1 FocalTech EDT-FT5x06 Polytouch driver
2 =====================================
4 There are 3 variants of the chip for various touch panel sizes
10 The software interface is identical for all those chips, so that
11 currently there is no need for the driver to distinguish between the
12 different chips. Nevertheless distinct compatible strings are used so
13 that a distinction can be added if necessary without changing the DT
18 - compatible: "edt,edt-ft5206"
22 or: "focaltech,ft6236"
24 - reg: I2C slave address of the chip (0x38)
25 - interrupts: interrupt specification for the touchdetect
29 - reset-gpios: GPIO specification for the RESET input
30 - wake-gpios: GPIO specification for the WAKE input
32 - pinctrl-names: should be "default"
33 - pinctrl-0: a phandle pointing to the pin settings for the
36 - threshold: allows setting the "click"-threshold in the range
39 - gain: allows setting the sensitivity in the range from 0 to
40 31. Note that lower values indicate higher
43 - offset: allows setting the edge compensation in the range from
45 - touchscreen-size-x : See touchscreen.txt
46 - touchscreen-size-y : See touchscreen.txt
47 - touchscreen-fuzz-x : See touchscreen.txt
48 - touchscreen-fuzz-y : See touchscreen.txt
49 - touchscreen-inverted-x : See touchscreen.txt
50 - touchscreen-inverted-y : See touchscreen.txt
51 - touchscreen-swapped-x-y : See touchscreen.txt
54 polytouch: edt-ft5x06@38 {
55 compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
57 pinctrl-names = "default";
58 pinctrl-0 = <&edt_ft5x06_pins>;
59 interrupt-parent = <&gpio2>;
60 interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
61 reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
62 wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;