From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Pawe=C5=82=20Chmiel?= Subject: [PATCH v5 3/3] Input: atmel_mxt_ts: Document optional voltage regulators Date: Fri, 14 Dec 2018 16:12:14 +0100 Message-ID: <20181214151214.5391-4-pawel.mikolaj.chmiel@gmail.com> References: <20181214151214.5391-1-pawel.mikolaj.chmiel@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20181214151214.5391-1-pawel.mikolaj.chmiel@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: nick@shmanahar.org Cc: dmitry.torokhov@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Pawe=C5=82=20Chmiel?= List-Id: linux-input@vger.kernel.org Document new optional voltage regulators, which can be used to power down/up touchscreen. Signed-off-by: Paweł Chmiel Reviewed-by: Rob Herring --- Changes from v1: - Added reviewed-by --- .../devicetree/bindings/input/atmel,maxtouch.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt index c88919480d37..17930ecadad3 100644 --- a/Documentation/devicetree/bindings/input/atmel,maxtouch.txt +++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.txt @@ -31,6 +31,12 @@ Optional properties for main touchpad device: - reset-gpios: GPIO specifier for the touchscreen's reset pin (active low) +- avdd-supply: Analog power supply. It powers up the analog channel block + of the controller to detect the touches. + +- vdd-supply: Digital power supply. It powers up the digital block + of the controller to enable i2c communication. + Example: touch@4b { @@ -38,4 +44,6 @@ Example: reg = <0x4b>; interrupt-parent = <&gpio>; interrupts = ; + avdd-supply = <&atsp_reg>; + vdd-supply = <&tsp_reg>; }; -- 2.17.1