1 FocalTech EDT-FT5x06 Polytouch driver
2 =====================================
4 There are 5 variants of the chip for various touch panel sizes
9 FT5726NEI 5.7” .. 11.6"
11 The software interface is identical for all those chips, so that
12 currently there is no need for the driver to distinguish between the
13 different chips. Nevertheless distinct compatible strings are used so
14 that a distinction can be added if necessary without changing the DT
19 - compatible: "edt,edt-ft5206"
23 or: "evervision,ev-ft5726"
24 or: "focaltech,ft6236"
26 - reg: I2C slave address of the chip (0x38)
27 - interrupts: interrupt specification for the touchdetect
31 - reset-gpios: GPIO specification for the RESET input
32 - wake-gpios: GPIO specification for the WAKE input
33 - vcc-supply: Regulator that supplies the touchscreen
35 - pinctrl-names: should be "default"
36 - pinctrl-0: a phandle pointing to the pin settings for the
39 - threshold: allows setting the "click"-threshold in the range
42 - gain: allows setting the sensitivity in the range from 0 to
43 31. Note that lower values indicate higher
46 - offset: allows setting the edge compensation in the range from
49 - offset-x: Same as offset, but applies only to the horizontal position.
50 Range from 0 to 80, only supported by evervision,ev-ft5726
53 - offset-y: Same as offset, but applies only to the vertical position.
54 Range from 0 to 80, only supported by evervision,ev-ft5726
57 - touchscreen-size-x : See touchscreen.txt
58 - touchscreen-size-y : See touchscreen.txt
59 - touchscreen-fuzz-x : See touchscreen.txt
60 - touchscreen-fuzz-y : See touchscreen.txt
61 - touchscreen-inverted-x : See touchscreen.txt
62 - touchscreen-inverted-y : See touchscreen.txt
63 - touchscreen-swapped-x-y : See touchscreen.txt
66 polytouch: edt-ft5x06@38 {
67 compatible = "edt,edt-ft5406", "edt,edt-ft5x06";
69 pinctrl-names = "default";
70 pinctrl-0 = <&edt_ft5x06_pins>;
71 interrupt-parent = <&gpio2>;
72 interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
73 reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
74 wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;