linux-kernel - Re: [PATCH v14 2/4] dt-bindings: i2c: Add Maxim MAX735x/MAX736x variants

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Date:   Tue, 2 May 2023 10:46:11 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Patrick Rudolph <patrick.rudolph@...ements.com>,
        Peter Rosin <peda@...ntia.se>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v14 2/4] dt-bindings: i2c: Add Maxim MAX735x/MAX736x
 variants

On 02/05/2023 08:52, Patrick Rudolph wrote:
> Hi Peter,
> it could indeed cause problems when VDD1 != VDD2 and at both needs to
> be enabled.
> The pca9846 datasheet seems to refer to VDD1 as VDD. Thus I could add
> an optional "vdd2" regulator to the binding and driver.
> 
> Please let me know if that's what you had in mind.

Don't top post.

In such case vdd-supply should not be used for VDD2.

Best regards,
Krzysztof