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>
diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts
index da52ed7..7dd1d6e 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 = <®_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