[PATCH v10 02/11] dt-bindings: iio: adc: hx711: add VSUP supply property

[Piyush Patle]

Document the optional VSUP supply used by the HX711 on-chip regulator.

Signed-off-by: Piyush Patle <piyushpatle228@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
 .../devicetree/bindings/iio/adc/avia-hx711.yaml     | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
index 1ea60dff98d5..0baf620e9057 100644
--- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
@@ -33,6 +33,19 @@ properties:
     description:
       Analog supply voltage (AVDD).
 
+  vsup-supply:
+    description:
+      Supply voltage for the on-chip regulator (VSUP).
+
+  dvdd-supply:
+    description:
+      Digital supply voltage (DVDD). On the HX711, DVDD is a
+      board-supplied digital rail; it was missing from the original
+      binding. On the HX710B, DVDD must be greater than or equal to
+      AVDD; when DVDD is a battery rail and AVDD is a regulated supply,
+      one channel monitors the DVDD-AVDD difference for battery level
+      detection.
+
   clock-frequency:
     description:
       Controls the SCK bit-bang timing. The value is used to derive the
-- 
2.43.0