Messages in this thread Patch in this message | | | From | Paweł Chmiel <> | Subject | [PATCH v2 2/2] Input: atmel_mxt_ts: Document optional voltage regulators | Date | Tue, 17 Jul 2018 20:16:26 +0200 |
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Document new optional voltage regulators, which can be used to power down/up touchscreen.
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> --- Documentation/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 = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>; + avdd-supply = <&atsp_reg>; + vdd-supply = <&tsp_reg>; }; -- 2.7.4
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