| From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 56/92] ARM: dts: OMAP3-N900: Add microphone bias voltages | Date | Tue, 26 May 2015 08:41:00 -0700 |
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3.19.8-ckt1 -stable review patch. If anyone has any objections, please let me know.
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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: Kamal Mostafa <kamal@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 b550c41..f7858f5 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -478,6 +478,8 @@ DRVDD-supply = <&vmmc2>; IOVDD-supply = <&vio>; DVDD-supply = <&vio>; + + ai3x-micbias-vg = <1>; }; tlv320aic3x_aux: tlv320aic3x@19 { @@ -489,6 +491,8 @@ DRVDD-supply = <&vmmc2>; IOVDD-supply = <&vio>; DVDD-supply = <&vio>; + + ai3x-micbias-vg = <2>; }; tsl2563: tsl2563@29 { -- 1.9.1
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