linux-kernel - Re: [PATCH 1/2] dt-bindings: input: cyttsp5: document vddio-supply

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Message-ID: <66005714-ce1e-1968-ae5a-881ddac756d8@linaro.org>
Date:   Fri, 18 Nov 2022 09:11:14 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     "Lin, Meng-Bo" <linmengbo0689@...tonmail.com>,
        linux-input@...r.kernel.org
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alistair Francis <alistair@...stair23.me>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: input: cyttsp5: document vddio-supply

On 17/11/2022 20:05, Lin, Meng-Bo wrote:
> The Samsung touchscreen controllers are often used with external pull-up

Samsung or Cypress?

> for the interrupt line and the I2C lines, so we might need to enable
> a regulator to bring the lines into usable state. Otherwise, this might
> cause spurious interrupts and reading from I2C will fail.
> 
> Document support for a "vddio-supply" that is enabled by the cyttsp5
> driver so that the regulator gets enabled when needed.
> 

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof