb ~]$ lsmod|grep snd
snd_intel_sst_acpi     16384  0
snd_intel_sst_core     65536  1 snd_intel_sst_acpi
snd_soc_rt5640        106496  0
snd_soc_sst_mfld_platform    73728  1 snd_intel_sst_core
snd_soc_rl6231         16384  1 snd_soc_rt5640
snd_soc_core          155648  2 snd_soc_rt5640,snd_soc_sst_mfld_platform
snd_compress           20480  1 snd_soc_core
regmap_i2c             16384  1 snd_soc_rt5640
snd_pcm_dmaengine      16384  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
snd_pcm                86016  4 snd_soc_rt5640,snd_soc_core,snd_soc_sst_mfld_platform,snd_pcm_dmaengine
snd_timer              28672  1 snd_pcm
snd                    65536  5 snd_soc_core,snd_timer,snd_pcm,snd_soc_sst_mfld_platform,snd_compress
soundcore              16384  1 snd
i2c_core               49152  7 drm,i915,snd_soc_rt5640,i2c_designware_platform,regmap_i2c,drm_kms_helper,i2c_algo_bit
snd_soc_sst_acpi       16384  0
[ml at orb ~]$ 

-- 
Best Regards,

Michael Leun