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[209.85.220.65]) by mx.google.com with SMTPS id 92sor6289324plw.48.2019.03.21.01.21.20 for (Google Transport Security); Thu, 21 Mar 2019 01:21:20 -0700 (PDT) Received-SPF: pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; X-Received: by 2002:a17:902:a5c9:: with SMTP id t9mr2228455plq.196.1553156480222; Thu, 21 Mar 2019 01:21:20 -0700 (PDT) Received: from localhost.localdomain ([49.206.202.234]) by smtp.gmail.com with ESMTPSA id b138sm6288681pfb.48.2019.03.21.01.21.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Mar 2019 01:21:19 -0700 (PDT) From: Jagan Teki To: Dmitry Torokhov , Bastien Nocera , Rob Herring Cc: Henrik Rydberg , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Mark Rutland , linux-amarula@amarulasolutions.com, Michael Trimarchi , Jagan Teki Subject: [PATCH v7 1/4] dt-bindings: input: touchscreen: goodix: Document regulator properties Date: Thu, 21 Mar 2019 13:51:01 +0530 Message-Id: <20190321082104.2874-2-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190321082104.2874-1-jagan@amarulasolutions.com> References: <20190321082104.2874-1-jagan@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="J/YsD8di"; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Goodix CTP controllers support analog, digital and gpio regulator supplies on relevant controller pin configurations. Out of which AVDD28 and VDDIO regulators are required in few goodix CTP chips during power-on sequence. AVDD22, DVDD12 regulators have no relevant functionality described from datasheet [1]. So, document both AVDD28, VDDIO regulators into optional properties since few of the goodix chip do work without these regulator power-on sequence. [1] GT5663 Datasheet_English_20151106_Rev.01 Signed-off-by: Jagan Teki Reviewed-by: Rob Herring --- Documentation/devicetree/bindings/input/touchscreen/goodix.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt index 8cf0b4d38a7e..255673250bbd 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt @@ -19,6 +19,8 @@ Optional properties: - irq-gpios : GPIO pin used for IRQ. The driver uses the interrupt gpio pin as output to reset the device. - reset-gpios : GPIO pin used for reset + - AVDD28-supply : Analog power supply regulator on AVDD28 pin + - VDDIO-supply : GPIO power supply regulator on VDDIO pin - touchscreen-inverted-x - touchscreen-inverted-y - touchscreen-size-x