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Message-ID: <cfb17cbc-b8cf-c3ce-cf77-7e13e12c42eb@linaro.org>
Date:   Tue, 2 May 2023 10:46:11 +0200
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Subject: Re: [PATCH v14 2/4] dt-bindings: i2c: Add Maxim MAX735x/MAX736x
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To:     Patrick Rudolph <patrick.rudolph@9elements.com>,
        Peter Rosin <peda@axentia.se>
Cc:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        linux-i2c@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <20230501091552.847240-1-patrick.rudolph@9elements.com>
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 <CALNFmy1gxUD-C62SH5GxA=fq8eKYxiOHe8wqXGsVdzsyiJc6Xg@mail.gmail.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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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