[PATCH v4 1/6] dt-bindings: iio: dac: ad5504: add output-range and missing gpios
COLD47d
REVIEWED: 3 (3M)
From: Taha Ed-Dafili <hidden>
Date: 2026-08-17 21:11:31
Also in:
linux-iio, lkml
Subsystem:
analog devices inc iio drivers, iio subsystem and drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Nuno Sá, Michael Hennerich, Jonathan Cameron, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Revision v4 of 3 in this series; 1 review trailer.
Revisions (3)
- v4 current
- v5 [diff vs current]
- v6 [diff vs current]
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, clr-gpios, ldac-gpios and datasheet links, and provide a complete usage example. Signed-off-by: Taha Ed-Dafili <redacted> Acked-by: Conor Dooley <conor.dooley@microchip.com> --- .../bindings/iio/dac/adi,ad5504.yaml | 39 ++++++++++++++++++- 1 file changed, 38 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..e0123dceaa33 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@metafoo.de> - Jonathan Cameron <jic23@kernel.org> -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:
@@ -27,6 +29,29 @@ 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 + + clr-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
@@ -34,9 +59,17 @@ required: - compatible - reg +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 +78,10 @@ examples: compatible = "adi,ad5504"; vcc-supply = <&dac_vcc>; interrupts = <55 IRQ_TYPE_EDGE_FALLING>; + + output-range-microvolt = <0 60000000>; + clr-gpios = <&gpio 4 GPIO_ACTIVE_LOW>; + ldac-gpios = <&gpio 5 GPIO_ACTIVE_LOW>; }; }; ...
--
2.55.0