linux-kernel - Re: [PATCH v6 1/2] dt-bindings: iio: frequency: add admfm2000

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Date: Thu, 18 Jan 2024 16:09:47 +0000
From: Conor Dooley <conor@...nel.org>
To: Kim Seer Paller <kimseer.paller@...log.com>
Cc: linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jonathan Cameron <jic23@...nel.org>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, Crt Mori <cmo@...exis.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>
Subject: Re: [PATCH v6 1/2] dt-bindings: iio: frequency: add admfm2000

Hey,

On Thu, Jan 18, 2024 at 04:58:55PM +0800, Kim Seer Paller wrote:
> Dual microwave down converter module with input RF and LO frequency
> ranges from 0.5 to 32 GHz and an output IF frequency range from 0.1 to
> 8 GHz. It consists of a LNA, mixer, IF filter, DSA, and IF amplifier
> for each down conversion path.
> 
> Signed-off-by: Kim Seer Paller <kimseer.paller@...log.com>
> ---
> V5 -> V6: Moved array of switch and attenuation GPIOs to the channel node.
>           Changed pin coords with friendly names. Removed Reviewed-by tag.
> V4 -> V5: Added Reviewed-by tag.
> V3 -> V4: Updated the description of the properties with multiple entries and
>           defined the order.
> V2 -> V3: Adjusted indentation to resolve wrong indentation warning. 
>           Changed node name to converter. Updated the descriptions to clarify
>           the properties.
> V1 -> V2: Removed '|' after description. Specified the pins connected to
>           the GPIOs. Added additionalProperties: false. Changed node name to gpio.
>           Aligned < syntax with the previous syntax in the examples.
> 
>  .../bindings/iio/frequency/adi,admfm2000.yaml | 129 ++++++++++++++++++
>  MAINTAINERS                                   |   7 +
>  2 files changed, 136 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
> new file mode 100644
> index 000000000000..6f2c91c38666
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
> @@ -0,0 +1,129 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright 2023 Analog Devices Inc.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/frequency/adi,admfm2000.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ADMFM2000 Dual Microwave Down Converter
> +
> +maintainers:
> +  - Kim Seer Paller <kimseer.paller@...log.com>
> +
> +description:
> +  Dual microwave down converter module with input RF and LO frequency ranges
> +  from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz.
> +  It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down
> +  conversion path.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,admfm2000
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +patternProperties:
> +  "^channel@[0-1]$":
> +    type: object
> +    description: Represents a channel of the device.
> +
> +    additionalProperties: false
> +
> +    properties:
> +      reg:
> +        description:
> +          The channel number.
> +        minimum: 0
> +        maximum: 1
> +
> +      adi,mode:
> +        description:
> +          RF path selected for the channel.
> +            0 - Direct IF mode
> +            1 - Mixer mode
> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        enum: [0, 1]

How come this is an enum, rather than a boolean property such as
"adi,mixer-mode"?

Cheers,
Conor.

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