linux-kernel - Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts: omap4-droid4: add soundcard

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Date:   Thu, 29 Mar 2018 09:41:13 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Pavel Machek <pavel@....cz>
Cc:     Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Dan Williams <dcbw@...hat.com>
Subject: Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts:
 omap4-droid4: add soundcard

* Pavel Machek <pavel@....cz> [180329 16:38]:
> Hi!
> 
> > > > > And I do hear a voice talking over the speakerphone :) Sorry have not tested the
> > > > > mic yet..
> > > 
> > > And calling a person I can hear the other end but the mic is
> > > not working. So maybe I need to tweak the alsamixer settings
> > > too for mic?
> > 
> > Your override kills most settings from alsamixer. You can try to
> > just override CPCAP_REG_VAUDIOC, CPCAP_REG_CC and CPCAP_REG_CDI
> > and setup everything else with alsamixer.
> 
> I tried that, and could not get it to work; will try some more.
> 
> Is there easy way to get the register dump?

For mainline kernel:

# cat /sys/kernel/debug/regmap/spi0.0/registers

For Android v3.0.8 kernel, see cpcaprw on github.

Regards,

Tony