linux-kernel - Re: [PATCH 2/2] ASoC: codecs: Add da7218 codec driver

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Message-ID: <20151108103429.GC6746@sirena.org.uk>
Date:	Sun, 8 Nov 2015 10:34:29 +0000
From:	Mark Brown <broonie@...nel.org>
To:	"Opensource [Adam Thomson]" <Adam.Thomson.Opensource@...semi.com>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Support Opensource <Support.Opensource@...semi.com>
Subject: Re: [PATCH 2/2] ASoC: codecs: Add da7218 codec driver

On Fri, Nov 06, 2015 at 01:17:28PM +0000, Opensource [Adam Thomson] wrote:
> On November 6, 2015 11:55, Mark Brown wrote:

> > Hang on, is this just recording a DC value with the ADC and then looking
> > at that?

> The RMS of the Mic signal is taken and compared to the trigger level set. If
> it's above that level then an IRQ is raised.

What I'm trying to figure out here is if this depends on the audio
routing at runtime or if it's got dedicated configuration?

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