Added documentation about the "adi,use-external-reference"
property.
Signed-off-by: Paul Cercueil <paul.cercu...@analog.com>
---
Documentation/devicetree/bindings/iio/dac/ad7303.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/dac/ad7303.txt
b/Documentation/devicetree/bindings/iio/dac/ad7303.txt
index 914610f..de6b32f 100644
--- a/Documentation/devicetree/bindings/iio/dac/ad7303.txt
+++ b/Documentation/devicetree/bindings/iio/dac/ad7303.txt
@@ -7,6 +7,9 @@ Required properties:
- Vdd-supply: Phandle to the Vdd power supply
Optional properties:
+ - adi,use-external-reference: If set, the external reference voltage
+ supply is used. Otherwise, the internal reference voltage supply is
+ used.
- REF-supply: Phandle to the external reference voltage supply. This
should
only be set if there is an external reference voltage connected to
the REF
pin. If the property is not set Vdd/2 is used as the reference
voltage.
--
1.7.10.4
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