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@xxxxxxxxx>
Cc: Chris Healy <cphealy@xxxxxxxxx>
Cc: Fabio Estevam <festevam@xxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
arch/arm/boot/dts/vf610-zii-cfu1.dts | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/vf610-zii-cfu1.dts b/arch/arm/boot/dts/vf610-zii-cfu1.dts
index 28732249cfc0..ce1920c052fc 100644
--- 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 {
--
2.21.0
