ARM: dts: OMAP3-N900: Add microphone bias voltages

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@vger.kernel.org # v3.16+
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[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@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index a29315833ecd..5c16145920ea 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -498,6 +498,8 @@
                 DRVDD-supply = <&vmmc2>;
                 IOVDD-supply = <&vio>;
                 DVDD-supply = <&vio>;
+
+                ai3x-micbias-vg = <1>;
         };
 
         tlv320aic3x_aux: tlv320aic3x@19 {
@@ -509,6 +511,8 @@
                 DRVDD-supply = <&vmmc2>;
                 IOVDD-supply = <&vio>;
                 DVDD-supply = <&vio>;
+
+                ai3x-micbias-vg = <2>;
         };
 
         tsl2563: tsl2563@29 {