GNU Linux-libre 4.14.251-gnu1
[releases.git] / Documentation / devicetree / bindings / input / touchscreen / silead_gsl1680.txt
1 * GSL 1680 touchscreen controller
2
3 Required properties:
4 - compatible              : Must be one of the following, depending on the model:
5                             "silead,gsl1680"
6                             "silead,gsl1688"
7                             "silead,gsl3670"
8                             "silead,gsl3675"
9                             "silead,gsl3692"
10 - reg                     : I2C slave address of the chip (0x40)
11 - interrupt-parent        : a phandle pointing to the interrupt controller
12                             serving the interrupt for this chip
13 - interrupts              : interrupt specification for the gsl1680 interrupt
14 - power-gpios             : Specification for the pin connected to the gsl1680's
15                             shutdown input. This needs to be driven high to take the
16                             gsl1680 out of its low power state
17 - touchscreen-size-x      : See touchscreen.txt
18 - touchscreen-size-y      : See touchscreen.txt
19
20 Optional properties:
21 - firmware-name           : File basename (string) for board specific firmware
22 - touchscreen-inverted-x  : See touchscreen.txt
23 - touchscreen-inverted-y  : See touchscreen.txt
24 - touchscreen-swapped-x-y : See touchscreen.txt
25 - silead,max-fingers      : maximum number of fingers the touchscreen can detect
26 - vddio-supply            : regulator phandle for controller VDDIO
27 - avdd-supply             : regulator phandle for controller AVDD
28
29 Example:
30
31 i2c@00000000 {
32         gsl1680: touchscreen@40 {
33                 compatible = "silead,gsl1680";
34                 reg = <0x40>;
35                 interrupt-parent = <&pio>;
36                 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
37                 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
38                 touchscreen-size-x = <480>;
39                 touchscreen-size-y = <800>;
40                 touchscreen-inverted-x;
41                 touchscreen-swapped-x-y;
42                 silead,max-fingers = <5>;
43         };
44 };