[PATCH v2 2/2] dt-bindings: input: Add documentation for cyttsp5
From: Mylène Josserand <hidden>
Date: 2017-08-18 06:23:49
Also in:
linux-devicetree, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Dmitry Torokhov, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add the Cypress TrueTouch Generation 5 touchscreen device tree bindings documentation. It can use I2C or SPI bus. This touchscreen can handle some defined zone that are designed and sent as button. To be able to customize the keycode sent, the "linux,keycodes" property can be used. Signed-off-by: Mylène Josserand <redacted> --- .../bindings/input/touchscreen/cypress,cyttsp5.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.txt
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.txt b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.txt
new file mode 100644
index 000000000000..3fc4cad1cbb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cyttsp5.txt@@ -0,0 +1,41 @@ +* Cypress cyttsp touchscreen controller, generation 5 + +Required properties: + - compatible : must be "cypress,cyttsp5" + - reg : Device I2C address or SPI chip select number + - interrupt-parent : the phandle for the gpio controller + (see interrupt binding[0]). + - interrupts : (gpio) interrupt to which the chip is connected + (see interrupt binding[0]). + +Optional properties: + - reset-gpios : the reset gpio the chip is connected to + (see GPIO binding[1] for more details). +Some other touchscreen optional properties can be defined such as +"touchscreen-size-x". See ./touchscreen.txt[2] for more details. + +This touchscreen can handle some buttons that are touchscreen's defined zones. +Each button's event can be customized using a property: + - linux,keycodes: List of keycode to emit. + +[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt +[1]: Documentation/devicetree/bindings/gpio/gpio.txt +[2]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt + +Example: +&i2c0 { + [...] + + touchscreen@24 { + compatible = "cypress,cyttsp5"; + reg = <0x24>; + + pinctrl-names = "default"; + pinctrl-0 = <&tp_reset_ds203>; + interrupt-parent = <&pio>; + interrupts = <1 5 IRQ_TYPE_LEVEL_LOW>; + reset-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; + touchscreen-swapped-x-y; + linux,keycodes = <KEY_HOMEPAGE>, <KEY_MENU>, <KEY_BACK>; + }; +};
--
2.11.0