linux-kernel - Re: [PATCH v2 2/4] dt-bindings: iio: hmc425a: add entry for LTC6373

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Date: Wed, 10 Jan 2024 16:18:18 +0000
From: Conor Dooley <conor@...nel.org>
To: Dumitru Ceclan <mitrutzceclan@...il.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>,
	Jonathan Cameron <jic23@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Ceclan Dumitru <dumitru.ceclan@...log.com>
Subject: Re: [PATCH v2 2/4] dt-bindings: iio: hmc425a: add entry for LTC6373

On Wed, Jan 10, 2024 at 05:37:10PM +0200, Dumitru Ceclan wrote:
> The LTC6373 is a silicon, 3-bit Fully-Differential digital instrumentation
> amplifier that supports the following programmable gains (Vout/Vin):
>  G = 0.25, 0.5, 1, 2, 4, 8, 16 + Shutdown.
> 
> Signed-off-by: Dumitru Ceclan <mitrutzceclan@...il.com>

Acked-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

> ---
>  .../bindings/iio/amplifiers/adi,hmc425a.yaml       | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
> index a434cb8ddcc9..3a470459b965 100644
> --- a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
> +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
> @@ -21,6 +21,8 @@ description: |
>    HMC540S 1 dB LSB Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz
>      https://www.analog.com/media/en/technical-documentation/data-sheets/hmc540s.pdf
>  
> +  LTC6373 is a 3-Bit precision instrumentation amplifier with fully differential outputs
> +    https://www.analog.com/media/en/technical-documentation/data-sheets/ltc6373.pdf
>  
>  properties:
>    compatible:
> @@ -28,6 +30,7 @@ properties:
>        - adi,adrf5740
>        - adi,hmc425a
>        - adi,hmc540s
> +      - adi,ltc6373
>  
>    vcc-supply: true
>  
> @@ -38,6 +41,7 @@ properties:
>          ADRF5740  - 4 GPIO connected to D2-D5
>          HMC540S   - 4 GPIO connected to V1-V4
>          HMC425A   - 6 GPIO connected to V1-V6
> +        LTC6373   - 3 GPIO connected to A0-A2
>      minItems: 1
>      maxItems: 6
>  
> @@ -64,6 +68,16 @@ allOf:
>          ctrl-gpios:
>            minItems: 4
>            maxItems: 4
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: adi,ltc6373
> +    then:
> +      properties:
> +        ctrl-gpios:
> +          minItems: 3
> +          maxItems: 3
>  
>  required:
>    - compatible
> -- 
> 2.42.0
> 

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