dt-bindings: iio: adc: ti,tsc2046: add vref-supply property

Add property for the voltage reference supply.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220904100203.3614502-1-o.rempel@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
index 0b48814c0dc2740b8d069411d7a7be33985670ca..bdf3bba2d7507eacde9e96a9cfebd403ed510158 100644 (file)
--- a/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
@@ -23,6 +23,9 @@ properties:
   interrupts:
     maxItems: 1
 
+  vref-supply:
+    description: Optional supply of the reference voltage
+
   "#io-channel-cells":
     const: 1