[PATCH] dt-bindings: iio: dds: Add AD9832/AD9835 binding

[PATCH] dt-bindings: iio: dds: Add AD9832/AD9835 binding

[Hungyu Lin]

Add devicetree binding documentation for AD9832 and AD9835 DDS devices.

These devices are SPI-controlled direct digital synthesizers
requiring AVDD, DVDD supplies and an external master clock.

Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
---
 .../bindings/iio/dds/adi,ad9832.yaml          | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml

diff --git a/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
new file mode 100644
index 000000000000..7e2eece086d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dds/adi,ad9832.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD9832 / AD9835 DDS
+
+maintainers:
+  - Hungyu Lin <dennylin0707@gmail.com>
+
+description: |
+  Analog Devices AD9832 and AD9835 are SPI-controlled direct digital
+  synthesizers (DDS) capable of generating programmable frequency and
+  phase output signals using an external master clock.
+
+properties:
+  compatible:
+    enum:
+      - adi,ad9832
+      - adi,ad9835
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 20000000
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: mclk
+
+  avdd-supply:
+    description: Analog power supply
+
+  dvdd-supply:
+    description: Digital power supply
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - avdd-supply
+  - dvdd-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ad9832@0 {
+            compatible = "adi,ad9832";
+            reg = <0>;
+            spi-max-frequency = <20000000>;
+            clocks = <&mclk>;
+            clock-names = "mclk";
+            avdd-supply = <&vdd_3v3>;
+            dvdd-supply = <&vdd_3v3>;
+        };
+    };
-- 
2.34.1

Re: [PATCH] dt-bindings: iio: dds: Add AD9832/AD9835 binding

[sashiko-bot]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] Missing reference to standard SPI peripheral properties schema restricts valid SPI configurations.
--

commit 05158b905a98b93285ae76fe23056051bd698d9e
Author: Hungyu Lin <dennylin0707@gmail.com>

dt-bindings: iio: dds: Add AD9832/AD9835 binding

This commit adds device tree binding documentation for the AD9832 and
AD9835 SPI-controlled direct digital synthesizers.

> diff --git a/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
> new file mode 100644
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml

[ ... ]

> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - avdd-supply
> +  - dvdd-supply
> +
> +unevaluatedProperties: false

Does this binding need a reference to the standard SPI peripheral properties
schema?

Since unevaluatedProperties is set to false without including a reference to
/schemas/spi/spi-peripheral-props.yaml#, standard SPI properties provided by
a board's device tree (such as spi-cpol, spi-cpha, spi-cs-high, or
spi-rx-delay-us) will be incorrectly rejected by dtbs_check.

Should this schema include an allOf block to inherit the common SPI
properties so that different board designs and controller requirements can
be correctly evaluated?

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260508233730.77834-1-dennylin0707@gmail.com?part=1

Re: [PATCH] dt-bindings: iio: dds: Add AD9832/AD9835 binding

[Conor Dooley]

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Jonathan,

What's the story with adding bindings for things that are in staging?

Cheers,
Conor.

On Fri, May 08, 2026 at 11:37:30PM +0000, Hungyu Lin wrote:
> Add devicetree binding documentation for AD9832 and AD9835 DDS devices.
> 
> These devices are SPI-controlled direct digital synthesizers
> requiring AVDD, DVDD supplies and an external master clock.
> 
> Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
> ---
>  .../bindings/iio/dds/adi,ad9832.yaml          | 66 +++++++++++++++++++
>  1 file changed, 66 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
> new file mode 100644
> index 000000000000..7e2eece086d0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/dds/adi,ad9832.yaml
> @@ -0,0 +1,66 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/dds/adi,ad9832.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices AD9832 / AD9835 DDS
> +
> +maintainers:
> +  - Hungyu Lin <dennylin0707@gmail.com>
> +
> +description: |
> +  Analog Devices AD9832 and AD9835 are SPI-controlled direct digital
> +  synthesizers (DDS) capable of generating programmable frequency and
> +  phase output signals using an external master clock.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,ad9832
> +      - adi,ad9835
> +
> +  reg:
> +    maxItems: 1
> +
> +  spi-max-frequency:
> +    maximum: 20000000
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: mclk
> +
> +  avdd-supply:
> +    description: Analog power supply
> +
> +  dvdd-supply:
> +    description: Digital power supply
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - avdd-supply
> +  - dvdd-supply
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        ad9832@0 {
> +            compatible = "adi,ad9832";
> +            reg = <0>;
> +            spi-max-frequency = <20000000>;
> +            clocks = <&mclk>;
> +            clock-names = "mclk";
> +            avdd-supply = <&vdd_3v3>;
> +            dvdd-supply = <&vdd_3v3>;
> +        };
> +    };
> -- 
> 2.34.1
> 

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