From: Pavel Machek <pavel@xxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 1819e3034ee26ffadc71880064ed8b8e7d74f52c ]
N900 audio recording needs that codec provides bias voltage for integrated
digital microphone and headset microphone depending which one is used.
Digital microphone uses 2 V bias and it comes from the codec A part. Codec
B part drives the headset microphone bias and that is set to 2.5 V.
Cc: stable@xxxxxxxxxxxxxxx # v3.16+
Signed-off-by: Pavel Machek <pavel@xxxxxx>
[Jarkko: Headset mic bias changed to 2 (2.5 V) as it was before commit
e2e8bfdf6157 ("ASoC: tlv320aic3x: Convert mic bias to a supply widget")]
Signed-off-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxx>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
arch/arm/boot/dts/omap3-n900.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index bc82a12..ae630a9 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -445,6 +445,8 @@
DRVDD-supply = <&vmmc2>;
IOVDD-supply = <&vio>;
DVDD-supply = <&vio>;
+
+ ai3x-micbias-vg = <1>;
};
tlv320aic3x_aux: tlv320aic3x@19 {
@@ -456,6 +458,8 @@
DRVDD-supply = <&vmmc2>;
IOVDD-supply = <&vio>;
DVDD-supply = <&vio>;
+
+ ai3x-micbias-vg = <2>;
};
tsl2563: tsl2563@29 {
--
2.1.0
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