From 64436ff6675df55ed61ff2d8aac8156ce0294826 Mon Sep 17 00:00:00 2001
From: Fugang Duan <B38611@freescale.com>
Date: Fri, 21 Feb 2014 13:24:16 +0800
Subject: ARM: dts: vf610-twr: Add ADC support

vf610 has two ADC controllers, and vf610-twr board ADC0_SE5 pin connect
to sliding rheostat for ADC test, other ADC pins connect to connectors for
future use.

Add support for ADC0_SE5.

CC: Jonathan Cameron <jic23@kernel.org>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: Peter Meerwald <pmeerw@pmeerw.net>
CC: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/vf610-twr.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'arch/arm/boot/dts/vf610-twr.dts')

diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts
index da52ed7eefa2..7dd1d6ede525 100644
--- a/arch/arm/boot/dts/vf610-twr.dts
+++ b/arch/arm/boot/dts/vf610-twr.dts
@@ -47,6 +47,14 @@
 			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
 		};
+
+		reg_vcc_3v3_mcu: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "vcc_3v3_mcu";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+		};
 	};
 
 	sound {
@@ -79,6 +87,13 @@
 	};
 };
 
+&adc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc0_ad5>;
+	vref-supply = <&reg_vcc_3v3_mcu>;
+	status = "okay";
+};
+
 &dspi0 {
 	bus-num = <0>;
 	pinctrl-names = "default";
@@ -128,6 +143,12 @@
 
 &iomuxc {
 	vf610-twr {
+		pinctrl_adc0_ad5: adc0ad5grp {
+			fsl,pins = <
+				VF610_PAD_PTC30__ADC0_SE5		0xa1
+			>;
+		};
+
 		pinctrl_dspi0: dspi0grp {
 			fsl,pins = <
 				VF610_PAD_PTB19__DSPI0_CS0		0x1182
-- 
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