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

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Message-ID: 
 <PH0PR03MB71410860593D3C7253B200FCF9702@PH0PR03MB7141.namprd03.prod.outlook.com>
Date: Fri, 19 Jan 2024 00:30:09 +0000
From: "Paller, Kim Seer" <KimSeer.Paller@...log.com>
To: Conor Dooley <conor@...nel.org>
CC: "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jonathan
 Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "Hennerich,
 Michael" <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

> -----Original Message-----
> From: Conor Dooley <conor@...nel.org>
> Sent: Friday, January 19, 2024 12:10 AM
> To: Paller, Kim Seer <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>; Hennerich, Michael
> <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
> 
> [External]
> 
> 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"?

I used an enum, perhaps because it was easier to implement. However, this
could be changed if a boolean property might be more suitable in this case.
Is that the preferred option?

Best regards,
Kim Seer Paller