From dac90dc23211996286c3b934057d0df77cfef0b4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Fri, 28 Mar 2014 09:23:02 -0700 Subject: Input: edt-ft5x06 - add DT support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Lothar Waßmann Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/edt-ft5x06.txt | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt (limited to 'Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt') 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>; + }; -- cgit v1.2.3