linux-kernel - Re: [PATCH v3 2/2] dt-bindings: iio: frequency: add admv1013 doc

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Date:   Tue, 2 Nov 2021 12:50:40 -0500
From:   Rob Herring <robh@...nel.org>
To:     Antoniu Miclaus <antoniu.miclaus@...log.com>
Cc:     jic23@...nel.org, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        nuno.sa@...log.com
Subject: Re: [PATCH v3 2/2] dt-bindings: iio: frequency: add admv1013 doc

On Mon, Nov 01, 2021 at 12:04:20PM +0200, Antoniu Miclaus wrote:
> Add device tree bindings for the ADMV1013 Upconverter.
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
> ---
>  .../bindings/iio/frequency/adi,admv1013.yaml  | 119 ++++++++++++++++++
>  1 file changed, 119 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml
> new file mode 100644
> index 000000000000..47993253a586
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/frequency/adi,admv1013.yaml
> @@ -0,0 +1,119 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/frequency/adi,admv1013.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ADMV1013 Microwave Upconverter
> +
> +maintainers:
> +  - Antoniu Miclaus <antoniu.miclaus@...log.com>
> +
> +description: |
> +   Wideband, microwave upconverter optimized for point to point microwave
> +   radio designs operating in the 24 GHz to 44 GHz frequency range.
> +
> +   https://www.analog.com/en/products/admv1013.html
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,admv1013
> +
> +  reg:
> +    maxItems: 1
> +
> +  spi-max-frequency:
> +    maximum: 1000000
> +
> +  clocks:
> +    description:
> +      Definition of the external clock.
> +    minItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: lo_in
> +
> +  clock-output-names:
> +    maxItems: 1
> +
> +  vcm-supply:
> +    description:
> +      Analog voltage regulator.
> +
> +  adi,vga-powerdown:
> +    description:
> +      Power Down the Voltage Gain Amplifier Circuit available at
> +      BG_RBIAS2 pin.
> +    type: boolean
> +
> +  adi,mixer-powerdown:
> +    description:
> +      Power Down the Mixer Circuit. Enable to put the block in
> +      a power down state.
> +    type: boolean
> +
> +  adi,quad-powerdown:
> +    description:
> +      Power Down the Quadrupler. Enable to put the block in
> +      a power down state.
> +    type: boolean
> +
> +  adi,bg-powerdown:
> +    description:
> +      Power Down the Transmitter Band Gap. Enable to put the part in
> +      a power down state.
> +    type: boolean
> +
> +  adi,mixer-if-enable:
> +    description:
> +      Enable the Intermediate Frequency Mode. Either IF Mode or I/Q Mode
> +      can be enabled at a time.
> +    type: boolean
> +
> +  adi,detector-enable:
> +    description:
> +      Enable the Envelope Detector available at output pins VENV_P and
> +      VENV_N. Disable to reduce power consumption.
> +    type: boolean
> +
> +  adi,quad-se-mode:
> +    description:
> +      Switch the LO path from differential to single-ended operation.
> +      Set value 6 for Single-Ended Mode, Negative Side Disabled.
> +      Set value 9 for Single-Ended Mode, Positive Side Disabled.
> +      Set value 12 for Differential Mode.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [6, 9, 12]

All these vendor properties are fixed based on the board design or 
something a user may want to change? The latter does not belong in DT.

Rob