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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
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