45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
* ChipOne icn8318 I2C touchscreen controller
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Required properties:
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- compatible : "chipone,icn8318"
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- reg : I2C slave address of the chip (0x40)
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- interrupts : interrupt specification for the icn8318 interrupt
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- wake-gpios : GPIO specification for the WAKE input
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- touchscreen-size-x : horizontal resolution of touchscreen (in pixels)
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- touchscreen-size-y : vertical resolution of touchscreen (in pixels)
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Optional properties:
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- pinctrl-names : should be "default"
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- pinctrl-0: : a phandle pointing to the pin settings for the
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control gpios
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- touchscreen-fuzz-x : horizontal noise value of the absolute input
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device (in pixels)
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- touchscreen-fuzz-y : vertical noise value of the absolute input
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device (in pixels)
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- touchscreen-inverted-x : X axis is inverted (boolean)
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- touchscreen-inverted-y : Y axis is inverted (boolean)
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- touchscreen-swapped-x-y : X and Y axis are swapped (boolean)
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Swapping is done after inverting the axis
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Example:
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i2c@00000000 {
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/* ... */
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chipone_icn8318@40 {
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compatible = "chipone,icn8318";
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reg = <0x40>;
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interrupt-parent = <&pio>;
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interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* EINT9 (PG9) */
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pinctrl-names = "default";
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pinctrl-0 = <&ts_wake_pin_p66>;
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wake-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
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touchscreen-size-x = <800>;
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touchscreen-size-y = <480>;
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touchscreen-inverted-x;
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touchscreen-swapped-x-y;
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};
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/* ... */
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};
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