linux-kernel - Re: [PATCH v3 1/3] dt-bindings: hwmon: Document adt7475 pin-function properties

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Message-ID: <20220424165209.GA748231@roeck-us.net>
Date:   Sun, 24 Apr 2022 09:52:09 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Chris Packham <chris.packham@...iedtelesis.co.nz>
Cc:     jdelvare@...e.com, robh+dt@...nel.org, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: hwmon: Document adt7475 pin-function
 properties

On Wed, Mar 23, 2022 at 04:40:54PM +1300, Chris Packham wrote:
> The adt7473, adt7475, adt7476 and adt7490 have pins that can be used for
> different functions. Add bindings so that it is possible to describe
> what pin functions are intended by the hardware design.
> 
> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
> Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Still waiting for DT maintainer approval.

Guenter

> ---
> 
> Notes:
>     Changes in v3:
>     - None
>     Changes in v2:
>     - Add review from Krzysztof
> 
>  .../devicetree/bindings/hwmon/adt7475.yaml    | 22 +++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
> index 7d9c083632b9..22beb37f1bf1 100644
> --- a/Documentation/devicetree/bindings/hwmon/adt7475.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
> @@ -61,6 +61,26 @@ patternProperties:
>      $ref: /schemas/types.yaml#/definitions/uint32
>      enum: [0, 1]
>  
> +  "adi,pin(5|10)-function":
> +    description: |
> +      Configures the function for pin 5 on the adi,adt7473 and adi,adt7475. Or
> +      pin 10 on the adi,adt7476 and adi,adt7490.
> +    $ref: /schemas/types.yaml#/definitions/string
> +    enum:
> +      - pwm2
> +      - smbalert#
> +
> +  "adi,pin(9|14)-function":
> +    description: |
> +      Configures the function for pin 9 on the adi,adt7473 and adi,adt7475. Or
> +      pin 14 on the adi,adt7476 and adi,adt7490
> +    $ref: /schemas/types.yaml#/definitions/string
> +    enum:
> +      - tach4
> +      - therm#
> +      - smbalert#
> +      - gpio
> +
>  required:
>    - compatible
>    - reg
> @@ -79,6 +99,8 @@ examples:
>          adi,bypass-attenuator-in0 = <1>;
>          adi,bypass-attenuator-in1 = <0>;
>          adi,pwm-active-state = <1 0 1>;
> +        adi,pin10-function = "smbalert#";
> +        adi,pin14-function = "tach4";
>        };
>      };
>