[alsa-devel] Applied "ASoC: Intel: add bytct-rt5651 machine driver" to the asoc tree

[Pietro]

Hi,

Sorry for the wrong information:
the 2 DSDTs were decompiled using different iasl versions (20140828 for Android vs 20150717 for Linux), giving apparently different results (the functions were decoded differently, but the keys were the same).

The tablet is a dual boot Windows+Android (Surely based on AndroidIA, with a Patched gmin kernel... Obviously the sources were not provided by the manifacturer).

I've made some tests using both the firmware included in Android, and the upstream ones, with no apparent results (Always slow Audio).

But when you suggested me to use the fw_sst_22a8.bin I was trying to load the Android one, giving me load errors. Now I've tried the upstream one and it works with correct timing settings (!!)

Then I've tried to restore the 4.5.2 stock bytcr_rt5651.c, but this gave me inconsistent playback: The speed was right, but there were continue audio artifacts (like the ones given by a bad resampler, to give you an idea).
Using the patched driver, following your suggestion (patching it exatcly as I've wrote in the past E-Mails), solved this issue, so now the Audio is correctly played.

In the following days I'll make some tests (For example audio recording, switch between Headset and Speakers Etc.) and let you know if I'll find other issues.

Thanks for your continuous support, I've really appreciated it.

Pietro


On Wednesday 01 June 2016 10:13:17 Pierre-Louis Bossart wrote:
> On 6/1/16 3:38 AM, Pietro wrote:
> > Hi,
> >
> >
> >
> > The Kernel error messages should be related to the Intel DRM graphics,
> > so I don't care about them (at least for now).
> >
> >
> >
> > Anyway I don't know if tese warning can in some way be related to my
> > problem:
> >
> >
> >
> > [ 9.565990] rt5651 i2c-10EC5651:00: ASoC: mux INL1 Mux has no paths
> >
> > [ 9.586586] rt5651 i2c-10EC5651:00: ASoC: mux INR1 Mux has no paths
> >
> > [ 9.586596] rt5651 i2c-10EC5651:00: ASoC: mux INL2 Mux has no paths
> >
> > [ 9.586601] rt5651 i2c-10EC5651:00: ASoC: mux INR2 Mux has no paths
> 
> probably the config is incorrect, I didn't enable capture in the UCM file
> 
> >
> > [ 12.646035] sst-mfld-platform sst-mfld-platform: Slot control:
> > codec_out tx interleaver slot 0 doesn't have DAPM widget!!!
> >
> > [ 12.649356] sst-mfld-platform sst-mfld-platform: Slot control:
> > codec_out tx interleaver slot 1 doesn't have DAPM widget!!!
> >
> > [ 12.652673] sst-mfld-platform sst-mfld-platform: Slot control:
> > codec_out tx interleaver slot 2 doesn't have DAPM widget!!!
> >
> > [ 12.656323] sst-mfld-platform sst-mfld-platform: Slot control:
> > codec_out tx interleaver slot 3 doesn't have DAPM widget!!!
> >
> > [ 12.659868] sst-mfld-platform sst-mfld-platform: Slot control: codec_in
> > rx deinterleaver codec_in0_0 doesn't have DAPM widget!!!
> >
> > [ 12.663456] sst-mfld-platform sst-mfld-platform: Slot control: codec_in
> > rx deinterleaver codec_in0_1 doesn't have DAPM widget!!!
> 
> this last warning is fixed upstream.
> 
> > For your convenience I've extracted the DSDT from Android and Linux,
> > because they seem to differ. Here they are:
> >
> >
> >
> > DSDT Linux: http://paste.ubuntu.com/16885538/
> >
> > DSDT Android: http://paste.ubuntu.com/16885557/
> 
> DSDT is OS independent so that doesn't make sense.
> Just to be clear, is this an Android tablet on which you are installing 
> ubuntu?
> And did you try to use the firmware from upstream or from the Android 
> distribution?
> 
>