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    Subject[PATCH 3.16.y-ckt 087/129] ARM: dts: OMAP3-N900: Add microphone bias voltages
    Date
    3.16.7-ckt12 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Pavel Machek <pavel@ucw.cz>

    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>
    ---
    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 1fe45d1f75ec..2b061fee8a20 100644
    --- 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 {

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