linux-kernel - Re: [PATCHv2 0/6] Motorola Droid 4 Audio Support

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Date:   Mon, 17 Jul 2017 16:13:47 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.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
Subject: Re: [PATCHv2 0/6] Motorola Droid 4 Audio Support

Hi,

On Mon, Jul 17, 2017 at 03:17:10AM -0700, Tony Lindgren wrote:
> * Sebastian Reichel <sebastian.reichel@...labora.co.uk> [170717 03:13]:
> > On Mon, Jul 17, 2017 at 02:29:04AM -0700, Tony Lindgren wrote:
> > > * Sebastian Reichel <sebastian.reichel@...labora.co.uk> [170712 08:19]:
> > > >  * Switch from simple-audio-card to audio-graph-card
> > > 
> > > Gave this a quick try against v4.13-rc1 with SND_AUDIO_GRAPH_CARD
> > > enabled as a loadable module. However loading it oopses for me,
> > > see below. Maybe some dependencies are missing?
> > 
> > It works for me on top of v4.13-rc1 (my kernel is monolithic).
> > Looking at the stacktrace it seems to be a bug in audio graph
> > card and not in the codec driver.
> 
> OK I do also have:
> 
> CONFIG_DEBUG_LOCKDEP=y
> CONFIG_DEBUG_ATOMIC_SLEEP=y

I added those and I do not get a stacktrace for anything sound
related and audio works. I noticed one issue in dapm routing,
that I accidently added. That will be fixed in PATCHv3, but its
in untestable path anyways (EXT capture, probably FM radio is
connected to EXT).

-- Sebastian

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