[PATCH 1/2] dt-bindings: iio: adc: imx93: Add calibration properties

[Frank Li]

On Thu, Jul 10, 2025 at 09:39:03AM +0200, Primoz Fiser wrote:
> From: Andrej Picej <andrej.picej at norik.com>
>
> Document i.MX93 ADC calibration properties and how to set them.
>
> Signed-off-by: Andrej Picej <andrej.picej at norik.com>
> Signed-off-by: Primoz Fiser <primoz.fiser at norik.com>
> ---
>  .../bindings/iio/adc/nxp,imx93-adc.yaml       | 21 +++++++++++++++++++
>  1 file changed, 21 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml
> index c2e5ff418920..d1c04cf85fe6 100644
> --- a/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml
> +++ b/Documentation/devicetree/bindings/iio/adc/nxp,imx93-adc.yaml
> @@ -52,6 +52,27 @@ properties:
>    "#io-channel-cells":
>      const: 1
>
> +  nxp,calib-avg-en:
> +    default: 1
> +    description:
> +      Enable or disable calibration averaging function (AVGEN).
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 0, 1 ]

bool type should be enough

> +
> +  nxp,calib-nr-samples:
> +    default: 512
> +    description:
> +      Selects number of samples (NRSMPL) to be used during calibration.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 16, 32, 128, 512 ]
> +
> +  nxp,calib-t-sample:
> +    default: 22
> +    description:
> +      Selects sample time (TSAMP) of calibration conversions in ADC clock cycles
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 8, 16, 22, 32 ]

Need some judgement in commit message, such as difference board need
difference nxp,calib-nr-samples value.

Frank
> +
>  required:
>    - compatible
>    - reg
> --
> 2.34.1
>