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Date:   Fri, 23 Mar 2018 11:30:06 +0100
From:   Sebastian Reichel <sebastian.reichel@collabora.co.uk>
To:     Pavel Machek <pavel@ucw.cz>
Cc:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Tony Lindgren <tony@atomide.com>,
        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
Subject: Re: [PATCHv5,5/5] ARM: dts: omap4-droid4: add soundcard
Message-ID: <20180323103006.alymgb3ywftb4gek@earth.universe>
References: <20180223200254.25685-6-sebastian.reichel@collabora.co.uk>
 <20180322204804.GA26871@amd>
 <20180322234832.o24ut5ahon46mdu4@earth.universe>
 <20180323100930.GA21644@amd>
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Hi,

On Fri, Mar 23, 2018 at 11:09:30AM +0100, Pavel Machek wrote:
> Hi!
>=20
> > > # CONFIG_SND_OMAP_SOC_RX51 is not set
> > > # CONFIG_SND_OMAP_SOC_N9 is not set
> > > CONFIG_SND_OMAP_SOC_OMAP_TWL4030=3Dy
> > > CONFIG_SND_OMAP_SOC_OMAP_ABE_TWL6040=3Dy
> >=20
> > That's not needed (but does not hurt). The Droid 4
> > has no TWL companion chip and uses CPCAP instead.
>=20
> Aha, thanks. I was doing wild experiments to get something that
> boots... I turned them off.
>=20
> > > Any ideas?
> >=20
> > You probably did not enable the soundcard driver, that binds against
> > "audio-graph-card" compatible and connects the codec driver with the
> > SoC driver: CONFIG_SND_AUDIO_GRAPH_CARD
>=20
> Ok, that certainly changed things; I am now getting this:
>=20
> Mar 23 08:39:17 devuan kernel: [   11.633605] asoc-audio-graph-card sound=
card: GPIO lookup for
>  consumer pa
> Mar 23 08:39:17 devuan kernel: [   11.644958] asoc-audio-graph-card sound=
card: using device tr
> ee for GPIO lookup
> Mar 23 08:39:17 devuan kernel: [   11.656677] of_get_named_gpiod_flags: c=
an't parse 'pa-gpios'
>  property of node '/soundcard[0]'
> Mar 23 08:39:17 devuan kernel: [   11.669738] of_get_named_gpiod_flags: c=
an't parse 'pa-gpio'=20
> property of node '/soundcard[0]'
> Mar 23 08:39:17 devuan kernel: [   11.682617] asoc-audio-graph-card sound=
card: using lookup ta
> bles for GPIO lookup
> Mar 23 08:39:17 devuan kernel: [   11.694427] asoc-audio-graph-card sound=
card: lookup for GPIO
>  pa failed

That's not an error, but just some debug messages. Consider
disabling CONFIG_DEBUG_GPIO to get rid of them.

> Indeed the dts does not seem to contain any gpios

It's optional and does not exist on Droid 4.

>         soundcard {
>                 compatible =3D "audio-graph-card";
>                 label =3D "Droid 4 Audio";
>=20
>                 simple-graph-card,widgets =3D
>                         "Speaker", "Earpiece",
>                         "Speaker", "Loudspeaker",
> 	                "Headphone", "Headphone Jack",
> 	                "Microphone", "Internal Mic";
>=20
>                 simple-graph-card,routing =3D
> 	                "Earpiece", "EP",
> 		        "Loudspeaker", "SPKR",
>                         "Headphone Jack", "HSL",
>                         "Headphone Jack", "HSR",
> 	                "MICR", "Internal Mic";
>=20
>                 dais =3D <&mcbsp2_port>, <&mcbsp3_port>;
> 	};
>=20
> Any more ideas? :-)

Make sure, that the device was not proped properly (cat
/proc/asound/cards) and post the real error? :)

-- Sebastian

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