[PATCH v2 1/5] dt-bindings: iio: dac: ad5504: add output-range and missing gpios
From: Taha Ed-Dafili
Date: Tue Mar 10 2026 - 13:52:03 EST
The AD5504 output range (0-30V or 0-60V) is determined by the R_SEL pin.
Use standard output-range-microvolt and range-sel-gpios properties to
describe the hardware configuration of the R_SEL pin. Ensure mutual
exclusivity using the not/required logic. Additionally, add missing
vlogic-supply, clear-gpios, ldac-gpios and datasheet links, and provide
a complete usage example.
Suggested-by: David Lechner <dlechner@xxxxxxxxxxxx>
Suggested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Taha Ed-Dafili <0rayn.dev@xxxxxxxxx>
---
.../bindings/iio/dac/adi,ad5504.yaml | 40 ++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml
index 9c2c038683b4..c0b2d470949a 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5504.yaml
@@ -10,8 +10,10 @@ maintainers:
- Lars-Peter Clausen <lars@xxxxxxxxxx>
- Jonathan Cameron <jic23@xxxxxxxxxx>
-description:
+description: |
High voltage (up to 60V) DACs with temperature sensor alarm function
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad5504.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad5501.pdf
properties:
compatible:
@@ -27,16 +29,48 @@ properties:
maxItems: 1
vcc-supply: true
+ vlogic-supply: true
+
+ output-range-microvolt:
+ description: |
+ Specify the channel output full scale range. The R_SEL pin
+ determines if the range is 0-30V or 0-60V.
+ items:
+ - const: 0
+ - enum: [30000000, 60000000]
+ default: [0, 60000000]
+
+ range-sel-gpios:
+ description:
+ GPIO connected to the R_SEL pin to select the output voltage range.
+ maxItems: 1
+
+ clear-gpios:
+ description: GPIO that controls the /CLR pin (active low).
+ maxItems: 1
+
+ ldac-gpios:
+ description: GPIO that controls the /LDAC pin (active low).
+ maxItems: 1
additionalProperties: false
required:
- compatible
- reg
+ - vcc-supply
+
+allOf:
+ - not:
+ required:
+ - range-sel-gpios
+ - output-range-microvolt
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+
spi {
#address-cells = <1>;
#size-cells = <0>;
@@ -45,6 +79,10 @@ examples:
compatible = "adi,ad5504";
vcc-supply = <&dac_vcc>;
interrupts = <55 IRQ_TYPE_EDGE_FALLING>;
+
+ output-range-microvolt = <0 60000000>;
+ clear-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ ldac-gpios = <&gpio 5 GPIO_ACTIVE_LOW>;
};
};
...
--
2.47.3