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Message-Id: <1432654896-28478-57-git-send-email-kamal@canonical.com>
Date:	Tue, 26 May 2015 08:41:00 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Pavel Machek <pavel@....cz>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	Tony Lindgren <tony@...mide.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 56/92] ARM: dts: OMAP3-N900: Add microphone bias voltages

3.19.8-ckt1 -stable review patch.  If anyone has any objections, please let me know.

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

From: Pavel Machek <pavel@....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@....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@...mer.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.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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