[PATCH 1/3] ARM: dts: Correct audio input route & set mic bias
From: tony@atomide.com (Tony Lindgren)
Date: 2015-07-14 06:57:52
Also in:
linux-devicetree, linux-omap, lkml
* Arun Bharadwaj [off-list ref] [150604 11:10]:
From: Adam YH Lee <redacted> 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 <redacted>
Can you please repost this with after checking From and Signed-off-by? Regards, Tony
quoted hunk ↗ jump to hunk
--- 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 at 1b { compatible = "ti,tlv320aic3106"; reg = <0x1b>; + ai3x-micbias-vg = <0x2>; }; accel: lis331dlh at 1d {@@ -153,7 +154,7 @@ ti,audio-routing = "Headphone Jack", "HPLOUT", "Headphone Jack", "HPROUT", - "LINE1L", "Line In"; + "MIC3L", "Mic3L Switch"; }; &mcasp0 {-- 2.1.4