tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1Device tree bindings for Goodix GT9xx series touchscreen controller
2
3Required properties:
4
5 - compatible : Should be "goodix,gt911"
6 or "goodix,gt9110"
7 or "goodix,gt912"
8 or "goodix,gt927"
9 or "goodix,gt9271"
10 or "goodix,gt928"
11 or "goodix,gt967"
12 - reg : I2C address of the chip. Should be 0x5d or 0x14
13 - interrupt-parent : Interrupt controller to which the chip is connected
14 - interrupts : Interrupt to which the chip is connected
15
16Optional properties:
17
18 - irq-gpios : GPIO pin used for IRQ. The driver uses the
19 interrupt gpio pin as output to reset the device.
20 - reset-gpios : GPIO pin used for reset
21
22 - touchscreen-inverted-x : X axis is inverted (boolean)
23 - touchscreen-inverted-y : Y axis is inverted (boolean)
24 - touchscreen-swapped-x-y : X and Y axis are swapped (boolean)
25 (swapping is done after inverting the axis)
26
27Example:
28
29 i2c@00000000 {
30 /* ... */
31
32 gt928@5d {
33 compatible = "goodix,gt928";
34 reg = <0x5d>;
35 interrupt-parent = <&gpio>;
36 interrupts = <0 0>;
37
38 irq-gpios = <&gpio1 0 0>;
39 reset-gpios = <&gpio1 1 0>;
40 };
41
42 /* ... */
43 };