From d8a07f620077fc84a2e94610334a35132dbeb2a8 Mon Sep 17 00:00:00 2001
From: Kurt Borja <kuurtb@gmail.com>
Date: Tue, 14 Jul 2026 18:21:23 -0500
Subject: dt-bindings: iio: adc: Add reference-sources property

Some ADCs have configurable voltage reference sources for each channel.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: David Lechner (TI) <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
---
 Documentation/devicetree/bindings/iio/adc/adc.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml
index b9bc02b5b07a..8f608bf0b24d 100644
--- a/Documentation/devicetree/bindings/iio/adc/adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml
@@ -73,6 +73,13 @@ properties:
       device design and can interact with other characteristics such as
       settling time.
 
+  reference-sources:
+    $ref: /schemas/types.yaml#/definitions/string-array
+    description:
+      Indicates the voltage reference source or sources for this channel. Some
+      ADCs usually allow choosing between internal reference sources or a pair
+      of external pins.
+
 anyOf:
   - oneOf:
       - required:
-- 
cgit v1.2.3