[PATCH 1/3] dt-bindings: iio: adc: add Axiado AX3000/AX3005 SARADC

[Jonathan Cameron]

On Thu, 28 May 2026 01:10:23 -0700
Petar Stepanovic <pstepanovic at axiado.com> wrote:

> The Axiado AX3000 and AX3005 SoCs include a 10-bit SAR ADC controller.
> AX3000 supports 16 input channels, while AX3005 supports 8 input
> channels.
> 
> Document the compatible strings, register region, clock, reference
> voltage supply, and IIO channel cells.
> 
> Signed-off-by: Petar Stepanovic <pstepanovic at axiado.com>
Hi Petar,

One minor thing inline. Otherwise looks good to me.

Thanks,

Jonathan

> ---
>  .../bindings/iio/adc/axiado,ax3000-saradc.yaml     | 58 ++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/axiado,ax3000-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/axiado,ax3000-saradc.yaml
> new file mode 100644
> index 000000000000..54592353a7b2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/axiado,ax3000-saradc.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/axiado,ax3000-saradc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Axiado AX3000/AX3005 Successive Approximation Register ADC
> +
> +description:
> +  The Axiado AX3000/AX3005 SAR ADC is a 10-bit ADC with sixteen input
> +  channels on AX3000 and eight input channels on AX3005.
> +
> +maintainers:
> +  - Petar Stepanovic <pstepanovic at axiado.com>
> +  - Akhila Kavi <akavi at axiado.com>
> +  - Prasad Bolisetty <pbolisetty at axiado.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - axiado,ax3000-saradc
> +      - axiado,ax3005-saradc
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  '#io-channel-cells':
> +    const: 1
> +
> +  vref-supply:
> +    description: Reference voltage regulator supplying the ADC
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - '#io-channel-cells'
> +  - vref-supply
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +
> +      saradc at 806a0000 {

Generic names for nodes in DT. So just adc at 806a0000

> +        compatible = "axiado,ax3000-saradc";
> +        reg = <0x0 0x806a0000 0x0 0x400>;
> +        clocks = <&pclk>;
> +        vref-supply = <&vref_reg>;
> +        #io-channel-cells = <1>;
> +      };
> +    };
>