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Date:   Thu, 29 Mar 2018 17:46:00 +0200
From:   Sebastian Reichel <sebastian.reichel@collabora.co.uk>
To:     Tony Lindgren <tony@atomide.com>
Cc:     Mark Brown <broonie@kernel.org>, Pavel Machek <pavel@ucw.cz>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Lee Jones <lee.jones@linaro.org>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>, alsa-devel@alsa-project.org,
        linux-omap@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, kernel@collabora.com,
        Dan Williams <dcbw@redhat.com>
Subject: Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts:
 omap4-droid4: add soundcard
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Hi,

On Thu, Mar 29, 2018 at 06:59:04AM -0700, Tony Lindgren wrote:
> > I think cpcap is always the clock and frame master, but I think
> > mdm6600 is the remote side and OMAP is not involved at all.
>=20
> OK. So could it be just an alsamixer on/off toggle then for
> "Modem" or something similar?

I think so. We might want to have an "Mode" enum instead, though.
That can be extended, once we unlock the other modes (bluetooth,
bluetooth call).

> > > Then using the n_gsm ts 27.010 uart mux, I dial:
> > >=20
> > > ./ngsm-rw 1 "AT+CFUN=3D1"		# connect to network
> > > U0001+CFUN:OK
> > > ./ngsm-rw 2 "AT+CMUT=3D0"		# unmute speaker over ch2, do this over qm=
i?
> > > U0001+CMUT:OK
> > > ./ngsm-rw 1 "ATD#123"		# dial number
> > > U0001D:OK
>=20
> There's a typo above, it should be just ATD123 where 123 is the
> number.
>=20
> I was just doing few test calls to robots. Payback time for all
> the robocalls, you know! :)
>
> > > And I do hear a voice talking over the speakerphone :) Sorry have not=
 tested the
> > > mic yet..
>=20
> 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.

-- Sebastian

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