linux-kernel - Re: [PATCH v2 3/4] dt-bindings: i2c: Add regulator to pca954x and max735x

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Date:   Sun, 9 Jan 2022 01:17:17 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Patrick Rudolph <patrick.rudolph@...ements.com>
Cc:     Peter Rosin <peda@...ntia.se>, Rob Herring <robh+dt@...nel.org>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/4] dt-bindings: i2c: Add regulator to pca954x and
 max735x

Hi Patrick,

Thank you for the patch.

On Sat, Jan 08, 2022 at 07:57:57PM +0100, Patrick Rudolph wrote:
> Add a regulator called vdd also present in datasheets of PCA954x
> and MAX735x and update the examples.
> 
> Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml | 5 +++++
>  Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml | 5 +++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> index dc924ec934ca..93eda07718e8 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-max735x.yaml
> @@ -57,6 +57,9 @@ properties:
>      description: if present, overrides i2c-mux-idle-disconnect
>      $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
>  
> +  vdd-supply:
> +    description: A voltage regulator supplying power to the chip.
> +
>  required:
>    - compatible
>    - reg
> @@ -75,6 +78,8 @@ examples:
>              #size-cells = <0>;
>              reg = <0x74>;
>  
> +            vdd-supply = <&p3v3>;
> +
>              i2c@1 {
>                  #address-cells = <1>;
>                  #size-cells = <0>;

This should be part of patch 1/4 (or better in my opinion, the two
binding files should be merged into a single one).

> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> index 9f1726d0356b..b28d05dc956d 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
> @@ -59,6 +59,9 @@ properties:
>      description: if present, overrides i2c-mux-idle-disconnect
>      $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state
>  
> +  vdd-supply:
> +    description: A voltage regulator supplying power to the chip.
> +
>  required:
>    - compatible
>    - reg
> @@ -79,6 +82,8 @@ examples:
>              #size-cells = <0>;
>              reg = <0x74>;
>  
> +            vdd-supply = <&p3v3>;
> +
>              interrupt-parent = <&ipic>;
>              interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
>              interrupt-controller;

For this part,

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

-- 
Regards,

Laurent Pinchart