Messages in this thread Patch in this message | | | From | Alistair Francis <> | Subject | [PATCH v8 2/4] dt-bindings: input: Add Cypress TT2100 touchscreen controller | Date | Tue, 2 Aug 2022 22:58:25 +1000 |
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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,code" property in a "button" sub-node can be used.
Signed-off-by: Alistair Francis <alistair@alistair23.me> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> --- .../input/touchscreen/cypress,tt21000.yaml | 101 ++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml new file mode 100644 index 000000000000..3fc4b7011040 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,tt21000.yaml @@ -0,0 +1,101 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/cypress,tt21000.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cypress TT2100 touchscreen controller + +description: The Cypress TT2100 series (also known as "CYTTSP5" after + the marketing name Cypress TrueTouch Standard Product series 5). + +maintainers: + - Alistair Francis <alistair@alistair23.me> + +allOf: + - $ref: touchscreen.yaml# + +properties: + compatible: + const: cypress,tt21000 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + vdd-supply: + description: Regulator for voltage. + + reset-gpios: + maxItems: 1 + + linux,keycodes: + $ref: /schemas/types.yaml#/definitions/uint32 + description: EV_ABS specific event code generated by the axis. + +patternProperties: + "^button@[0-9]+$": + type: object + properties: + reg: + maxItems: 1 + linux,keycodes: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Keycode to emit + + required: + - reg + - linux,keycodes + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - vdd-supply + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/input/linux-event-codes.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + touchscreen@24 { + #address-cells = <1>; + #size-cells = <0>; + + compatible = "cypress,tt21000"; + 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_LOW>; + vdd-supply = <®_touch>; + + button@0 { + reg = <0>; + linux,keycodes = <KEY_HOMEPAGE>; + }; + + button@1 { + reg = <1>; + linux,keycodes = <KEY_MENU>; + }; + + button@2 { + reg = <2>; + linux,keycodes = <KEY_BACK>; + }; + }; + }; +... -- 2.37.1
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