linux-kernel - Re: Nokia N900: mixers changed between 4.9 and 4.10-rc3, no longer can use in-call speaker

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Date:   Sun, 15 Jan 2017 21:08:12 +0200
From:   Jarkko Nikula <jarkko.nikula@...mer.com>
To:     Pavel Machek <pavel@....cz>,
        Pali Rohár <pali.rohar@...il.com>
Cc:     sre@...nel.org, kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        peter.ujfalusi@...com, alsa-devel@...a-project.org,
        helen.koike@...labora.co.uk, lars@...afoo.de, broonie@...nel.org
Subject: Re: Nokia N900: mixers changed between 4.9 and 4.10-rc3, no longer
 can use in-call speaker

On 01/15/2017 12:05 PM, Pavel Machek wrote:
>>> So regression seems to be between v4.9 and v4.10. Any ideas?
>>
>> Interesting... seems there are no sound relevant changes after v4.9.
>>
>> Looks like there are only three commits after v4.9 for sound/soc which 
>> are built for Nokia N900:
>>
>> e411b0b5eb9b65257a050eac333d181d6e00e2c6
>> e7aa450fe17890e59db7d3c2d8eff5b6b41fc531
>> 63c3194b82530bd71fd49db84eb7ab656b8d404a
>>
>> Maybe something not related to sound/soc could broke it?
> 
> Lets see.
> 
> a9042defa29a01cc538b742eab047848e9b5ae14 -- works ok.
> ce38207f161513ee3d2bd3860489f07ebe65bc78 --
> 
> alsactl: set_control:1328: failed to obtain info for control #229 (No
> such file or directory)
> 
I'm unable to test older kernels at the moment since modules don't load
by some reason (bluetooth: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err
0)). Probably some recent regression in my debian/testing installation
since the same configs were working before.

However v4.9.4 works and with it I can see there is an issue with these
aic3x controls:

amixer: Unable to find simple control 'Left DAC_L1 Mixer Line',0



amixer: Unable to find simple control 'Right DAC_R1 Mixer Line',0


At quick look I don't see why above commits could cause it. Maybe
regression happened earlier between v4.6 and v4.9?

-- 
Jarkko