These chips have a vdd supply input, which should be modelled in
the bindings as well. Vref is only the voltage reference supply for
the string DAC.
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@xxxxxxxxx>
---
.../devicetree/bindings/iio/dac/microchip,mcp4922.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
index 19374401e509..a3e80e90eeca 100644
--- a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
@@ -21,11 +21,14 @@ properties:
reg:
maxItems: 1
+ vdd-supply: true
+
vref-supply: true
required:
- compatible
- reg
+ - vdd-supply
- vref-supply
allOf:
@@ -42,6 +45,7 @@ examples:
dac@0 {
compatible = "microchip,mcp4912";
reg = <0>;
+ vdd-supply = <&dac_reg>;
vref-supply = <&dac_vref>;
};
};
--
2.40.0
