From: Axel Haslam <ahaslam@xxxxxxxxxxxx>
Vcc, iovcc, vrefp, and vrefn are needed for the DAC to work.
Add them as required bindings for ad5791.
Reviewed-by: David Lechner <dlechner@xxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Axel Haslam <ahaslam@xxxxxxxxxxxx>
---
.../bindings/iio/dac/adi,ad5791.yaml | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
index fe664378c966..79cb4b78a88a 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
@@ -26,6 +26,22 @@ properties:
vdd-supply: true
vss-supply: true
+ vcc-supply:
+ description:
+ Supply that powers the chip.
+
+ iovcc-supply:
+ description:
+ Supply for the digital interface.
+
+ vrefp-supply:
+ description:
+ Positive referance input voltage range. From 5v to (vdd - 2.5)
+
+ vrefn-supply:
+ description:
+ Negative referance input voltage range. From (vss + 2.5) to 0.
+
adi,rbuf-gain2-en:
description: Specify to allow an external amplifier to be connected in a
gain of two configuration.
@@ -47,6 +63,10 @@ required:
- reg
- vdd-supply
- vss-supply
+ - vcc-supply
+ - iovcc-supply
+ - vrefp-supply
+ - vrefn-supply
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
@@ -65,6 +85,10 @@ examples:
reg = <0>;
vss-supply = <&dac_vss>;
vdd-supply = <&dac_vdd>;
+ vcc-supply = <&dac_vcc>;
+ iovcc-supply = <&dac_iovcc>;
+ vrefp-supply = <&dac_vrefp>;
+ vrefn-supply = <&dac_vrefn>;
reset-gpios = <&gpio_bd 16 GPIO_ACTIVE_LOW>;
clear-gpios = <&gpio_bd 17 GPIO_ACTIVE_LOW>;
ldac-gpios = <&gpio_bd 18 GPIO_ACTIVE_HIGH>;
--
2.34.1
