[PATCH 1/4] dt-bindings: iio: adc: sd modulator: add vref support

[Olivier Moysan]

Add vref supply support to sigma delta modulator.

Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxx>
---
 .../devicetree/bindings/iio/adc/sigma-delta-modulator.yaml    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
index a390343d0c2a..2afe0765e971 100644
--- a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
@@ -8,6 +8,7 @@ title: Device-Tree bindings for sigma delta modulator
 
 maintainers:
   - Arnaud Pouliquen <arnaud.pouliquen@xxxxxx>
+  - Olivier Moysan <olivier.moysan@xxxxxx>
 
 properties:
   compatible:
@@ -21,6 +22,9 @@ properties:
   '#io-channel-cells':
     const: 0
 
+  vref-supply:
+    description: Phandle to the vref input analog reference voltage.
+
 required:
   - compatible
   - '#io-channel-cells'
-- 
2.17.1