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45 lines
1.2 KiB
Plaintext
45 lines
1.2 KiB
Plaintext
Cypress I2C Touchpad
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Required properties:
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- compatible: must be "cypress,cyapa".
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- reg: I2C address of the chip.
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- interrupt-parent: a phandle for the interrupt controller (see interrupt
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binding[0]).
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- interrupts: interrupt to which the chip is connected (see interrupt
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binding[0]).
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Optional properties:
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- wakeup-source: touchpad can be used as a wakeup source.
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- pinctrl-names: should be "default" (see pinctrl binding [1]).
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- pinctrl-0: a phandle pointing to the pin settings for the device (see
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pinctrl binding [1]).
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- vcc-supply: a phandle for the regulator supplying 3.3V power.
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
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Example:
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&i2c0 {
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/* ... */
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/* Cypress Gen3 touchpad */
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touchpad@67 {
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compatible = "cypress,cyapa";
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reg = <0x24>;
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interrupt-parent = <&gpio>;
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interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */
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wakeup-source;
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};
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/* Cypress Gen5 and later touchpad */
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touchpad@24 {
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compatible = "cypress,cyapa";
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reg = <0x24>;
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interrupt-parent = <&gpio>;
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interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */
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wakeup-source;
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};
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/* ... */
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};
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