AINCOM should actually be a supply. If present and it has a non-zero
voltage, the pseudo-differential channels are configured as single-ended
with an offset. Otherwise, they are configured as differential channels
between AINx and AINCOM pins.
Signed-off-by: Alisa-Dariana Roman <alisa.roman@xxxxxxxxxx>
---
.../devicetree/bindings/iio/adc/adi,ad7192.yaml | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
index 16def2985ab4..ba506af3b73e 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -41,6 +41,14 @@ properties:
interrupts:
maxItems: 1
+ aincom-supply:
+ description: |
+ Optional AINCOM voltage supply. If present and it has a non-zero voltage,
+ the pseudo-differential channels are configured as single-ended channels
+ with the AINCOM voltage as offset. Otherwise, the pseudo-differential
+ channels are configured as differential channels: voltageX-voltage0, with
+ AINCOM as the negative input.
+
dvdd-supply:
description: DVdd voltage supply
@@ -117,6 +125,7 @@ examples:
clock-names = "mclk";
interrupts = <25 0x2>;
interrupt-parent = <&gpio>;
+ aincom-supply = <&aincom>;
dvdd-supply = <&dvdd>;
avdd-supply = <&avdd>;
vref-supply = <&vref>;
--
2.34.1
