diff options
Diffstat (limited to 'Documentation/devicetree/bindings/input/touchscreen')
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt | 55 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt | 30 |
2 files changed, 85 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt new file mode 100644 index 000000000000..76db96704a60 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt @@ -0,0 +1,55 @@ +FocalTech EDT-FT5x06 Polytouch driver +===================================== + +There are 3 variants of the chip for various touch panel sizes +FT5206GE1 2.8" .. 3.8" +FT5306DE4 4.3" .. 7" +FT5406EE8 7" .. 8.9" + +The software interface is identical for all those chips, so that +currently there is no need for the driver to distinguish between the +different chips. Nevertheless distinct compatible strings are used so +that a distinction can be added if necessary without changing the DT +bindings. + + +Required properties: + - compatible: "edt,edt-ft5206" + or: "edt,edt-ft5306" + or: "edt,edt-ft5406" + + - reg: I2C slave address of the chip (0x38) + - interrupt-parent: a phandle pointing to the interrupt controller + serving the interrupt for this chip + - interrupts: interrupt specification for the touchdetect + interrupt + +Optional properties: + - reset-gpios: GPIO specification for the RESET input + - wake-gpios: GPIO specification for the WAKE input + + - pinctrl-names: should be "default" + - pinctrl-0: a phandle pointing to the pin settings for the + control gpios + + - threshold: allows setting the "click"-threshold in the range + from 20 to 80. + + - gain: allows setting the sensitivity in the range from 0 to + 31. Note that lower values indicate higher + sensitivity. + + - offset: allows setting the edge compensation in the range from + 0 to 31. + +Example: + polytouch: edt-ft5x06@38 { + compatible = "edt,edt-ft5406", "edt,edt-ft5x06"; + reg = <0x38>; + pinctrl-names = "default"; + pinctrl-0 = <&edt_ft5x06_pins>; + interrupt-parent = <&gpio2>; + interrupts = <5 0>; + reset-gpios = <&gpio2 6 1>; + wake-gpios = <&gpio4 9 0>; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt new file mode 100644 index 000000000000..2faf1f1fa39e --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt @@ -0,0 +1,30 @@ +* Neonode infrared touchscreen controller + +Required properties: +- compatible: must be "neonode,zforce" +- reg: I2C address of the chip +- interrupts: interrupt to which the chip is connected +- gpios: gpios the chip is connected to + first one is the interrupt gpio and second one the reset gpio +- x-size: horizontal resolution of touchscreen +- y-size: vertical resolution of touchscreen + +Example: + + i2c@00000000 { + /* ... */ + + zforce_ts@50 { + compatible = "neonode,zforce"; + reg = <0x50>; + interrupts = <2 0>; + + gpios = <&gpio5 6 0>, /* INT */ + <&gpio5 9 0>; /* RST */ + + x-size = <800>; + y-size = <600>; + }; + + /* ... */ + }; |