Date: Mon, 13 Jul 2015 23:57:45 -0700
From: Tony Lindgren <tony@atomide.com>
To: Arun Bharadwaj <arun@gumstix.com>
Cc: =?utf-8?Q?Beno=C3=AEt?= Cousson <bcousson@baylibre.com>,
        Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        Russell King <linux@arm.linux.org.uk>, linux-omap@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, Adam YH Lee <adam.yh.lee@gmail.com>,
        Ash Charles <ashcharles@gmail.com>
Subject: Re: [PATCH 1/3] ARM: dts: Correct audio input route & set mic bias
Message-ID: <20150714065745.GE17550@atomide.com>
References: <1433441299-18887-1-git-send-email-arun@gumstix.com>
 <1433441299-18887-2-git-send-email-arun@gumstix.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1433441299-18887-2-git-send-email-arun@gumstix.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1573
Lines: 54

* Arun Bharadwaj <arun@gumstix.com> [150604 11:10]:
> From: Adam YH Lee <adam.yh.lee@gmail.com>
> 
> Audio-in was incorrectly routed to Line In. It should be Mic3L as per
> schematic.
> 
> Using mic-bias voltage at 2.0v (<0x1>) does not work for some reason. There
> is no voltage seen on micbias (R127). Mic-bias voltage of 2.5v (<0x2>) works.
> I see voltage of 2.475v across GND and micbias.
> 
> With these changes, I can record audio with a pair of proliferate TRRS earbuds.
> 
> Signed-off-by: Ash Charles <ashcharles@gmail.com>

Can you please repost this with after checking From
and Signed-off-by?

Regards,

Tony

> ---
>  arch/arm/boot/dts/am335x-pepper.dts | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts
> index 0d35ab6..473d8ee 100644
> --- a/arch/arm/boot/dts/am335x-pepper.dts
> +++ b/arch/arm/boot/dts/am335x-pepper.dts
> @@ -74,6 +74,7 @@
>  	audio_codec: tlv320aic3106@1b {
>  		compatible = "ti,tlv320aic3106";
>  		reg = <0x1b>;
> +		ai3x-micbias-vg = <0x2>;
>  	};
>  
>  	accel: lis331dlh@1d {
> @@ -153,7 +154,7 @@
>  	ti,audio-routing =
>  		"Headphone Jack",	"HPLOUT",
>  		"Headphone Jack",	"HPROUT",
> -		"LINE1L",		"Line In";
> +		"MIC3L",		"Mic3L Switch";
>  };
>  
>  &mcasp0 {
> -- 
> 2.1.4
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/