ARM: dts: vf610-zii-cfu1: Add voltage monitor DT node

Add a DT node for various voltage supply rails connected to SoC's ADC
for voltage monitoring purposes.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/vf610-zii-cfu1.dts b/arch/arm/boot/dts/vf610-zii-cfu1.dts
index 28732249cfc0c93f4796131679d0b956c44b99af..ce1920c052fc546c3ff7c88f155fec7b7266139b 100644 (file)
--- a/arch/arm/boot/dts/vf610-zii-cfu1.dts
+++ b/arch/arm/boot/dts/vf610-zii-cfu1.dts
@@ -71,6 +71,14 @@
                los-gpio = <&gpio4 4 GPIO_ACTIVE_HIGH>;
                tx-disable-gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
        };
+
+       supply-voltage-monitor {
+               compatible = "iio-hwmon";
+               io-channels = <&adc0 8>, /* 28VDC_IN */
+                             <&adc0 9>, /* +3.3V    */
+                             <&adc1 8>, /* VCC_1V5  */
+                             <&adc1 9>; /* VCC_1V2  */
+       };
 };
 
 &adc0 {