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

commit 1819e3034ee26ffadc71880064ed8b8e7d74f52c upstream.

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.

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>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 1fe45d1f75ec8d52aa8dd59a1e344a931fc32576..2b061fee8a20f7b38cbc92b9514901857fe6ee8e 100644 (file)
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -437,6 +437,8 @@
                DRVDD-supply = <&vmmc2>;
                IOVDD-supply = <&vio>;
                DVDD-supply = <&vio>;
+
+               ai3x-micbias-vg = <1>;
        };
 
        tlv320aic3x_aux: tlv320aic3x@19 {
@@ -448,6 +450,8 @@
                DRVDD-supply = <&vmmc2>;
                IOVDD-supply = <&vio>;
                DVDD-supply = <&vio>;
+
+               ai3x-micbias-vg = <2>;
        };
 
        tsl2563: tsl2563@29 {